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BlackRock Advantage Global Fund, Inc. BlackRock Advantage SMID Cap Fund, Inc. BlackRock Allocation Target Shares BlackRock Balanced Fund, Inc. BlackRock Bond Fund, Inc. BlackRock California Municipal Series Trust BlackRock Capital Appreciation Fund, Inc. BlackRock Emerging Markets Fund, Inc. BlackRock Equity Dividend Fund BlackRock Financial Institutions Series Trust BlackRock Funds SM BlackRock Funds II BlackRock Funds III BlackRock Funds IV BlackRock Funds V BlackRock Funds VI BlackRock Global Allocation Fund, Inc. BlackRock Index Funds, Inc.

BlackRock International Select Equity Fund BlackRock Large Cap Focus Growth Fund, Inc. BlackRock Large Cap Focus Value Fund, Inc. BlackRock Large Cap Series Funds, Inc. BlackRock Liquidity Funds BlackRock Mid-Cap Value Series, Inc. BlackRock Multi-State Municipal Series Trust BlackRock Municipal Bond Fund, Inc. BlackRock Municipal Series Trust BlackRock Natural Resources Trust BlackRock Series Fund, Inc. BlackRock Series Fund II, Inc. BlackRock Series, Inc. BlackRock Strategic Global Bond Fund, Inc. BlackRock Unconstrained Equity Fund BlackRock Variable Series Funds, Inc. BlackRock Variable Series Funds II, Inc.

Supplement dated October 16, 2026 to the Statement of Additional Information (“SAI”) of each of the funds listed in Appendix A (each, a “Fund”), as amended from time to time.

Each Fund’s SAI is amended as follows:

The list in the section entitled “Purchase of Shares - Additional Payments by BlackRock - D. Service Organizations Receiving Additional Payments” in Part II, or in the section entitled “Miscellaneous Additional Payments by BlackRock - D. Service Organizations Receiving Additional Payments,” “Investment Advisory Arrangements - Additional Payments by BlackRock - D. Service Organizations Receiving Additional Payments” or “Investment Adviser and Other Service Providers - Additional Payments by BlackRock - D. Service Organizations Receiving Additional Payments,” as applicable, of each Fund’s current SAI, is deleted in its entirety and replaced with the following:

&Partners AccuTech Systems Corporation ADP Broker-Dealer, Inc. Advisor Credit Exchange, LLC Advisor Group, Inc. AE Wealth Management, LLC Alight Solutions LLC Allianz Life Financial Services, LLC Allianz Life Insurance Company of New York Allianz Life Insurance Company of North America Altruist Financial LLC American Enterprise Investment Services, Inc. American General Life Insurance Company American United Life Insurance Company Annuity Investors Life Insurance Company Anthem Securities LLC Argent Institutional Trust Company Ascensus Broker Dealer Services, Inc. Ascensus, Inc. Atomic Brokerage LLC Avantax Investment Services, LLC Bancroft Capital LLC

Bank of America, N.A. Bank of New York Mellon Barclays Capital Inc. Benefit Plans Administrative Services, Inc. Benefit Trust Company Beta Capital Securities LLC bfinance US Ltd. BlackRock Advisors, LLC BMO Capital Markets Corp. BNP Paribas BNP Paribas Investment Partners UK Limited BNY Mellon, N.A. BofA Securities, Inc. BOKF, N.A. Brighthouse Life Insurance Company Brighthouse Life Insurance Company of NY Broadridge Business Process Outsourcing, LLC Brown Brothers Harriman & Co. Cabrera Capital Markets, LLC Capital One, N.A. Cetera Advisor Networks LLC Cetera Advisors LLC

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Cetera Financial Group Cetera Financial Specialists LLC Cetera Investment Services LLC CF Secured, LLC Charles Schwab & Co., Inc. Charles Schwab Trust Bank Chicago Mercantile Exchange Inc. CIM Investment Management, Inc. Citco Securities, LLC CitiBank, National Association Citigroup Global Markets, Inc. Citizens Bank Citizens Business Bank CME Shareholder Servicing LLC CMFG Life Insurance Company Comerica Bank Commonwealth Financial Network Computershare Trust Company Conduent HR Services, LLC Delaware Life Insurance Company Delaware Trust Company Deutsche Bank AG Deutsche Bank Trust Company Americas Digital Retirement Solutions, Inc. Dunham & Associates Investment Counsel, Inc. Dynasty Financial Partners LLC Edward D. Jones & Co., L.P. Empire Fidelity Investments Life Insurance Company Empower Annuity Insurance Company of America Empower Financial Services, Inc. Empower Life & Annuity Insurance Company of New York Empower Plan Services, LLC Envestnet Asset Management, Inc. Equitable Advisors, LLC Equitable Life Insurance Company E*trade Savings Bank Federal Deposit Insurance Corporation Fidelity Brokerage Services LLC Fidelity Investments Institutional Operations Company, Inc. Fidelity Investments Life Insurance Company Fifth Third Securities, Inc. First Allied Securities, Inc. First Command Financial Planning, Inc. First Hawaiian Bank First Republic Bank First Security Benefit Life Insurance and Annuity Company of New York First Symetra National Life Insurance Company of New York First-Citizens Bank & Trust Company FIS Brokerage & Securities Services LLC

FNEX Capital, LLC Forethought Life Insurance Company FSC Securities Corporation Genworth Life and Annuity Insurance Company Genworth Life Insurance Company of New York Global Atlantic Distributors, LLC Goldman Sachs & Co. Great Pacific Securities, LLC Guardian Insurance & Annuity Co., Inc. Hancock Whitney Bank Hartford Funds Management Company Hartford Securities Distribution Company, Inc. Hazeltree Fund Services, Inc. Hightower Securities, Inc. Hilltop Securities Inc. HSBC Bank USA, N.A. Huntington Securities, Inc. Institutional Cash Distributors, LLC Integrity Life Insurance Company Interactive Brokers, LLC Investment Trust of California J.P. Morgan Institutional Investments Inc. J.P. Morgan Securities LLC Jefferies LLC Jefferson National Life Insurance Company Jefferson National Life Insurance Company of New York John Hancock Life Insurance Company (U.S.A.) John Hancock Life Insurance Company of New York John Hancock Trust Company JPMorgan Chase Bank, N.A. Kestra Investment Services, LLC Lincoln Financial Advisors Corporation Lincoln Financial Securities Corporation Lincoln Life & Annuity Company of New York Lincoln National Life Insurance Company Lincoln Retirement Services LLC Lombard International Life Assurance Company LPL Financial LLC M&T Securities Inc. Manufacturers and Traders Trust Company Massachusetts Mutual Life Insurance Company Members Life Insurance Company Merrill Lynch, Pierce, Fenner & Smith Incorporated Metavante Corporation Metropolitan Life Insurance Company Mid Atlantic Clearing & Settlement Corporation Midland Life Insurance Company Minnesota Life Insurance Company Mischler Financial Group Mizuho Securities USA Inc. MML Distributors, LLC MML Investors Services, LLC Morgan Stanley & Co. LLC

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Morgan Stanley Distribution, Inc. Morgan Stanley Smith Barney LLC MUFG Union Bank, National Association Nassau Life Insurance Company National Financial Services LLC National Integrity Life Insurance Company National Life Insurance Company Nationwide Financial Services, Inc. Nationwide Fund Distributors LLC Nationwide Retirement Solutions NCB Federal Savings Bank New England Pension Plan Systems, LLC New York Life Insurance and Annuity Corporation Newport Retirement Services, Inc. Northbrook Bank & Trust Company Northern Trust Company Northwestern Mutual Investment Services, LLC Northwestern Mutual Life Insurance Company NYLife Distributors LLC Oppenheimer & Co., Inc. Orion Advisor Services, LLC Osaic Wealth, Inc. Pacific Life & Annuity Company Pacific Life Insurance Company Pacific Select Distributors, LLC Park Avenue Securities LLC Penserra Securities LLC Pershing LLC PFPC Inc. Piper Jaffray & Co. PNC Bank, National Association PNC Capital Markets LLC PNC Investments LLC Principal Bank Principal Life Insurance Company Protective Life and Annuity Insurance Company Protective Life Insurance Company Pruco Life Insurance Company Pruco Life Insurance Company of New Jersey Prudential Annuities Distributors, Inc. Prudential Insurance Company of America Raymond James & Associates, Inc. Raymond James Financial Services, Inc. RBC Capital Markets, LLC Regions Bank Reliance Trust Company Reliastar Life Insurance Company Reliastar Life Insurance Company of New York RiverSource Distributors, Inc. RiverSource Life Insurance Co. of New York RiverSource Life Insurance Company SagePoint Financial, Inc. Sammons Retirement Solutions, Inc. Sanctuary Wealth Group, LLC

Santander Bank, N.A. Saturna Trust Company Securities America, Inc. Securities Finance Trust Company Security Benefit Life Insurance Company Security Financial Resources, Inc. Security Life of Denver Insurance Company SEI Private Trust Company SG Americas Securities, LLC Silicon Valley Bank Standard Insurance Company Standard Retirement Services, Inc. State Farm Life and Accident Assurance Company State Farm Life Insurance Company State Farm VP Management Corp. State Street Bank and Trust Company State Street Global Markets, LLC Stern Brothers & Co. Stifel, Nicolaus & Company, Incorporated Summit Brokerage Services, Inc. SVB Asset Management Symetra Life Insurance Company Syntal Capital Partners, LLC T. Rowe Price Retirement Plan Services, Inc. Talcott Resolution Life and Annuity Insurance Company Talcott Resolution Life Insurance Company TD Ameritrade Clearing, Inc. TD Ameritrade, Inc. TD Prime Services (US) LLC Teachers Insurance and Annuity Association of America Tigress Financial Partners, LLC Transamerica Financial Life Insurance Company Transamerica Life Insurance Company Treasury Brokerage Triad Advisors, LLC Truist Bank U.S. Bancorp Investments, Inc. U.S. Bank, National Association UBATCO & Co. UBS Financial Services, Inc. UBS Securities LLC Ultimus Fund Solutions, LLC UMB Bank, National Association United States Life Insurance Company in the City of New York VALIC Retirement Services Company Vanguard Group, Inc. Vanguard Marketing Corporation Voya Financial Advisors, Inc. Voya Financial Partners, LLC Voya Institutional Plan Services, LLC Voya Insurance and Annuity Company

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Voya Investments Distributor, LLC Voya Retirement Insurance and Annuity Company Waddell & Reed, Inc. Wells Fargo Advisors, LLC Wells Fargo Advisors Financial Network, LLC Wells Fargo Bank, N.A.

Wells Fargo Clearing Services, LLC Wells Fargo Investments, LLC Wells Fargo Securities, LLC Wilmington Trust, National Association Woodbury Financial Services, Inc. ZB, National Association

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Appendix A

BlackRock Advantage Global Fund, Inc.

BlackRock Advantage SMID Cap Fund, Inc.

BlackRock Allocation Target Shares BATS: Securitized Total Return Series BATS: Corporate Credit Total Return Series BATS: High Income Municipal Series BATS: High Income Taxable Series BATS: Mortgage Total Return Series BATS: Interest Rate Hedge Series BATS: Short Duration Taxable Total Return Series BATS: Short Term Municipal Income Series

BlackRock Balanced Fund, Inc.

BlackRock Bond Fund, Inc. BlackRock Total Return Fund

BlackRock California Municipal Series Trust BlackRock California Municipal Opportunities Fund

BlackRock Capital Appreciation Fund, Inc.

BlackRock Emerging Markets Fund, Inc.

BlackRock Equity Dividend Fund

BlackRock Financial Institutions Series Trust BlackRock Summit Cash Reserves Fund

BlackRock Funds SM BlackRock Advantage Emerging Markets Fund BlackRock Advantage International Fund BlackRock Advantage Large Cap Growth Fund BlackRock Advantage Small Cap Core Fund BlackRock Advantage Small Cap Growth Fund BlackRock China A Opportunities Fund BlackRock Commodity Strategies Fund BlackRock Daily Reinvestment Stablecoin Reserve Vehicle BlackRock Defensive Advantage Emerging Markets Fund BlackRock Emerging Markets ex-China Fund BlackRock Energy Opportunities Fund BlackRock Exchange Portfolio BlackRock Global Equity Market Neutral Fund BlackRock Health Sciences Opportunities Portfolio BlackRock High Equity Income Fund

BlackRock Mid-Cap Growth Equity Portfolio BlackRock Real Estate Securities Fund BlackRock Short Obligations Fund BlackRock Sustainable Aware Advantage Emerging Markets Equity Fund BlackRock Sustainable Aware Advantage Large Cap Core Fund BlackRock Tactical Opportunities Fund BlackRock Technology Opportunities Fund BlackRock Wealth Liquid Environmentally Aware Fund Circle Reserve Fund iShares Developed Real Estate Index Fund iShares Enhanced Roll Yield Index Fund iShares FTSE NAREIT All Equity REIT Index Fund iShares Municipal Bond Index Fund iShares Russell Mid-Cap Index Fund iShares Russell Small/Mid-Cap Index Fund iShares Short-Term TIPS Bond Index Fund iShares Total U.S. Stock Market Index Fund iShares U.S. Intermediate Credit Bond Index Fund iShares U.S. Intermediate Government Bond Index Fund iShares U.S. Long Credit Bond Index Fund iShares U.S. Long Government Bond Index Fund iShares U.S. Securitized Bond Index Fund

BlackRock Funds II BlackRock 20/80 Target Allocation Fund BlackRock 40/60 Target Allocation Fund BlackRock 60/40 Target Allocation Fund BlackRock 80/20 Target Allocation Fund BlackRock Dynamic High Income Portfolio BlackRock Global Dividend Portfolio BlackRock Managed Income Fund BlackRock Multi-Asset Income Portfolio BlackRock Retirement Income 2030 Fund

BlackRock Funds III BlackRock Cash Funds: Institutional BlackRock Cash Funds: Treasury BlackRock Diversified Equity Alpha Fund BlackRock Diversified Fixed Income Fund BlackRock LifePath ® Dynamic Retirement Fund BlackRock LifePath ® Dynamic 2030 Fund BlackRock LifePath ® Dynamic 2035 Fund BlackRock LifePath ® Dynamic 2040 Fund BlackRock LifePath ® Dynamic 2045 Fund

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BlackRock Funds IV BlackRock Credit Relative Value Fund BlackRock Systematic Multi-Strategy Fund

BlackRock Funds V BlackRock Core Bond Portfolio BlackRock Floating Rate Income Portfolio BlackRock High Yield Portfolio BlackRock Income Fund BlackRock Inflation Protected Bond Portfolio BlackRock Low Duration Bond Portfolio BlackRock Strategic Income Opportunities Portfolio

BlackRock Funds VI BlackRock Advantage CoreAlpha Bond Fund

BlackRock Global Allocation Fund, Inc.

BlackRock Index Funds, Inc. iShares MSCI EAFE International Index Fund iShares Russell 2000 Small-Cap Index Fund

BlackRock International Select Equity Fund

BlackRock Large Cap Focus Growth Fund, Inc.

BlackRock Large Cap Focus Value Fund, Inc.

BlackRock Large Cap Series Funds, Inc. BlackRock Advantage Large Cap Core Fund BlackRock Advantage Large Cap Value Fund BlackRock Event Driven Equity Fund

BlackRock Liquidity Funds FedFund MuniCash TempCash BlackRock Select Treasury Based Liquidity Fund T-Fund Treasury Trust Fund

BlackRock Mid-Cap Value Series, Inc. BlackRock Mid-Cap Value Fund

BlackRock Multi-State Municipal Series Trust BlackRock New Jersey Municipal Bond Fund BlackRock New York Municipal Opportunities Fund BlackRock Pennsylvania Municipal Bond Fund

BlackRock Municipal Bond Fund, Inc. BlackRock National Municipal Fund BlackRock Short Duration Muni Fund

BlackRock Municipal Series Trust BlackRock Strategic Municipal Opportunities Fund

BlackRock Natural Resources Trust

BlackRock Series Fund, Inc. BlackRock Advantage Large Cap Core Portfolio BlackRock Balanced Portfolio BlackRock Capital Appreciation Portfolio BlackRock Global Allocation Portfolio BlackRock Government Money Market Portfolio

BlackRock Series Fund II, Inc. BlackRock High Yield Portfolio

BlackRock Series, Inc. BlackRock International Fund

BlackRock Strategic Global Bond Fund, Inc.

BlackRock Unconstrained Equity Fund

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BlackRock Basic Value V.I. Fund BlackRock Capital Appreciation V.I. Fund BlackRock Equity Dividend V.I. Fund BlackRock Global Allocation V.I. Fund BlackRock Government Money Market V.I. Fund BlackRock International Index V.I. Fund BlackRock International V.I. Fund

BlackRock Large Cap Focus Growth V.I. Fund BlackRock Managed Volatility V.I. Fund BlackRock S&P 500 Index V.I. Fund BlackRock Small Cap Index V.I. Fund

BlackRock Variable Series Funds II, Inc. BlackRock High Yield V.I. Fund BlackRock Total Return V.I. Fund

Shareholders should retain this Supplement for future reference.

SAI-GLOBAL-1026SUP

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BLACKROCK MULTI-STATE MUNICIPAL SERIES TRUST BlackRock New York Municipal Opportunities Fund (the “Fund”)

Supplement dated September 29, 2026 to the Summary Prospectuses, Prospectuses and Statement of Additional Information (“SAI”) of the Fund, each dated October 28, 2025, as supplemented to date

The Board of Trustees (the “Board”) of BlackRock Multi-State Municipal Series Trust (the “Trust”) has approved a proposal, pursuant to which the following changes will be effective on or about April 6, 2027:

• The Fund will convert to a unitary administration fee structure by entering into a new administration agreement (the “Administration Agreement”) with the Fund’s administrator, BlackRock Advisors, LLC (“BlackRock”), pursuant to which BlackRock will provide administration services and pay for all expenses incurred by the Fund, excluding certain expenses described in the Administration Agreement. Under the Administration Agreement, the Trust, on behalf of the Fund, will pay BlackRock the following fee with respect to each share class: 0.14% for Institutional Shares, 0.12% for Investor A Shares, 0.11% for Investor A1 Shares, 0.12% for Investor C Shares and 0.06% for Class K Shares.

• The Fund’s existing investment management agreement will be amended and restated to (a) remove the provision of administrative services and reduce each breakpoint to the contractual management fee rate schedule as follows: 0.45% of the Fund’s average daily Net Assets not exceeding $1 billion, 0.42% of the Fund’s average daily Net Assets in excess of $1 billion but not exceeding $3 billion, 0.40% of the Fund’s average daily Net Assets in excess of $3 billion but not exceeding $5 billion, 0.39% of the Fund’s average daily Net Assets in excess of $5 billion but not exceeding $10 billion, and 0.38% of the Fund’s average daily Net Assets in excess of $10 billion.

In addition, effective immediately, the third paragraph of the subsection of each Summary Prospectus and Prospectus entitled “Principal Investment Strategies of the Fund,” and “Fund Overview—Principal Investment Strategies of the Fund,” as applicable, the third paragraph of the subsection of each Prospectus entitled “Details About the Fund—How the Fund Invests—Principal Investment Strategies” and the eighth paragraph of the subsection of the SAI entitled “Part I: Information About the Fund—I. Investment Objective and Policies” are deleted in their entirety and replaced with the following:

The Fund may invest in bonds of any maturity. The Fund’s average weighted duration may vary significantly from time to time depending on the views of Fund management.

Shareholders should retain this Supplement for future reference.

PR2SAI-NYMO-0926SUP

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Supplement dated September 11, 2026 to the Statement of Additional Information (“SAI”) of each of the funds listed in Appendix A (each, a “Fund”), as amended from time to time.

Each Fund’s SAI is amended as follows:

Bancroft Capital LLC Bank of America, N.A. Bank of New York Mellon Barclays Capital Inc. Benefit Plans Administrative Services, Inc. Benefit Trust Company Beta Capital Securities LLC bfinance US Ltd. BlackRock Advisors, LLC BMO Capital Markets Corp. BNP Paribas BNP Paribas Investment Partners UK Limited BNY Mellon, N.A. BofA Securities, Inc. BOKF, N.A. Brighthouse Life Insurance Company Brighthouse Life Insurance Company of NY Broadridge Business Process Outsourcing, LLC Brown Brothers Harriman & Co. Cabrera Capital Markets, LLC Capital One, N.A.

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Cetera Advisor Networks LLC Cetera Advisors LLC Cetera Financial Group Cetera Financial Specialists LLC Cetera Investment Services LLC CF Secured, LLC Charles Schwab & Co., Inc. Charles Schwab Trust Bank Chicago Mercantile Exchange Inc. CIM Investment Management, Inc. Citco Securities, LLC CitiBank, National Association Citigroup Global Markets, Inc. Citizens Bank Citizens Business Bank CME Shareholder Servicing LLC CMFG Life Insurance Company Comerica Bank Commonwealth Financial Network Computershare Trust Company Conduent HR Services, LLC Delaware Life Insurance Company Delaware Trust Company Deutsche Bank AG Deutsche Bank Trust Company Americas Digital Retirement Solutions, Inc. Dunham & Associates Investment Counsel, Inc. Dynasty Financial Partners LLC Edward D. Jones & Co., L.P. Empire Fidelity Investments Life Insurance Company Empower Annuity Insurance Company of America Empower Financial Services, Inc. Empower Life & Annuity Insurance Company of New York Empower Plan Services, LLC Envestnet Asset Management, Inc. Equitable Advisors, LLC Equitable Life Insurance Company E*trade Savings Bank Federal Deposit Insurance Corporation Fidelity Brokerage Services LLC Fidelity Investments Institutional Operations Company, Inc. Fidelity Investments Life Insurance Company Fifth Third Securities, Inc. First Allied Securities, Inc. First Command Financial Planning, Inc. First Hawaiian Bank First Republic Bank First Security Benefit Life Insurance and Annuity Company of New York

First Symetra National Life Insurance Company of New York First-Citizens Bank & Trust Company FIS Brokerage & Securities Services LLC FNEX Capital, LLC Forethought Life Insurance Company FSC Securities Corporation Genworth Life and Annuity Insurance Company Genworth Life Insurance Company of New York Global Atlantic Distributors, LLC Goldman Sachs & Co. Great Pacific Securities, LLC Guardian Insurance & Annuity Co., Inc. Hancock Whitney Bank Hartford Funds Management Company Hartford Securities Distribution Company, Inc. Hazeltree Fund Services, Inc. Hightower Securities, Inc. Hilltop Securities Inc. HSBC Bank USA, N.A. Huntington Securities, Inc. Institutional Cash Distributors, LLC Integrity Life Insurance Company Interactive Brokers, LLC Investment Trust of California J.P. Morgan Institutional Investments Inc. J.P. Morgan Securities LLC Jefferies LLC Jefferson National Life Insurance Company Jefferson National Life Insurance Company of New York John Hancock Life Insurance Company (U.S.A.) John Hancock Life Insurance Company of New York John Hancock Trust Company JPMorgan Chase Bank, N.A. Kestra Investment Services, LLC Lincoln Financial Advisors Corporation Lincoln Financial Securities Corporation Lincoln Life & Annuity Company of New York Lincoln National Life Insurance Company Lincoln Retirement Services LLC Lombard International Life Assurance Company LPL Financial LLC M&T Securities Inc. Manufacturers and Traders Trust Company Massachusetts Mutual Life Insurance Company Members Life Insurance Company Merrill Lynch, Pierce, Fenner & Smith Incorporated Metavante Corporation Metropolitan Life Insurance Company Mid Atlantic Clearing & Settlement Corporation Midland Life Insurance Company

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Minnesota Life Insurance Company Mischler Financial Group Mizuho Securities USA Inc. MML Distributors, LLC MML Investors Services, LLC Morgan Stanley & Co. LLC Morgan Stanley Distribution, Inc. Morgan Stanley Smith Barney LLC MUFG Union Bank, National Association Nassau Life Insurance Company National Financial Services LLC National Integrity Life Insurance Company National Life Insurance Company Nationwide Financial Services, Inc. Nationwide Fund Distributors LLC Nationwide Retirement Solutions NCB Federal Savings Bank New England Pension Plan Systems, LLC New York Life Insurance and Annuity Corporation Newport Retirement Services, Inc. Northbrook Bank & Trust Company Northern Trust Company Northwestern Mutual Investment Services, LLC Northwestern Mutual Life Insurance Company NYLife Distributors LLC Oppenheimer & Co., Inc. Orion Advisor Services, LLC Osaic Wealth, Inc. Pacific Life & Annuity Company Pacific Life Insurance Company Pacific Select Distributors, LLC Park Avenue Securities LLC Penserra Securities LLC Pershing LLC PFPC Inc. Piper Jaffray & Co. PNC Bank, National Association PNC Capital Markets LLC PNC Investments LLC Principal Bank Principal Life Insurance Company Protective Life and Annuity Insurance Company Protective Life Insurance Company Pruco Life Insurance Company Pruco Life Insurance Company of New Jersey Prudential Annuities Distributors, Inc. Prudential Insurance Company of America Raymond James & Associates, Inc. Raymond James Financial Services, Inc. RBC Capital Markets, LLC Regions Bank Reliance Trust Company

Reliastar Life Insurance Company Reliastar Life Insurance Company of New York RiverSource Distributors, Inc. RiverSource Life Insurance Co. of New York RiverSource Life Insurance Company SagePoint Financial, Inc. Sammons Retirement Solutions, Inc. Sanctuary Wealth Group, LLC Santander Bank, N.A. Saturna Trust Company Securities America, Inc. Securities Finance Trust Company Security Benefit Life Insurance Company Security Financial Resources, Inc. Security Life of Denver Insurance Company SEI Private Trust Company SG Americas Securities, LLC Silicon Valley Bank Standard Insurance Company State Farm Life and Accident Assurance Company State Farm Life Insurance Company State Farm VP Management Corp. State Street Bank and Trust Company State Street Global Markets, LLC Stern Brothers & Co. Stifel, Nicolaus & Company, Incorporated Summit Brokerage Services, Inc. SVB Asset Management Symetra Life Insurance Company Syntal Capital Partners, LLC T. Rowe Price Retirement Plan Services, Inc. Talcott Resolution Life and Annuity Insurance Company Talcott Resolution Life Insurance Company TD Ameritrade Clearing, Inc. TD Ameritrade, Inc. TD Prime Services (US) LLC Teachers Insurance and Annuity Association of America Tigress Financial Partners, LLC Transamerica Financial Life Insurance Company Transamerica Life Insurance Company Treasury Brokerage Triad Advisors, LLC Truist Bank U.S. Bancorp Investments, Inc. U.S. Bank, National Association UBATCO & Co. UBS Financial Services, Inc. UBS Securities LLC Ultimus Fund Solutions, LLC UMB Bank, National Association

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United States Life Insurance Company in the City of New York VALIC Retirement Services Company Vanguard Group, Inc. Vanguard Marketing Corporation Voya Financial Advisors, Inc. Voya Financial Partners, LLC Voya Institutional Plan Services, LLC Voya Insurance and Annuity Company Voya Investments Distributor, LLC Voya Retirement Insurance and Annuity Company

Waddell & Reed, Inc. Wells Fargo Advisors, LLC Wells Fargo Advisors Financial Network, LLC Wells Fargo Bank, N.A. Wells Fargo Clearing Services, LLC Wells Fargo Investments, LLC Wells Fargo Securities, LLC Wilmington Trust, National Association Woodbury Financial Services, Inc. ZB, National Association

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Appendix A

BlackRock Advantage Global Fund, Inc.

BlackRock Advantage SMID Cap Fund, Inc.

BlackRock Balanced Fund, Inc.

BlackRock Bond Fund, Inc. BlackRock Total Return Fund

BlackRock California Municipal Series Trust BlackRock California Municipal Opportunities Fund

BlackRock Capital Appreciation Fund, Inc.

BlackRock Emerging Markets Fund, Inc.

BlackRock Equity Dividend Fund

BlackRock Financial Institutions Series Trust BlackRock Summit Cash Reserves Fund

BlackRock High Equity Income Fund BlackRock Mid-Cap Growth Equity Portfolio BlackRock Real Estate Securities Fund BlackRock Short Obligations Fund BlackRock Sustainable Aware Advantage Emerging Markets Equity Fund BlackRock Sustainable Aware Advantage Large Cap Core Fund BlackRock Tactical Opportunities Fund BlackRock Technology Opportunities Fund BlackRock Wealth Liquid Environmentally Aware Fund Circle Reserve Fund iShares Developed Real Estate Index Fund iShares Enhanced Roll Yield Index Fund iShares FTSE NAREIT All Equity REIT Index Fund iShares Municipal Bond Index Fund iShares Russell Mid-Cap Index Fund iShares Russell Small/Mid-Cap Index Fund iShares Short-Term TIPS Bond Index Fund iShares Total U.S. Stock Market Index Fund iShares U.S. Intermediate Credit Bond Index Fund iShares U.S. Intermediate Government Bond Index Fund iShares U.S. Long Credit Bond Index Fund iShares U.S. Long Government Bond Index Fund iShares U.S. Securitized Bond Index Fund

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BlackRock LifePath ® Dynamic 2050 Fund BlackRock LifePath ® Dynamic 2055 Fund BlackRock LifePath ® Dynamic 2060 Fund BlackRock LifePath ® Dynamic 2065 Fund BlackRock LifePath ® Dynamic 2070 Fund BlackRock LifePath ® ESG Index Retirement Fund BlackRock LifePath ® ESG Index 2030 Fund BlackRock LifePath ® ESG Index 2035 Fund BlackRock LifePath ® ESG Index 2040 Fund BlackRock LifePath ® ESG Index 2045 Fund BlackRock LifePath ® ESG Index 2050 Fund BlackRock LifePath ® ESG Index 2055 Fund BlackRock LifePath ® ESG Index 2060 Fund BlackRock LifePath ® ESG Index 2065 Fund BlackRock LifePath ® ESG Index 2070 Fund BlackRock LifePath ® Index Retirement Fund BlackRock LifePath ® Index 2030 Fund BlackRock LifePath ® Index 2035 Fund BlackRock LifePath ® Index 2040 Fund BlackRock LifePath ® Index 2045 Fund BlackRock LifePath ® Index 2050 Fund BlackRock LifePath ® Index 2055 Fund BlackRock LifePath ® Index 2060 Fund BlackRock LifePath ® Index 2065 Fund BlackRock LifePath ® Index 2070 Fund iShares MSCI Total International Index Fund iShares Russell 1000 Large-Cap Index Fund iShares S&P 500 Index Fund iShares U.S. Aggregate Bond Index Fund

BlackRock Funds IV BlackRock Credit Relative Value Fund BlackRock Systematic Multi-Strategy Fund

BlackRock Funds VI BlackRock Advantage CoreAlpha Bond Fund

BlackRock Global Allocation Fund, Inc.

BlackRock Index Funds, Inc. iShares MSCI EAFE International Index Fund iShares Russell 2000 Small-Cap Index Fund

BlackRock International Select Equity Fund

BlackRock Large Cap Focus Growth Fund, Inc.

BlackRock Large Cap Focus Value Fund, Inc.

BlackRock Large Cap Series Funds, Inc. BlackRock Advantage Large Cap Core Fund BlackRock Advantage Large Cap Value Fund BlackRock Event Driven Equity Fund

BlackRock Liquidity Funds FedFund MuniCash TempCash BlackRock Select Treasury Based Liquidity Fund T-Fund Treasury Trust Fund

BlackRock Mid-Cap Value Series, Inc. BlackRock Mid-Cap Value Fund

BlackRock Multi-State Municipal Series Trust BlackRock New Jersey Municipal Bond Fund BlackRock New York Municipal Opportunities Fund BlackRock Pennsylvania Municipal Bond Fund

BlackRock Municipal Bond Fund, Inc. BlackRock National Municipal Fund BlackRock Short Duration Muni Fund

BlackRock Municipal Series Trust BlackRock Strategic Municipal Opportunities Fund

BlackRock Natural Resources Trust

BlackRock Series Fund II, Inc. BlackRock High Yield Portfolio

BlackRock Series, Inc. BlackRock International Fund

BlackRock Strategic Global Bond Fund, Inc.

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BlackRock Unconstrained Equity Fund

BlackRock Variable Series Funds, Inc. BlackRock 60/40 Target Allocation ETF V.I. Fund BlackRock Advantage Large Cap Core V.I. Fund BlackRock Advantage Large Cap Value V.I. Fund BlackRock Advantage SMID Cap V.I. Fund BlackRock Basic Value V.I. Fund BlackRock Capital Appreciation V.I. Fund BlackRock Equity Dividend V.I. Fund BlackRock Global Allocation V.I. Fund

BlackRock Government Money Market V.I. Fund BlackRock International Index V.I. Fund BlackRock International V.I. Fund BlackRock Large Cap Focus Growth V.I. Fund BlackRock Managed Volatility V.I. Fund BlackRock S&P 500 Index V.I. Fund BlackRock Small Cap Index V.I. Fund

BlackRock Variable Series Funds II, Inc. BlackRock High Yield V.I. Fund BlackRock Total Return V.I. Fund

Shareholders should retain this Supplement for future reference.

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BlackRock Advantage Global Fund, Inc.

BlackRock Advantage SMID Cap Fund, Inc.

BlackRock Balanced Fund, Inc.

BlackRock Bond Fund, Inc. BlackRock Total Return Fund

BlackRock California Municipal Series Trust BlackRock California Municipal Opportunities Fund

BlackRock Capital Appreciation Fund, Inc.

BlackRock Emerging Markets Fund, Inc.

BlackRock Equity Dividend Fund

BlackRock Financial Institutions Series Trust BlackRock Summit Cash Reserves Fund

BlackRock Funds SM BlackRock Advantage Emerging Markets Fund BlackRock Advantage International Fund BlackRock Advantage Large Cap Growth Fund BlackRock Advantage Small Cap Core Fund BlackRock Advantage Small Cap Growth Fund BlackRock China A Opportunities Fund BlackRock Commodity Strategies Fund BlackRock Defensive Advantage Emerging Markets Fund BlackRock Emerging Markets ex-China Fund BlackRock Energy Opportunities Fund BlackRock Exchange Portfolio BlackRock Global Equity Market Neutral Fund BlackRock Health Sciences Opportunities Portfolio BlackRock High Equity Income Fund BlackRock Mid-Cap Growth Equity Portfolio BlackRock Real Estate Securities Fund BlackRock Short Obligations Fund BlackRock Sustainable Aware Advantage Emerging Markets Equity Fund

BlackRock Sustainable Aware Advantage International Equity Fund BlackRock Sustainable Aware Advantage Large Cap Core Fund BlackRock Tactical Opportunities Fund BlackRock Technology Opportunities Fund BlackRock Wealth Liquid Environmentally Aware Fund Circle Reserve Fund iShares Developed Real Estate Index Fund iShares Enhanced Roll Yield Index Fund iShares FTSE NAREIT All Equity REIT Index Fund iShares Municipal Bond Index Fund iShares Russell Mid-Cap Index Fund iShares Russell Small/Mid-Cap Index Fund iShares Short-Term TIPS Bond Index Fund iShares Total U.S. Stock Market Index Fund iShares U.S. Intermediate Credit Bond Index Fund iShares U.S. Intermediate Government Bond Index Fund iShares U.S. Long Credit Bond Index Fund iShares U.S. Long Government Bond Index Fund iShares U.S. Securitized Bond Index Fund

BlackRock Funds III BlackRock Cash Funds: Institutional BlackRock Cash Funds: Treasury BlackRock Diversified Equity Fund BlackRock Diversified Fixed Income Fund BlackRock LifePath ® Dynamic Retirement Fund BlackRock LifePath ® Dynamic 2030 Fund BlackRock LifePath ® Dynamic 2035 Fund BlackRock LifePath ® Dynamic 2040 Fund BlackRock LifePath ® Dynamic 2045 Fund BlackRock LifePath ® Dynamic 2050 Fund BlackRock LifePath ® Dynamic 2055 Fund BlackRock LifePath ® Dynamic 2060 Fund BlackRock LifePath ® Dynamic 2065 Fund BlackRock LifePath ® Dynamic 2070 Fund

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BlackRock LifePath ® ESG Index Retirement Fund BlackRock LifePath ® ESG Index 2030 Fund BlackRock LifePath ® ESG Index 2035 Fund BlackRock LifePath ® ESG Index 2040 Fund BlackRock LifePath ® ESG Index 2045 Fund BlackRock LifePath ® ESG Index 2050 Fund BlackRock LifePath ® ESG Index 2055 Fund BlackRock LifePath ® ESG Index 2060 Fund BlackRock LifePath ® ESG Index 2065 Fund BlackRock LifePath ® ESG Index 2070 Fund BlackRock LifePath ® Index Retirement Fund BlackRock LifePath ® Index 2030 Fund BlackRock LifePath ® Index 2035 Fund BlackRock LifePath ® Index 2040 Fund BlackRock LifePath ® Index 2045 Fund BlackRock LifePath ® Index 2050 Fund BlackRock LifePath ® Index 2055 Fund BlackRock LifePath ® Index 2060 Fund BlackRock LifePath ® Index 2065 Fund BlackRock LifePath ® Index 2070 Fund iShares MSCI Total International Index Fund iShares Russell 1000 Large-Cap Index Fund iShares S&P 500 Index Fund iShares U.S. Aggregate Bond Index Fund

BlackRock Funds IV BlackRock Credit Relative Value Fund BlackRock Systematic Multi-Strategy Fund

BlackRock Funds VI BlackRock Advantage CoreAlpha Bond Fund

BlackRock Global Allocation Fund, Inc.

BlackRock Index Funds, Inc. iShares MSCI EAFE International Index Fund iShares Russell 2000 Small-Cap Index Fund

BlackRock International Select Equity Fund

BlackRock Large Cap Focus Growth Fund, Inc.

BlackRock Large Cap Focus Value Fund, Inc.

BlackRock Large Cap Series Funds, Inc. BlackRock Advantage Large Cap Core Fund BlackRock Advantage Large Cap Value Fund BlackRock Event Driven Equity Fund

BlackRock Liquidity Funds FedFund MuniCash TempCash BlackRock Select Treasury Based Liquidity Fund T-Fund Treasury Trust Fund

BlackRock Mid-Cap Value Series, Inc. BlackRock Mid-Cap Value Fund

BlackRock Multi-State Municipal Series Trust BlackRock New Jersey Municipal Bond Fund BlackRock New York Municipal Opportunities Fund BlackRock Pennsylvania Municipal Bond Fund

BlackRock Municipal Bond Fund, Inc. BlackRock National Municipal Fund BlackRock Short Duration Muni Fund

BlackRock Municipal Series Trust BlackRock Strategic Municipal Opportunities Fund

BlackRock Natural Resources Trust

BlackRock Series Fund II, Inc. BlackRock High Yield Portfolio

BlackRock Series, Inc. BlackRock International Fund

BlackRock Strategic Global Bond Fund, Inc.

BlackRock Unconstrained Equity Fund

BlackRock Variable Series Funds, Inc. BlackRock 60/40 Target Allocation ETF V.I. Fund

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BlackRock Advantage Large Cap Core V.I. Fund BlackRock Advantage Large Cap Value V.I. Fund BlackRock Advantage SMID Cap V.I. Fund BlackRock Basic Value V.I. Fund BlackRock Capital Appreciation V.I. Fund BlackRock Equity Dividend V.I. Fund BlackRock Global Allocation V.I. Fund BlackRock Government Money Market V.I. Fund BlackRock International Index V.I. Fund BlackRock International V.I. Fund

BlackRock Large Cap Focus Growth V.I. Fund BlackRock Managed Volatility V.I. Fund BlackRock S&P 500 Index V.I. Fund BlackRock Small Cap Index V.I. Fund

BlackRock Variable Series Funds II, Inc. BlackRock High Yield V.I. Fund BlackRock Total Return V.I. Fund

Managed Account Series BlackRock GA Disciplined Volatility Equity Fund BlackRock GA Dynamic Equity Fund

(each, a “Fund” and collectively, the “Funds”)

Supplement dated March 6, 2026 to the Statement of Additional Information (“SAI”) of each Fund, as amended from time to time.

Each Fund’s SAI is amended as follows:

The list in the section entitled “Purchase of Shares — Additional Payments by BlackRock — D. Service Organizations Receiving Additional Payments” in Part II, or in the section entitled “Miscellaneous — Additional Payments by BlackRock — D. Service Organizations Receiving Additional Payments,” “Investment Advisory Arrangements — Additional Payments by BlackRock — D. Service Organizations Receiving Additional Payments” or “Investment Adviser and Other Service Providers — Additional Payments by BlackRock — D. Service Organizations Receiving Additional Payments,” as applicable, of each Fund’s current SAI, is deleted in its entirety and replaced with the following:

&Partners AccuTech Systems Corporation ADP Broker-Dealer, Inc. Advisor Credit Exchange, LLC Advisor Group, Inc. AE Wealth Management, LLC Alight Solutions LLC Allianz Life Financial Services, LLC Allianz Life Insurance Company of New York Allianz Life Insurance Company of North America Altruist Financial LLC American Enterprise Investment Services, Inc. American General Life Insurance Company American United Life Insurance Company Annuity Investors Life Insurance Company Argent Institutional Trust Company Ascensus Broker Dealer Services, Inc. Ascensus, Inc. Atomic Brokerage LLC Avantax Investment Services, LLC Bancroft Capital LLC Bank of America, N.A. Bank of New York Mellon

Barclays Capital Inc. Benefit Plans Administrative Services, Inc. Benefit Trust Company Beta Capital Securities LLC bfinance US Ltd. BlackRock Advisors, LLC BMO Capital Markets Corp. BNP Paribas BNP Paribas Investment Partners UK Limited BNY Mellon, N.A. BofA Securities, Inc. BOKF, N.A. Brighthouse Life Insurance Company Brighthouse Life Insurance Company of NY Broadridge Business Process Outsourcing, LLC Brown Brothers Harriman & Co. Cabrera Capital Markets, LLC Capital One, N.A. Cetera Advisor Networks LLC Cetera Advisors LLC Cetera Financial Group Cetera Financial Specialists LLC Cetera Investment Services LLC

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CF Secured, LLC Charles Schwab & Co., Inc. Charles Schwab Trust Bank Chicago Mercantile Exchange Inc. CIM Investment Management, Inc. Citco Securities, LLC CitiBank, National Association Citigroup Global Markets, Inc. Citizens Bank Citizens Business Bank CME Shareholder Servicing LLC CMFG Life Insurance Company Comerica Bank Commonwealth Financial Network Computershare Trust Company Conduent HR Services, LLC Delaware Life Insurance Company Delaware Trust Company Deutsche Bank AG Deutsche Bank Trust Company Americas Digital Retirement Solutions, Inc. Dunham & Associates Investment Counsel, Inc. Dynasty Financial Partners LLC Edward D. Jones & Co., L.P. Empire Fidelity Investments Life Insurance Company Empower Annuity Insurance Company of America Empower Financial Services, Inc. Empower Life & Annuity Insurance Company of New York Empower Plan Services, LLC Envestnet Asset Management, Inc. Equitable Advisors, LLC Equitable Life Insurance Company E*trade Savings Bank Federal Deposit Insurance Corporation Fidelity Brokerage Services LLC Fidelity Investments Institutional Operations Company, Inc. Fidelity Investments Life Insurance Company Fifth Third Securities, Inc. First Allied Securities, Inc. First Command Financial Planning, Inc. First Hawaiian Bank First Republic Bank First Security Benefit Life Insurance and Annuity Company of New York First Symetra National Life Insurance Company of New York First-Citizens Bank & Trust Company FIS Brokerage & Securities Services LLC FNEX Capital, LLC

Forethought Life Insurance Company FSC Securities Corporation Genworth Life and Annuity Insurance Company Genworth Life Insurance Company of New York Global Atlantic Distributors, LLC Goldman Sachs & Co. Great Pacific Securities, LLC Guardian Insurance & Annuity Co., Inc. Hancock Whitney Bank Hartford Funds Management Company Hartford Securities Distribution Company, Inc. Hazeltree Fund Services, Inc. Hightower Securities, Inc. Hilltop Securities Inc. HSBC Bank USA, N.A. Huntington Securities, Inc. Institutional Cash Distributors, LLC Integrity Life Insurance Company Interactive Brokers, LLC Investment Trust of California J.P. Morgan Institutional Investments Inc. J.P. Morgan Securities LLC Jefferies LLC Jefferson National Life Insurance Company Jefferson National Life Insurance Company of New York John Hancock Life Insurance Company (U.S.A.) John Hancock Life Insurance Company of New York John Hancock Trust Company JPMorgan Chase Bank, N.A. Kestra Investment Services, LLC Lincoln Financial Advisors Corporation Lincoln Financial Securities Corporation Lincoln Life & Annuity Company of New York Lincoln National Life Insurance Company Lincoln Retirement Services LLC Lombard International Life Assurance Company LPL Financial LLC M&T Securities Inc. Manufacturers and Traders Trust Company Massachusetts Mutual Life Insurance Company Members Life Insurance Company Merrill Lynch, Pierce, Fenner & Smith Incorporated Metavante Corporation Metropolitan Life Insurance Company Mid Atlantic Clearing & Settlement Corporation Midland Life Insurance Company Minnesota Life Insurance Company Mischler Financial Group Mizuho Securities USA Inc. MML Distributors, LLC MML Investors Services, LLC

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Morgan Stanley & Co. LLC Morgan Stanley Distribution, Inc. Morgan Stanley Smith Barney LLC MUFG Union Bank, National Association Nassau Life Insurance Company National Financial Services LLC National Integrity Life Insurance Company National Life Insurance Company Nationwide Financial Services, Inc. Nationwide Fund Distributors LLC Nationwide Retirement Solutions NCB Federal Savings Bank New England Pension Plan Systems, LLC New York Life Insurance and Annuity Corporation Newport Retirement Services, Inc. Northbrook Bank & Trust Company Northern Trust Company Northwestern Mutual Investment Services, LLC Northwestern Mutual Life Insurance Company NYLife Distributors LLC Oppenheimer & Co., Inc. Orion Advisor Services, LLC Osaic Wealth, Inc. Pacific Life & Annuity Company Pacific Life Insurance Company Pacific Select Distributors, LLC Park Avenue Securities LLC Penserra Securities LLC Pershing LLC PFPC Inc. Piper Jaffray & Co. PNC Bank, National Association PNC Capital Markets LLC PNC Investments LLC Principal Bank Principal Life Insurance Company Protective Life and Annuity Insurance Company Protective Life Insurance Company Pruco Life Insurance Company Pruco Life Insurance Company of New Jersey Prudential Annuities Distributors, Inc. Prudential Insurance Company of America Raymond James & Associates, Inc. Raymond James Financial Services, Inc. RBC Capital Markets, LLC Regions Bank Reliance Trust Company Reliastar Life Insurance Company Reliastar Life Insurance Company of New York RiverSource Distributors, Inc. RiverSource Life Insurance Co. of New York RiverSource Life Insurance Company

SagePoint Financial, Inc. Sammons Retirement Solutions, Inc. Sanctuary Wealth Group, LLC Santander Bank, N.A. Saturna Trust Company Securities America, Inc. Securities Finance Trust Company Security Benefit Life Insurance Company Security Financial Resources, Inc. Security Life of Denver Insurance Company SEI Private Trust Company SG Americas Securities, LLC Silicon Valley Bank Standard Insurance Company State Farm Life and Accident Assurance Company State Farm Life Insurance Company State Farm VP Management Corp. State Street Bank and Trust Company State Street Global Markets, LLC Stern Brothers & Co. Stifel, Nicolaus & Company, Incorporated Summit Brokerage Services, Inc. SVB Asset Management Symetra Life Insurance Company Syntal Capital Partners, LLC T. Rowe Price Retirement Plan Services, Inc. Talcott Resolution Life and Annuity Insurance Company Talcott Resolution Life Insurance Company TD Ameritrade Clearing, Inc. TD Ameritrade, Inc. TD Prime Services (US) LLC Teachers Insurance and Annuity Association of America Tigress Financial Partners, LLC Transamerica Financial Life Insurance Company Transamerica Life Insurance Company Treasury Brokerage Triad Advisors, LLC Truist Bank U.S. Bancorp Investments, Inc. U.S. Bank, National Association UBATCO & Co. UBS Financial Services, Inc. UBS Securities LLC Ultimus Fund Solutions, LLC UMB Bank, National Association United States Life Insurance Company in the City of New York VALIC Retirement Services Company Vanguard Group, Inc. Vanguard Marketing Corporation

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Voya Financial Advisors, Inc. Voya Financial Partners, LLC Voya Institutional Plan Services, LLC Voya Insurance and Annuity Company Voya Investments Distributor, LLC Voya Retirement Insurance and Annuity Company Waddell & Reed, Inc. Wells Fargo Advisors, LLC

Wells Fargo Advisors Financial Network, LLC Wells Fargo Bank, N.A. Wells Fargo Clearing Services, LLC Wells Fargo Investments, LLC Wells Fargo Securities, LLC Wilmington Trust, National Association Woodbury Financial Services, Inc. ZB, National Association

Shareholders should retain this Supplement for future reference.

SAI-GLOBAL-0326SUP

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BlackRock Advantage Global Fund, Inc.

BlackRock Advantage SMID Cap Fund, Inc.

BlackRock Balanced Fund, Inc.

BlackRock Bond Fund, Inc. BlackRock Total Return Fund

BlackRock California Municipal Series Trust BlackRock California Municipal Opportunities Fund

BlackRock Capital Appreciation Fund, Inc.

BlackRock Emerging Markets Fund, Inc.

BlackRock Equity Dividend Fund

BlackRock Financial Institutions Series Trust BlackRock Summit Cash Reserves Fund

BlackRock Funds SM BlackRock Advantage Emerging Markets Fund BlackRock Advantage International Fund BlackRock Advantage Large Cap Growth Fund BlackRock Advantage Small Cap Core Fund BlackRock Advantage Small Cap Growth Fund BlackRock China A Opportunities Fund BlackRock Commodity Strategies Fund BlackRock Defensive Advantage Emerging Markets Fund BlackRock Emerging Markets ex-China Fund BlackRock Energy Opportunities Fund BlackRock Exchange Portfolio BlackRock Global Equity Market Neutral Fund BlackRock Health Sciences Opportunities Portfolio BlackRock High Equity Income Fund BlackRock Mid-Cap Growth Equity Portfolio BlackRock Real Estate Securities Fund BlackRock Sustainable Aware Advantage Emerging Markets Equity Fund

BlackRock Sustainable Aware Advantage International Equity Fund BlackRock Sustainable Aware Advantage Large Cap Core Fund BlackRock Tactical Opportunities Fund BlackRock Technology Opportunities Fund BlackRock U.S. Insights Long/Short Equity Fund BlackRock Wealth Liquid Environmentally Aware Fund Circle Reserve Fund iShares Developed Real Estate Index Fund iShares Enhanced Roll Yield Index Fund iShares FTSE NAREIT All Equity REIT Index Fund iShares Municipal Bond Index Fund iShares Short-Term TIPS Bond Index Fund iShares U.S. Intermediate Credit Bond Index Fund iShares U.S. Intermediate Government Bond Index Fund iShares U.S. Long Credit Bond Index Fund iShares U.S. Long Government Bond Index Fund iShares U.S. Securitized Bond Index Fund

BlackRock Funds II BlackRock 20/80 Target Allocation Fund BlackRock 40/60 Target Allocation Fund BlackRock 60/40 Target Allocation Fund BlackRock 80/20 Target Allocation Fund BlackRock Global Dividend Portfolio BlackRock Managed Income Fund BlackRock Retirement Income 2030 Fund

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BlackRock Funds IV BlackRock Systematic Multi-Strategy Fund

BlackRock Funds V BlackRock Core Bond Portfolio BlackRock High Yield Portfolio BlackRock Income Fund BlackRock Inflation Protected Bond Portfolio BlackRock Low Duration Bond Portfolio BlackRock Mortgage-Backed Securities Fund BlackRock Strategic Income Opportunities Portfolio BlackRock Sustainable High Yield Bond Fund

BlackRock Funds VI BlackRock Advantage CoreAlpha Bond Fund

BlackRock Global Allocation Fund, Inc.

BlackRock Index Funds, Inc. iShares MSCI EAFE International Index Fund iShares Russell 2000 Small-Cap Index Fund

BlackRock International Select Equity Fund

BlackRock Large Cap Focus Growth Fund, Inc.

BlackRock Large Cap Focus Value Fund, Inc.

BlackRock Large Cap Series Funds, Inc. BlackRock Advantage Large Cap Core Fund BlackRock Advantage Large Cap Value Fund BlackRock Event Driven Equity Fund

BlackRock Liquidity Funds FedFund MuniCash TempCash BlackRock Select Treasury Based Liquidity Fund T-Fund Treasury Trust Fund

BlackRock Mid-Cap Value Series, Inc. BlackRock Mid-Cap Value Fund

BlackRock Multi-State Municipal Series Trust BlackRock New Jersey Municipal Bond Fund BlackRock New York Municipal Opportunities Fund BlackRock Pennsylvania Municipal Bond Fund

BlackRock Municipal Bond Fund, Inc. BlackRock National Municipal Fund BlackRock Short Duration Muni Fund

BlackRock Municipal Series Trust BlackRock Strategic Municipal Opportunities Fund

BlackRock Natural Resources Trust

BlackRock Series Fund II, Inc. BlackRock High Yield Portfolio

BlackRock Series, Inc. BlackRock International Fund

BlackRock Strategic Global Bond Fund, Inc.

BlackRock Unconstrained Equity Fund

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BlackRock Large Cap Focus Growth V.I. Fund BlackRock Managed Volatility V.I. Fund BlackRock S&P 500 Index V.I. Fund BlackRock Small Cap Index V.I. Fund

BlackRock Variable Series Funds II, Inc. BlackRock High Yield V.I. Fund BlackRock Total Return V.I. Fund

Managed Account Series BlackRock GA Disciplined Volatility Equity Fund BlackRock GA Dynamic Equity Fund

Managed Account Series II BlackRock Securitized Income Fund

(each, a “Fund” and collectively, the “Funds”)

Supplement dated December 2, 2025 to the Statement of Additional Information (“SAI”) of each Fund, as amended from time to time.

Each Fund’s SAI is amended as follows:

&Partners AccuTech Systems Corporation ADP Broker-Dealer, Inc. Advisor Credit Exchange, LLC Advisor Group, Inc. AE Wealth Management, LLC Alight Solutions LLC Allianz Life Financial Services, LLC Allianz Life Insurance Company of New York Allianz Life Insurance Company of North America Altruist Financial LLC American Enterprise Investment Services, Inc. American General Life Insurance Company American United Life Insurance Company Annuity Investors Life Insurance Company Argent Institutional Trust Company Ascensus Broker Dealer Services, Inc. Ascensus, Inc. Atomic Brokerage LLC Avantax Investment Services, LLC

Bancroft Capital LLC Bank of America, N.A. Bank of New York Mellon Barclays Capital Inc. Benefit Plans Administrative Services, Inc. Benefit Trust Company Beta Capital Securities LLC BlackRock Advisors, LLC BMO Capital Markets Corp. BNP Paribas BNP Paribas Investment Partners UK Limited BNY Mellon, N.A. BofA Securities, Inc. BOKF, N.A. Brighthouse Life Insurance Company Brighthouse Life Insurance Company of NY Broadridge Business Process Outsourcing, LLC Brown Brothers Harriman & Co. Cabrera Capital Markets, LLC Capital One, N.A.

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Shareholders should retain this Supplement for future reference.

SAI-GLOBAL-1225SUP

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BLACKROCK MULTI-STATE MUNICIPAL SERIES TRUST BlackRock New York Municipal Opportunities Fund (the “Fund”)

Supplement dated December 1, 2025 to the Statement of Additional Information of the Fund (the “SAI”), dated October 28, 2025, as amended or supplemented to date

Effective immediately, the following change is made to the Fund’s SAI:

The chart listing investments and investment strategies in the section of the Fund’s SAI entitled “I. Investment Objective and Policies” as it relates to the Fund is deleted in its entirety and replaced with the following:

BlackRock New York Municipal Opportunities Fund Asset-Backed Securities Asset-Based Securities Precious Metal-Related Securities Borrowing and Leverage X Cash Management X Collateralized Debt Obligations Collateralized Bond Obligations Collateralized Loan Obligations Commercial Paper X Commodity-Linked Derivative Instruments and Hybrid Instruments Qualifying Hybrid Instruments Hybrid Instruments Without Principal Protection Limitations on Leverage Counterparty Risk Convertible Securities Corporate Loans Direct Lending Credit Linked Securities Cyber Security Issues X Debt Securities X Floating Rate and Variable Rate Securities X Inflation-Indexed Bonds X Investment Grade Debt Obligations X High Yield Investments (“Junk Bonds”) X Mezzanine Investments Pay-in-kind Bonds X Supranational Entities Depositary Receipts (ADRs, EDRs and GDRs) Derivatives X Hedging X Speculation X

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BlackRock New York Municipal Opportunities Fund Risk Factors in Derivatives X Correlation Risk X Counterparty Risk X Credit Risk X Currency Risk Illiquidity Risk X Leverage Risk X Market Risk X Valuation Risk X Volatility Risk X Futures X Swap Agreements X Credit Default Swaps and Similar Instruments X Interest Rate Swaps, Floors and Caps X Total Return Swaps X Options X Options on Securities and Securities Indices X Call Options X Put Options X Options on Government National Mortgage Association (“GNMA”) Certificates Options on Swaps (“Swaptions”) X FLEX Options Foreign Exchange Transactions Spot Transactions and FX Forwards Currency Futures Currency Options Currency Swaps Distressed Securities X Environmental, Social and Governance (“ESG”) Integration X Equity Securities X Real Estate-Related Securities Securities of Smaller or Emerging Growth Companies Tracking Stocks Exchange-Traded Notes (“ETNs”) Foreign Investments Foreign Investment Risks Foreign Market Risk Foreign Economy Risk Currency Risk and Exchange Risk Governmental Supervision and Regulation/Accounting Standards Certain Risks of Holding Fund Assets Outside the United States

- 2 -

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BlackRock New York Municipal Opportunities Fund Publicly Available Information Settlement Risk Sovereign Debt Withholding Tax Reclaims Risk U.S. Economic Trading Partners Risk Funding Agreements Guarantees X Illiquid Investments X Index Funds Cash Flows; Expenses Tracking Error Risk S&P 500 Index Russell Indexes MSCI Indexes FTSE Indexes Bloomberg Indexes ICE BofA Indexes Indexed and Inverse Securities X Inflation Risk X Initial Public Offering (“IPO”) Risk Investment in Emerging Markets Brady Bonds China Investments Risk Investment in Other Investment Companies X Exchange-Traded Funds X Issuer Insolvency Risk Lease Obligations X Life Settlement Investments Liquidity Risk Management X Master Limited Partnerships Merger Transaction Risk Money Market Obligations of Domestic Banks, Foreign Banks and Foreign Branches of U.S. Banks X Money Market Securities X Mortgage-Related Securities X Mortgage-Backed Securities X Collateralized Mortgage Obligations (“CMOs”) X Adjustable Rate Mortgage Securities X CMO Residuals Stripped Mortgage-Backed Securities Tiered Index Bonds TBA Commitments X

- 3 -

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BlackRock New York Municipal Opportunities Fund Mortgage Dollar Rolls Net Interest Margin (NIM) Securities Municipal Investments X Risk Factors and Special Considerations Relating to Municipal Bonds X Description of Municipal Bonds X General Obligation Bonds X Revenue Bonds X Private Activity Bonds (“PABs”) X Moral Obligation Bonds X Municipal Notes X Municipal Commercial Paper X Municipal Lease Obligations X Tender Option Bonds X Yields X Variable Rate Demand Obligations (“VRDOs”) X Transactions in Financial Futures Contracts on Municipal Indexes X Call Rights X Municipal Interest Rate Swap Transactions X Insured Municipal Bonds X Build America Bonds X Tax-Exempt Municipal Investments X Participation Notes Portfolio Turnover Rates X Preferred Stock X Tax-Exempt Preferred Shares X Trust Preferred Securities X Proxy Voting Policies Open-End Active and Fixed Income Index Fund Proxy Voting Policy X BlackRock Active Investment Stewardship Climate and Decarbonization Stewardship Guidelines Index Equity Fund Proxy Voting Policy BlackRock Investment Stewardship Climate and Decarbonization Stewardship Guidelines Real Estate Investment Trusts (“REITs”) Recent Market Events X Reference Rate Replacement Risk X Repurchase Agreements and Purchase and Sale Contracts X Restricted Securities X Reverse Repurchase Agreements X Rights Offerings and Warrants to Purchase X Rule 144A Securities X Securities Lending X

Short Sales See note 1 below

- 4 -

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BlackRock New York Municipal Opportunities Fund Special Purpose Acquisition Companies Standby Commitment Agreements X Stripped Securities Structured Notes Taxability Risk X Temporary Defensive Measures X U.S. Government Obligations X U.S. Treasury Obligations X U.S. Treasury Rolls Utility Industries X When-Issued Securities, Delayed Delivery Securities and Forward Commitments X Yields and Ratings X Zero Coupon Securities X

1. The Fund may only make short sales “against-the-box.”

Shareholders should retain this Supplement for future reference.

SAI-NYM-1225SUP

- 5 -

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BlackRock Advantage Global Fund, Inc.

BlackRock Advantage SMID Cap Fund, Inc.

BlackRock Balanced Fund, Inc.

BlackRock Bond Fund, Inc. BlackRock Total Return Fund

BlackRock California Municipal Series Trust BlackRock California Municipal Opportunities Fund

BlackRock Capital Appreciation Fund, Inc.

BlackRock Emerging Markets Fund, Inc.

BlackRock Equity Dividend Fund

BlackRock Funds SM BlackRock Advantage Emerging Markets Fund BlackRock Advantage International Fund BlackRock Advantage Large Cap Growth Fund BlackRock Advantage Small Cap Core Fund BlackRock Advantage Small Cap Growth Fund BlackRock China A Opportunities Fund BlackRock Commodity Strategies Fund BlackRock Defensive Advantage Emerging Markets Fund BlackRock Emerging Markets ex-China Fund BlackRock Energy Opportunities Fund BlackRock Exchange Portfolio BlackRock Global Equity Market Neutral Fund BlackRock Health Sciences Opportunities Portfolio BlackRock High Equity Income Fund BlackRock Mid-Cap Growth Equity Portfolio

BlackRock Real Estate Securities Fund BlackRock Short Obligations Fund BlackRock Sustainable Aware Advantage Emerging Markets Equity Fund BlackRock Sustainable Aware Advantage International Equity Fund BlackRock Sustainable Aware Advantage Large Cap Core Fund BlackRock Tactical Opportunities Fund BlackRock Technology Opportunities Fund BlackRock U.S. Insights Long/Short Equity Fund BlackRock Wealth Liquid Environmentally Aware Fund Circle Reserve Fund iShares Developed Real Estate Index Fund iShares Enhanced Roll Yield Index Fund iShares FTSE NAREIT All Equity REIT Index Fund iShares Municipal Bond Index Fund iShares Russell Mid-Cap Index Fund iShares Russell Small/Mid-Cap Index Fund iShares Short-Term TIPS Bond Index Fund iShares Total U.S. Stock Market Index Fund iShares U.S. Intermediate Credit Bond Index Fund iShares U.S. Intermediate Government Bond Index Fund iShares U.S. Long Credit Bond Index Fund iShares U.S. Long Government Bond Index Fund iShares U.S. Securitized Bond Index Fund

BlackRock Funds III BlackRock Cash Funds: Institutional BlackRock Diversified Equity Fund BlackRock Diversified Fixed Income Fund

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BlackRock LifePath ® Dynamic Retirement Fund BlackRock LifePath ® Dynamic 2030 Fund BlackRock LifePath ® Dynamic 2035 Fund BlackRock LifePath ® Dynamic 2040 Fund BlackRock LifePath ® Dynamic 2045 Fund BlackRock LifePath ® Dynamic 2050 Fund BlackRock LifePath ® Dynamic 2055 Fund BlackRock LifePath ® Dynamic 2060 Fund BlackRock LifePath ® Dynamic 2065 Fund BlackRock LifePath ® Dynamic 2070 Fund BlackRock LifePath ® ESG Index 2030 Fund BlackRock LifePath ® ESG Index 2035 Fund BlackRock LifePath ® ESG Index 2040 Fund BlackRock LifePath ® ESG Index 2045 Fund BlackRock LifePath ® ESG Index 2050 Fund BlackRock LifePath ® ESG Index 2055 Fund BlackRock LifePath ® ESG Index 2060 Fund BlackRock LifePath ® ESG Index 2065 Fund BlackRock LifePath ® ESG Index 2070 Fund BlackRock LifePath ® ESG Index Retirement Fund BlackRock LifePath ® Index Retirement Fund BlackRock LifePath ® Index 2030 Fund BlackRock LifePath ® Index 2035 Fund BlackRock LifePath ® Index 2040 Fund BlackRock LifePath ® Index 2045 Fund BlackRock LifePath ® Index 2050 Fund BlackRock LifePath ® Index 2055 Fund BlackRock LifePath ® Index 2060 Fund BlackRock LifePath ® Index 2065 Fund BlackRock LifePath ® Index 2070 Fund iShares MSCI Total International Index Fund iShares Russell 1000 Large-Cap Index Fund iShares S&P 500 Index Fund iShares U.S. Aggregate Bond Index Fund

BlackRock Funds IV BlackRock Systematic Multi-Strategy Fund

BlackRock Funds VI BlackRock Advantage CoreAlpha Bond Fund

BlackRock Global Allocation Fund, Inc.

BlackRock Index Funds, Inc. iShares MSCI EAFE International Index Fund iShares Russell 2000 Small-Cap Index Fund

BlackRock International Select Equity Fund

BlackRock Large Cap Focus Growth Fund, Inc.

BlackRock Large Cap Focus Value Fund, Inc.

BlackRock Large Cap Series Funds, Inc. BlackRock Advantage Large Cap Core Fund BlackRock Advantage Large Cap Value Fund BlackRock Event Driven Equity Fund

BlackRock Liquidity Funds FedFund MuniCash TempCash BlackRock Select Treasury Based Liquidity Fund T-Fund Treasury Trust Fund

BlackRock Mid-Cap Value Series, Inc. BlackRock Mid-Cap Value Fund

BlackRock Multi-State Municipal Series Trust BlackRock New Jersey Municipal Bond Fund BlackRock New York Municipal Opportunities Fund BlackRock Pennsylvania Municipal Bond Fund

BlackRock Municipal Bond Fund, Inc. BlackRock National Municipal Fund BlackRock Short Duration Muni Fund

BlackRock Municipal Series Trust BlackRock Strategic Municipal Opportunities Fund

BlackRock Natural Resources Trust

BlackRock Series Fund, Inc. BlackRock Advantage Large Cap Core Portfolio BlackRock Balanced Portfolio

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BlackRock Capital Appreciation Portfolio BlackRock Global Allocation Portfolio BlackRock Government Money Market Portfolio BlackRock Balanced Portfolio

BlackRock Series Fund II, Inc. BlackRock High Yield Portfolio

BlackRock Series, Inc. BlackRock International Fund

BlackRock Strategic Global Bond Fund, Inc.

BlackRock Unconstrained Equity Fund

BlackRock Variable Series Funds, Inc. BlackRock 60/40 Target Allocation ETF V.I. Fund BlackRock Advantage Large Cap Core V.I. Fund BlackRock Advantage Large Cap Value V.I. Fund

BlackRock Advantage SMID Cap V.I. Fund BlackRock Basic Value V.I. Fund BlackRock Capital Appreciation V.I. Fund BlackRock Equity Dividend V.I. Fund BlackRock Global Allocation V.I. Fund BlackRock Government Money Market V.I. Fund BlackRock International Index V.I. Fund BlackRock International V.I. Fund BlackRock Large Cap Focus Growth V.I. Fund BlackRock Managed Volatility V.I. Fund BlackRock S&P 500 Index V.I. Fund BlackRock Small Cap Index V.I. Fund

BlackRock Variable Series Funds II, Inc. BlackRock High Yield V.I. Fund BlackRock Total Return V.I. Fund

Managed Account Series II BlackRock Securitized Income Fund

(each, a “Fund” and collectively, the “Funds”)

Supplement dated November 26, 2025 to the Prospectuses and Statement of Additional Information (“SAI”) of each Fund, as amended from time to time

Effective December 1, 2025, each Fund’s Prospectus is amended as follows:

The following information amends and supersedes any corresponding disclosure, if applicable for a Fund, in the section entitled “Valuation of Fund Investments” in each Prospectus relating to the valuation of equity securities and fixed-income securities:

Equity securities and other equity instruments (except ETF options, equity index options or those that are customized) for which market quotations are readily available are valued at market value, which is generally determined using the last reported official closing price or, if a reported closing price is not available, the last traded price on the exchange or market on which the security or instrument is primarily traded at the time of valuation. Shares of underlying open-end funds (including money market funds) are valued at net asset value. Shares of underlying exchange-traded closed-end funds or other ETFs are valued at their most recent closing price.

Each Fund values fixed-income portfolio securities and certain derivative instruments using bid prices provided by dealers or prices (including evaluated prices) supplied by the Fund’s approved independent third-party pricing services, each in accordance with BlackRock’s valuation policies and procedures. Pricing services may use valuation models that utilize certain inputs and assumptions to derive values. Pricing services generally value fixed-income securities assuming orderly transactions of an institutional round lot size, but a Fund may hold or transact in such securities in smaller odd lot sizes. Odd lots of securities in certain asset classes may trade at lower prices than institutional round lots, and the value ultimately realized when the securities are sold could differ from the prices used by the Fund. The amortized cost method of valuation may be used with respect to debt obligations with 60 days or less remaining to maturity unless BlackRock determines in good faith that such method does not represent fair value.

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Effective December 1, 2025, each Fund’s SAI is amended as follows:

The section entitled “Pricing of Shares—Determination of Net Asset Value—Options, Futures, Swaps and Other Derivatives” in each Fund’s SAI, as applicable for a Fund, is deleted in its entirety and replaced with the following:

Options, Futures, Swaps and Other Derivatives. Exchange-traded equity options (except ETF options, equity index options or those that are customized) for which market quotations are readily available are valued at the mean of the last bid and ask prices as quoted on the Exchange or the board of trade on which such options are traded. In the event that there is no mean price available for such exchange-traded equity option held by a Fund on a day on which the Fund values such option, the last bid (long positions) or ask (short positions) price, if available, will be used as the value of such option. If no bid or ask price is available on a day on which a Fund values such option, the prior day’s price will be used, unless BlackRock determines that such prior day’s price no longer reflects the fair value of the option, in which case such option will be treated as a fair value asset. Customized exchange-traded equity options, ETF options, equity index options and OTC derivatives may be valued using a mathematical model which may incorporate a number of market data factors. Financial futures contracts and options thereon, which are traded on exchanges, are valued at their last sale price or settle price as of the close of such exchanges. Swap agreements and other derivatives are generally valued daily based upon quotations from market makers or by a pricing service in accordance with the Valuation Procedures.

Shareholders should retain this Supplement for future reference.

PRSAI-MF-1125SUP

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STATEMENT OF ADDITIONAL INFORMATION

BlackRock New York Municipal Opportunities Fund

of BlackRock Multi-State Municipal Series Trust

100 Bellevue Parkway, Wilmington, Delaware 19809 • Phone No. (800) 441-7762

This Statement of Additional Information of BlackRock New York Municipal Opportunities Fund (the “Fund”), a series of BlackRock Multi-State Municipal Series Trust (the “Trust”) is not a prospectus and should be read in conjunction with the Prospectuses of the Fund, dated October 28, 2025, as they may be amended or supplemented from time to time (each, a “Prospectus”) which have been filed with the Securities and Exchange Commission (the “Commission” or the “SEC”) and can be obtained, without charge, by calling (800) 441-7762 or by writing to the Fund at the above address. The Fund’s Prospectuses are incorporated by reference into this Statement of Additional Information, and Part I of this Statement of Additional Information and the portions of Part II of this Statement of Additional Information that relate to the Fund have been incorporated by reference into the Fund’s Prospectuses. The portions of Part II of this Statement of Additional Information that do not relate to the Fund do not form a part of the Fund’s Statement of Additional Information, have not been incorporated by reference into the Fund’s Prospectuses and should not be relied upon by investors in the Fund. The audited financial statements of the Fund are incorporated into this Statement of Additional Information by reference to the Fund’s Annual Financial Statements and Additional Information for the fiscal year ended June 30, 2025, as filed with the SEC on Form N-CSR (the “2025 Annual Financial Statements”). You may request a copy of the 2025 Annual Financial Statements at no charge by calling (800) 441-7762 between 8:00 a.m. and 6:00 p.m. Eastern time on any business day.

References to the Investment Company Act of 1940, as amended (the “Investment Company Act” or the “1940 Act”), or other applicable law, will include any rules promulgated thereunder and any guidance, interpretations or modifications by the Commission, Commission staff or other authority with appropriate jurisdiction, including court interpretations, and exemptive, no-action or other relief or permission from the Commission, Commission staff or other authority.

Class Ticker Symbol Investor A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M ENKX Investor A1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MDNKX Investor C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MFNKX Institutional Shares ........................................................................ M ANKX Class K Shares ............................................................................ M KNKX

BlackRock Advisors, LLC — Manager

BlackRock Investments, LLC — Distributor

The date of this Statement of Additional Information is October 28, 2025.

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TABLE OF CONTENTS

Page PART I Investment Objective and Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-1 Investment Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-7 Information on Trustees and Officers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-9 Management, Advisory and Other Service Arrangements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-20 Information on Sales Charges and Distribution Related Expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-24 Computation of Offering Price Per Share . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-25 Portfolio Transactions and Brokerage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-26 Additional Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-27 Financial Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-29

PART II Investment Risks and Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-1 Management and Other Service Arrangements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-79 Selective Disclosure of Portfolio Holdings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-81 Purchase of Shares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-95 Redemption of Shares . . ........................................................................... I I-112 Shareholder Services . . ............................................................................ I I-115 Pricing of Shares .................................................................................. I I-119 Portfolio Transactions and Brokerage . . .............................................................. I I-121 Dividends and Taxes . . ............................................................................. I I-125 Performance Data ................................................................................. I I-132 Proxy Voting Policies and Procedures. . . . . . . . . . . . . . . . . . . . . . ........................................... I I-134 General Information ............................................................................... I I-135 Appendix A — Description of Bond Ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1 Appendix B — Proxy Voting Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1 Appendix C — Special Considerations Regarding Investment in New York Municipal Securities . . . . . . . . . . . . . . . C-1

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PART I: INFORMATION ABOUT THE FUND

Part I of this Statement of Additional Information (“SAI”) sets forth information about BlackRock New York Municipal Opportunities Fund (the “Fund”), a series of BlackRock Multi-State Municipal Series Trust (the “Trust”). It includes information about the Trust’s Board of Trustees (the “Board” or the “Board of Trustees”), the management services provided to and the management fees paid by the Fund and information about other fees applicable to and services provided to the Fund. This Part I of this SAI should be read in conjunction with the Fund’s Prospectuses and those portions of Part II of this SAI that pertain to the Fund.

I. Investment Objective and Policies

In implementing the Fund’s investment strategy, from time to time, BlackRock Advisors, LLC (“BlackRock” or the “Manager”), the Fund’s investment manager, may consider and employ techniques and strategies designed to minimize and defer the U.S. federal income taxes which may be incurred by shareholders in connection with their investment in the Fund.

Set forth below is a listing of some of the types of investments and investment strategies that the Fund may use, and the risks and considerations associated with those investments and investment strategies. Please see Part II of this SAI for further information on these investments and investment strategies. Information contained in Part II about the risks and considerations associated with investments and/or investment strategies applies only to the extent the Fund makes each type of investment or uses each investment strategy. Also set forth below is a listing of the proxy voting policy and related guidelines applicable to the Fund. Please see “Proxy Voting Policies and Procedures” section in Part II of this SAI for further information about these policies. A copy of each policy is included in Appendix B.

Information that does not apply to the Fund does not form a part of the Fund’s SAI and should not be relied on by investors in the Fund. Only information that is clearly identified as applicable to the Fund is considered to form a part of the Fund’s SAI.

Hybrid Instruments Without Principal Protection Limitations on Leverage Counterparty Risk Convertible Securities Corporate Loans Direct Lending

Credit Linked Securities Cyber Security Issues X Debt Securities X Floating and Variable Rate Securities X Inflation-Indexed Bonds X

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BlackRock New York Municipal Opportunities Fund Investment Grade Debt Obligations X High Yield Investments (“Junk Bonds”) X Mezzanine Investments

Pay-in-kind Bonds X Supranational Entities Depositary Receipts (ADRs, EDRs and GDRs) Derivatives X Hedging X Speculation X Risk Factors in Derivatives X

Correlation Risk X Counterparty Risk X Credit Risk X Currency Risk Illiquidity Risk X Leverage Risk X

Market Risk X Valuation Risk X Volatility Risk X Futures X Swap Agreements X Credit Default Swaps and Similar Instruments X Interest Rate Swaps, Floors and Caps X

Total Return Swaps X Options X Options on Securities and Securities Indices X Call Options X Put Options X Options on Government National Mortgage Association (“GNMA”) Certificates Options on Swaps (“Swaptions”) X FLEX Options Foreign Exchange Transactions Spot Transactions and FX Forwards Currency Futures

Currency Options Currency Swaps Distressed Securities X Environmental, Social and Governance (“ESG”) Integration X Equity Securities Real Estate-Related Securities Securities of Smaller or Emerging Growth Companies

Tracking Stocks

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BlackRock New York Municipal Opportunities Fund Exchange-Traded Notes (“ETNs”) Foreign Investments Foreign Investment Risks

Foreign Market Risk Foreign Economy Risk Currency Risk and Exchange Risk Governmental Supervision and Regulation/Accounting Standards Certain Risks of Holding Fund Assets Outside the United States Publicly Available Information Settlement Risk

Sovereign Debt Withholding Tax Reclaims Risk U.S. Economic Trading Partners Risk Funding Agreements Guarantees X Illiquid Investments X

Index Funds Cash Flows; Expenses Tracking Error Risk S&P 500 Index Russell Indexes MSCI Indexes FTSE Indexes

Bloomberg Indexes ICE BofA Indexes Indexed and Inverse Securities X Inflation Risk X Initial Public Offering (“IPO”) Risk Investment in Emerging Markets

Brady Bonds China Investments Risk Investment in Other Investment Companies X Exchange-Traded Funds X Issuer Insolvency Risk Lease Obligations X Life Settlement Investments

Liquidity Risk Management X Master Limited Partnerships Merger Transaction Risk Money Market Obligations of Domestic Banks, Foreign Banks and Foreign Branches of U.S. Banks X Money Market Securities X

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BlackRock New York Municipal Opportunities Fund Mortgage-Related Securities X Mortgage-Backed Securities X Collateralized Mortgage Obligations (“CMOs”) X Adjustable Rate Mortgage Securities X

CMO Residuals Stripped Mortgage-Backed Securities Tiered Index Bonds TBA Commitments X Mortgage Dollar Rolls Net Interest Margin (NIM) Securities

Municipal Investments X Risk Factors and Special Considerations Relating to Municipal Bonds X Description of Municipal Bonds X General Obligation Bonds X Revenue Bonds X Private Activity Bonds (“PABs”) X Moral Obligation Bonds X Municipal Notes X Municipal Commercial Paper X Municipal Lease Obligations X Tender Option Bonds X Yields X Variable Rate Demand Obligations (“VRDOs”) X

Transactions in Financial Futures Contracts on Municipal Indexes X Call Rights X Municipal Interest Rate Swap Transactions X Insured Municipal Bonds X Build America Bonds X Tax-Exempt Municipal Investments X

Participation Notes Portfolio Turnover Rates X Preferred Stock X Tax-Exempt Preferred Shares X Trust Preferred Securities X Proxy Voting Policies Open-End Active and Fixed Income Index Fund Proxy Voting Policy X BlackRock Active Investment Stewardship Climate and Decarbonization Stewardship Guidelines Index Equity Fund Proxy Voting Policy BlackRock Investment Stewardship Climate and Decarbonization Stewardship Guidelines Real Estate Investment Trusts (“REITs”) Recent Market Events X

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BlackRock New York Municipal Opportunities Fund Reference Rate Replacement Risk X Repurchase Agreements and Purchase and Sale Contracts X Restricted Securities X

Reverse Repurchase Agreements X Rights Offerings and Warrants to Purchase Rule 144A Securities X Securities Lending X Short Sales See note 1 below Special Purpose Acquisition Companies Standby Commitment Agreements X

Stripped Securities Structured Notes Taxability Risk X Temporary Defensive Measures X U.S. Government Obligations X U.S. Treasury Obligations X U.S. Treasury Rolls

Utility Industries X When-Issued Securities, Delayed Delivery Securities and Forward Commitments X Yields and Ratings X Zero Coupon Securities X

1 The Fund may only make short sales “against-the-box.”

The investment objective of the Fund is to provide shareholders with income that is exempt from Federal income tax and New York State and New York City personal income taxes. The investment objective of the Fund is a fundamental policy and may not be changed without a vote of a majority of the outstanding shares of the Fund. There can be no assurance that the investment objective of the Fund will be achieved. The Fund seeks to achieve its objective by investing primarily in a portfolio of investment grade obligations issued by or on behalf of New York State, its political subdivisions, agencies and instrumentalities and obligations of other qualifying issuers, such as issuers located in Puerto Rico, the U.S. Virgin Islands and Guam, that pay interest that is, in the opinion of bond counsel to the issuer, excludable from gross income for Federal income tax purposes and exempt from New York State and New York City personal income taxes. Obligations that pay interest excludable from gross income for Federal income tax purposes are referred to herein as “Municipal Bonds,” and obligations that pay interest excludable from gross income for Federal income tax purposes and exempt from New York State and New York City personal income taxes are referred to as “New York Municipal Bonds.” Unless otherwise indicated, references to Municipal Bonds shall be deemed to include New York Municipal Bonds. The Fund is classified as a diversified open end investment company under the Investment Company Act.

Under normal circumstances, except when acceptable securities are unavailable as determined by BlackRock or for temporary defensive purposes, the Fund will invest at least 80% of its assets in investment grade New York Municipal Bonds. For this purpose, net assets include any borrowings for investment purposes. This policy is a fundamental policy of the Fund and may not be changed without approval of a majority of the Fund’s outstanding shares.

Under normal circumstances, at least 80% of the Fund’s assets will be invested in Municipal Bonds that are commonly referred to as “investment grade” securities, which are obligations rated at the time of purchase within the four highest quality ratings as determined by Moody’s Investors Service, Inc. (“Moody’s”) (currently Aaa, Aa, A and Baa), S&P Global Ratings (“S&P”), a division of S&P Global Inc., (currently AAA, AA, A and BBB) or Fitch Ratings (“Fitch”) (currently AAA, AA, A and BBB). If unrated, such securities will possess creditworthiness comparable, in the

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opinion of the Manager, to other obligations in which the Fund may invest. Securities rated in the lowest investment grade rating category may be considered to have speculative characteristics.

The Fund may invest up to 20% of its assets in Municipal Bonds that are rated below Baa by Moody’s or below BBB by S&P or Fitch or that, in the Manager’s judgment, possess similar credit characteristics. Such securities, sometimes referred to as “high yield” or “junk” bonds, are predominantly speculative with respect to the capacity to pay interest and repay principal in accordance with the terms of the security and generally involve a greater volatility of price than securities in higher rating categories. The Fund may invest in debt securities that at the time of purchase are in default or that the Manager believes will be in default. Split rated bonds will be considered to have the higher credit rating. Split rated bonds are bonds that receive different ratings from two or more rating agencies.

The Fund may invest in bonds of any maturity. Under normal circumstances, the Fund seeks to maintain an average portfolio duration of zero to ten years. Duration is a mathematical calculation of the average life of a bond (or bonds in a bond fund) that serves as a useful measure of its price risk. Each year of duration represents an expected 1% change in the net asset value of a bond fund for every 1% immediate change in interest rates. For example, if a bond fund has an average duration of ten years, its net asset value would be expected to fall about 10% when interest rates rise by one percentage point, assuming all other factors remain equal. Conversely, the bond fund’s net asset value would be expected to rise about 10% when interest rates fall by one percentage point, assuming all other factors remain equal. Duration, which measures price sensitivity to interest rate changes, is not necessarily equal to average maturity. The Fund’s average weighted duration may vary significantly from time to time depending on the views of Fund management.

For temporary periods or to provide liquidity, the Fund has the authority to invest as much as 35% of its assets in tax-exempt or taxable money market obligations with a maturity of one year or less (such short-term obligations being referred to herein as “Temporary Investments”), except that taxable Temporary Investments shall not generally exceed 20% of the Fund’s net assets.

Certain instruments in which the Fund may invest may be characterized as derivative instruments. The Fund is authorized to engage in transactions in derivatives, such as options or futures on a security or an index of securities (including, but not limited to, interest rate futures contracts, financial futures contracts and options thereon), for hedging purposes or to seek to enhance returns. The Fund may seek to actively manage interest rate risk through hedging strategies, and may seek to generate yield through liquidity, structure, credit, interest rate and duration strategies. The Fund is also authorized to invest in indexed and inverse floating rate obligations and swap agreements, including credit default swap agreements. The Fund may also invest in variable rate demand obligations (“VRDOs”) and VRDOs in the form of participation interests in variable rate tax-exempt obligations held by a financial institution (“Participating VRDOs”). The Fund’s hedging strategies are not fundamental policies and may be modified by the Trustees of the Trust without the approval of the Fund’s shareholders.

Certain Municipal Bonds may be entitled to the benefits of letters of credit or similar credit enhancements issued by financial institutions. In such instances, the Trustees and the Manager will take into account in assessing the quality of such bonds not only the creditworthiness of the issuer of such bonds but also the creditworthiness of the financial institution that provides the credit enhancement.

The Fund may purchase Municipal Bonds issued by other states, their agencies and instrumentalities, the interest income on which is, in the opinion of bond counsel to the issuer, excludable from gross income for Federal income tax purposes, but not exempt from New York State and New York City personal income taxes. The Fund also may invest in securities not issued by or on behalf of a state or territory or by an agency or instrumentality thereof that are believed to pay interest that is excludable from gross income for Federal income tax purposes (“Non Municipal Tax-Exempt Securities”). Non-Municipal Tax-Exempt Securities could include trust certificates or other instruments evidencing interest in one or more municipal securities. Non-Municipal Tax-Exempt Securities also may include securities issued by other investment companies that invest in New York Municipal Bonds or Municipal Bonds, to the extent such investments are permitted by the Investment Company Act. Certain Non-Municipal Tax Exempt Securities may be characterized as derivative instruments. For purposes of the Fund’s investment objective and policies, Non-Municipal Tax-Exempt Securities that pay interest that is excludable from gross income for Federal income tax purposes will be considered “Municipal Bonds” and Non-Municipal Tax-Exempt Securities that pay interest that is excludable from gross income for Federal income tax purposes and exempt from New York State and New York City personal income taxes will be considered “New York Municipal Bonds.” Interest received on certain otherwise tax-exempt securities that are classified as “private activity bonds” (in general, bonds that benefit non-governmental entities) may be subject to a Federal alternative minimum tax. The percentage of the Fund’s total assets invested in “private activity bonds” will vary during the year. Federal tax laws limit the types and volume of bonds the interest on

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which qualifies for a Federal income tax exemption. These laws and legislation that may be enacted in the future may affect the availability of Municipal Bonds for investment by the Fund.

Description of Temporary Investments — The Fund may invest in short-term tax-exempt and taxable securities subject to the limitations set forth above and in the Prospectus under “How the Fund Invests.” The tax-exempt money market securities may include municipal notes, municipal commercial paper, municipal bonds with a remaining maturity of less than one year, variable rate demand notes and participations therein. Municipal notes include tax anticipation notes, bond anticipation notes, revenue anticipation notes and grant anticipation notes. Anticipation notes are sold as interim financing in anticipation of tax collection, bond sales, government grants or revenue receipts. Municipal commercial paper refers to short-term unsecured promissory notes generally issued to finance short-term credit needs. The taxable money market securities in which the Fund may invest as Temporary Investments consist of U.S. Government securities, U.S. Government agency securities, domestic bank or savings institution certificates of deposit and bankers’ acceptances, short-term corporate debt securities such as commercial paper and repurchase agreements. These Temporary Investments must have a stated maturity not in excess of one year from date of purchase. The Fund may not invest in any security issued by a commercial bank or a savings institution unless the bank or institution is organized and operating in the United States, has total assets of at least $1 billion and is a member of the Federal Deposit Insurance Corporation (“FDIC”), except that up to 10% of total assets may be invested in certificates of deposit of smaller institutions if such certificates are fully insured by the FDIC.

Investments in Puerto Rico Municipal Securities. The Fund may invest in municipal securities issued in Puerto Rico, subject to market, economic and political conditions. Like many other U.S. states and municipalities, Puerto Rico experienced a significant downturn during the last recession. Puerto Rico continues to face significant fiscal challenges, including persistent government deficits, underfunded government retirement systems, sizable debt service obligations and a high unemployment rate. Puerto Rico has been defaulting on various debt payments since 2015. In 2016, President Obama signed the Puerto Rico Oversight, Management and Economic Stability Act (“PROMESA”) into law. PROMESA established a seven-member federal oversight board and a bankruptcy restructuring mechanism for Puerto Rico to adjust its debts in the event voluntary agreements with creditors cannot be reached. On August 31, 2016, President Obama appointed the seven-member board from various lists provided by congressional leadership. Several of Puerto Rico’s debt-issuing entities have been placed into the PROMESA bankruptcy, restructuring mechanism by the oversight board following failed voluntary negotiation talks. A restructuring of some or all of Puerto Rico’s debt, or a further decline in market prices of Puerto Rico debt obligations, may affect a Fund investment in these securities. If the economic situation in Puerto Rico persists or worsens, the volatility, credit quality and performance of the Fund could be adversely affected.

Regulation Regarding Derivatives. The Commodity Futures Trading Commission (“CFTC”) subjects advisers to registered investment companies to regulation by the CFTC if a fund that is advised by the investment adviser either (i) invests, directly or indirectly, more than a prescribed level of its liquidation value in CFTC-regulated futures, options and swaps (“CFTC Derivatives”), or (ii) markets itself as providing investment exposure to such instruments. To the extent the Fund uses CFTC Derivatives, it intends to do so below such prescribed levels and will not market itself as a “commodity pool” or a vehicle for trading such instruments. Accordingly, BlackRock has claimed an exclusion from the definition of the term “commodity pool operator” under the Commodity Exchange Act (“CEA”) pursuant to Rule 4.5 under the CEA. BlackRock is not, therefore, subject to registration or regulation as a “commodity pool operator” under the CEA in respect of the Fund.

II. Investment Restrictions

The Trust, on behalf of the Fund, has adopted restrictions and policies relating to the investment of its assets and its activities. Certain of the restrictions are fundamental policies of the Trust and may not be changed without the approval of the holders of a majority of the Fund’s outstanding voting securities (which for this purpose and under the Investment Company Act, means the lesser of (i) 67% of the shares present at a meeting at which more than 50% of the outstanding shares are represented or (ii) more than 50% of the outstanding shares). The Trust has also adopted certain non-fundamental investment restrictions, which may be changed by the Board of Trustees without shareholder approval.

Set forth below are the Trust’s fundamental and non-fundamental investment restrictions. Unless otherwise provided, all references below to the assets of the Fund are in terms of current market value.

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Under the Trust’s fundamental investment restrictions, the Fund may not:

(1) Make any investment inconsistent with the Fund’s classification as a diversified company under the Investment Company Act.

(2) Invest more than 25% of its assets, taken at market value at the time of each investment, in the securities of issuers in any particular industry (excluding the U.S. Government and its agencies and instrumentalities). For purposes of this restriction, states, municipalities and their political subdivisions are not considered part of any industry.

(3) Make investments for the purpose of exercising control or management.

(4) Purchase or sell real estate, except that, to the extent permitted by applicable law, the Fund may invest in securities directly or indirectly secured by real estate or interests therein or issued by companies that invest in real estate or interests therein.

(5) Make loans to other persons, except that the acquisition of bonds, debentures or other corporate debt securities and investment in government obligations, commercial paper, pass-through instruments, certificates of deposit, bankers’ acceptances, repurchase agreements or any similar instruments shall not be deemed to be the making of a loan, and except further that the Fund may lend its portfolio securities, provided that the lending of portfolio securities may be made only in accordance with applicable law and the guidelines set forth in the Fund’s Prospectus and Statement of Additional Information, as they may be amended from time to time.

(6) Issue senior securities to the extent such issuance would violate applicable law.

(7) Borrow money, except that (i) the Fund may borrow from banks (as defined in the Investment Company Act) in amounts up to 33 1⁄ 1⁄3 ⁄3 % of its total assets (including the amount borrowed), (ii) the Fund may, to the extent permitted by applicable law, borrow up to an additional 5% of its total assets for temporary purposes, (iii) the Fund may obtain such short-term credit as may be necessary for the clearance of purchases and sales of portfolio securities and (iv) the Fund may purchase securities on margin to the extent permitted by applicable law. The Fund may not pledge its assets other than to secure such borrowings or, to the extent permitted by the Fund’s investment policies as set forth in its Prospectus and Statement of Additional Information, as they may be amended from time to time, in connection with hedging transactions, short sales, when-issued and forward commitment transactions and similar investment strategies.

(8) Underwrite securities of other issuers, except insofar as the Fund technically may be deemed an underwriter under the Securities Act of 1933, as amended (“Securities Act”) in selling portfolio securities.

(9) Purchase or sell commodities or contracts on commodities, except to the extent that the Fund may do so in accordance with applicable law and the Fund’s Prospectus and Statement of Additional Information, as they may be amended from time to time, and without registering as a commodity pool operator under the Commodity Exchange Act.

Under the Trust’s non-fundamental investment restrictions, the Fund may not:

(a) Purchase securities of other investment companies, except to the extent permitted by the Investment Company Act. As a matter of policy, however, the Fund will not purchase shares of any registered open-end investment company or registered unit investment trust, in reliance on Section 12(d)(1)(F) or (G) (the “fund of funds” provisions) of the Investment Company Act, at any time the Fund has knowledge that its shares are purchased by another investment company investor in reliance on the provisions of subparagraph (G) of Section 12(d)(1).

(b) Make short sales of securities or maintain a short position, except to the extent permitted by the Fund’s Prospectus and Statement of Additional Information, as amended from time to time, and applicable law.

Notations Regarding the Fund’s Fundamental Investment Restrictions

The following notations are not considered to be part of the Fund’s fundamental investment restrictions and are subject to change without shareholder approval.

For purposes of applying the fundamental policy relating to concentration set forth in (2) above, municipal securities issued to finance a specific project, such as industrial development bonds and private activity bonds, are not excluded from the Fund’s 25% industry concentration limit, as they are considered to be in the industry of the relevant project. There also will be no limit on investment in issuers domiciled in a single jurisdiction or country. Finance companies will be considered to be in the industries of their parents if their activities are primarily related to

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financing the activities of the parents. Each foreign government will be considered to be a member of a separate industry. With respect to the Fund’s industry classifications, the Fund currently utilizes any one or more of the industry sub-classifications used by one or more widely recognized market indexes or rating group indexes, and/or as defined by Fund management. The policy also will be interpreted to give broad authority to the Fund as to how to classify issuers within or among industries.

With respect to the fundamental policy relating to borrowing set forth in (7) above, the policy does not restrict the Fund from obtaining leverage through tender option bond trust transactions, provided that the Fund either (i) complies with the 300% asset coverage ratio with respect to such transactions and any other borrowings in the aggregate, or (ii) treats such transactions as Derivatives Transactions under Rule 18f-4. See “Investment Risks and Considerations — Derivatives — Regulation of Derivatives — Rule 18f-4 under the Investment Company Act” below.

With respect to the fundamental policy relating to underwriting set forth in (8) above, the Investment Company Act does not prohibit the Fund from engaging in the underwriting business or from underwriting the securities of other issuers; in fact, in the case of diversified funds, the Investment Company Act permits the Fund to have underwriting commitments of up to 25% of its assets under certain circumstances. Those circumstances currently are that the amount of the Fund’s underwriting commitments, when added to the value of the Fund’s investments in issuers where the Fund owns more than 10% of the outstanding voting securities of those issuers, cannot exceed the 25% cap. A fund engaging in transactions involving the acquisition or disposition of portfolio securities may be considered to be an underwriter under the Securities Act. Although it is not believed that the application of the Securities Act provisions described above would cause the Fund to be engaged in the business of underwriting, the policy in (8) above will be interpreted not to prevent the Fund from engaging in transactions involving the acquisition or disposition of portfolio securities, regardless of whether the Fund may be considered to be an underwriter under the Securities Act or is otherwise engaged in the underwriting business to the extent permitted by applicable law.

Unless otherwise indicated, all limitations under the Fund’s fundamental or non-fundamental investment restrictions apply only at the time that a transaction is undertaken. Any change in the percentage of the Fund’s assets invested in certain securities or other instruments resulting from market fluctuations or other changes in the Fund’s total assets will not require the Fund to dispose of an investment until BlackRock determines that it is practicable to sell or close out the investment without undue market or tax consequences.

III. Information on Trustees and Officers

The Board of Trustees (the “Board”) of the Trust consists of ten individuals (each a “Trustee”), eight of whom are not “interested persons” of the Trust as defined in the Investment Company Act (the “Independent Trustees”). The registered investment companies advised by the Manager or its affiliates (the “BlackRock-advised Funds”) are organized into the BlackRock Multi-Asset Complex, the BlackRock Fixed-Income Complex, and the iShares Complex (each, a “BlackRock Fund Complex”). The Fund is included in the BlackRock Fund Complex referred to as the BlackRock Fixed-Income Complex. The Trustees also oversee as board members the operations of the other open-end and closed-end registered investment companies included in the BlackRock Fixed-Income Complex.

The Board has overall responsibility for the oversight of the Trust and the Fund. The Chair of the Board and the Chief Executive Officer are different people. Not only is the Chair of the Board an Independent Trustee, but also the Chair of each Board committee (each, a “Committee”) is an Independent Trustee. The Board has six standing Committees: an Audit Committee, a Governance and Nominating Committee, a Compliance Committee, a Performance Oversight Committee, a Securities Lending Committee and an Executive Committee. The role of the Chair of the Board is to preside over all meetings of the Board and to act as a liaison with service providers, officers, attorneys, and other Trustees between meetings. The Chair of each Committee performs a similar role with respect to the Committee. The Chair of the Board or a Committee may also perform such other functions as may be delegated by the Board or the Committee from time to time. The Independent Trustees meet regularly outside the presence of the Fund’s management, in executive sessions or with other service providers to the Fund. The Board has regular meetings five times a year, including a meeting to consider the approval of the Fund’s investment management agreement, and, if necessary, may hold special meetings before its next regular meeting. The Audit Committee, the Governance and Nominating Committee, the Compliance Committee, the Performance Oversight Committee and the Securities Lending Committee each meets regularly and the Executive Committee meets on an ad hoc basis to conduct the oversight functions delegated to that Committee by the Board and reports its findings to the Board. The Board and each standing Committee conduct annual assessments of their oversight function and structure. The Board has determined that the Board’s leadership structure is appropriate because it allows the Board to exercise independent judgment over management and to allocate areas of responsibility among Committees and the Board to enhance oversight.

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The Board decided to separate the roles of Chief Executive Officer from the Chair because it believes that having an independent Chair:

• increases the independent oversight of the Fund and enhances the Board’s objective evaluation of the Chief Executive Officer;

• allows the Chief Executive Officer to focus on the Fund’s operations instead of Board administration;

• provides greater opportunities for direct and independent communication between shareholders and the Board; and

• provides an independent spokesman for the Fund.

The Board has engaged the Manager to manage the Fund on a day-to-day basis. The Board is responsible for overseeing the Manager, other service providers, the operations of the Fund and associated risks in accordance with the provisions of the Investment Company Act, state law, other applicable laws, the Fund’s charter, and the Fund’s investment objective and strategies. The Board reviews, on an ongoing basis, the Fund’s performance, operations, and investment strategies and techniques. The Board also conducts reviews of the Manager and its role in running the operations of the Fund.

Day-to-day risk management with respect to the Fund is the responsibility of the Manager, sub-advisers or other service providers (depending on the nature of the risk), subject to the supervision of the Manager. The Fund is subject to a number of risks, including investment, compliance, operational and valuation risks, among others. While there are a number of risk management functions performed by the Manager, sub-advisers or other service providers, as applicable, it is not possible to eliminate all of the risks applicable to the Fund. Risk oversight is part of the Board’s general oversight of the Fund and is addressed as part of various Board and Committee activities. The Board, directly or through Committees, also reviews reports from, among others, management, the independent registered public accounting firm for the Fund, the Manager, sub-advisers and internal auditors for the Manager or its affiliates, as appropriate, regarding risks faced by the Fund and management’s or the service provider’s risk functions. The Committee system facilitates the timely and efficient consideration of matters by the Trustees and facilitates effective oversight of compliance with legal and regulatory requirements and of the Fund’s activities and associated risks. The Board has approved the appointment of a Chief Compliance Officer (“CCO”), who oversees the implementation and testing of the Fund’s compliance program and reports regularly to the Board regarding compliance matters for the Fund and its service providers. The Independent Trustees have engaged independent legal counsel to assist them in performing their oversight responsibilities.

Audit Committee. The Board has a standing Audit Committee composed of Catherine A. Lynch (Chair), Lorenzo A. Flores, J. Phillip Holloman and Arthur P. Steinmetz, all of whom are Independent Trustees. The principal responsibilities of the Audit Committee are to assist the Board in fulfilling its oversight responsibilities relating to the accounting and financial reporting policies and practices of the Fund. The Audit Committee’s responsibilities include, without limitation: (i) approving, and recommending to the full Board for approval, the selection, retention, termination and compensation of the Fund’s independent registered public accounting firm (the “Independent Registered Public Accounting Firm”) and evaluating the independence and objectivity of the Independent Registered Public Accounting Firm; (ii) approving all audit engagement terms and fees for the Fund; (iii) reviewing the conduct and results of each audit; (iv) reviewing any issues raised by the Fund’s Independent Registered Public Accounting Firm or management regarding the accounting or financial reporting policies and practices of the Fund, its internal controls, and, as appropriate, the internal controls of certain service providers and management’s response to any such issues; (v) reviewing and discussing the Fund’s audited and unaudited financial statements and disclosure in the Fund’s shareholder reports relating to the Fund’s performance; (vi) assisting the Board’s responsibilities with respect to the internal controls of the Fund and its service providers with respect to accounting and financial matters; and (vii) resolving any disagreements between the Fund’s management and the Fund’s Independent Registered Public Accounting Firm regarding financial reporting. The Board has adopted a written charter for the Board’s Audit Committee. During the fiscal year ended June 30, 2025, the Audit Committee met nine times.

Governance and Nominating Committee. The Board has a standing Governance and Nominating Committee composed of W. Carl Kester (Chair), Cynthia L. Egan, J. Phillip Holloman, R. Glenn Hubbard and Catherine A. Lynch, all of whom are Independent Trustees. The principal responsibilities of the Governance and Nominating Committee are: (i) identifying individuals qualified to serve as Independent Trustees and recommending Board nominees that are not “interested persons” of the Fund (as defined in the Investment Company Act) for election by shareholders or appointment by the Board; (ii) advising the Board with respect to Board composition, procedures and Committees of the Board (other than the Audit Committee); (iii) overseeing periodic self-assessments of the Board and Committees of the Board (other than the Audit Committee); (iv) reviewing and making recommendations in respect to Independent Trustee compensation; (v) monitoring corporate governance matters and making recommendations in respect thereof

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to the Board; (vi) acting as the administrative committee with respect to Board policies and procedures, committee policies and procedures (other than the Audit Committee) and codes of ethics as they relate to the Independent Trustees; and (vii) reviewing and making recommendations to the Board in respect of Fund share ownership by the Independent Trustees. The Board has adopted a written charter for the Board’s Governance and Nominating Committee. During the fiscal year ended June 30, 2025, the Governance and Nominating Committee met four times.

The Governance and Nominating Committee of the Board seeks to identify individuals to serve on the Board who have a diverse range of viewpoints, qualifications, experiences, backgrounds and skill sets so that the Board will be better suited to fulfill its responsibility of overseeing the Fund’s activities. In so doing, the Governance and Nominating Committee reviews the size of the Board, the ages of the current Trustees and their tenure on the Board, and the skills, background and experiences of the Trustees in light of the issues facing the Fund in determining whether one or more new trustees should be added to the Board. The Board as a group strives to achieve diversity in terms of gender, race and geographic location. The Governance and Nominating Committee believes that the Trustees as a group possess the array of skills, experiences and backgrounds necessary to guide the Fund. The Trustees’ biographies included herein highlight the diversity and breadth of skills, qualifications and expertise that the Trustees bring to the Fund.

The Governance and Nominating Committee may consider nominations for Trustees made by the Fund’s shareholders as it deems appropriate. Under the Trust’s Bylaws, shareholders must follow certain procedures to nominate a person for election as a Trustee at a shareholder meeting at which Trustees are to be elected. Under these advance notice procedures, shareholders must submit the proposed nominee by delivering a notice to the Secretary of the Fund at its principal executive offices no later than the close of business on the fifth (5th) day following the day on which notice of the date of the meeting was mailed or public disclosure of the date of the meeting was made, whichever first occurs.

The Trust’s Bylaws provide that notice of a proposed nomination must include certain information about the shareholder and the nominee, as well as certain other information, including a written consent of the proposed nominee to serve if elected. Reference is made to the Trust’s Bylaws for more details.

Compliance Committee. The Board has a Compliance Committee composed of Cynthia L. Egan (Chair), Stayce D. Harris, R. Glenn Hubbard and W. Carl Kester, all of whom are Independent Trustees. The Compliance Committee’s purpose is to assist the Board in fulfilling its responsibility with respect to the oversight of regulatory and fiduciary compliance matters involving the Fund, the fund-related activities of BlackRock, and any sub-advisers and the Fund’s other third party service providers. The Compliance Committee’s responsibilities include, without limitation: (i) overseeing the compliance policies and procedures of the Fund and its service providers and recommending changes or additions to such policies and procedures; (ii) reviewing information on and, where appropriate, recommending policies concerning the Fund’s compliance with applicable law; (iii) reviewing information on any significant correspondence with or other actions by regulators or governmental agencies with respect to the Fund and any employee complaints or published reports that raise concerns regarding compliance matters; and (iv) reviewing reports from, overseeing the annual performance review of, and making certain recommendations in respect of, the Fund’s CCO, including, without limitation, determining the amount and structure of the CCO’s compensation. The Board has adopted a written charter for the Board’s Compliance Committee. During the fiscal year ended June 30, 2025, the Compliance Committee met four times.

Per formance Oversight Committee. The Board has a Performance Oversight Committee composed of Arthur P. Steinmetz (Chair), Cynthia L. Egan, Lorenzo A. Flores, Stayce D. Harris, J. Phillip Holloman, R. Glenn Hubbard, W. Carl Kester and Catherine A. Lynch, all of whom are Independent Trustees. The Performance Oversight Committee’s purpose is to assist the Board in fulfilling its responsibility to oversee the Fund’s investment performance relative to the Fund’s investment objective, policies and practices. The Performance Oversight Committee’s responsibilities include, without limitation: (i) reviewing the Fund’s investment objective, policies and practices; (ii) recommending to the Board any required action in respect of changes in fundamental and non-fundamental investment restrictions; (iii) reviewing information on appropriate benchmarks and competitive universes; (iv) reviewing the Fund’s investment performance relative to such benchmarks; (v) reviewing information on unusual or exceptional investment matters; (vi) reviewing whether the Fund has complied with its investment policies and restrictions; and (vii) overseeing policies, procedures and controls regarding valuation of the Fund’s investments. The Board has adopted a written charter for the Board’s Performance Oversight Committee. During the fiscal year ended June 30, 2025, the Performance Oversight Committee met four times.

Securities Lending Committee. The Board has a Securities Lending Committee composed of Catherine A. Lynch (Chair), Cynthia L. Egan and W. Carl Kester, all of whom are Independent Trustees. The principal responsibilities of the Securities Lending Committee include, without limitation: (i) supporting, overseeing and organizing on behalf of

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the Board the process for oversight of the Fund’s securities lending activities; and (ii) providing a recommendation to the Board regarding the annual approval of the Fund’s Securities Lending Guidelines and the Fund’s agreement with the lending agent. The Board has adopted a written charter for the Board’s Securities Lending Committee. During fiscal year ended June 30, 2025, the Securities Lending Committee met two times.

Executive Committee. The Board has an Executive Committee composed of R. Glenn Hubbard (Chair) and W. Carl Kester, both of whom are Independent Trustees, and John M. Perlowski, who serves as an interested Trustee. The principal responsibilities of the Executive Committee include, without limitation: (i) acting on routine matters between meetings of the Board; (ii) acting on such matters as may require urgent action between meetings of the Board; and (iii) exercising such other authority as may from time to time be delegated to the Executive Committee by the Board. The Board has adopted a written charter for the Board’s Executive Committee. During the fiscal year ended June 30, 2025, the Executive Committee did not meet.

The Independent Trustees have adopted a statement of policy that describes the experiences, qualifications, skills and attributes that are necessary and desirable for potential Independent Trustee candidates (the “Statement of Policy”). The Board believes that each Independent Trustee satisfied, at the time he or she was initially elected or appointed a Trustee, and continues to satisfy, the standards contemplated by the Statement of Policy as well as the standards set forth in the Trust’s Bylaws. Furthermore, in determining that a particular Trustee was and continues to be qualified to serve as a Trustee, the Board has considered a variety of criteria, none of which, in isolation, was controlling. The Board believes that, collectively, the Trustees have balanced and diverse experiences, skills, attributes and qualifications, which allow the Board to operate effectively in governing the Fund and protecting the interests of shareholders. Among the attributes common to all Trustees is their ability to review critically, evaluate, question and discuss information provided to them, to interact effectively with the Manager, sub-advisers, other service providers, counsel and independent auditors, and to exercise effective business judgment in the performance of their duties as Trustees. Each Trustee’s ability to perform his or her duties effectively is evidenced by his or her educational background or professional training; business, consulting, public service or academic positions; experience from service as a board member of the Trust or the other funds in the BlackRock Fund Complexes (and any predecessor funds), other investment funds, public companies, or not-for-profit entities or other organizations; ongoing commitment and participation in Board and Committee meetings, as well as his or her leadership of standing and other committees throughout the years; or other relevant life experiences.

The table below discusses some of the experiences, qualifications and skills of each Trustee that support the conclusion that he or she should serve on the Board.

Trustees Experience, Qualifications and Skills Independent Trustees R. Glenn Hubbard R. Glenn Hubbard has served in numerous roles in the field of economics, including as the Chairman of the U.S. Council of Economic Advisers of the President of the United States. Dr. Hubbard has served as the Dean of Columbia Business School, as a member of the Columbia Faculty and as a Visiting Professor at the John F. Kennedy School of Government at Harvard University, the Harvard Business School and the University of Chicago. Dr. Hubbard’s experience as an adviser to the President of the United States adds a dimension of balance to the Fund’s governance and provides perspective on economic issues. Dr. Hubbard’s service on the boards of ADP and Metropolitan Life Insurance Company provides the Board with the benefit of his experience with the management practices of other financial companies. Dr. Hubbard’s long-standing service on the boards of directors/trustees of the closed-end funds in the BlackRock Fixed Income Complex also provides him with a specific understanding of the Fund, its operations, and the business and regulatory issues facing the Fund. Dr. Hubbard’s independence from the Fund and the Manager enhances his service as Chair of the Board, Chair of the Executive Committee and a member of the Governance and Nominating Committee, the Compliance Committee and the Performance Oversight Committee.

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Trustees Experience, Qualifications and Skills W. Carl Kester The Board benefits from W. Carl Kester’s experiences as a professor and author in finance, and his experience as the George Fisher Baker Jr. Professor of Business Administration at Harvard Business School and as Deputy Dean of Academic Affairs at Harvard Business School from 2006 through 2010 adds to the Board a wealth of expertise in corporate finance and corporate governance. Dr. Kester has authored and edited numerous books and research papers on both subject matters, including co-editing a leading volume of finance case studies used worldwide. Dr. Kester’s long-standing service on the boards of directors/trustees of the closed-end funds in the BlackRock Fixed-Income Complex also provides him with a specific understanding of the Fund, its operations, and the business and regulatory issues facing the Fund. Dr. Kester’s independence from the Fund and the Manager enhances his service as Vice Chair of the Board, Chair of the Governance and Nominating Committee and a member of the Executive Committee, the Compliance Committee, the Performance Oversight Committee and the Securities Lending Committee.

Cynthia L. Egan Cynthia L. Egan brings to the Board a broad and diverse knowledge of investment companies and the retirement industry as a result of her many years of experience as President, Retirement Plan Services, for T. Rowe Price Group, Inc. and her various senior operating officer positions at Fidelity Investments, including her service as Executive Vice President of FMR Co., President of Fidelity Institutional Services Company and President of the Fidelity Charitable Gift Fund. Ms. Egan has also served as an advisor to the U.S. Department of Treasury as an expert in domestic retirement security. Ms. Egan began her professional career at the Board of Governors of the Federal Reserve and the Federal Reserve Bank of New York. Ms. Egan is also a director of UNUM Corporation, a publicly traded insurance company providing personal risk reinsurance, and a director and Chair of the Board of The Hanover Group, a public property casualty insurance company. Ms. Egan is also the lead independent director and non-executive Vice Chair of the Board of Huntsman Corporation, a publicly traded manufacturer and marketer of chemical products. Ms. Egan’s independence from the Fund and the Manager enhances her service as Chair of the Compliance Committee and a member of the Governance and Nominating Committee, the Performance Oversight Committee and the Securities Lending Committee.

Lorenzo A. Flores The Board benefits from Lorenzo A. Flores’s many years of business, leadership and financial experience in his roles at various public and private companies. In particular, Mr. Flores’s service as Chief Financial Officer of Lattice Semiconductor Corporation, a semiconductor company that designs, develops, and markets programmable logic products and related software, Chief Financial Officer of Intel Foundry, a semiconductor manufacturing unit of Intel Corporation, Chief Financial Officer and Corporate Controller of Xilinx, Inc., a technology and semiconductor company that supplies programmable logic devices, and Vice Chairman of Kioxia, Inc., a manufacturer and supplier of flash memory and solid state drives, and his long experience in the technology industry allow him to provide insight to into financial, business and technology trends. Mr. Flores’s knowledge of financial and accounting matters qualifies him to serve as a member of the Audit Committee. Mr. Flores’s independence from the Fund and the Manager enhances his service as a member of the Performance Oversight Committee.

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Trustees Experience, Qualifications and Skills Stayce D. Harris The Board benefits from Stayce D. Harris’s leadership and governance experience gained during her extensive military career, including as a three-star Lieutenant General of the United States Air Force. In her most recent role, Ms. Harris reported to the Secretary and Chief of Staff of the Air Force on matters concerning Air Force effectiveness, efficiency and the military discipline of active duty, Air Force Reserve and Air National Guard forces. Ms. Harris’s experience on governance matters includes oversight of inspection policy and the inspection and evaluation system for all Air Force nuclear and conventional forces; oversight of Air Force counterintelligence operations and service on the Air Force Intelligence Oversight Panel; investigation of fraud, waste and abuse; and oversight of criminal investigations and complaints resolution programs. Ms. Harris is also a director of The Boeing Company. Ms. Harris’s independence from the Fund and the Manager enhances her service as a member of the Compliance Committee and the Performance Oversight Committee.

J. Phillip Holloman The Board benefits from J. Phillip Holloman’s many years of business and leadership experience as an executive, director and advisory board member of various public and private companies. In particular, Mr. Holloman’s service as Interim Executive Chairman, President and Chief Executive Officer of Vestis Corporation, President and Chief Operating Officer of Cintas Corporation allows him to provide insight into business trends and conditions. Mr. Holloman’s knowledge of financial and accounting matters qualifies him to serve as a member of the Audit Committee. Mr. Holloman’s independence from the Fund and the Manager enhances his service as a member of the Governance and Nominating Committee and the Performance Oversight Committee.

Catherine A. Lynch Catherine A. Lynch, who served as the Chief Executive Officer and Chief Investment Officer of the National Railroad Retirement Investment Trust, benefits the Board by providing business leadership and experience and a diverse knowledge of pensions and endowments. Ms. Lynch is also a trustee of PennyMac Mortgage Investment Trust, a specialty finance company that invests primarily in mortgage-related assets. Ms. Lynch also holds the designation of Chartered Financial Analyst. Ms. Lynch’s knowledge of financial and accounting matters qualifies her to serve as Chair of the Audit Committee. Ms. Lynch’s independence from the Fund and the Manager enhances her service as the Chair of the Securities Lending Committee, and a member of the Governance and Nominating Committee and the Performance Oversight Committee.

Arthur P. Steinmetz The Board benefits from Arthur P. Steinmetz’s many years of business and leadership experience as an executive, chairman and director of various companies in the financial industry. Mr. Steinmetz’s service as Chairman, Chief Executive Officer and President of the OppenheimerFunds, Inc. and as Trustee, President and Principal Executive Officer of certain OppenheimerFunds funds provides insight into the asset management industry. He has also served as a Director of ScotiaBank (U.S.). Mr. Steinmetz’s knowledge of financial and accounting matters qualifies him to serve as a member of the Audit Committee. Mr. Steinmetz’s independence from the Fund and the Manager enhances his service as Chair of the Performance Oversight Committee.

Interested Trustees Robert Fairbairn Robert Fairbairn has more than 25 years of experience with BlackRock, Inc. and over 30 years of experience in finance and asset management. In particular, Mr. Fairbairn’s positions as Vice Chairman of BlackRock, Inc., Member of BlackRock’s Global Operating Committee and Co-Chair of BlackRock’s Human Capital Committee provide the Board with a wealth of practical business knowledge and leadership. In addition, Mr. Fairbairn has global investment management and oversight experience through his former positions as Member of BlackRock’s Global Executive Committee, Global Head of BlackRock’s Retail and iShares ® businesses, Head of BlackRock’s Global Client Group, Chairman of BlackRock’s international businesses and his previous oversight over BlackRock’s Strategic Partner Program and Strategic Product Management Group. Mr. Fairbairn also serves as a board member for the funds in the BlackRock Multi-Asset Complex.

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Trustees Experience, Qualifications and Skills John M. Perlowski John M. Perlowski’s experience as Managing Director of BlackRock, Inc. since 2009, as the Head of BlackRock Global Accounting and Product Services since 2009, and as President and Chief Executive Officer of the Fund provides him with a strong understanding of the Fund, its operations, and the business and regulatory issues facing the Fund. Mr. Perlowski’s prior position as Managing Director and Chief Operating Officer of the Global Product Group at Goldman Sachs Asset Management, and his former service as Treasurer and Senior Vice President of the Goldman Sachs Mutual Funds and as Director of the Goldman Sachs Offshore Funds provides the Board with the benefit of his experience with the management practices of other financial companies. Mr. Perlowski also serves as a board member for the funds in the BlackRock Multi-Asset Complex. Mr. Perlowski is a member of BlackRock’s Global Executive Committee. Mr. Perlowski’s experience with BlackRock enhances his service as a member of the Executive Committee.

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Biographical Information

Certain biographical and other information relating to the Trustees is set forth below, including their address and year of birth, principal occupations for at least the last five years, length of time served, total number of registered investment companies and investment portfolios overseen in the BlackRock-advised Funds and any currently held public company and other investment company directorships.

Name and Year of Birth 1,2

Position(s) Held (Length of Service) 3 Principal Occupation(s) During Past Five Years

Number of BlackRock Advised Registered Investment Companies (“RICs”) Consisting of Investment Portfolios (“Portfolios”) Overseen

Public Company and Other Investment Company Directorships Held During Past Five Years Independent Trustees R. Glenn Hubbard 1958

Chair of the Board (Since 2022) and Trustee (Since 2019)

Dean, Columbia Business School from 2004 to 2019; Faculty member, Columbia Business School since 1988.

66 RICs consisting of 101 Portfolios

ADP (data and information services) from 2004 to 2020; Metropolitan Life Insurance Company (insurance); TotalEnergies SE (multi-energy) W. Carl Kester4 r4 1951

Vice Chair of the Board (Since 2022) and Trustee (Since 2019)

Baker Foundation Professor and George Fisher Baker Jr. Professor of Business Administration, Emeritus, Harvard Business School since 2022; George Fisher Baker Jr. Professor of Business Administration, Harvard Business School from 2008 to 2022; Deputy Dean for Academic Affairs from 2006 to 2010; Chairman of the Finance Unit, from 2005 to 2006; Senior Associate Dean and Chairman of the MBA Program from 1999 to 2005; Member of the faculty of Harvard Business School since 1981.

68 RICs consisting of 103 Portfolios

None

Cynthia L. Egan 4 1955

Trustee (Since 2019)

Advisor, U.S. Department of the Treasury from 2014 to 2015; President, Retirement Plan Services, for T. Rowe Price Group, Inc. from 2007 to 2012; executive positions within Fidelity Investments from 1989 to 2007.

68 RICs consisting of 103 Portfolios

Unum (insurance); The Hanover Insurance Group (Board Chair); Huntsman Corporation (Lead Independent Director and non Executive Vice Chair of the Board) (chemical products) Lorenzo A. Flores 1964

Trustee (Since 2021)

Chief Financial Officer, Lattice Semiconductor Corporation (LSCC) since 2025; Chief Financial Officer, Intel Foundry from 2024 to 2025; Vice Chairman, Kioxia, Inc. from 2019 to 2024; Chief Financial Officer, Xilinx, Inc. from 2016 to 2019; Corporate Controller, Xilinx, Inc. from 2008 to 2016.

66 RICs consisting of 101 Portfolios

None

Stayce D. Harris 1959

Trustee (Since 2021)

Lieutenant General, Inspector General of the United States Air Force from 2017 to 2019; Lieutenant General, Assistant Vice Chief of Staff and Director, Air Staff, United States Air Force from 2016 to 2017; Major General, Commander, 22nd Air Force, AFRC, Dobbins Air Reserve Base, Georgia from 2014 to 2016; Pilot, United Airlines from 1990 to 2020.

66 RICs consisting of 101 Portfolios

KULR Technology Group, Inc. in 2021; The Boeing Company (airplane manufacturer)

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Name and Year of Birth 1,2

Position(s) Held (Length of Service) 3 Principal Occupation(s) During Past Five Years

Number of BlackRock Advised Registered Investment Companies (“RICs”) Consisting of Investment Portfolios (“Portfolios”) Overseen

Public Company and Other Investment Company Directorships Held During Past Five Years J. Phillip Holloman 1955

Trustee (Since 2021)

Interim Executive Chairman, President and Chief Executive Officer of Vestis Corporation since 2025; President and Chief Operating Officer, Cintas Corporation from 2008 to 2018.

66 RICs consisting of 101 Portfolios

Vestis Corporation (uniforms and facilities services)

Catherine A. Lynch 4 1961

Trustee (Since 2019)

Chief Executive Officer, Chief Investment Officer and various other positions, National Railroad Retirement Investment Trust from 2003 to 2016; Associate Vice President for Treasury Management, The George Washington University from 1999 to 2003; Assistant Treasurer, Episcopal Church of America from 1995 to 1999.

68 RICs consisting of 103 Portfolios

PennyMac Mortgage Investment Trust

Arthur P. Steinmetz 4 1958

Trustee (Since 2023)

Trustee of Denison University since 2020; Consultant, Posit PBC (enterprise data science) since 2020; Director, ScotiaBank (U.S.) from 2020 to 2023; Chairman, Chief Executive Officer and President of OppenheimerFunds, Inc. from 2015, 2014 and 2013, respectively to 2019; Trustee, President and Principal Executive Officer of 104 OppenheimerFunds funds from 2014 to 2019. Portfolio manager of various OppenheimerFunds fixed income mutual funds from 1986 to 2014.

68 RICs consisting of 103 Portfolios

None

Interested Trustees Robert Fairbairn 5 1965

Trustee (Since 2015)

Vice Chairman of BlackRock, Inc. since 2019; Member of BlackRock’s Global Operating Committee; Co-Chair of BlackRock’s Human Capital Committee; Senior Managing Director of BlackRock, Inc. from 2010 to 2019; oversaw BlackRock’s Strategic Partner Program and Strategic Product Management Group from 2012 to 2019; Member of the Board of Managers of BlackRock Investments, LLC from 2011 to 2018; Global Head of BlackRock’s Retail and iShares ® businesses from 2012 to 2016.

92 RICs consisting of 266 Portfolios

None

John M. Perlowski 4,5 1964

Trustee and President (Since 2015) Chief Executive Officer (Since 2010)

Managing Director of BlackRock, Inc. since 2009; Head of BlackRock Global Accounting and Product Services since 2009; Member of BlackRock’s Global Executive Committee; Advisory Director of Family Resource Network (charitable foundation) since 2009.

94 RICs consisting of 268 Portfolios

None

1 The address of each Trustee is c/o BlackRock, Inc., 50 Hudson Yards, New York, New York 10001. 2 Each Independent Trustee holds office until his or her successor is duly elected and qualifies or until his or her earlier death, resignation, retirement or removal as provided by the Trust’s by-laws or charter or statute, or until December 31 of the year in which he or she turns 75. Trustees who are “interested persons,” as defined in the Investment Company Act (each, an “Interested Trustee”), serve until their successor is duly elected and qualifies or until their earlier death, resignation, retirement or removal as provided by the Trust’s by-laws or statute, or until December 31 of the year in which they turn 72. The Board may determine to extend the terms of Independent Trustees on a case-by-case basis, as appropriate. 3 Following the combination of Merrill Lynch Investment Managers, L.P. (“MLIM”) and BlackRock, Inc. in September 2006, the various legacy MLIM and legacy BlackRock fund boards were realigned and consolidated into three new fund boards in 2007. Certain Independent Trustees first became members of the boards of other legacy MLIM or legacy BlackRock funds as follows: R. Glenn Hubbard, 2004 and W. Carl Kester, 1995. Certain other Independent Trustees became members of the boards of the closed-end funds in the BlackRock Fixed-Income Complex as follows: Cynthia L. Egan, 2016 and Catherine A. Lynch, 2016. 4 Ms. Egan, Dr. Kester, Ms. Lynch, Mr. Steinmetz and Mr. Perlowski are also trustees of the BlackRock Credit Strategies Fund and BlackRock Private Investments Fund. 5 Mr. Fairbairn and Mr. Perlowski are both “interested persons,” as defined in the Investment Company Act, of the Trust based on their positions with BlackRock, Inc. and its affiliates. Mr. Fairbairn and Mr. Perlowski are also board members of the BlackRock Multi-Asset Complex.

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Certain biographical and other information relating to the officers of the Trust who are not Trustees is set forth below, including their address and year of birth, principal occupations for at least the last five years and length of time served.

Name and Year of Birth 1,2 Position(s) Held (Length of Service) Principal Occupation(s) During Past Five Years Officers Who Are Not Trustees Jennifer McGovern 1977

Vice President (Since 2014)

Managing Director of BlackRock, Inc. since 2016.

Trent Walker 1974

Chief Financial Officer (Since 2021)

Managing Director of BlackRock, Inc. since 2019; Executive Vice President of PIMCO from 2016 to 2019.

Jay M. Fife 1970

Treasurer (Since 2007)

Managing Director of BlackRock, Inc. since 2007.

Aaron Wasserman 1974

Chief Compliance Officer (Since 2023)

Managing Director of BlackRock, Inc. since 2018; Chief Compliance Officer of the BlackRock-advised funds in the BlackRock Multi-Asset Complex, the BlackRock Fixed-Income Complex and the iShares Complex since 2023; Deputy Chief Compliance Officer for the BlackRock-advised funds in the BlackRock Multi-Asset Complex, the BlackRock Fixed-Income Complex and the iShares Complex from 2014 to 2023. Lisa Belle 1968

Anti-Money Laundering Compliance Officer (Since 2019)

Managing Director of BlackRock, Inc. since 2019; Global Financial Crime Head for Asset and Wealth Management of JP Morgan from 2013 to 2019. Janey Ahn 1975

Secretary (Since 2019)

Managing Director of BlackRock, Inc. since 2018.

1 The address of each Officer is c/o BlackRock, Inc., 50 Hudson Yards, New York, New York 10001. 2 Officers of the Trust serve at the pleasure of the Board.

Share Ownership

Information relating to each Trustee’s share ownership in the Fund and in all BlackRock-advised Funds that are currently overseen by the respective Trustee (“Supervised Funds”) as of December 31, 2024 is set forth in the chart below. Amounts shown may include shares as to which a Trustee has indirect beneficial ownership, such as through participation in certain family accounts, 529 college savings plan interests, or similar arrangements where the Trustee has beneficial economic interest but not a direct ownership interest.

Name Dollar Range in the Fund Aggregate Dollar Range in Supervised Funds* Independent Trustees Cynthia L. Egan .................................................... None Over $100,000 Lorenzo A. Flores. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . None Over $100,000 Stayce D. Harris . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . None Over $100,000 J. Phillip Holloman .................................................. None Over $100,000 R. Glenn Hubbard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $1 - $10,000 Over $100,000 W. Carl Kester . . ................................................... None Over $100,000 Catherine A. Lynch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . None Over $100,000 Arthur P. Steinmetz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . None Over $100,000 Interested Trustees Robert Fairbairn. . . ................................................. None Over $100,000 John M. Perlowski . . ................................................ None Over $100,000

* Includes share equivalents owned under the deferred compensation plan in the Supervised Funds by certain Independent Trustees who have participated in the deferred compensation plan of the Supervised Funds.

As of October 2, 2025, the Trustees and officers of the Trust as a group directly or indirectly beneficially owned an aggregate of less than 1% of any class of the outstanding shares of the Fund. As of December 31, 2024, none of the Independent Trustees of the Trust or their immediate family members owned beneficially or of record any securities of the Fund’s investment adviser, principal underwriter, or any person directly or indirectly controlling, controlled by, or under common control with such entities.

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Compensation of Trustees

Each Independent Trustee is paid an annual retainer of $370,000 per year for his or her services as a Board member of the BlackRock-advised Funds, including the Fund, together with out-of-pocket expenses in accordance with a Board policy on travel and other business expenses relating to attendance at meetings. In addition, the Chair of the Board and the Vice Chair of the Board are paid an additional annual retainer of $140,000 and $84,000, respectively. The Chairs of the Audit Committee, Performance Oversight Committee, Compliance Committee, Governance and Nominating Committee, and Securities Lending Committee are paid an additional annual retainer of $55,000, $42,500, $50,000, $42,500 and $20,000, respectively. Each of the other members of the Audit Committee, Compliance Committee, Governance and Nominating Committee, and Securities Lending Committee are paid an additional annual retainer of $30,000, $25,000, $25,000 and $15,000, respectively, for his or her service on such committee. An Independent Trustee may receive additional compensation for his or her service as a member or Chair, as applicable, of one or more ad hoc committees of the Board. The Fund will pay a pro rata portion quarterly (based on relative net assets) of the foregoing Trustee fees paid by the funds in the BlackRock Fixed-Income Complex.

The Independent Trustees have agreed that a maximum of 50% of each Independent Trustee’s total compensation paid by funds in the BlackRock Fixed-Income Complex may be deferred pursuant to the BlackRock Fixed-Income Complex’s deferred compensation plan. Under the deferred compensation plan, deferred amounts earn a return for the Independent Trustees as though equivalent dollar amounts had been invested in shares of certain funds in the BlackRock Fixed-Income Complex selected by the Independent Trustees. This has approximately the same economic effect for the Independent Trustees as if they had invested the deferred amounts in such funds in the BlackRock Fixed-Income Complex. The deferred compensation plan is not funded and obligations thereunder represent general unsecured claims against the general assets of a fund and are recorded as a liability for accounting purposes.

The following table sets forth the compensation paid to the Trustees by the Trust, on behalf of the Fund, for the fiscal year ended June 30, 2025 and the aggregate compensation, including deferred compensation amounts, paid to them by all BlackRock-advised Funds for the calendar year ended December 31, 2024.

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Name 1 Compensation from the Fund

Estimated Annual Benefits Upon Retirement

Aggregate Compensation from the Fund and Other BlackRock-Advised Funds 2,3 Independent Trustees Cynthia L. Egan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $2,227 None $655,000 Lorenzo A. Flores . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $1,804 None $420,000 Stayce D. Harris . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $1,703 None $395,000 J. Phillip Holloman . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $1,824 None $425,000 R. Glenn Hubbard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $2,448 None $600,000 W. Carl Kester . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $2,535 None $746,500 Catherine A. Lynch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $2,307 None $695,000 Arthur P. Steinmetz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $1,975 None $534,206 Interested Trustees Robert Fairbairn . . . ................................ None None None John M. Perlowski . . . .............................. None None None

1 For the number of BlackRock-advised Funds from which each Trustee receives compensation see the Biographical Information Chart beginning on page I-16. 2 For the Independent Trustees, this amount represents the aggregate compensation earned from the funds in the BlackRock Fixed-Income Complex during the calendar year ended December 31, 2024. Of this amount, Mr. Flores, Ms. Harris, Mr. Holloman, Dr. Hubbard, Dr. Kester, Ms. Lynch and Mr. Steinmetz deferred $210,000, $197,500, $212,500, $300,000, $58,641, $34,750 and $266,957, respectively, pursuant to the BlackRock Fixed-Income Complex’s deferred compensation plan. 3 Total amount of deferred compensation payable by the BlackRock Fixed-Income Complex to Mr. Flores, Ms. Harris, Mr. Holloman, Dr. Hubbard, Dr. Kester, Ms. Lynch and Mr. Steinmetz is $743,845, $726,494, $773,663, $5,010,835, $2,155,608, $631,953 and $278,737, respectively, as of December 31, 2024. Ms. Egan did not participate in the deferred compensation plan as of December 31, 2024.

IV. Management, Advisory and Other Service Arrangements

The Trust, on behalf of the Fund, has entered into a management agreement with BlackRock, (the “Management Agreement”), pursuant to which BlackRock receives for its services to the Fund a fee based on the Fund’s average daily net assets.

BlackRock has contractually agreed to waive the management fee with respect to any portion of the Fund’s assets estimated to be attributable to investments in other equity and fixed-income mutual funds and exchange traded funds managed by BlackRock or its affiliates that have a contractual management fee, through June 30, 2027. In addition, BlackRock has contractually agreed to waive its management fees by the amount of investment advisory fees the Fund pays to BlackRock indirectly through its investment in money market funds managed by BlackRock or its affiliates, through June 30, 2027. The contractual agreement may be terminated upon 90 days’ notice by a majority of the Independent Trustees or by a vote of a majority of the outstanding voting securities of the Fund.

The Manager has contractually agreed to waive and/or reimburse fees or expenses in order to limit Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses (as defined in the Prospectuses)) as a percentage of average daily net assets to 0.75% for Investor A Shares, 1.50% for Investor C Shares, 0.50% for Institutional Shares, 0.45% for Class K Shares, and 0.60% for Investor A1 Shares through June 30, 2027. This contractual agreement may be terminated upon 90 days’ notice by a majority of the Independent Trustees or by a vote of a majority of the outstanding voting securities of the Fund.

Pursuant to the Management Agreement, the Manager may from time to time, in its sole discretion to the extent permitted by applicable law, appoint one or more sub-advisers, including, without limitation, affiliates of the Manager, to perform investment advisory services with respect to the Fund. In addition, the Manager may delegate certain of its investment advisory functions under the Management Agreement to one or more of its affiliates to the extent permitted by applicable law. The Manager may terminate any or all sub-advisers or such delegation arrangements in its sole discretion at any time to the extent permitted by applicable law.

The table below sets forth information about the total management fees paid by the Fund to the Manager, and the amounts waived and/or reimbursed by the Manager, for the periods indicated:

Fees Paid to the Manager Fees Waived by the Manager Fees Reimbursed by the Manager Fiscal Year Ended June 30, 2025. . . . . . . . . . . . . . . . . . . . . . . . . . . . . $5,451,313 $ 670,599 $244,799 Fiscal Year Ended June 30, 2024. . . . . . . . . . . . . . . . . . . . . . . . . . . . . $5,610,088 $ 696,417 $211,191

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Fees Paid to the Manager Fees Waived by the Manager Fees Reimbursed by the Manager Fiscal Year Ended June 30, 2023. . . . . . . . . . . . . . . . . . . . . . . . . . . . . $6,103,785 $1,092,374 $123,807

Information Regarding the Portfolio Managers

Michael Kalinoski, CFA, Kevin Maloney, CFA, Ryan McDonald, CFA, Christian Romaglino, CFA, and Sean Carney are the Fund’s portfolio managers and are primarily responsible for the day-to-day management of the Fund’s portfolio.

Other Funds and Accounts Managed

The following table sets forth information about funds and accounts other than the Fund for which the portfolio managers are primarily responsible for the day-to-day portfolio management as of June 30, 2025.

Number of Other Accounts Managed and Assets by Account Type

Number of Other Accounts and Assets for Which Advisory Fee is Performance-Based

Name of Portfolio Manager

Other Registered Investment Companies

Other Pooled Investment Vehicles Other Accounts

Other Registered Investment Companies

Other Pooled Investment Vehicles Other Accounts Sean Carney 3 0 0 0 0 0 $11.91 Billion $0 $0 $0 $0 $0 Michael Kalinoski, CFA 33 0 0 0 0 0 $29.41 Billion $0 $0 $0 $0 $0 Kevin Maloney, CFA 42 0 0 0 0 0 $38.51 Billion $0 $0 $0 $0 $0 Ryan McDonald, CFA 6 0 0 0 0 0 $8.92 Billion $0 $0 $0 $0 $0 Christian Romaglino, CFA 36 0 0 0 0 0 $15.16 Billion $0 $0 $0 $0 $0

Por tfolio Manager Compensation Overview

The discussion below describes the portfolio managers’ compensation as of June 30, 2025.

BlackRock’s financial arrangements with its portfolio managers, its competitive compensation and its career path emphasis at all levels reflect the value senior management places on key resources. Compensation may include a variety of components and may vary from year to year based on a number of factors. The principal components of compensation include a base salary, a performance-based discretionary bonus, participation in various benefits programs and one or more of the incentive compensation programs established by BlackRock.

Base Compensation. Generally, portfolio managers receive base compensation based on their position with the firm.

Discretionary Incentive Compensation

Discretionary incentive compensation is a function of several components: the performance of BlackRock, Inc., the performance of the portfolio manager’s group within BlackRock, the investment performance, including risk adjusted returns, of the firm’s assets under management or supervision by that portfolio manager relative to predetermined benchmarks, and the individual’s performance and contribution to the overall performance of these portfolios and BlackRock. In most cases, these benchmarks are the same as the benchmark or benchmarks against which the performance of the Fund or other accounts managed by the portfolio managers are measured. Among other things, BlackRock’s Chief Investment Officers make a subjective determination with respect to each portfolio manager’s compensation based on the performance of the Fund and other accounts managed by each portfolio manager relative to the various benchmarks. Performance of fixed-income funds is measured on a pre-tax and/or

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after-tax basis over various time periods including 1-, 3- and 5-year periods, as applicable. With respect to these portfolio managers, such benchmarks for the Fund and other accounts are:

Portfolio Manager Benchmarks Michael Kalinoski, CFA Kevin Maloney, CFA Ryan McDonald, CFA Christian Romaglino, CFA

A combination of market-based indices (e.g., Bloomberg Municipal Bond Index), certain customized indices and certain fund industry peer groups.

Sean Carney A combination of market-based indices (e.g., Bloomberg Municipal Bond Index), certain customized indices and certain fund industry peer groups. Due to Portfolio Manager Sean Carney’s unique position (Portfolio Manager and Co-Chief Investment Officer of Tax Exempt Fixed Income) his compensation does not solely reflect his role as PM of the funds managed by him. The performance of his fund(s) are included in consideration of his incentive compensation but given his unique role it is not the sole driver of compensation.

Distribution of Discretionary Incentive Compensation. Discretionary incentive compensation is distributed to portfolio managers in a combination of cash, deferred BlackRock, Inc. stock awards, and/or deferred cash awards that notionally track the return of certain BlackRock investment products.

Portfolio managers receive their annual discretionary incentive compensation in the form of cash. Portfolio managers whose total compensation is above a specified threshold also receive deferred BlackRock, Inc. stock awards annually as part of their discretionary incentive compensation. Paying a portion of discretionary incentive compensation in the form of deferred BlackRock, Inc. stock puts compensation earned by a portfolio manager for a given year “at risk” based on BlackRock’s ability to sustain and improve its performance over future periods. In some cases, additional deferred BlackRock, Inc. stock may be granted to certain key employees as part of a long-term incentive award to aid in retention, align interests with long-term shareholders and motivate performance. Deferred BlackRock, Inc. stock awards are generally granted in the form of BlackRock, Inc. restricted stock units that vest pursuant to the terms of the applicable plan and, once vested, settle in BlackRock, Inc. common stock. The portfolio managers of this Fund have deferred BlackRock, Inc. stock awards.

For certain portfolio managers, a portion of the discretionary incentive compensation is also distributed in the form of deferred cash awards that notionally track the returns of select BlackRock investment products they manage, which provides direct alignment of portfolio manager discretionary incentive compensation with investment product results. Deferred cash awards vest ratably over a number of years and, once vested, settle in the form of cash. Only portfolio managers who manage specified products and whose total compensation is above a specified threshold are eligible to participate in the deferred cash award program.

Other Compensation Benefits. In addition to base salary and discretionary incentive compensation, portfolio managers may be eligible to receive or participate in one or more of the following:

Incentive Savings Plans — BlackRock, Inc. has created a variety of incentive savings plans in which BlackRock employees are eligible to participate, including a 401(k) plan, the BlackRock Retirement Savings Plan (RSP), and the BlackRock Employee Stock Purchase Plan (ESPP). The employer contribution components of the RSP include a company match equal to 50% of the first 8% of eligible pay contributed to the plan capped at $5,000 per year, and a company retirement contribution equal to 3-5% of eligible compensation up to the Internal Revenue Service limit ($350,000 for 2025). The RSP offers a range of investment options, including registered investment companies and collective investment funds managed by the firm. BlackRock contributions follow the investment direction set by participants for their own contributions or, absent participant investment direction, are invested into a target date fund that corresponds to, or is closest to, the year in which the participant attains age 65. The ESPP allows for investment in BlackRock common stock at a 5% discount on the fair market value of the stock on the purchase date. Annual participation in the ESPP is limited to the purchase of 1,000 shares of common stock or a dollar value of $25,000 based on its fair market value on the purchase date. All of the eligible portfolio managers are eligible to participate in these plans.

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Por tfolio Manager Beneficial Holdings

As of June 30, 2025, the Fund’s most recently completed fiscal year end, the dollar range of securities beneficially owned by the portfolio managers in the Fund is shown below:

Portfolio Manager Dollar Range of Equity Securities Beneficially Owned Michael Kalinoski, CFA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $1 - $10,000 Kevin Maloney, CFA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $1 - $10,000 Ryan McDonald, CFA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $1 - $10,000 Christian Romaglino, CFA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . None Sean Carney . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . None

Por tfolio Manager Potential Material Conflicts of Interest

BlackRock has built a professional working environment, firm-wide compliance culture and compliance procedures and systems designed to protect against potential incentives that may favor one account over another. BlackRock has adopted policies and procedures that address the allocation of investment opportunities, execution of portfolio transactions, personal trading by employees and other potential conflicts of interest that are designed to ensure that all client accounts are treated equitably over time. Nevertheless, BlackRock furnishes investment management and advisory services to numerous clients in addition to the Fund, and BlackRock may, consistent with applicable law, make investment recommendations to other clients or accounts (including accounts which are hedge funds or have performance or higher fees paid to BlackRock, or in which portfolio managers have a personal interest in the receipt of such fees), which may be the same as or different from those made to the Fund. In addition, BlackRock, its affiliates and significant shareholders and any officer, director, shareholder or employee may or may not have an interest in the securities whose purchase and sale BlackRock recommends to the Fund. BlackRock, or any of its affiliates or significant shareholders, or any officer, director, shareholder, employee or any member of their families may take different actions than those recommended to the Fund by BlackRock with respect to the same securities. Moreover, BlackRock may refrain from rendering any advice or services concerning securities of companies of which any of BlackRock’s (or its affiliates’ or significant shareholders’) officers, directors or employees are directors or officers, or companies as to which BlackRock or any of its affiliates or significant shareholders or the officers, directors and employees of any of them has any substantial economic interest or possesses material non public information. Certain portfolio managers also may manage accounts whose investment strategies may at times be opposed to the strategy utilized for a fund. It should also be noted that a portfolio manager may be managing hedge fund and/or long only accounts, or may be part of a team managing hedge fund and/or long only accounts, subject to incentive fees. Such portfolio managers may therefore be entitled to receive a portion of any incentive fees earned on such accounts. Currently, the portfolio managers of this Fund are not entitled to receive a portion of incentive fees of other accounts.

As a fiduciary, BlackRock owes a duty of loyalty to its clients and must treat each client fairly. When BlackRock purchases or sells securities for more than one account, the trades must be allocated in a manner consistent with its fiduciary duties. BlackRock attempts to allocate investments in a fair and equitable manner among client accounts, with no account receiving preferential treatment. To this end, BlackRock has adopted policies that are intended to ensure reasonable efficiency in client transactions and provide BlackRock with sufficient flexibility to allocate investments in a manner that is consistent with the particular investment discipline and client base, as appropriate.

Custodian

State Street Bank and Trust Company (“State Street”) has been retained to act as custodian for the Fund and is located at 1 Congress Street, Suite 1, Boston, Massachusetts 02114-2016. The custodian, among other things, maintains a custody account or accounts in the name of the Fund, receives and delivers all assets for the Fund upon purchase and upon sale or maturity, and collects and receives all income and other payments and distributions on account of the assets of the Fund.

Transfer Agency and Shareholders’ Administrative Services

BNY Mellon Investment Servicing (US) Inc. (“BNY Mellon”), which has its principal place of business at 301 Bellevue Parkway, Wilmington, Delaware 19809, serves as the transfer and dividend disbursement agent for the Fund.

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Pursuant to a Shareholders’ Administrative Services Agreement, the Manager provides certain shareholder liaison services in connection with the Fund’s investor service center. The Fund reimburses the Manager for its costs in maintaining the service center, which costs include, among other things, employee salaries, leasehold expenses, and other out-of-pocket expenses which are a component of the transfer agency fees in the Fund’s annual report.

The following table sets forth the fees paid by the Fund to the Manager pursuant to the Shareholders’ Administrative Services Agreement for the periods indicated:

Fees Paid to the Manager Fees Waived by the Manager Fiscal Year Ended June 30, 2025. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $6,054 $5,259 Fiscal Year Ended June 30, 2024. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $4,886 $4,436 Fiscal Year Ended June 30, 2023. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $8,469 $5,228

Accounting Services

State Street serves as the accounting services provider for the Fund. State Street maintains the books of account and other financial records (other than those maintained by the Fund’s custodian); records general ledger entries; calculates daily net income; reconciles activity to the trial balance; calculates and publishes daily net asset value; prepares account balances; and provides such other accounting services as may be required. In connection with its accounting services, State Street also provides certain administration services.

The table below shows the amounts paid by the Fund to State Street and the Manager for accounting services for the periods shown:

Fees Paid to State Street Fees Paid to the Manager Fiscal Year Ended June 30, 2025 . . . . . . ....................................... $166,333 $0 Fiscal Year Ended June 30, 2024 . . . . . . ....................................... $160,876 $0 Fiscal Year Ended June 30, 2023 . . . . . . ....................................... $167,807 $0

Credit Agreement

The Trust, on behalf of the Fund, along with certain other funds managed by the Manager and its affiliates (“Participating Funds”), is a party to a 364-day, $2.4 billion credit agreement with a group of lenders, which facility terminates on April 9, 2026 unless otherwise extended or renewed (the “Credit Agreement”). Excluding commitments designated for certain Participating Funds, the Participating Funds, including the Fund, can borrow up to an aggregate commitment amount of $1.75 billion at any time outstanding, subject to asset coverage and other limitations as specified in the Credit Agreement. The Fund may borrow under the Credit Agreement to meet shareholder redemptions and for other lawful purposes. However, the Fund may not borrow under the Credit Agreement for leverage. The Fund may borrow up to the maximum amount allowable under its current Prospectuses and SAI, subject to various other legal, regulatory or contractual limits. Borrowing results in interest expense and other fees and expenses for the Fund which may impact the Fund’s net expenses. The costs of borrowing may reduce the Fund’s return. The Fund is charged its pro rata share of upfront fees and commitment fees on the aggregate commitment amount based on its net assets. If the Fund borrows pursuant to the Credit Agreement, the Fund will be charged interest at a variable rate.

V. Information on Sales Charges and Distribution Related Expenses

Set forth below is information on sales charges (including any contingent deferred sales charges (“CDSCs”)) received by the Fund, including the amounts paid to affiliates of the Manager (“Affiliates”), for each of the Fund’s last three fiscal years. BlackRock Investments, LLC (“BRIL” or the “Distributor”), an affiliate of the Manager, acts as the Fund’s sole distributor.

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Investor A and Investor A1 Sales Charge Information

Investor A Shares

Gross Sales Charges Collected

Sales Charge Retained by BRIL

Sales Charges Paid To Affiliates

CDSCs Received On Redemption of Load-Waived Shares Fiscal Year Ended June 30, 2025 ..................... $29,890 $1,939 $1,939 $13,513 Fiscal Year Ended June 30, 2024 ..................... $49,574 $3,724 $3,724 $27,062 Fiscal Year Ended June 30, 2023 ..................... $54,495 $3,708 $3,708 $44,773

Investor A1 Shares

Gross Sales Charges Collected

Sales Charge Retained by BRIL

Sales Charges Paid To Affiliates

CDSCs Received On Redemption of Load-Waived Shares Fiscal Year Ended June 30, 2025 . . . . . . . . . . . . . . . . . . . . . $0 $0 $0 $0 Fiscal Year Ended June 30, 2024 . . . . . . . . . . . . . . . . . . . . . $0 $0 $0 $0 Fiscal Year Ended June 30, 2023 . . . . . . . . . . . . . . . . . . . . . $0 $0 $0 $0

Investor C Sales Charge Information

Investor C Shares CDSCs Received by BRIL

CDSCs Paid to Affiliates Fiscal Year Ended June 30, 2025. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $2,456 $2,456 Fiscal Year Ended June 30, 2024. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 434 $ 434 Fiscal Year Ended June 30, 2023. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $5,365 $5,365

The table below provides information for the fiscal year ended June 30, 2025 about the 12b-1 fees the Fund paid to BRIL under the Fund’s 12b-1 plans. A significant amount of the fees collected by BRIL were paid to affiliates for providing shareholder servicing activities for Investor A and Investor A1 Shares and for providing shareholder servicing and distribution-related activities and services for Investor C and Investor C1 Shares.

Class Name Fees Paid to BRIL Investor A Shares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $1, 106,943 Investor A1 Shares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 57,953 Investor C Shares . . . .................................................................... $ 300,736

VI. Computation of Offering Price Per Share

An illustration of the computation of the public offering price of the Investor A Shares of the Fund, based on the value of the Fund’s Investor A Shares’ net assets and number of Investor A Shares outstanding as of June 30, 2025 follows:

Investor A Shares Net Assets ............................................................................. $392,695,658 Number of Shares Outstanding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38, 484,486 Net Asset Value Per Share (net assets divided by number of shares outstanding) . . . . . . . . . . ....................................................... $10.20 Sales Charge (4.25% of offering price; 4.44% of net asset value per share) 1 . . . . . . . . . . . . . . . . . . . . 0.45 Offering Price . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $10.65

1 Assumes maximum sales charge applicable. The offering price for the Fund’s other share classes is equal to the share class’ net asset value computed as set forth above for Investor A Shares. Though not subject to a sales charge, certain share classes may be subject to a CDSC on redemption. For more information on the purchasing and valuation of shares, please see “Purchase of Shares” and “Pricing of Shares” in Part II of this Statement of Additional Information.

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VII. Portfolio Transactions and Brokerage

See “Portfolio Transactions and Brokerage” in Part II of this Statement of Additional Information for more information.

Information about the brokerage commissions paid by the Fund, including commissions paid to affiliates of the Manager, is set forth in the following table:

Aggregate Brokerage Commissions Paid Brokerage Commissions Paid to Affiliates Fiscal Year Ended June 30, 2025 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 5,378 $0 Fiscal Year Ended June 30, 2024 .................................. $42,842 $0 Fiscal Year Ended June 30, 2023 .................................. $86,438 $0

As of June 30, 2025, the Fund held no securities of its regular brokers or dealers (as defined in Rule 10b-1 under the Investment Company Act) whose shares were purchased during the fiscal year ended June 30, 2025.

Securities Lending

To the extent that the Fund engages in securities lending, the Fund conducts its securities lending pursuant to an exemptive order from the Commission permitting it to lend portfolio securities to borrowers affiliated with the Fund and to retain an affiliate of the Fund as securities lending agent. To the extent that the Fund engages in securities lending, BlackRock Investment Management, LLC (“BIM”) acts as securities lending agent for the Fund, subject to the overall supervision of the Manager, pursuant to a written agreement (the “Securities Lending Agency Agreement”). BIM administers the lending program in accordance with guidelines approved by the Board.

To the extent the Fund engages in securities lending, the Fund retains a portion of the securities lending income and remits the remaining portion to BIM as compensation for its services as securities lending agent. Securities lending income is generally equal to the total of income earned from the reinvestment of cash collateral (and excludes collateral investment fees as defined below), and any fees or other payments to and from borrowers of securities. As securities lending agent, BIM bears all operational costs directly related to securities lending. The Fund is responsible for fees in connection with the investment of cash collateral received for securities on loan in a money market fund managed by BlackRock (the “collateral investment fees”); however, the securities lending agent has agreed to reduce the amount of securities lending income it receives in order to effectively limit the collateral investment fees a Fund bears to an annual rate of 0.04%. Such money market fund shares will not be subject to a sales load, distribution fee or service fee.

To the extent that the Fund invests cash collateral in a non-government money market fund, the Fund may be subject to a discretionary liquidity fee of up to 2% on all redemptions. Discretionary liquidity fees may be imposed or terminated at any time at the discretion of the board of directors of the money market fund, or its delegate, if it is determined that such fee would be, or would not be, respectively, in the best interest of the money market fund. Additionally, the Fund will be subject to a mandatory liquidity fee if the money market fund’s total net redemptions on a single day exceed 5% of the money market fund’s net assets, unless the liquidity costs are de minimis (i.e., less than one basis point (0.01%)). The money market fund will determine the size of the mandatory liquidity fee by making a good faith estimate of certain costs the money market fund would incur if it were to sell a pro rata amount of each security in the portfolio to satisfy the amount of net redemptions on that day. There is no limit to the size of a mandatory liquidity fee. If the money market fund cannot estimate the costs of selling a pro rata amount of each portfolio security in good faith and supported by data, it is required to apply a default liquidity fee of 1% on the value of shares redeemed on that day. The imposition of any such discretionary or mandatory liquidity fee would reduce the Fund’s returns on securities lending.

Under the securities lending program, the Fund is categorized into one of several specific asset classes. The determination of the Fund’s asset class category (fixed income, domestic equity, international equity, or fund of funds), each of which may be subject to a different fee arrangement, is based on a methodology agreed to by the Trust and BIM.

Pursuant to the current securities lending agreement: (i) if the Fund were to engage in securities lending, the Fund retains 82% of securities lending income (which excludes collateral investment expenses), and (ii) this amount can never be less than 70% of the sum of securities lending income plus collateral investment expenses.

In addition, commencing the business day following the date that the aggregate securities lending income earned across the BlackRock Fixed-Income Complex in a calendar year exceeds specified thresholds, the Fund, pursuant to the current securities lending agreement, will receive for the remainder of that calendar year securities

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lending income as follows: (i) If the Fund were to engage in securities lending, 85% of securities lending income (which excludes collateral investment expenses); and (ii) this amount can never be less than 70% of the sum of securities lending income plus collateral investment expenses.

The Fund had no income and fees/compensation related to its securities lending activities during its most recent fiscal year ended June 30, 2025.

VIII. Additional Information

Description of Shares

The Trust is a business trust organized on August 2, 1985 under the laws of Massachusetts. On October 1, 1987, the Trust changed its name from “Merrill Lynch Multi-State Tax-Exempt Series Trust” to “Merrill Lynch Multi-State Municipal Bond Series Trust,” and on December 22, 1987 the Trust again changed its name to “Merrill Lynch Multi-State Municipal Series Trust.” Effective September 29, 2006, the Trust changed its name to “BlackRock Multi-State Municipal Series Trust” and the Fund changed its name to “BlackRock New York Municipal Bond Fund.” Effective February 18, 2015, the Fund changed its name to “BlackRock New York Municipal Opportunities Fund.” Effective on the close of business of February 24, 2020, all of the issued and outstanding Investor C1 Shares of the Fund converted into Investor A Shares of the Fund.

The Trust is an open-end management investment company comprised of separate Series, each of which is a separate portfolio offering shares to selected groups of purchasers. Each of the Series is managed independently in order to provide shareholders who are residents of the state to which such Series relates with income exempt from Federal, and in certain cases, state and local income taxes. The Trustees are authorized to create an unlimited number of Series and, with respect to each Series, to issue an unlimited number of full and fractional shares of beneficial interest, $.10 par value per share, of different classes and to divide or combine the shares into a greater or lesser number of shares without thereby changing the proportionate beneficial interests in the Series. The Trust is presently comprised of the Fund, BlackRock New Jersey Municipal Bond Fund and BlackRock Pennsylvania Municipal Bond Fund. Shareholder approval is not required for the authorization of additional Series or classes of a Series of the Trust.

Miscellaneous

Counsel. Willkie Farr & Gallagher LLP, 787 Seventh Avenue, New York, New York 10019, serves as the Fund’s counsel.

Independent Registered Public Accounting Firm. Deloitte & Touche LLP, with offices located at 115 Federal Street Boston, MA 02110 serves as the Fund’s independent registered public accounting firm.

Principal Shareholders

To the knowledge of the Fund, the following entities owned of record or beneficially 5% or more of a class of the Fund’s shares as of October 1, 2025:

Name Address % Class JP Morgan Securities LLC 4 Chase Metrotech Center Brooklyn, NY 11245

18.85 Investor A Shares

Pershing LLC 1 Pershing Plaza Jersey City, NJ 07399-0001

17.88 Investor A Shares

Merrill Lynch Pierce Fenner & Smith Incorporated

4800 East Deer Lake Drive 3 rd Floor Jacksonville, FL 32246-6484

16.23 Investor A Shares

Morgan Stanley Smith Barney LLC 1 New York Plaza, 12 th Floor New York, NY 10004-1901

12.74 Investor A Shares

Wells Fargo Clearing Services 2801 Market Street St. Louis, MO 63103

11.06 Investor A Shares

National Financial Services LLC 499 Washington Blvd. 5 th Floor Jersey City, NJ 07310-2010

7.29 Investor A Shares

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Name Address % Class Merrill Lynch Pierce Fenner & Smith Incorporated

4800 East Deer Lake Drive 3 rd Floor Jacksonville, FL 32246-6484

62.27 Investor A1 Shares

Morgan Stanley Smith Barney LLC 1 New York Plaza, 12 th Floor New York, NY 10004-1901

6.31 Investor A1 Shares

National Financial Services LLC 499 Washington Blvd. 5th Floor Jersey City, NJ 07310-2010

5.45 Investor A1 Shares

National Financial Services LLC 499 Washington Blvd. 5th Floor Jersey City, NJ 07310-2010

18.49 Investor C Shares

JP Morgan Securities LLC 4 Chase Metrotech Center Brooklyn, NY 11245

17.79 Investor C Shares

Pershing LLC 1 Pershing Plaza Jersey City, NJ 07399-0001

14.66 Investor C Shares

Morgan Stanley Smith Barney LLC 1 New York Plaza, 12 th Floor New York, NY 10004-1901

10.49 Investor C Shares

American Enterprise Investment Services 707 2 nd Avenue South Minneapolis, MN 55402-2405

9.30 Investor C Shares

Wells Fargo Clearing Services 2801 Market Street St. Louis, MO 63103

8.76 Investor C Shares

Raymond James 880 Carillon Pkwy Saint Petersburg FL 33716-1102

7.59 Investor C Shares

LPL Financial 4707 Executive Drive San Diego, CA 92121-3091

5.90 Investor C Shares

Charles Schwab & Co INC 101 Montgomery Street San Francisco CA 94104-4122

15.60 Institutional Class

Pershing LLC 1 Pershing Plaza Jersey City, NJ 07399-0001

15.13 Institutional Class

National Financial Services LLC 499 Washington Blvd Jersey City, NJ 07310

14.19 Institutional Class

Merrill Lynch Pierce Fenner & Smith Incorporated

4800 East Deer Lake Drive 3 rd Floor Jacksonville, FL 32246-6484

10.89 Institutional Class

Morgan Stanley Smith Barney LLC 1 New York Plaza, 12 th Floor New York, NY 10004-1901

8.99 Institutional Class

American Enterprise Investment Services 707 2 nd Avenue South Minneapolis, MN 55402-2405

8.10 Institutional Class

LPL Financial 4707 Executive Drive San Diego, CA 92121-3091

7.92 Institutional Class

UBS Financial Services Inc. 1000 Harbor Blvd. Weehawken, NJ 07086-6761

5.02 Institutional Class

Edward D Jones and Co. 12555 Manchester Road St. Louis, MO 63131-3710

51.86 Class K Shares

JP Morgan Securities LLC 4 Chase Metrotech Center Brooklyn, NY 11245

24.43 Class K Shares

Charles Schwab & Co INC 211 Main ST, San Francisco CA 94105

10.37 Class K Shares

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Name Address % Class BNYM I S Trust Co CUST 301 Bellevue Pkwy Wilmington, DE 19809

5.61 Class K Shares

State Tax Issues

The portion of exempt-interest dividends equal to the portion which the Fund’s interest on New York Municipal Bonds bears to all of the Fund’s tax-exempt interest (whether or not distributed) will be exempt from New York State and New York City personal income taxes. To the extent the Fund’s distributions are derived from interest on taxable investments or from gain from the sale of investments or are attributable to the portion of the Fund’s tax-exempt interest that is not derived from New York Municipal Bonds, they will constitute taxable income for New York State and New York City personal income tax purposes. Capital gain dividends paid by the Fund are treated as capital gains which are taxed at ordinary income tax rates for New York State and City personal income tax purposes. Distributions paid to a corporate shareholder from investment income, including exempt-interest dividends, and capital gains of the Fund will be subject to New York State corporate franchise and New York City corporation income tax.

IX. Financial Statements

The audited financial statements, financial highlights and notes thereto in the Fund’s Annual Financial Statements and Additional Information for the fiscal year ended June 30, 2025, as filed with the SEC on Form N-CSR (the “2025 Annual Financial Statements”), are incorporated in this SAI by reference. No other parts of the 2025 Annual Financial Statements are incorporated by reference herein. The 2025 Annual Financial Statements have been audited by Deloitte & Touche LLP. The report of Deloitte & Touche LLP is incorporated herein by reference. Such 2025 Annual Financial Statements have been incorporated herein in reliance upon the report of such firm given their authority as experts in accounting and auditing. Additional copies of the Fund’s Annual and Semi-Annual Reports to shareholders and the Fund’s Annual and Semi-Annual Financial Statements and Additional Information may be obtained at no charge by telephoning the Distributor at the telephone number appearing on the front page of this SAI.

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PART II

Throughout this Statement of Additional Information (“SAI”), each BlackRock-advised fund may be referred to as a “Fund” or collectively with others as the “Funds.” Certain Funds may also be referred to as “Municipal Funds” if they invest certain of their assets in municipal investments described below.

Each Fund is organized either as a Maryland corporation, a Massachusetts business trust or a Delaware statutory trust. In each jurisdiction, nomenclature varies. For ease and clarity of presentation, shares of common stock and shares of beneficial interest are referred to herein as “shares” or “Common Stock,” holders of shares of Common Stock are referred to as “shareholders,” the trustees or directors of each Fund are referred to as “Directors,” the boards of trustees/directors of each Fund are referred to as the “Board of Directors” or the “Board,” BlackRock Advisors, LLC, BlackRock Fund Advisors or their respective affiliates is the investment adviser or manager of each Fund and is referred to herein as the “Manager” or “BlackRock,” and the investment advisory agreement or management agreement applicable to each Fund is referred to as the “Management Agreement.” Each Fund’s Articles of Incorporation or Declaration of Trust, together with all amendments thereto, is referred to as its “charter.” The Investment Company Act of 1940, as amended, is referred to herein as the “Investment Company Act.” The Securities Act of 1933, as amended, is referred to herein as the “Securities Act.” The Securities and Exchange Commission is referred to herein as the “Commission” or the “SEC.”

Certain Funds are “feeder” funds (each, a “Feeder Fund”) that invest all or a portion of their assets in a corresponding “master” portfolio (each, a “Master Portfolio”) of a master limited liability company (each, a “Master LLC”), a mutual fund that has the same objective and strategies as the Feeder Fund. All investments are generally made at the level of the Master Portfolio. This structure is sometimes called a “master/feeder” structure. A Feeder Fund’s investment results will correspond directly to the investment results of the underlying Master Portfolio in which it invests. For simplicity, this SAI uses the term “Fund” to include both a Feeder Fund and its Master Portfolio.

In addition to containing information about the Funds, Part II of this SAI contains general information about all funds in the BlackRock-advised fund complex. Certain information contained herein may not be relevant to a particular Fund.

INVESTMENT RISKS AND CONSIDERATIONS

Set forth below are descriptions of some of the types of investments and investment strategies that one or more of the Funds may use, and the risks and considerations associated with those investments and investment strategies. Please see each Fund’s prospectuses (the “Prospectus”) and the “Investment Objective and Policies,” “Investment Objectives and Policies” or “Investment Strategies and Risks of the Fund” section, as applicable, of Part I of this SAI for further information on each Fund’s investment policies and risks. Information contained in this section about the risks and considerations associated with a Fund’s investments and/or investment strategies applies only to those Funds specifically identified in Part I of this SAI as making each type of investment or using each investment strategy (each, a “Covered Fund”). Information that does not apply to a Covered Fund does not form a part of that Covered Fund’s SAI and should not be relied on by investors in that Covered Fund. Only information that is clearly identified as applicable to a Covered Fund is considered to form a part of that Covered Fund’s SAI.

Asset-Backed Securities. Asset-backed securities are securities backed by home equity loans, installment sale contracts, credit card receivables or other assets. Asset-backed securities are “pass-through” securities, meaning that principal and interest payments — net of expenses — made by the borrower on the underlying assets (such as credit card receivables) are passed through to a Fund. The value of asset-backed securities, like that of traditional fixed-income securities, typically increases when interest rates fall and decreases when interest rates rise. However, asset-backed securities differ from traditional fixed-income securities because of their potential for prepayment. The price paid by a Fund for its asset-backed securities, the yield the Fund expects to receive from such securities and the average life of the securities are based on a number of factors, including the anticipated rate of prepayment of the underlying assets. In a period of declining interest rates, borrowers may prepay the underlying assets more quickly than anticipated, thereby reducing the yield to maturity and the average life of the asset-backed securities. Moreover, when a Fund reinvests the proceeds of a prepayment in these circumstances, it will likely receive a rate of interest that is lower than the rate on the security that was prepaid. To the extent that a Fund purchases asset backed securities at a premium, prepayments may result in a loss to the extent of the premium paid. If a Fund buys such securities at a discount, both scheduled payments and unscheduled prepayments will increase current and total returns and unscheduled prepayments will also accelerate the recognition of income which, when distributed to shareholders, will be taxable as ordinary income. In a period of rising interest rates, prepayments of the underlying assets may occur at a slower than expected rate, creating maturity extension risk. This particular risk may effectively change a security that was considered short- or intermediate-term at the time of purchase into a longer term security.

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Since the value of longer-term securities generally fluctuates more widely in response to changes in interest rates than does the value of shorter-term securities, maturity extension risk could increase the volatility of the Fund. When interest rates decline, the value of an asset-backed security with prepayment features may not increase as much as that of other fixed-income securities, and, as noted above, changes in market rates of interest may accelerate or retard prepayments and thus affect maturities.

Asset-Based Securities. Certain Funds may invest in debt, preferred or convertible securities, the principal amount, redemption terms or conversion terms of which are related to the market price of some natural resource asset such as gold bullion. These securities are referred to as “asset-based securities.” A Fund will purchase only asset-based securities that are rated, or are issued by issuers that have outstanding debt obligations rated, investment grade (for example, AAA, AA, A or BBB by S&P Global Ratings (“S&P”) or Fitch Ratings (“Fitch”), or Baa by Moody’s Investors Service, Inc. (“Moody’s”) or commercial paper rated A-1 by S&P or Prime-1 by Moody’s) or by issuers that the Manager has determined to be of similar creditworthiness. Obligations ranked in the fourth highest rating category, while considered “investment grade,” may have certain speculative characteristics and may be more likely to be downgraded than securities rated in the three highest rating categories. If an asset-based security is backed by a bank letter of credit or other similar facility, the Manager may take such backing into account in determining the creditworthiness of the issuer. While the market prices for an asset-based security and the related natural resource asset generally are expected to move in the same direction, there may not be perfect correlation in the two price movements. Asset-based securities may not be secured by a security interest in or claim on the underlying natural resource asset. The asset-based securities in which a Fund may invest may bear interest or pay preferred dividends at below market (or even relatively nominal) rates. Certain asset-based securities may be payable at maturity in cash at the stated principal amount or, at the option of the holder, directly in a stated amount of the asset to which it is related. In such instance, because no Fund presently intends to invest directly in natural resource assets, a Fund would sell the asset-based security in the secondary market, to the extent one exists, prior to maturity if the value of the stated amount of the asset exceeds the stated principal amount and thereby realize the appreciation in the underlying asset.

Precious Metal-Related Securities. A Fund may invest in the equity and other securities of companies that explore for, extract, process or deal in precious metals ( e.g. , gold, silver and platinum), and in asset-based securities indexed to the value of such metals. Such securities may be purchased when they are believed to be attractively priced in relation to the value of a company’s precious metal-related assets or when the values of precious metals are expected to benefit from inflationary pressure or other economic, political or financial uncertainty or instability. Based on historical experience, during periods of economic or financial instability the securities of companies involved in precious metals may be subject to extreme price fluctuations, reflecting the high volatility of precious metal prices during such periods. In addition, the instability of precious metal prices may result in volatile earnings of precious metal-related companies, which may, in turn, adversely affect the financial condition of such companies. The major producers of gold include the Republic of South Africa, Russia, Canada, the United States, Brazil and Australia. Sales of gold by Russia are largely unpredictable and often relate to political and economic considerations rather than to market forces. Economic, financial, social and political factors within South Africa may significantly affect South African gold production.

Borrowing and Leverage. Each Fund may borrow as a temporary measure for extraordinary or emergency purposes, including to meet redemptions or to settle securities transactions. Certain Funds will not purchase securities at any time when borrowings exceed 5% of their total assets, except (a) to honor prior commitments or (b) to exercise subscription rights when outstanding borrowings have been obtained exclusively for settlements of other securities transactions.

Certain Funds may also borrow in order to make investments, to the extent disclosed in such Fund’s Prospectus. The purchase of securities while borrowings are outstanding will have the effect of leveraging the Fund. Such leveraging increases the Fund’s exposure to capital risk, and borrowed funds are subject to interest costs that will reduce net income. The use of leverage by a Fund creates an opportunity for greater total return, but, at the same time, creates special risks. For example, leveraging may exaggerate changes in the net asset value (“NAV”) of Fund shares and in the yield on the Fund’s portfolio. Although the principal of such borrowings will be fixed, the Fund’s assets may change in value during the time the borrowings are outstanding. Borrowings will create interest expenses for the Fund that can exceed the income from the assets purchased with the borrowings. To the extent the income or capital appreciation derived from securities purchased with borrowed funds exceeds the interest the Fund will have to pay on the borrowings, the Fund’s return will be greater than if leverage had not been used. Conversely, if the income or capital appreciation from the securities purchased with such borrowed funds is not sufficient to cover the cost of borrowing, the return to the Fund will be less than if leverage had not been used and, therefore, the amount available for distribution to shareholders as dividends will be reduced. In the latter case, the Manager in its best judgment

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nevertheless may determine to maintain the Fund’s leveraged position if it expects that the benefits to the Fund’s shareholders of maintaining the leveraged position will outweigh the current reduced return.

Certain types of borrowings by a Fund may result in the Fund being subject to covenants in credit agreements relating to asset coverage, portfolio composition requirements and other matters. It is not anticipated that observance of such covenants would impede the Manager from managing a Fund’s portfolio in accordance with the Fund’s investment objectives and policies. However, a breach of any such covenants not cured within the specified cure period may result in acceleration of outstanding indebtedness and require the Fund to dispose of portfolio investments at a time when it may be disadvantageous to do so.

Each Fund may at times borrow from affiliates of the Manager, provided that the terms of such borrowings are no less favorable than those available from comparable sources of funds in the marketplace.

Cash Management. Generally, the Manager will employ futures and options on futures to provide liquidity necessary to meet anticipated redemptions or for day-to-day operating purposes. However, if considered appropriate in the opinion of the Manager, a portion of a Fund’s assets may be invested in certain types of instruments with remaining maturities of 397 days or less for liquidity purposes. Such instruments would consist of: (i) obligations of the U.S. Government, its agencies, instrumentalities, authorities or political subdivisions (“U.S. Government Securities”); (ii) other fixed-income securities rated Aa or higher by Moody’s or AA or higher by S&P or, if unrated, of comparable quality in the opinion of the Manager; (iii) commercial paper; (iv) bank obligations, including negotiable certificates of deposit, time deposits and bankers’ acceptances; and (v) repurchase agreements. At the time the Fund invests in commercial paper, bank obligations or repurchase agreements, the issuer or the issuer’s parent must have outstanding debt rated Aa or higher by Moody’s or AA or higher by S&P or outstanding commercial paper, bank obligations or other short-term obligations rated Prime-1 by Moody’s or A-1 by S&P; or, if no such ratings are available, the instrument must be of comparable quality in the opinion of the Manager. For more information on money market instruments, see “Money Market Securities” below.

Collateralized Debt Obligations. Certain Funds may invest in collateralized debt obligations (“CDOs”), which include collateralized bond obligations (“CBOs”), collateralized loan obligations (“CLOs”) and other similarly structured securities. CDOs are types of asset-backed securities. A CBO is ordinarily issued by a trust or other special purpose entity (“SPE”) and is typically backed by a diversified pool of fixed-income securities (which may include high risk, below investment grade securities) held by such issuer. A CLO is ordinarily issued by a trust or other SPE and is typically collateralized by a pool of loans, which may include, among others, domestic and non-U.S. senior secured loans, senior unsecured loans, and subordinate corporate loans, including loans that may be rated below investment grade or equivalent unrated loans, held by such issuer. Investments in a CLO organized outside of the United States may not be deemed to be foreign securities if the CLO is collateralized by a pool of loans, a substantial portion of which are U.S. loans. Although certain CDOs may benefit from credit enhancement in the form of a senior-subordinate structure, over-collateralization or bond insurance, such enhancement may not always be present, and may fail to protect a Fund against the risk of loss on default of the collateral. Certain CDO issuers may use derivatives contracts to create “synthetic” exposure to assets rather than holding such assets directly, which entails the risks of derivative instruments described elsewhere in this SAI. CDOs may charge management fees and administrative expenses, which are in addition to those of a Fund.

For both CBOs and CLOs, the cash flows from the SPE are split into two or more portions, called tranches, varying in risk and yield. The riskiest portion is the “equity” tranche, which bears the first loss from defaults from the bonds or loans in the SPE and serves to protect the other, more senior tranches from default (though such protection is not complete). Since it is partially protected from defaults, a senior tranche from a CBO or CLO typically has higher ratings and lower yields than its underlying securities, and may be rated investment grade. Despite the protection from the equity tranche, CBO or CLO tranches can experience substantial losses due to actual defaults, downgrades of the underlying collateral by rating agencies, forced liquidation of the collateral pool due to a failure of coverage tests, increased sensitivity to defaults due to collateral default and disappearance of protecting tranches, market anticipation of defaults as well as investor aversion to CBO or CLO securities as a class. Interest on certain tranches of a CDO may be paid in kind or deferred and capitalized (paid in the form of obligations of the same type rather than cash), which involves continued exposure to default risk with respect to such payments.

The risks of an investment in a CDO depend largely on the type of the collateral securities and the class of the CDO in which a Fund invests. Normally, CBOs, CLOs and other CDOs are privately offered and sold, and thus are not registered under the securities laws. However, an active dealer market may exist for CDOs, allowing a CDO to qualify for Rule 144A transactions. In addition to the normal risks associated with fixed-income securities and asset-backed securities generally discussed elsewhere in this SAI, CDOs carry additional risks including, but not limited to: (i) the possibility that distributions from collateral securities will not be adequate to make interest or other payments; (ii) the

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risk that the collateral may default or decline in value or be downgraded, if rated by a nationally recognized statistical rating organization (“NRSRO”); (iii) a Fund may invest in tranches of CDOs that are subordinate to other tranches; (iv) the structure and complexity of the transaction and the legal documents could lead to disputes among investors regarding the characterization of proceeds; (v) the investment return achieved by the Fund could be significantly different than those predicted by financial models; (vi) the lack of a readily available secondary market for CDOs; (vii) the risk of forced “fire sale” liquidation due to technical defaults such as coverage test failures; and (viii) the CDO’s manager may perform poorly.

Commercial Paper. Certain Funds may purchase commercial paper. Commercial paper purchasable by each Fund includes “Section 4(a)(2) paper,” a term that includes debt obligations issued in reliance on the “private placement” exemption from registration afforded by Section 4(a)(2) of the Securities Act. Section 4(a)(2) paper is restricted as to disposition under the Federal securities laws, and is frequently sold (and resold) to institutional investors such as the Fund through or with the assistance of investment dealers who make a market in the Section 4(a)(2) paper, thereby providing liquidity. Certain transactions in Section 4(a)(2) paper may qualify for the registration exemption provided in Rule 144A under the Securities Act. Most Funds can purchase commercial paper rated (at the time of purchase) “A-1” by S&P or “Prime-1” by Moody’s or when deemed advisable by a Fund’s Manager or sub adviser, “high quality” issues rated “A-2”, “Prime-2” or “F-2” by S&P, Moody’s or Fitch, respectively.

Commodity-Linked Derivative Instruments and Hybrid Instruments. Certain Funds seek to gain exposure to the commodities markets primarily through investments in hybrid instruments. Hybrid instruments are either equity or debt derivative securities with one or more commodity-dependent components that have payment features similar to a commodity futures contract, a commodity option contract, or a combination of both. Therefore, these instruments are “commodity-linked.” They are considered “hybrid” instruments because they have both commodity-like and security-like characteristics. Hybrid instruments are derivative instruments because at least part of their value is derived from the value of an underlying commodity, futures contract, index or other readily measurable economic variable.

The prices of commodity-linked derivative instruments may move in different directions than investments in traditional equity and debt securities when the value of those traditional securities is declining due to adverse economic conditions. As an example, during periods of rising inflation, debt securities have historically tended to decline in value due to the general increase in prevailing interest rates. Conversely, during those same periods of rising inflation, the prices of certain commodities, such as oil and metals, have historically tended to increase. Of course, there cannot be any guarantee that these investments will perform in that manner in the future, and at certain times the price movements of commodity-linked instruments have been parallel to those of debt and equity securities. Commodities have historically tended to increase and decrease in value during different parts of the business cycle than financial assets. Nevertheless, at various times, commodities prices may move in tandem with the prices of financial assets and thus may not provide overall portfolio diversification benefits. Under favorable economic conditions, the Fund’s investments may be expected to under-perform an investment in traditional securities. Over the long term, the returns on the Fund’s investments are expected to exhibit low or negative correlation with stocks and bonds.

Qualifying Hybrid Instruments. Certain Funds may invest in hybrid instruments that qualify for exclusion from regulation under the Commodity Exchange Act and the regulations adopted thereunder. A hybrid instrument that qualifies for this exclusion from regulation must be “predominantly a security.” A hybrid instrument is considered to be predominantly a security if (a) the issuer of the hybrid instrument receives payment in full of the purchase price of the hybrid instrument, substantially contemporaneously with delivery of the hybrid instrument; (b) the purchaser or holder of the hybrid instrument is not required to make any payment to the issuer in addition to the purchase price paid under subparagraph (a), whether as margin, settlement payment, or otherwise, during the life of the hybrid instrument or at maturity; (c) the issuer of the hybrid instrument is not subject by the terms of the instrument to mark-to-market margining requirements; and (d) the hybrid instrument is not marketed as a contract of sale of a commodity for future delivery (or option on such a contract) subject to applicable provisions of the Commodity Exchange Act. Hybrid instruments may be principal protected, partially protected, or offer no principal protection. A principal protected hybrid instrument means that the issuer will pay, at a minimum, the par value of the note at maturity. Therefore, if the commodity value to which the hybrid instrument is linked declines over the life of the note, the Fund will receive at maturity the face or stated value of the note. With a principal protected hybrid instrument, the Fund will receive at maturity the greater of the par value of the note or the increase in its value based on the underlying commodity or index. This protection is, in effect, an option whose value is subject to the volatility and price level of the underlying commodity. The Manager’s decision whether to use principal protection depends in part on the cost of the protection. In addition, the protection feature depends upon the ability of the issuer to meet its obligation to buy back the security, and, therefore, depends on the creditworthiness of the issuer. With full principal protection,

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the Fund will receive at maturity of the hybrid instrument either the stated par value of the hybrid instrument, or potentially, an amount greater than the stated par value if the underlying commodity, index, futures contract or economic variable to which the hybrid instrument is linked has increased in value. Partially protected hybrid instruments may suffer some loss of principal if the underlying commodity, index, futures contract or economic variable to which the hybrid instrument is linked declines in value during the term of the hybrid instrument. However, partially protected hybrid instruments have a specified limit as to the amount of principal that they may lose.

Hybrid Instruments Without Principal Protection. Certain Funds may invest in hybrid instruments that offer no principal protection. At maturity, there is a risk that the underlying commodity price, futures contract, index or other economic variable may have declined sufficiently in value such that some or all of the face value of the hybrid instrument might not be returned. The Manager, at its discretion, may invest in a partially protected principal structured note or a note without principal protection. In deciding to purchase a note without principal protection, the Manager may consider, among other things, the expected performance of the underlying commodity futures contract, index or other economic variable over the term of the note, the cost of the note, and any other economic factors that the Manager believes are relevant.

Limitations on Leverage. Some of the hybrid instruments in which a Fund may invest may involve leverage. To avoid being subject to undue leverage risk, a Fund will seek to limit the amount of economic leverage it has under any one hybrid instrument that it buys and the leverage of the Fund’s overall portfolio. A Fund will not invest in a hybrid instrument if, at the time of purchase: (i) that instrument’s “leverage ratio” exceeds 300% of the price increase in the underlying commodity, futures contract, index or other economic variable or (ii) the Fund’s “portfolio leverage ratio” exceeds 150%, measured at the time of purchase. “Leverage ratio” is the expected increase in the value of a hybrid instrument, assuming a one percent price increase in the underlying commodity, futures contract, index or other economic factor. In other words, for a hybrid instrument with a leverage factor of 150%, a 1% gain in the underlying economic variable would be expected to result in a 1.5% gain in value for the hybrid instrument. Conversely, a hybrid instrument with a leverage factor of 150% would suffer a 1.5% loss if the underlying economic variable lost 1% of its value. “Portfolio leverage ratio” is defined as the average (mean) leverage ratio of all instruments in a Fund’s portfolio, weighted by the market values of such instruments or, in the case of futures contracts, their notional values. A Fund may at times or from time to time decide not to use leverage in its investments or use less leverage than may otherwise be allowable.

Counterpar ty Risk. A significant risk of hybrid instruments is counterparty risk. Unlike exchange-traded futures and options, which are standard contracts, hybrid instruments are customized securities, tailor-made by a specific issuer. With a listed futures or options contract, an investor’s counterparty is the exchange clearinghouse. Exchange clearinghouses are capitalized by the exchange members and typically have high investment grade ratings ( e.g. , ratings of AAA or AA by S&P). Therefore, the risk is small that an exchange clearinghouse might be unable to meet its obligations at maturity. However, with a hybrid instrument, a Fund will take on the counterparty credit risk of the issuer. That is, at maturity of the hybrid instrument, there is a risk that the issuer may be unable to perform its obligations under the structured note.

Convertible Securities. A convertible security is a bond, debenture, note, preferred stock or other security that may be converted into or exchanged for a prescribed amount of common stock or other equity security of the same or a different issuer within a particular period of time at a specified price or formula. A convertible security entitles the holder to receive interest paid or accrued on debt or the dividend paid on preferred stock until the convertible security matures or is redeemed, converted or exchanged. Before conversion, convertible securities have characteristics similar to nonconvertible income securities in that they ordinarily provide a stable stream of income with generally higher yields than those of common stocks of the same or similar issuers, but lower yields than comparable nonconvertible securities. The value of a convertible security is influenced by changes in interest rates, with investment value declining as interest rates increase and increasing as interest rates decline. The credit standing of the issuer and other factors also may have an effect on the convertible security’s investment value. Convertible securities rank senior to common stock in a corporation’s capital structure but are usually subordinated to comparable nonconvertible securities. Convertible securities may be subject to redemption at the option of the issuer at a price established in the convertible security’s governing instrument.

The characteristics of convertible securities make them potentially attractive investments for an investment company seeking a high total return from capital appreciation and investment income. These characteristics include the potential for capital appreciation as the value of the underlying common stock increases, the relatively high yield received from dividend or interest payments as compared to common stock dividends and decreased risks of decline in value relative to the underlying common stock due to their fixed-income nature. As a result of the conversion

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feature, however, the interest rate or dividend preference on a convertible security is generally less than would be the case if the securities were issued in nonconvertible form.

In analyzing convertible securities, the Manager will consider both the yield on the convertible security relative to its credit quality and the potential capital appreciation that is offered by the underlying common stock, among other things.

Convertible securities are issued and traded in a number of securities markets. Even in cases where a substantial portion of the convertible securities held by a Fund are denominated in U.S. dollars, the underlying equity securities may be quoted in the currency of the country where the issuer is domiciled. As a result, fluctuations in the exchange rate between the currency in which the debt security is denominated and the currency in which the share price is quoted will affect the value of the convertible security. With respect to convertible securities denominated in a currency different from that of the underlying equity securities, the conversion price may be based on a fixed exchange rate established at the time the security is issued, which may increase the effects of currency risk. As described below, a Fund is authorized to enter into foreign currency hedging transactions in which it may seek to reduce the effect of exchange rate fluctuations.

Apart from currency considerations, the value of convertible securities is influenced by both the yield on nonconvertible securities of comparable issuers and by the value of the underlying common stock. The value of a convertible security viewed without regard to its conversion feature ( i.e. , strictly on the basis of its yield) is sometimes referred to as its “investment value.” To the extent interest rates change, the investment value of the convertible security typically will fluctuate. At the same time, however, the value of the convertible security will be influenced by its “conversion value,” which is the market value of the underlying common stock that would be obtained if the convertible security were converted. Conversion value fluctuates directly with the price of the underlying common stock. If the conversion value of a convertible security is substantially below its investment value, the price of the convertible security is governed principally by its investment value. To the extent the conversion value of a convertible security increases to a point that approximates or exceeds its investment value, the price of the convertible security will be influenced principally by its conversion value. A convertible security will sell at a premium over the conversion value to the extent investors place value on the right to acquire the underlying common stock while holding a fixed-income security. The yield and conversion premium of convertible securities issued in Japan and the Euromarket are frequently determined at levels that cause the conversion value to affect their market value more than the securities’ investment value.

Holders of convertible securities generally have a claim on the assets of the issuer prior to the common stockholders but may be subordinated to other debt securities of the same issuer. A convertible security may be subject to redemption at the option of the issuer at a price established in a charter provision, indenture or other governing instrument pursuant to which the convertible security was issued. If a convertible security held by a Fund is called for redemption, the Fund will be required to redeem the security, convert it into the underlying common stock or sell it to a third party. Certain convertible debt securities may provide a put option to the holder, which entitles the holder to cause the security to be redeemed by the issuer at a premium over the stated principal amount of the debt security under certain circumstances.

A Fund may also invest in synthetic convertible securities. Synthetic convertible securities may include either Cash-Settled Convertibles or Manufactured Convertibles. “Cash-Settled Convertibles” are instruments that are created by the issuer and have the economic characteristics of traditional convertible securities but may not actually permit conversion into the underlying equity securities in all circumstances. As an example, a private company may issue a Cash-Settled Convertible that is convertible into common stock only if the company successfully completes a public offering of its common stock prior to maturity and otherwise pays a cash amount to reflect any equity appreciation. “Manufactured Convertibles” are created by the Manager or another party by combining separate securities that possess one of the two principal characteristics of a convertible security, i.e. , fixed-income (“fixed income component”) or a right to acquire equity securities (“convertibility component”). The fixed-income component is achieved by investing in nonconvertible fixed-income securities, such as nonconvertible bonds, preferred stocks and money market instruments. The convertibility component is achieved by investing in call options, warrants, or other securities with equity conversion features (“equity features”) granting the holder the right to purchase a specified quantity of the underlying stocks within a specified period of time at a specified price or, in the case of a stock index option, the right to receive a cash payment based on the value of the underlying stock index.

A Manufactured Convertible differs from traditional convertible securities in several respects. Unlike a traditional convertible security, which is a single security that has a unitary market value, a Manufactured Convertible is

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comprised of two or more separate securities, each with its own market value. Therefore, the total “market value” of such a Manufactured Convertible is the sum of the values of its fixed-income component and its convertibility component.

More flexibility is possible in the creation of a Manufactured Convertible than in the purchase of a traditional convertible security. Because many corporations have not issued convertible securities, the Manager may combine a fixed-income instrument and an equity feature with respect to the stock of the issuer of the fixed-income instrument to create a synthetic convertible security otherwise unavailable in the market. The Manager may also combine a fixed-income instrument of an issuer with an equity feature with respect to the stock of a different issuer when the Manager believes such a Manufactured Convertible would better promote a Fund’s objective than alternative investments. For example, the Manager may combine an equity feature with respect to an issuer’s stock with a fixed income security of a different issuer in the same industry to diversify the Fund’s credit exposure, or with a U.S. Treasury instrument to create a Manufactured Convertible with a higher credit profile than a traditional convertible security issued by that issuer. A Manufactured Convertible also is a more flexible investment in that its two components may be purchased separately and, upon purchasing the separate securities, “combined” to create a Manufactured Convertible. For example, the Fund may purchase a warrant for eventual inclusion in a Manufactured Convertible while postponing the purchase of a suitable bond to pair with the warrant pending development of more favorable market conditions.

The value of a Manufactured Convertible may respond to certain market fluctuations differently from a traditional convertible security with similar characteristics. For example, in the event a Fund created a Manufactured Convertible by combining a short-term U.S. Treasury instrument and a call option on a stock, the Manufactured Convertible would be expected to outperform a traditional convertible of similar maturity that is convertible into that stock during periods when Treasury instruments outperform corporate fixed-income securities and underperform during periods when corporate fixed-income securities outperform Treasury instruments.

Corporate Loans. Certain Funds may invest in corporate loans. Corporate loans are generally non-investment grade floating rate instruments. Usually, they are freely callable at the issuer’s option. Certain Funds may invest in fixed and floating rate loans (“Loans”) arranged through private negotiations between a corporate borrower or a foreign sovereign entity and one or more financial institutions or institutional investors (“Lenders”). A Fund may invest in such Loans in the form of participations in Loans (“Participations”) and assignments of all or a portion of Loans from third parties (“Assignments”). A Fund considers these investments to be investments in debt securities for purposes of its investment policies. Participations typically will result in the Fund having a contractual relationship only with the Lender, not with the borrower. The Fund will have the right to receive payments of principal, interest and any fees to which it is entitled only from the Lender selling the Participation and only upon receipt by the Lender of the payments from the borrower. In connection with purchasing Participations, the Fund generally will have no right to enforce compliance by the borrower with the terms of the loan agreement relating to the Loans, nor any rights of set off against the borrower, and the Fund may not benefit directly from any collateral supporting the Loan in which it has purchased the Participation. As a result, the Fund will assume the credit risk of both the borrower and the Lender that is selling the Participation. In the event of the insolvency of the Lender selling the Participation, the Fund may be treated as a general creditor of the Lender and may not benefit from any set-off between the Lender and the borrower. The Fund will acquire Participations only if the Lender interpositioned between the Fund and the borrower is determined by the Fund’s manager to be creditworthy. When the Fund purchases Assignments from Lenders, the Fund will acquire direct rights against the borrower on the Loan, and will not have exposure to a counterparty’s credit risk. The Funds may enter into Participations and Assignments on a forward commitment or “when-issued” basis, whereby a Fund would agree to purchase a Participation or Assignment at set terms in the future. For more information on forward commitments and when-issued securities, see “When-Issued Securities, Delayed Delivery Securities and Forward Commitments” below.

A Fund may have difficulty disposing of Assignments and Participations. In certain cases, the market for such instruments may lack sufficient liquidity, and therefore the Fund anticipates that in such cases such instruments could be sold only to a limited number of institutional investors. The lack of a sufficiently liquid secondary market may have an adverse impact on the value of such instruments and on the Fund’s ability to dispose of particular Assignments or Participations in response to a specific economic event, such as deterioration in the creditworthiness of the borrower.

Leading financial institutions often act as agent for a broader group of Lenders, generally referred to as a syndicate. The syndicate’s agent arranges the loans, holds collateral and accepts payments of principal and interest. If the agent develops financial problems, a Fund may not recover its investment or recovery may be delayed.

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The Loans in which the Fund may invest are subject to the risk of loss of principal and income. Although borrowers frequently provide collateral to secure repayment of these obligations they do not always do so. If they do provide collateral, the value of the collateral may not completely cover the borrower’s obligations at the time of a default. If a borrower files for protection from its creditors under the U.S. bankruptcy laws, these laws may limit a Fund’s rights to its collateral. In addition, the value of collateral may erode during a bankruptcy case. In the event of a bankruptcy, the holder of a Loan may not recover its principal, may experience a long delay in recovering its investment and may not receive interest during the delay.

Transactions in corporate loans may settle on a delayed basis. As a result, the proceeds from the sale of corporate loans may not be readily available to make additional investments or to meet a Fund’s redemption obligations. To the extent the extended settlement process gives rise to short-term liquidity needs, a Fund may hold additional cash, sell investments or temporarily borrow from banks and other lenders.

In certain circumstances, Loans may not be deemed to be securities under certain federal securities laws. Therefore, in the event of fraud or misrepresentation by a borrower or an arranger, Lenders and purchasers of interests in Loans, such as the Funds, may not have the protection of the anti-fraud provisions of the federal securities laws as would otherwise be available for bonds or stocks. Instead, in such cases, parties generally would rely on the contractual provisions in the Loan agreement itself and common-law fraud protections under applicable state law.

Direct Lending. The Fund may act as the originator for direct loans and engage in direct lending. Direct loans between the Fund and a borrower may not be administered by an underwriter or agent bank. The Fund may provide financing to commercial borrowers directly or through companies acquired (or created) and owned by or otherwise affiliated with the Fund. The terms of the direct loans are negotiated with borrowers in private transactions. Furthermore, a direct loan may be secured or unsecured.

In determining whether to make a direct loan, the Fund will rely primarily upon the creditworthiness of the borrower and/or any collateral for payment of interest and repayment of principal. The risks associated with direct loans are substantially similar to those associated with investing in corporate loans. In making a direct loan, the Fund is exposed to the risk that the borrower may default or become insolvent and, consequently, that the Fund will lose money on the loan. Furthermore, direct loans may subject the Fund to liquidity and interest rate risk and certain direct loans may be deemed illiquid. Direct loans are not publicly traded and may not have a secondary market. The lack of a secondary market for direct loans may have an adverse impact on the ability of the Fund to dispose of a direct loan and/or to value the direct loan.

When engaging in direct lending, the Fund’s performance may depend, in part, on the ability of the Fund to originate loans on advantageous terms. In originating loans, the Fund will compete with a broad spectrum of lenders. Increased competition for, or a diminishment in the available supply of, qualifying loans could result in lower yields on such loans, which could reduce Fund performance.

As part of its lending activities, the Fund may originate loans to companies that are experiencing significant financial or business difficulties, including companies involved in bankruptcy or other reorganization and liquidation proceedings. Although the terms of such financing may result in significant financial returns to the Fund, they involve a substantial degree of risk. The level of analytical sophistication, both financial and legal, necessary for successful financing to companies experiencing significant business and financial difficulties is unusually high.

Credit Linked Securities. Among the income producing securities in which a Fund may invest are credit linked securities, which are issued by a limited purpose trust or other vehicle that, in turn, invests in a derivative instrument or basket of derivative instruments, such as credit default swaps, interest rate swaps and other securities, in order to provide exposure to certain fixed-income markets. For instance, a Fund may invest in credit linked securities as a cash management tool in order to gain exposure to a certain market and/or to remain fully invested when more traditional income producing securities are not available.

Like an investment in a bond, investments in these credit linked securities represent the right to receive periodic income payments (in the form of distributions) and payment of principal at the end of the term of the security.

However, these payments are conditioned on the issuer’s receipt of payments from, and the issuer’s potential obligations to, the counterparties to the derivative instruments and other securities in which the issuer invests. For instance, the issuer may sell one or more credit default swaps, under which the issuer would receive a stream of payments over the term of the swap agreements provided that no event of default has occurred with respect to the referenced debt obligation upon which the swap is based. If a default occurs, the stream of payments may stop and the issuer would be obligated to pay the counterparty the par (or other agreed upon value) of the referenced debt

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obligation. This, in turn, would reduce the amount of income and principal that a Fund would receive. A Fund’s investments in these instruments are indirectly subject to the risks associated with derivative instruments, including, among others, credit risk, default or similar event risk, counterparty risk, interest rate risk, leverage risk and management risk. It is also expected that the securities will be exempt from registration under the Securities Act. Accordingly, there may be no established trading market for the securities and they may constitute illiquid investments.

Cyber Security Issues. With the increased use of technologies such as the Internet to conduct business, each Fund, Authorized Participants, service providers and the relevant listing exchange are susceptible to operational, information security and related risks. In general, cyber incidents can result from deliberate attacks or unintentional events. Cyber attacks include, but are not limited to, gaining unauthorized access to digital systems ( e.g. , through “hacking” or malicious software coding) for purposes of misappropriating assets or sensitive information, corrupting data, or causing operational disruption. Cyber attacks may also be carried out in a manner that does not require gaining unauthorized access, such as causing denial-of-service attacks on websites ( i.e. , efforts to make network services unavailable to intended users). Cyber security failures or breaches by a Fund’s adviser, sub-adviser(s) and other service providers (including, but not limited to, index providers, Fund accountants, custodians, transfer agents and administrators), market makers, Authorized Participants or the issuers of securities in which the Funds invest, have the ability to cause disruptions and impact business operations, potentially resulting in financial losses, interference with a Fund’s ability to calculate its NAV, disclosure of confidential trading information, impediments to trading, submission of erroneous trades or erroneous creation or redemption orders, the inability of Fund shareholders to transact business, violations of applicable privacy and other laws, regulatory fines, penalties, reputational damage, reimbursement or other compensation costs, or additional compliance costs. In addition, substantial costs may be incurred in order to prevent any cyber incidents in the future. While the Funds have established business continuity plans in the event of, and risk management systems to prevent, such cyber attacks, there are inherent limitations in such plans and systems including the possibility that certain risks have not been identified. Furthermore, the Funds cannot control the cyber security plans and systems put in place by service providers to the Funds and issuers in which the Funds invest, market makers or Authorized Participants. The Funds and their shareholders could be negatively impacted as a result.

Debt Securities. Debt securities, such as bonds, involve credit risk. This is the risk that the issuer will not make timely payments of principal and interest. The degree of credit risk depends on the issuer’s financial condition and on the terms of the debt securities. Changes in an issuer’s credit rating or the market’s perception of an issuer’s creditworthiness may also affect the value of a Fund’s investment in that issuer. Credit risk is reduced to the extent a Fund limits its debt investments to U.S. Government Securities.

All debt securities, however, are subject to interest rate risk. This is the risk that the value of the security may fall when interest rates rise. If interest rates move sharply in a manner not anticipated by Fund management, a Fund’s investments in debt securities could be adversely affected and the Fund could lose money. In general, the market price of debt securities with longer maturities will go up or down more in response to changes in interest rates than will the market price of shorter-term debt securities.

During periods of rising interest rates, the average life of certain fixed-income securities is extended because of slower than expected principal payments. This may lock in a below-market interest rate and extend the duration of these fixed-income securities, especially mortgage-related securities, making them more sensitive to changes in interest rates. As a result, in a period of rising interest rates, these securities may exhibit additional volatility and lose value. This is known as extension risk.

The value of fixed-income securities in the Funds can be expected to vary inversely with changes in prevailing interest rates. Fixed-income securities with longer maturities, which tend to produce higher yields, are subject to potentially greater capital appreciation and depreciation than securities with shorter maturities. The Funds are not restricted to any maximum or minimum time to maturity in purchasing individual portfolio securities, and the average maturity of a Fund’s assets will vary.

Floating and Variable Rate Securities . Certain Funds may invest in debt instruments that pay a variable coupon rate. Securities with floating or variable interest rates can be less sensitive to interest rate changes than securities with fixed interest rates, but may decline in value if their interest rates do not rise as much, or as quickly, as interest rates in general. Conversely, floating rate securities will not generally increase in value if interest rates decline. The impact of interest rate changes on floating rate investments is typically mitigated by the periodic interest rate reset of the investments. Benchmark interest rates used for floating and variable rate securities may not accurately track market interest rates.

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Inflation-Indexed Bonds. Certain Funds may invest in inflation-indexed bonds, which are fixed-income securities or other instruments whose principal value is periodically adjusted according to the rate of inflation. Two structures are common. The U.S. Treasury and some other issuers use a structure that accrues inflation into the principal value of the bond. Most other issuers pay out the Consumer Price Index (“CPI”) accruals as part of a semi-annual coupon.

Inflation-indexed securities issued by the U.S. Treasury have maturities of five, ten or thirty years, although it is possible that securities with other maturities will be issued in the future. The U.S. Treasury securities pay interest on a semi-annual basis, equal to a fixed percentage of the inflation-adjusted principal amount. For example, if a Fund purchased an inflation-indexed bond with a par value of $1,000 and a 3% real rate of return coupon (payable 1.5% semi-annually), and inflation over the first six months was 1%, the mid-year par value of the bond would be $1,010 and the first semi-annual interest payment would be $15.15 ($1,010 times 1.5%). If inflation during the second half of the year resulted in the whole year’s inflation equaling 3%, the end-of-year par value of the bond would be $1,030 and the second semi-annual interest payment would be $15.45 ($1,030 times 1.5%).

If the periodic adjustment rate measuring inflation falls, the principal value of inflation-indexed bonds will be adjusted downward, and, consequently, the interest payable on these securities (calculated with respect to a smaller principal amount) will be reduced. Repayment of the original bond principal upon maturity (as adjusted for inflation) is guaranteed in the case of U.S. Treasury inflation-indexed bonds, even during a period of deflation. However, the current market value of the bonds is not guaranteed, and will fluctuate. Certain Funds may also invest in other inflation related bonds which may or may not provide a similar guarantee. If a guarantee of principal is not provided, the adjusted principal value of the bond repaid at maturity may be less than the original principal. In addition, if the Fund purchases inflation-indexed bonds offered by foreign issuers, the rate of inflation measured by the foreign inflation index may not be correlated to the rate of inflation in the United States.

The value of inflation-indexed bonds is expected to change in response to changes in real interest rates. Real interest rates, in turn, are tied to the relationship between nominal interest rates and the rate of inflation. Therefore, if inflation were to rise at a faster rate than nominal interest rates, real interest rates might decline, leading to an increase in value of inflation-indexed bonds. In contrast, if nominal interest rates increased at a faster rate than inflation, real interest rates might rise, leading to a decrease in value of inflation-indexed bonds. There can be no assurance, however, that the value of inflation-indexed bonds will be directly correlated to changes in interest rates.

While these securities are expected to be protected from long-term inflationary trends, short-term increases in inflation may lead to a decline in value. If interest rates rise due to reasons other than inflation (for example, due to changes in currency exchange rates), investors in these securities may not be protected to the extent that the increase is not reflected in the bond’s inflation measure.

In general, the measure used to determine the periodic adjustment of U.S. inflation-indexed bonds is the Consumer Price Index for Urban Consumers (“CPI-U”), which is calculated monthly by the U.S. Bureau of Labor Statistics. The CPI-U is a measurement of changes in the cost of living, made up of components such as housing, food, transportation and energy. Inflation-indexed bonds issued by a foreign government are generally adjusted to reflect a comparable inflation index, calculated by that government. There can be no assurance that the CPI-U or any foreign inflation index will accurately measure the real rate of inflation in the prices of goods and services. Moreover, there can be no assurance that the rate of inflation in a foreign country will be correlated to the rate of inflation in the United States.

Any increase in the principal amount of an inflation-indexed bond will be considered taxable ordinary income, even though investors do not receive their principal until maturity.

Investment Grade Debt Obligations. Certain Funds may invest in “investment grade securities,” which are securities rated in the four highest rating categories of an NRSRO or deemed to be of equivalent quality by a Fund’s Manager. Certain Funds may invest in debt securities rated Aaa by Moody’s or AAA by S&P. It should be noted that debt obligations rated in the lowest of the top four ratings ( i.e. , “Baa” by Moody’s or “BBB” by S&P) are considered to have some speculative characteristics and are more sensitive to economic change than higher rated securities. If an investment grade security of a Fund is subsequently downgraded below investment grade, the Fund’s Manager will consider such an event in determining whether the Fund should continue to hold the security. Subject to its investment strategies, there is no limit on the amount of such downgraded securities a Fund may hold.

See Appendix A to this SAI for a description of applicable securities ratings.

High Yield Investments (“Junk Bonds”).

Non-investment grade or “high yield” fixed-income or convertible securities commonly known to investors as “junk bonds” are debt securities that are rated below investment grade by the major rating agencies or are securities

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that Fund management believes are of comparable quality. While generally providing greater income and opportunity for gain, non-investment grade debt securities may be subject to greater risks than securities which have higher credit ratings, including a high risk of default, and their yields will fluctuate over time. High yield securities will generally be in the lower rating categories of recognized rating agencies (rated “Ba” or lower by Moody’s or “BB” or lower by S&P) or will be non-rated. The credit rating of a high yield security does not necessarily address its market value risk, and ratings may from time to time change, positively or negatively, to reflect developments regarding the issuer’s financial condition. High yield securities are considered to be speculative with respect to the capacity of the issuer to timely repay principal and pay interest or dividends in accordance with the terms of the obligation and may have more credit risk than higher rated securities.

The major risks in junk bond investments include the following:

• Junk bonds may be issued by less creditworthy companies. These securities are vulnerable to adverse changes in the issuer’s industry and to general economic conditions. Issuers of junk bonds may be unable to meet their interest or principal payment obligations because of an economic downturn, specific issuer developments or the unavailability of additional financing.

• The issuers of junk bonds may have a larger amount of outstanding debt relative to their assets than issuers of investment grade bonds. If the issuer experiences financial stress, it may be unable to meet its debt obligations. The issuer’s ability to pay its debt obligations also may be lessened by specific issuer developments, or the unavailability of additional financing. Issuers of high yield securities are often in the growth stage of their development and/or involved in a reorganization or takeover.

• Junk bonds are frequently ranked junior to claims by other creditors. If the issuer cannot meet its obligations, the senior obligations are generally paid off before the junior obligations, which will potentially limit a Fund’s ability to fully recover principal or to receive interest payments when senior securities are in default. Thus, investors in high yield securities have a lower degree of protection with respect to principal and interest payments than do investors in higher rated securities.

• Junk bonds frequently have redemption features that permit an issuer to repurchase the security from a Fund before it matures. If an issuer redeems the junk bonds, a Fund may have to invest the proceeds in bonds with lower yields and may lose income.

• Prices of junk bonds are subject to extreme price fluctuations. Negative economic developments may have a greater impact on the prices of junk bonds than on those of other higher rated fixed-income securities.

• Junk bonds may be less liquid than higher rated fixed-income securities even under normal economic conditions. Under certain economic and/or market conditions, a Fund may have difficulty disposing of certain high yield securities due to the limited number of investors in that sector of the market. There are fewer dealers in the junk bond market, and there may be significant differences in the prices quoted for junk bonds by the dealers, and such quotations may not be the actual prices available for a purchase or sale. Because junk bonds are less liquid than higher rated bonds, judgment may play a greater role in valuing certain of a Fund’s portfolio securities than in the case of securities trading in a more liquid market.

• The secondary markets for high yield securities are not as liquid as the secondary markets for higher rated securities. The secondary markets for high yield securities are concentrated in relatively few market makers and participants in the markets are mostly institutional investors, including insurance companies, banks, other financial institutions and mutual funds. In addition, the trading volume for high yield securities is generally lower than that for higher rated securities and the secondary markets could contract under adverse market or economic conditions independent of any specific adverse changes in the condition of a particular issuer. Under certain economic and/or market conditions, a Fund may have difficulty disposing of certain high yield securities due to the limited number of investors in that sector of the market. An illiquid secondary market may adversely affect the market price of the high yield security, which may result in increased difficulty selling the particular issue and obtaining accurate market quotations on the issue when valuing a Fund’s assets. Market quotations on high yield securities are available only from a limited number of dealers, and such quotations may not be the actual prices available for a purchase or sale. When the secondary market for high yield securities becomes more illiquid, or in the absence of readily available market quotations for such securities, the relative lack of

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        "id": "4dfd7478-fccf-4d52-855b-c8b56e4ed9ce",
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        "text": "BlackRock Advantage SMID Cap Fund, Inc."
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        "id": "029d5a5d-8326-4220-b5a8-29b335c8162c",
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        "id": "35236123-5cc7-4d92-a691-d309e0d2b4e3",
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        "text": "BlackRock Emerging Markets Fund, Inc."
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          "y": 212
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        "id": "a509a929-4986-463e-8937-6b69639a97bd",
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        "text": "BlackRock Equity Dividend Fund"
      },
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          "y": 227
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        "id": "4bdea9a8-635a-433c-8e14-d69fe38c8046",
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          "x": 116,
          "y": 274
        },
        "id": "ce2e9342-5d71-4419-802f-301a297ca03b",
        "page_number": 1,
        "text": "BlackRock Funds III"
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        "id": "0c8c8dde-95b5-4cc6-834e-c763cae6f85e",
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        "text": "BlackRock Funds V"
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        "text": "BlackRock Global Allocation Fund, Inc."
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        "text": "BlackRock Large Cap Focus Value Fund, Inc."
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          "y": 134
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        "text": "BlackRock Large Cap Series Funds, Inc."
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      {
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        "text": "BlackRock Municipal Bond Fund, Inc."
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        "text": "BlackRock Municipal Series Trust"
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        "text": "BlackRock Natural Resources Trust"
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        "id": "2c40129d-fda1-4afa-9cea-1ba00501dd31",
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        "text": "BlackRock Unconstrained Equity Fund"
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        "text": "BlackRock Variable Series Funds II, Inc."
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        "page_number": 1,
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        "text": "Organizations Receiving Additional Payments\u201d in Part II, or in the section entitled \u201cMiscellaneous -"
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