Sec Form 3 Filing - Ogunlesi Adebayo O. @ BlackRock, Inc. - 2024-11-19

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Ogunlesi Adebayo O. 2. Issuer Name and Ticker or Trading Symbol BlackRock, Inc. [ BLK] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 50 HUDSON YARDS 3. Date of Earliest Transaction (MM/DD/YY) 11/19/2024 (Street) NEW YORK, NY10001 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 1,366,957 I See footnote ( 1 ) Common Stock 455,652 I See footnotes ( 2 ) ( 3 ) Common Stock 317 I By Raynham I LLC ( 4 ) Common Stock 101 I By Ogunlesi 2011 Investment Trust ( 5 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Deriv ative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Ogunlesi Adebayo O. 50 HUDSON YARDS NEW YORK, NY10001 X Signatures /s/ R. Andrew Dickson III as Attorney-in-Fact for Adebayo O. Ogunlesi 11/22/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The reported securities are temporarily being held by New Global Infrastructure Management Participation 1, L.P. and Global Infrastructure Management Participation 2, LLC for the benefit of the reporting person and will be distributed to the reporting person following the expiration of the applicable waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976 ("HSR Waiting Period"). ( 2 )The reported securities are temporarily being held by New Global Infrastructure Management Participation 1, L.P. and Global Infrastructure Management Participation 2, LLC for the benefit of Ogunlesi Investment Partners LLC, and will be distributed to Ogunlesi Investment Partners LLC following the expiration of the applicable HSR Waiting Period. ( 3 )The reporting person and his spouse are the sole members of Ogunlesi Investment Partners LLC. ( 4 )Represents shares of common stock held by Raynham I LLC. The reporting person and his spouse are the sole members of Raynham I LLC. ( 5 )Represents shares of common stock held by Ogunlesi 2011 Investment Trust, of which the reporting person serves as the trustee.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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