Sec Form 4 Filing - FINK LAURENCE @ BlackRock Inc. - 2024-02-28

FORM 4 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 FINK LAURENCE 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 X __ Officer (give title below) _____ Other (specify below) Chairman and CEO (Last) (First) (Middle) BLACKROCK, INC., 50 HUDSON YARDS 3. Date of Earliest Transaction (MM/DD/YY) 02/28/2024 (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 Shares Of Common Stock (par Value $0.01 Per Share) 02/28/2024 S 5,108 D $ 807.5411 ( 1 ) 440,016 ( 2 ) D Shares Of Common Stock (par Value $0.01 Per Share) 02/28/2024 S 7,215 D $ 808.4575 ( 3 ) 432,801 ( 2 ) D Shares Of Common Stock (par Value $0.01 Per Share) 02/28/2024 S 4,598 D $ 809.4628 ( 4 ) 428,203 ( 2 ) D Shares Of Common Stock (par Value $0.01 Per Share) 02/28/2024 S 2,748 D $ 810.817 ( 5 ) 425,455 ( 2 ) D Shares Of Common Stock (par Value $0.01 Per Share) 02/28/2024 S 9,721 D $ 811.7447 ( 6 ) 415,734 ( 2 ) D Shares Of Common Stock (par Value $0.01 Per Share) 02/28/2024 S 1,588 D $ 812.7363 ( 7 ) 414,146 ( 2 ) D

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 Derivative 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 FINK LAURENCE BLACKROCK, INC. 50 HUDSON YARDS NEW YORK, NY10001 X Chairman and CEO Signatures /s/ R. Andrew Dickson III as Attorney-in-Fact for Laurence Fink 03/01/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )This transaction was executed in multiple trades at prices ranging from $806.99 to $807.98. The price reported represents the weighted average sale price of these trades. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the shares sold at each separate price. ( 2 )Includes Common Stock as well as Restricted Stock Units that will vest over a period of 1 to 3 years. Each Restricted Stock Unit is payable solely by delivery of an equal number of shares of Common Stock. ( 3 )This transaction was executed in multiple trades at prices ranging from $808.04 to $809.03. The price reported represents the weighted average sale price of these trades. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the shares sold at each separate price. ( 4 )This transaction was executed in multiple trades at prices ranging from $809.22 to $810.12. The price reported represents the weighted average sale price of these trades. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the shares sold at each separate price. ( 5 )This transaction was executed in multiple trades at prices ranging from $810.37 to $811.36. The price reported represents the weighted average sale price of these trades. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the shares sold at each separate price. ( 6 )This transaction was executed in multiple trades at prices ranging from $811.42 to $812.42. The price reported represents the weighted average sale price of these trades. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the shares sold at each separate price. ( 7 )This transaction was executed in multiple trades at prices ranging from $812.44 to $812.98. The price reported represents the weighted average sale price of these trades. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the shares sold at each separate price.

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).

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