X0306 4 2022-07-25 0001364742 BlackRock Inc. BLK 0001059246 KAPITO ROBERT BLACKROCK INC. 55 EAST 52ND STREET NEW YORK NY 10055 1 1 President Shares Of Common Stock (par Value $0.01 Per Share) 2022-07-25 4 S 0 2698 630.4851 D 261570.4 D Shares Of Common Stock (par Value $0.01 Per Share) 2022-07-25 4 S 0 10289 631.483 D 251281.4 D Shares Of Common Stock (par Value $0.01 Per Share) 2022-07-25 4 S 0 7174 632.5792 D 244107.4 D Shares Of Common Stock (par Value $0.01 Per Share) 2022-07-25 4 S 0 4679 633.4678 D 239428.4 D Shares Of Common Stock (par Value $0.01 Per Share) 2022-07-25 4 S 0 12748 634.4669 D 226680.4 D This transaction was executed in multiple trades at prices ranging from $630.05 to $630.94. 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. 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. This transaction was executed in multiple trades at prices ranging from $631.08 to $632.08. 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. This transaction was executed in multiple trades at prices ranging from $632.08 to $633.07. 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. This transaction was executed in multiple trades at prices ranging from $633.12 to $634.12. 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. This transaction was executed in multiple trades at prices ranging from $634.12 to $634.74. 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. /s/ R. Andrew Dickson III as Attorney-in-Fact for Robert Kapito 2022-07-27