X0508 4 2024-01-02 0 0001512673 Block, Inc. SQ 0001683645 Dale Ajmere 1955 BROADWAY SUITE 600 OAKLAND CA 94612 0 1 0 0 Chief Accounting Officer 1 Class A Common Stock 2024-01-02 4 S 0 1025 73.78 D 69979 D Class A Common Stock 2024-01-02 4 S 0 500 75.43 D 69479 D Represents the number of shares automatically sold to satisfy the Issuer's income tax withholding and remittance obligations in connection with the vesting of restricted stock units. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $73.77 to $73.78 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on May 11, 2023. /s/ Susan Szotek, Attorney-in-Fact 2024-01-04