X0609 4 2026-06-16 0 0001512673 Block, Inc. XYZ 0001222287 BOTHA ROELOF false C/O SEQUOIA CAPITAL, 2800 SAND HILL ROAD SUITE 101 MENLO PARK CA 94025 1 0 0 0 0 Class A Common Stock 2026-06-16 4 A 0 4619 0 A 36210 D Class A Common Stock 1862 I Sequoia Capital U.S. Growth Fund IV, L.P. Class A Common Stock 77 I Sequoia Capital USGF Principals Fund IV, L.P. Class A Common Stock 11388 I Sequoia Capital U.S. Venture Fund XV, L.P. Class A Common Stock 479 I Sequoia Capital U.S. Venture Partners Fund XV (Q), L.P. Class A Common Stock 171 I Sequoia Capital U.S. Venture Partners Fund XV, L.P. Class A Common Stock 1750 I Sequoia Capital U.S. Venture XV Principals Fund, L.P. Class A Common Stock 540646 I Sequoia Capital US/E Expansion Fund I, L.P. Class A Common Stock 434405 I SC US/E ExpansionFund I Management, L.P. Class A Common Stock 690189 I By estate planning vehicle Represents an automatic annual restricted stock unit (RSU) award issued pursuant to the Issuer's Outside Director Compensation Policy. Each RSU represents a contingent right to receive one share of Issuer's Class A Common Stock upon settlement. 100% of the RSUs vest on the earlier of June 16, 2027, or the date of the Issuer's next annual meeting of stockholders. The number of shares held reflects the transfer of 5,448 shares of Class A Common Stock from the Reporting Person to the estate planning vehicle. The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is the general partner of SCGF IV Management,L.P., which is the general partner of Sequoia Capital U.S. Growth Fund IV, L.P. and Sequoia Capital USGF Principals Fund IV, L.P., or collectively, the SC GFIV Funds. The Reporting Person disclaims beneficial ownership of the securities held by the SC GFIV Funds except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is the general partner of SC U.S. Venture XV Management, L.P., which is the general partner of Sequoia Capital U.S. Venture Fund XV, L.P., Sequoia Capital U.S. Venture Partners Fund XV (Q), L.P., Sequoia Capital U.S. Venture Partners Fund XV, L.P. and Sequoia Capital U.S. Venture XV Principals Fund, L.P., or collectively, the SC USV XV Funds. The Reporting Person disclaims beneficial ownership of the securities held by the SC USV XV Funds except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. The Reporting Person is a director and stockholder of SC US (TTGP), Ltd. SC US (TTGP), Ltd. is the general partner of SC US/E Expansion Fund I Management, L.P., which is the general partner of Sequoia Capital US/E Expansion Fund I, L.P., or collectively, the SC EXPI Funds. The Reporting Person disclaims beneficial ownership of the securities held by the SC EXPI Funds except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. /s/ Susan Szotek, Attorney-in-Fact 2026-06-18