X0306 4 2022-07-05 0 0001816581 Ouster, Inc. OUST 0001250152 DEL CALVO JORGE A 350 TREAT AVENUE SAN FRANCISCO CA 94110 1 0 0 0 Common Stock 2022-07-05 4 A 0 7130 1.9633 A 122670 D Represents shares of common stock received in lieu of cash fees pursuant to the Company's Non-Employee Director Compensation Policy. The Reporting Person will settle all awards of common stock received in 2022 and thereafter, including vested restricted stock units, on December 18, 2041, or upon an earlier change in control or separation from service. /s/ Anna Brunelle, Attorney-in-Fact 2022-07-07