X0306 4 2022-09-14 0 0001899287 Amprius Technologies, Inc. AMPX 0001698362 Wallach Sandra C/O AMPRIUS TECHNOLOGIES, INC., 1180 PAGE AVENUE FREMONT CA 94538 0 1 0 0 Chief Financial Officer Stock Option (right to buy) 1.78 2022-09-14 4 A 0 582360 A 2031-08-22 Common Stock 582360 582360 D Stock Option (right to buy) 2.61 2022-09-14 4 A 0 145590 A 2032-04-13 Common Stock 145590 145590 D 1/4 of the total number of shares issuable upon exercise of the option vested on July 26, 2022, and 1/48 of the total number of shares issuable upon exercise of the option vest monthly thereafter until fully vested on July 26, 2025. On September 14, 2022, the Issuer completed a business combination (the "Business Combination") pursuant to the Business Combination Agreement, by and among the Issuer, a wholly owned subsidiary of the Issuer, and Amprius Technologies Operating, Inc. ("Legacy Amprius") At the effective time of the Business Combination (the "Effective Time"), each Legacy Amprius option was converted into an option to purchase a number of shares of Common Stock of the Issuer equal to the product (rounded down to the nearest whole number) of (i) the number of shares of Legacy Amprius common stock subject to the Legacy Amprius option immediately prior to the Effective Time multiplied by (ii) an exchange ratio of approximately 1.45590, at an exercise price per share (rounded up to the nearest whole cent) equal to (A) the exercise price per share of such Legacy Amprius option immediately prior to the Effective Time divided by (B) the Exchange Ratio. 1/48 of the total number of shares issuable upon exercise of the option vested on February 1, 2023, and 1/48 of the total number of shares issuable upon exercise of the option vest monthly thereafter until fully vested on January 1, 2027. /s/ Sandra Wallach 2022-09-16