X0306 4 2021-11-02 0 0001407973 Sonendo, Inc. SONX 0001255151 MADERA PAUL S 245 LYTTON AVE, SUITE 125 PALO ALTO CA 94301 1 0 0 0 Common Stock 2021-11-02 4 C 0 1433575 A 1433575 I Held by Meritech Capital Partners IV L.P. Common Stock 2021-11-02 4 C 0 35402 A 35402 I Held by Meritech Capital Affiliates IV L.P. Series D Preferred Stock 2021-11-02 4 C 0 1157456 D Common Stock 1157456 0 I Held by Meritech Capital Partners IV L.P. Series E Preferred Stock 2021-11-02 4 C 0 276119 D Common Stock 276119 0 I Held by Meritech Capital Partners IV L.P. Series D Preferred Stock 2021-11-02 4 C 0 28583 D Common Stock 28583 0 I Held by Meritech Capital Affiliates IV L.P. Series E Preferred Stock 2021-11-02 4 C 0 6819 D Common Stock 6819 0 I Held by Meritech Capital Affiliates IV L.P. Upon the closing of the Issuer's initial public offering, each share of preferred stock automatically converted into shares of the Issuer's common stock on a one-for-one basis. Meritech Capital Associates IV L.L.C. ("GP IV"), the general partner of Meritech Capital Partners IV L.P. ("MCP IV"), has sole voting and dispositive power with respect to the shares held by MCP IV. Mr. Madera is a managing member of GP IV and shares voting and dispositive power with respect to the shares held by MCP IV. Mr. Madera disclaims the existence of a "group" and disclaims beneficial ownership of the securities reported herein, except to the extent of his pecuniary interest in such shares. The filing of this statement shall not be deemed to be an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, Mr. Madera is the beneficial owner of any securities reported herein. GP IV, the general partner of Meritech Capital Affiliates IV L.P. ("MCA IV"), has sole voting and dispositive power with respect to the shares held by MCA IV. Mr. Madera is a managing member of GP IV and shares voting and dispositive power with respect to the shares held by MCA IV. Mr. Madera disclaims the existence of a "group" and disclaims beneficial ownership of the securities reported herein, except to the extent of his pecuniary interest in such shares. The filing of this statement shall not be deemed to be an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, Mr. Madera is the beneficial owner of any securities reported herein. By: /s/ Jacqueline Collins, Attorney-in-Fact for Paul S. Madera 2021-11-02