X0306 4 2020-12-11 0 0001422930 PubMatic, Inc. PUBM 0001835859 Gupta Ashish C/O PUBMATIC, INC. 3 LAGOON DRIVE, SUITE 180 REDWOOD CITY CA 94065 1 0 1 0 Class A Common Stock 2020-12-11 4 C 0 975241 0.00 A 975241 I See footnote Class A Common Stock 2020-12-11 4 S 0 975241 20.00 D 0 I See footnote Class B Common Stock 2020-12-11 4 C 0 8502661 0.00 A Class A Common Stock 8502661 8502661 I See footnote Class B Common Stock 2020-12-11 4 C 0 975241 0.00 D Class A Common Stock 975241 7527420 I See footnote Series A Preferred Stock 2020-12-11 4 C 0 1405896 0.00 D Class B Common Stock 1405896 0 I See footnote Series B Preferred Stock 2020-12-11 4 C 0 1417378 0.00 D Class B Common Stock 1417378 0 I See footnote Series C Preferred Stock 2020-12-11 4 C 0 5000657 0.00 D Class B Common Stock 5000657 0 I See footnote Series D Preferred Stock 2020-12-11 4 C 0 637251 0.00 D Class B Common Stock 637251 0 I See footnote Series D Prime Preferred Stock 2020-12-11 4 C 0 41479 0.00 D Class B Common Stock 41479 0 I See footnote Each share of Class B common stock held by the Issuer's executive officers, directors and their respective affiliates will convert automatically into one share of Class A common stock upon any transfer that occurs after the closing of the Issuer's initial public offering, except for certain permitted transfers. These securities are held by Helion Venture Partners, LLC (HVP LLC). The General Partners of HVP LLC are Ashish Gupta and Sanjeev Aggarwal. The Investment Manager of HVP LLC is Helion Investment Management LLC, of which SA Holdings Global Ltd. (SA Holdings), and the Gupta Goyal Revocable Trust (Goyal Trust) are members. Sanjeev Aggarwal has sole voting and investment power with respect to the shares held by SA Holdings. Ashish Gupta and Nita Goyal share voting and investment power with respect to the shares held by the Goyal Trust. Ashish Gupta is a Director on the Boards of HVP LLC and the Issuer. Accordingly, Sanjeev Aggarwal, Ashish Gupta, and Nita Goyal may be deemed to share voting and investment power over these shares. Each share of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D Prime Preferred Stock automatically converted into one share of Class B common stock immediately prior to the closing of the Issuer's initial public offering. The Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D Prime Preferred Stock have no expiration date. /s/ Thomas Chow, Attorney-in-Fact 2020-12-11