X0306 4 2021-11-29 1 0001422930 PubMatic, Inc. PUBM 0001396792 Helion Venture Partners LLC LES CASCADES BUILDING EDITH CAVELL STREET PORT-LOUIS O4 MAURITIUS 0 0 1 0 Class A Common Stock 2021-11-29 4 C 0 2611126 0.00 A 2611126 D Class A Common Stock 2021-11-29 4 J 0 2611126 0.00 D 0 D Class B Common Stock 2021-11-29 4 C 0 2611126 0.00 D Class A Common Stock 2611126 2407181 D These shares of Class B common stock were converted on a one-for-one basis into Class A common stock. Represents a pro rata, in-kind distribution, and not a purchase or sale of securities, by Helion Venture Partners LLC to its members without additional consideration. Each share of Class B common stock 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. Helion Venture Partners, LLC, By: /s/ Dourvesh Kumar Chumun, Director 2021-12-01