X0609 4 2026-09-16 0001422930 PubMatic, Inc. PUBM 0001833462 Kumar Mukul false C/O PUBMATIC, INC. 601 MARSHALL STREET REDWOOD CITY CA 94063 false true false false PRESIDENT, ENGINEERING 1 Class A Common Stock 2026-09-16 4 C 0 8000 0 A 120945 D Class A Common Stock 2026-09-16 4 S 0 8000 16.7785 D 112945 D Stock Option (Right to buy Class B Common Stock) 2.15 2026-09-16 4 M 0 8000 0 D 2027-05-01 Class B Common Stock 8000 15000 D Class B Common Stock 2026-09-16 4 M 0 8000 2.15 A Class A Common Stock 8000 143600 D Class B Common Stock 2026-09-16 4 C 0 8000 0 D Class A Common Stock 8000 135600 D The sales reported in this line item were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 3, 2026. Represents the weighted average sale price. The lowest price at which shares were sold was $16.68 and the highest price at which shares were sold was $16.88. The Reporting Person undertakes to provide upon request to the staff of the Securities and Exchange Commission, the Issuer or its stockholders, full information regarding the total number of shares sold at each separate price within the range set forth herein. The options are fully vested. 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. /s/ Andrew Woods, Attorney-in-Fact 2026-09-18