X0609 4 2026-10-05 0001422930 PubMatic, Inc. PUBM 0001833465 Pantelick Steven false C/O PUBMATIC, INC. 601 MARSHALL STREET REDWOOD CITY CA 94063 false true false false CHIEF FINANCIAL OFFICER 1 Class A Common Stock 2026-10-05 4 S 0 22173 18.663 D 10353 D The sales reported in this line item were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 13, 2026. The price reported in this line item is a weighted average price. These shares were sold at prices ranging from $18.29 to $18.96, inclusive. The Reporting Person undertakes to provide to the Issuer, any securityholder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein. /s/ Andrew Woods, Attorney-in-Fact 2026-10-06