144 0001833465 XXXXXXXX LIVE 0001422930 PUBMATIC, INC. 001-39748 601 Marshall Street Redwood City CA 94063 650-331-3485 STEVE M PANTELICK Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 8th Floor New York NY 10004

19716 341205.10 37303647 08/13/2026 NASDAQ Common 06/30/2021 Restricted Stock Vesting Under a Registered Plan Issuer N 1965 06/30/2021 Compensation Common 09/30/2021 Restricted Stock Vesting Under a Registered Plan Issuer N 1065 09/30/2021 Compensation Common 12/31/2021 Restricted Stock Vesting Under a Registered Plan Issuer N 2261 12/31/2021 Compensation Common 03/31/2022 Restricted Stock Vesting Under a Registered Plan Issuer N 2260 03/31/2022 Compensation Common 11/30/2023 Restricted Stock Vesting Under a Registered Plan Issuer N 61 11/30/2023 Compensation Common 04/01/2024 Restricted Stock Vesting Under a Registered Plan Issuer N 4177 04/01/2024 Compensation Common 07/01/2024 Restricted Stock Vesting Under a Registered Plan Issuer N 2169 07/01/2024 Compensation Common 07/01/2024 Restricted Stock Vesting Under a Registered Plan Issuer N 189 07/01/2024 Compensation Common 07/01/2024 Restricted Stock Vesting Under a Registered Plan Issuer N 1819 07/01/2024 Compensation Common 05/28/2021 Shares Purchased Through Employee Stock Purchase Plan Issuer N 2500 05/28/2021 Cash Common 05/31/2022 Shares Purchased Through Employee Stock Purchase Plan Issuer N 1250 05/31/2022 Cash N Steve Pantelick

601 Marshall Street Redwood City CA 94063

Common 08/12/2026 22203 383063.92 Steve Pantelick

601 Marshall Street Redwood City CA 94063

Common 07/06/2026 12548 168336.44 Steve Pantelick

601 Marshall Street Redwood City CA 94063

Common 07/01/2026 23548 321430.20 08/13/2026 /s/ Steve Pantelick