144 0001375889 XXXXXXXX LIVE 0001321732 Penumbra Inc 001-37557 ONE PENUMBRA PLACE ALAMEDA CA 94502 (510) 995-2486 Grewal Harpreet Director Common Stock Fidelity Brokerage Services LLC

245 Summer Street Boston MA 02110

170 40968.30 38436663 10/02/2023 NYSE Common Stock 09/30/2023 Stock Award vesting Penumbra, Inc. N 170 09/30/2023 N/A N Harpreet Grewal

c/o Penumbra, Inc One Penumbra Place Alameda CA 94502

Common Stock 09/01/2023 340 90650.80 10/02/2023 05/23/2023 /s/ Myra King, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Harpreet Grewal