X0508 4 2024-02-27 0001745916 PennyMac Financial Services, Inc. PFSI 0001275713 SPECTOR DAVID C/O PENNYMAC FINANCIAL SERVICES, INC. 3043 TOWNSGATE ROAD WESTLAKE VILLAGE CA 91361 1 1 Chairman & CEO 0 Common Stock 270604 I ST Family Investment Company LLC Common Stock 2024-02-27 4 F 0 2984 87.06 D 640547 D Common Stock 2024-02-27 4 F 0 1985 87.06 D 638562 D Represents shares withheld for taxes upon vesting of restricted stock units. The reported amount consists of 30,218 restricted stock units and 610,329 shares of Common Stock. The restricted stock units are to be settled in an equal number of shares of Common Stock upon vesting. The reported amount consists of 26,111 restricted stock units and 612,451 shares of Common Stock. The restricted stock units are to be settled in an equal number of shares of Common Stock upon vesting. /s/ Derek W. Stark, attorney-in-fact for Mr. Spector 2024-02-28