X0306 4 2022-02-25 0001745916 PennyMac Financial Services, Inc. PFSI 0001198631 STARK DEREK C/O PENNYMAC FINANCIAL SERVICES, INC. 3043 TOWNSGATE ROAD WESTLAKE VILLAGE CA 91361 1 Chief Legal Officer Common Stock 2022-02-25 4 F 0 177 57.06 D 67991 D Common Stock 2022-02-26 4 F 0 371 58.65 D 67620 D Represents shares withheld for taxes upon vesting of restricted stock units. The reported amount consists of 11,468 restricted stock units and 56,523 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 10,398 restricted stock units and 57,222 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 Stark 2022-03-01