X0306 4 2022-08-10 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 Common Stock 2022-08-10 4 S 0 45000 58.582 D 680386 D Common Stock 465604 I ST Family Investment Company LLC The price reported is the weighted average price of multiple transactions ranging from $58.12 to $58.92. The reporting person hereby undertakes to provide upon request to the SEC, the Issuer or a security holder of the Issuer the number of Common Stock and the prices at which the transactions were effected. The reported amount consists of 54,856 restricted stock units and 625,530 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 2022-08-11