X0508 4 2025-02-14 0001745916 PennyMac Financial Services, Inc. PFSI 0001591994 Perotti Daniel Stanley C/O PENNYMAC FINANCIAL SERVICES, INC. 3043 TOWNSGATE ROAD WESTLAKE VILLAGE CA 91361 1 Chief Financial Officer 1 Common Stock 2025-02-14 4 A 0 4913 0 A 42414 D Common Stock 2025-02-14 4 S 0 10500 101.49 D 214997 I The Perotti Family Trust Nonstatutory Stock Option (Right to Buy) 101.76 2025-02-14 4 A 0 12529 0 A 2026-02-14 2035-02-13 Common Stock 12529 12529 D The Reporting Person was granted restricted stock units, which will vest in three equal installments beginning on the first anniversary of the date of grant, are to be settled in an equal number of shares of Common Stock upon vesting. The reported amount consists of 17,462 restricted stock units and 24,952 shares of Common Stock. The restricted stock units are to be settled in an equal number of shares of Common Stock upon vesting. The sale reported on this Form 4 occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 27, 2024. The price reported is the weighted average price of multiple transactions at prices ranging from $101.08 to $102.07. 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 shares of beneficial interest and the prices at which the transactions were effected. This nonstatutory stock option to purchase 12,529 shares of Common Stock of the Issuer will vest as to one-third of the optioned shares on each of February 14, 2026, 2027 and 2028, subject to the Reporting Person's continued service through each date. /s/ Derek W. Stark, attorney-in-fact for Mr. Perotti 2025-02-19