X0306 4 2021-02-01 0001745916 PennyMac Financial Services, Inc. PFSI 0001440697 Grogin Jeffrey C/O PENNYMAC FINANCIAL SERVICES, INC. 3043 TOWNSGATE ROAD WESTLAKE VILLAGE CA 91361 1 Chief Enterprise Ops Officer Common Stock 2021-02-01 4 M 0 11469 24.40 A 40230 D Common Stock 2021-02-01 4 S 0 11469 58.3947 D 28761 D Common Stock 21000 I JBG Children's Trust utd 12/31/2000 Common Stock 22129 I MJG Children's Trust utd 12/31/2000 Common Stock 453655 I The Grogin Living Trust dtd 12-19-01 Common Stock 9025 I Grogin Giving Fund Nonstatutory Stock Option (Right to Buy) 24.40 2021-02-01 4 M 0 11469 0 D 2019-03-09 2028-03-08 Common Stock 11469 5735 D Nonstatutory Stock Option (Right to Buy) 22.92 2020-03-15 2029-03-14 Common Stock 12038 12038 D Nonstatutory Stock Option (Right to Buy) 35.03 2021-02-26 2030-02-25 Common Stock 17824 17824 D The transaction reported was effected pursuant to a 10b5-1 plan. The reported amount consists of 11,926 restricted stock units and 28,304 shares of Common Stock. The restricted stock units are to be settled in an equal number of shares of Common Stock upon vesting. These shares of Common Stock were sold pursuant to a 10b5-1 plan. The price reported is the weighted average price of multiple transactions ranging from $57.82 to $58.80. The reporting person hereby undertakes to provide upon request to the SEC, the Issuer or a security holder of the Issuer the number of shares of Common Stock and the prices at which the transactions were effected. The reported amount consists of 11,926 restricted stock units and 16,835 shares of Common Stock. The restricted stock units are to be settled in an equal number of shares of Common Stock upon vesting. This nonstatutory stock option to purchase 17,204 shares of Common Stock of the Issuer will vest as to one-third of the optioned shares on each March 9, 2019, 2020 and 2021, subject to the Reporting Person's continued service through each date. This nonstatutory stock option to purchase 18,057 shares of Common Stock of the Issuer will vest as to one-third of the optioned shares on each of March 15, 2020, 2021 and 2022, subject to the Reporting Person's continued service through each date. This nonstatutory stock option to purchase 17,824 shares of Common Stock of the Issuer will vest as to one-third of the optioned shares on each of February 26, 2021, 2022 and 2023, subject to the Reporting Person's continued service through each date. /s/ Derek W. Stark, attorney-in-fact for Mr. Grogin 2021-02-02