Sec Form 4 Filing - Grogin Jeffrey @ PennyMac Financial Services, Inc. - 2021-03-11

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Grogin Jeffrey 2. Issuer Name and Ticker or Trading Symbol PennyMac Financial Services, Inc. [ PFSI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Enterprise Ops Officer (Last) (First) (Middle) C/O PENNYMAC FINANCIAL SERVICES, INC., 3043 TOWNSGATE ROAD 3. Date of Earliest Transaction (MM/DD/YY) 03/11/2021 (Street) WESTLAKE VILLAGE, CA91361 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 03/11/2021 S 1,210 ( 1 ) D $ 66.18 26,986 ( 2 ) D Common Stock 21,000 I JBG Children's Trust utd 12/31/2000 Common Stock 22,129 I MJG Children's Trust utd 12/31/2000 Common Stock 453,655 I The Grogin Living Trust dtd 12-19-01 Common Stock 4,395 I Grogin Giving Fund

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Nonstatutory Stock Option (Right to Buy) $ 24.4 03/09/2019 03/08/2028 Common Stock 5,735 ( 3 ) 5,735 D Nonstatutory Stock Option (Right to Buy) $ 22.92 03/15/2020 03/14/2029 Common Stock 12,038 ( 4 ) 12,038 D Nonstatutory Stock Option (Right to Buy) $ 35.03 02/26/2021 02/25/2030 Common Stock 17,824 ( 5 ) 17,824 D Nonstatutory Stock Option (Right to Buy) $ 58.85 02/25/2022 02/24/2031 Common Stock 9,239 ( 6 ) 9,239 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Grogin Jeffrey C/O PENNYMAC FINANCIAL SERVICES, INC. 3043 TOWNSGATE ROAD WESTLAKE VILLAGE, CA91361 Chief Enterprise Ops Officer Signatures /s/ Derek W. Stark, attorney-in-fact for Mr. Grogin 03/15/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )These shares of Common Stock were sold pursuant to a 10b5-1 plan. ( 2 )The reported amount consists of 10,151 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. ( 3 )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. ( 4 )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. ( 5 )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. ( 6 )This nonstatutory stock option to purchase 9,239 shares of Common Stock of the Issuer will vest as to one-third of the optioned shares on each of February 25, 2022, 2023 and 2024, subject to the Reporting Person's continued service through each date.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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