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 OF SECURITIES 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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(Print or Type Responses)

1. Name and Address of Reporting Person * SPECTOR DAVID   2. Issuer Name and Ticker or Trading Symbol PENNYMAC FINANCIAL SERVICES, INC. [PFSI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) President & CEO (Last) (First) (Middle) C/O PENNYMAC FINANCIAL SERVICES, INC., 3043 TOWNSGATE ROAD 3. Date of Earliest Transaction (Month/Day/Year) 03/07/2018 (Street) WESTLAKE VILLAGE, CA 91361 4. If Amendment, Date Original Filed(Month/Day/Year) 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 (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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 Class A Common Stock 03/07/2018   S   5,540 (1) D $ 24.398 (2) 22,160 (3) D   Class A Common Stock 03/08/2018   S   3,693 (1) D $ 24.5195 (4) 18,467 (5) D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

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 (Month/Day/Year)

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

Cl A Units of Private Nat'l Mortgage Acceptance Company, LLC (6)

(6)

(6)

(6)

Class A Common Stock

1,234,125

1,234,125

D

Cl A Units of Private Nat'l Mortgage Acceptance Company, LLC (6)

(6)

(6)

(6)

Class A Common Stock

465,604

465,604

I

ST Family Investment Company LLC (7)

Nonstatutory Stock Option (Right to Buy)

$ 21.03

06/13/2014

06/12/2023

Class A Common Stock

40,735 (8)

40,735

D

Nonstatutory Stock Option (Right to Buy)

$ 17.26

02/26/2015

02/25/2024

Class A Common Stock

72,301 (9)

72,301

D

Nonstatutory Stock Option (Right to Buy)

$ 17.52

03/03/2016

03/02/2025

Class A Common Stock

61,120 (10)

61,120

D

Nonstatutory Stock Option (Right to Buy)

$ 11.28

03/07/2017

03/06/2026

Class A Common Stock

71,161 (11)

71,161

D

Nonstatutory Stock Option (Right to Buy)

$ 18.05

03/06/2018

03/05/2027

Class A Common Stock

69,252 (12)

69,252

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
SPECTOR DAVID C/O PENNYMAC FINANCIAL SERVICES, INC. 3043 TOWNSGATE ROAD WESTLAKE VILLAGE, CA 91361	X		President & CEO

Signatures

/s/ Derek W. Stark, attorney-in-fact for Mr. Spector		03/08/2018
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	These shares of Class A Common Stock were sold pursuant to a 10b5-1 plan.
(2)	The price reported is the weighted average price of multiple transactions ranging from $24.15 to $24.65. The reporting person hereby undertakes to provide upon request to the SEC, the Issuer or a security holder of the Issuer the number of Class A Common Stock and the prices at which the transactions were effected.
(3)	The reported amount consists of 18,467 restricted stock units and 3,693 shares of Class A Common Stock. The restricted stock units are to be settled in an equal number of shares of Class A Common Stock upon vesting.
(4)	The price reported is the weighted average price of multiple transactions ranging from $24.35 to $24.65. The reporting person hereby undertakes to provide upon request to the SEC, the Issuer or a security holder of the Issuer the number of Class A Common Stock and the prices at which the transactions were effected.
(5)	The reported amount consists of 18,467 restricted stock units. The restricted stock units are to be settled in an equal number of shares of Class A Common Stock upon vesting.
(6)	Pursuant to the terms of an exchange agreement, Class A Units of Private National Mortgage Acceptance Company, LLC are exchangeable for shares of Class A Common Stock of PennyMac Financial Services, Inc. on a one-for-one basis, subject to customary conversion rate adjustments.
(7)	These securities are held by ST Family Investment Company LLC, of which Mr. Spector is the sole manager. Mr. Spector disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.
(8)	This nonstatutory stock option to purchase 40,735 shares of Class A Common Stock of the Issuer will vest as to one-third of the optioned shares on each of June 13, 2014, 2015 and 2016, subject to the Reporting Person's continued service through each date.
(9)	This nonstatutory stock option to purchase 72,301 shares of Class A Common Stock of the Issuer will vest as to one-third of the optioned shares on each of February 26, 2015, 2016 and 2017, subject to the Reporting Person's continued service through each date.
(10)	This nonstatutory stock option to purchase 61,120 shares of Class A Common Stock of the Issuer will vest as to one-third of the optioned shares on each of March 3, 2016, 2017 and 2018, subject to the Reporting Person's continued service through each date.
(11)	This nonstatutory stock option to purchase 71,161 shares of Class A Common Stock of the Issuer will vest as to one-third of the optioned shares on each of March 7, 2017, 2018 and 2019, subject to the Reporting Person's committed service through each date.
(12)	This nonstatutory stock option to purchase 69,252 shares of Class A Common Stock of the Issuer will vest as to one-third of the optioned shares on each of March 6, 2018, 2019 and 2020, subject to the Reporting Person's committed service through each date.

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