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 * Woestemeyer Mariette M   2. Issuer Name and Ticker or Trading Symbol PROS Holdings, Inc. [PRO] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 3100 MAIN STREET, SUITE 900 3. Date of Earliest Transaction (Month/Day/Year) 01/01/2017 (Street) HOUSTON, TX 77002 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 Common Stock 01/01/2017   M   6,274 A $ 21.52 (1) 4,149,681 (2) I Held jointly with spouse Ronald F. Woestemeyer

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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

Restricted Stock Units

(3)

01/01/2017

M

6,274

(4)

(4)

Common Stock

6,274

$ 0

0

D

Restricted Stock Units

(3)

01/03/2017

A

6,310

(5)

(5)

Common Stock

6,310

$ 0

6,310

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Woestemeyer Mariette M 3100 MAIN STREET SUITE 900 HOUSTON, TX 77002	X	X

Signatures

Damian Olthoff, attorney-in-fact for Mariette M. Woestemeyer		01/03/2017
**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)	The price represents the price of PROS Holdings, Inc. common stock at the close of market on December 30, 2016, the previous business day before the vest date of January 1, 2017.
(2)	Includes: (i) 770,575 shares held of record by Ronald F. Woestemeyer and Mariette Woestemeyer; (ii) 1,000,000 shares held of record by The Woestemeyer 1999 Gift Trust, of which Deutsche Bank Trust Company Delaware is sole trustee; (iii) 43,998 2007 ILIT; (iv) 476,002 shares held of record by MAROKA, LLC of which Mr. and Mrs. Woestemeyer are the sole managers; (v) 344,560 in Mrs. Woestemeyer's 2010 GRAT Grantor to Retained Annuity Trust; (vi) 226,522 Mrs. Woestemeyer's Dynasty trust; (vii) 236,266 Mr. Woestemeyer's Dynasty Trust; (iix) 603,548 Mr. Woestemeyer's 2007 Irrevocable Trust; and (ix) 448,210 Mrs. Woestemeyer's 2007 Irrevocable Trust.
(3)	Each restricted stock unit represents the contingent right to receive one share of PROS Holdings, Inc. common stock.
(4)	The restricted stock units fully vest on January 1, 2014.
(5)	Includes 6,310 restricted stock units awarded on January 3, 2017 which fully vest on January 1, 2018.

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