Sec Form 4 Filing - Woestemeyer Mariette M @ PROS Holdings, Inc. - 2012-02-14

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 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 (MM/DD/YY) 02/14/2012 (Street) HOUSTON, TX77002 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 02/14/2012 S 500,000 D $ 17.8 4,315,443 ( 1 ) I Held jointly with spouse Ronald F. Woestemeyer

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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Woestemeyer Mariette M 3100 MAIN STREET SUITE 900 HOUSTON, TX77002 X X Signatures J. Scott McClendon, Attorney-in-fact for Mariette M. Woestemeyer 02/16/2012 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Consists of (i) 996,476 shares held of record by Ronald F. Woestemeyer and Mariette Woestemeyer, (ii) 647,238 shares held of record by Ronald Woestemeyer 2009 GRAT, of which Deutsche Bank Trust Company Delaware and Mr. Woestemeyer are the co-trustees, (iii) 651,729 shares held of record by Mariette Woestemeyer 2009 GRAT of which Deutsche Bank Trust Company Delaware and Mrs. Woestemeyer are the co-trustee, (iv) 1,000,000 shares held of record by The Woestemeyer 1999 Gift Trust, of which Deutsche Bank Trust Company Delaware is sole trustee (v) 476,002 shares held of record by MAROKA, LLC, of which Mr. and Mrs. Woestemeyer are the sole managers, (vi) 500,000 shares held of record by the Mariette Woestemeyer 2010 GRAT of which Deutsche Bank Trust Company Delaware is the sole trustee, and (vii) 43,998 shares held of record by the Ronald and Mariette Woestemeyer 2007 IDGT of which Deutsche Bank Trust Company Delaware is the sole trustee.

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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