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 *
Reiner Andres
  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 _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
President & CEO
(Last)
(First)
(Middle)
3200 KIRBY DR., SUITE 600		 3. Date of Earliest Transaction (Month/Day/Year)
07/12/2024
(Street)

HOUSTON, TX 77098		 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 07/12/2024   M   8,719 A $ 25.02 (1) 1,004,183 D  
Common Stock 07/12/2024   F   3,431 D $ 25.02 (1) 1,000,752 D  

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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 (2) 07/12/2024   M     8,719   (3)   (3) Common Stock 8,719 $ 0 263,506 (4) D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Reiner Andres
3200 KIRBY DR., SUITE 600
HOUSTON, TX 77098		   X     President & CEO  

Signatures

 Chris Chaffin, attorney-in-fact for Andres D. Reiner   07/15/2024
**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. ("PROS") common stock at the close of market on July 12, 2024.
(2) Each restricted stock unit ("RSU") represents the contingent right to receive one share of PROS common stock.
(3) This award was granted on January 12, 2023, in the amount of 139,506 RSUs.
(4) Includes (i) 14,619 unvested RSUs awarded Jan 11, 2021 - vests in four equal annual installments which began Jan 11, 2022, with a final lapse date of Jan 11, 2025; (ii) 32,076 unvested RSUs awarded Jan 10, 2022 - vests at 25% after one year on the anniversary date, and the remainder will vest at the rate of 6.25% on the 10th day of the first month of each quarter thereafter; (iii) 87,192 unvested RSUs awarded Jan 12, 2023 - will vest at 25% after one year on the anniversary date, and the remainder will vest at the rate of 6.25% on the 12th day of the first month of each quarter thereafter; and (iv) 129,619 unvested RSUs awarded January 12, 2024 - will vest at 25% after one year on the anniversary date, and the remainder vest at the rate of 6.25% on the 12th day of the first month of each quarter thereafter.

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