Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

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 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 * Rowe David W. 2. Issuer Name and Ticker or Trading Symbol Rimini Street, Inc. [RMNI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) CPO,CMO&EVPGlob.Transformation (Last) (First) (Middle) C/O 1700 S. PAVILION CENTER DRIVE, SUITE 330 3. Date of Earliest Transaction (Month/Day/Year) 09/22/2025 (Street) LAS VEGAS, NV 89135 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 09/22/2025 09/20/2025 M 13,333 A $ 0 437,825 D Common Stock 09/22/2025 S(1) 4,868(1) D(1) $4.6481 432,957 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

Restricted Stock Units

(2)

09/22/2025

09/20/2025

M

13,333

(3)

(3)

Common Stock

13,333

$ 0

26,667

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Rowe David W. C/O 1700 S. PAVILION CENTER DRIVE SUITE 330 LAS VEGAS, NV 89135			CPO,CMO&EVPGlob.Transformation

Signatures

/s/ Celeste Rasmussen Peiffer, as Attorney-in-Fact		09/23/2025
**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)	Reported transaction is an automatically-triggered "sell-to-cover" transaction related to the payment of withholding tax obligations pursuant to the Issuer's policy for tax withholdings associated with Performance Unit vesting events. The Reporting Person did not initiate the sale.
(2)	Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.
(3)	On September 20, 2024, the Reporting Person was granted 40,000 Restricted Stock Units, one-third of which vested on September 20, 2025 (with an effective transaction date of Monday, September 22, 2025). The remaining two-thirds vest ratably on September 20, 2026, and September 20, 2027, generally subject to the Reporting Person continuing to be a Service Provider (as such term is defined in the Issuer's 2013 Equity Incentive Plan) through the applicable vesting date.

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