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Form 4 Rimini Street, Inc. For: Jun 02 Filed by: Murray Robin P.

June 4, 2026 4:48 PM
FORM 4 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
or Section 30(h) of the Investment Company Act of 1940
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person *
Murray Robin P.
(Last) (First) (Middle)
C/O 1700 S. PAVILION CENTER DRIVE
SUITE 330
(Street)
LAS VEGAS NV 89135
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Rimini Street, Inc. [ RMNI ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director X 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
06/02/2026
4. If Amendment, Date of 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
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 4,320,786 I See Footnote (1)
Common Stock 4,870,262 I See Footnote (2)
Common Stock 4,267,067 I See Footnote (3)
Common Stock 1,313,301 I See Footnote (4)
Common Stock 1,786,318 I See Footnote (5)
Common Stock 1,371,200 I See Footnote (6)
Common Stock 1,353,906 I See Footnote (7)
Common Stock 3,982,079 I See Footnote (8)
Common Stock 300,514 I See Footnote (9)
Common Stock 06/02/2026 M 55,727 A $ 0 328,721 D (10)
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 Securities Underlying Derivative Security (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: 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 (11) 06/02/2026 M 55,727 (12) (12) Common Stock 55,727 $ 0 0 D
Restricted Stock Units (11) 06/03/2026 A 44,117 (13) (13) Common Stock 44,117 $ 0 44,117 D
Explanation of Responses:
1. Represents shares held directly by Adams Street 2007 Direct Fund, L.P. ("AS 2007"). Adams Street Partners, LLC, as the managing member of the general partner of AS 2007, may be deemed to beneficially own the shares held by AS 2007. Stephen Bluestein, Thomas S. Bremmer, Ali Cliff, Brian Dudley, Brijesh Jeevarathnam, Ross Morrison, the Reporting Person and Fred Wang, each of whom is a partner of Adams Street Partners, LLC (or a subsidiary thereof), may be deemed to have shared voting and investment power over the shares held by AS 2007. Adams Street Partners, LLC and each of Stephen Bluestein, Thomas S. Bremmer, Ali Cliff, Brian Dudley, Brijesh Jeevarathnam, Ross Morrison, the Reporting Person and Fred Wang disclaim beneficial ownership of the shares held by AS 2007 except to the extent of their pecuniary interest therein.
2. Represents shares held directly by Adams Street 2008 Direct Fund, L.P. ("AS 2008"). Adams Street Partners, LLC, as the managing member of the general partner of AS 2008, may be deemed to beneficially own the shares held by AS 2008. Stephen Bluestein, Thomas S. Bremmer, Ali Cliff, Brian Dudley, Brijesh Jeevarathnam, Ross Morrison, the Reporting Person and Fred Wang, each of whom is a partner of Adams Street Partners, LLC (or a subsidiary thereof), may be deemed to have shared voting and investment power over the shares held by AS 2008. Adams Street Partners, LLC and each of Stephen Bluestein, Thomas S. Bremmer, Ali Cliff, Brian Dudley, Brijesh Jeevarathnam, Ross Morrison, the Reporting Person and Fred Wang disclaim beneficial ownership of the shares held by AS 2008 except to the extent of their pecuniary interest therein.
3. Represents shares held directly by Adams Street 2009 Direct Fund, L.P. ("AS 2009"). Adams Street Partners, LLC, as the managing member of the general partner of AS 2009, may be deemed to beneficially own the shares held by AS 2009. Stephen Bluestein, Thomas S. Bremmer, Ali Cliff, Brian Dudley, Brijesh Jeevarathnam, Ross Morrison, the Reporting Person and Fred Wang, each of whom is a partner of Adams Street Partners, LLC (or a subsidiary thereof), may be deemed to have shared voting and investment power over the shares held by AS 2009. Adams Street Partners, LLC and each of Stephen Bluestein, Thomas S. Bremmer, Ali Cliff, Brian Dudley, Brijesh Jeevarathnam, Ross Morrison, the Reporting Person and Fred Wang disclaim beneficial ownership of the shares held by AS 2009 except to the extent of their pecuniary interest therein.
4. Represents shares held directly by Adams Street 2013 Direct Fund LP ("AS 2013"). Adams Street Partners, LLC, as the managing member of the general partner of the general partner of AS 2013, may be deemed to beneficially own the shares held by AS 2013. Stephen Bluestein, Thomas S. Bremmer, Ali Cliff, Brian Dudley, Brijesh Jeevarathnam, Ross Morrison, the Reporting Person and Fred Wang, each of whom is a partner of Adams Street Partners, LLC (or a subsidiary thereof), may be deemed to have shared voting and investment power over the shares held by AS 2013. Adams Street Partners, LLC and each of Stephen Bluestein, Thomas S. Bremmer, Ali Cliff, Brian Dudley, Brijesh Jeevarathnam, Ross Morrison, the Reporting Person and Fred Wang disclaim beneficial ownership of the shares held by AS 2013 except to the extent of their pecuniary interest therein.
5. Represents shares held directly by Adams Street 2014 Direct Fund LP ("AS 2014"). Adams Street Partners, LLC, as the managing member of the general partner of the general partner of AS 2014, may be deemed to beneficially own the shares held by AS 2014. Stephen Bluestein, Thomas S. Bremmer, Ali Cliff, Brian Dudley, Brijesh Jeevarathnam, Ross Morrison, the Reporting Person and Fred Wang, each of whom is a partner of Adams Street Partners, LLC (or a subsidiary thereof), may be deemed to have shared voting and investment power over the shares held by AS 2014. Adams Street Partners, LLC and each of Stephen Bluestein, Thomas S. Bremmer, Ali Cliff, Brian Dudley, Brijesh Jeevarathnam, Ross Morrison, the Reporting Person and Fred Wang disclaim beneficial ownership of the shares held by AS 2014 except to the extent of their pecuniary interest therein.
6. Represents shares held directly by Adams Street 2015 Direct Venture/Growth Fund LP ("AS 2015"). Adams Street Partners, LLC, as the managing member of the general partner of the general partner of AS 2015, may be deemed to beneficially own the shares held by AS 2015. Stephen Bluestein, Thomas S. Bremmer, Ali Cliff, Brian Dudley, Brijesh Jeevarathnam, Ross Morrison, the Reporting Person and Fred Wang, each of whom is a partner of Adams Street Partners, LLC (or a subsidiary thereof), may be deemed to have shared voting and investment power over the shares held by AS 2015. Adams Street Partners, LLC and each of Stephen Bluestein, Thomas S. Bremmer, Ali Cliff, Brian Dudley, Brijesh Jeevarathnam, Ross Morrison, the Reporting Person and Fred Wang disclaim beneficial ownership of the shares held by AS 2015 except to the extent of their pecuniary interest therein.
7. Represents shares held directly by Adams Street 2016 Direct Venture/Growth Fund LP ("AS 2016"). Adams Street Partners, LLC, as the managing member of the general partner of the general partner of AS 2016, may be deemed to beneficially own the shares held by AS 2016. Stephen Bluestein, Thomas S. Bremmer, Ali Cliff, Brian Dudley, Brijesh Jeevarathnam, Ross Morrison, the Reporting Person and Fred Wang, each of whom is a partner of Adams Street Partners, LLC (or a subsidiary thereof), may be deemed to have shared voting and investment power over the shares held by AS 2016. Adams Street Partners, LLC and each of Stephen Bluestein, Thomas S. Bremmer, Ali Cliff, Brian Dudley, Brijesh Jeevarathnam, Ross Morrison, the Reporting Person and Fred Wang disclaim beneficial ownership of the shares held by AS 2016 except to the extent of their pecuniary interest therein.
8. Represents shares held directly by Adams Street Venture/Growth Fund VI LP ("AS VGVI"). Adams Street Partners, LLC, as the managing member of the general partner Stephen Bluestein, Thomas S. Bremmer, Ali Cliff, Brian Dudley, Brijesh Jeevarathnam, Ross Morrison, the Reporting Person and Fred Wang, each of whom is a partner of Adams Street Partners, LLC (or a subsidiary thereof), may be deemed to have shared voting and investment power over the shares held by AS VGVI. Adams Street Partners, LLC and each of Stephen Bluestein, Thomas S. Bremmer, Ali Cliff, Brian Dudley, Brijesh Jeevarathnam, Ross Morrison, the Reporting Person and Fred Wang disclaim beneficial ownership of the shares held by AS VGVI except to the extent of their pecuniary interest therein.
9. Represents shares held directly by Adams Street Rimini Aggregator LLC ("ASRA"). Adams Street Partners, LLC, as the manager of ASRA, may be deemed to beneficially own the shares held by ASRA. David Brett, Alex Kessel, Michael Taylor, Benjamin Wallwork and Craig D. Waslin, each of whom is a partner or principal of Adams Street Partners, LLC (or a subsidiary thereof), may be deemed to have shared voting and investment power over the shares held by ASRA. Adams Street Partners, LLC and David Brett, Alex Kessel, Michael Taylor, Benjamin Wallwork and Craig D. Waslin disclaim beneficial ownership of the shares held by ASRA except to the extent of their pecuniary interest therein.
10. The shares of common stock were issued to the Reporting Person, Robin Murray, a director of the Issuer who is a partner of Adams Street Partners, LLC. Adams Street Partners, LLC is the managing member of the general partner of AS 2007, AS 2008, and AS 2009, the managing member of the general partner of the general partner of each of AS 2013, AS 2014, AS 2015, AS 2016 and AS VGVI (collectively, the "Funds") and the manager of ASRA. By agreement with the Funds, Mr. Murray is deemed to hold the shares of common stock for the benefit of the Funds. The shares of common stock may be deemed to be indirectly beneficially owned by Adams Street Partners, LLC. Messrs. Bluestein, Bremmer, Brett, Cliff, Dudley, Jeevarathnam, Kessel, Morrison, Murray, Taylor, Wallwork, Wang and Waslin, each of whom is a partner of Adams Street Partners, LLC (or a subsidiary thereof), disclaim beneficial ownership of the shares of common stock except to the extent of their pecuniary interest therein.
11. Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.
12. On June 4, 2025, the Reporting Person was awarded 55,727 Restricted Stock Units, 100% of which vested on June 2, 2026, or the day before the date of the Issuer's 2026 Annual Meeting of Stockholders.
13. 100% of the Restricted Stock Units awarded will vest on the earlier to occur of (i) June 3, 2027 or (ii) the day before the date of the Issuer's 2027 Annual Meeting of Stockholders, contingent upon the Reporting Person's continued service as a member of the Issuer's Board of Directors through such date.
/s/ Celeste Rasmussen Peiffer, as Attorney-in-Fact 06/04/2026
** Signature of Reporting Person Date
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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