Robin P. Murray - 02 Jun 2026 Form 4 Insider Report for Rimini Street, Inc. (RMNI)

Footnote F1

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.

Footnote F2

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.

Footnote F3

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.

Footnote F4

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.

Footnote F5

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.

Footnote F6

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.

Footnote F7

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.

Footnote F8

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.

Footnote F9

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.

Footnote F10

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.

Footnote F11

Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting.

Footnote F12

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.

Footnote F13

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.