X0609 4 2026-10-08 0 0001635282 Rimini Street, Inc. RMNI 0002154232 Guasch Alexander false C/O 1700 S. PAVILION CENTER DRIVE SUITE 330 LAS VEGAS NV 89135 0 1 0 0 EVP & Chief Delivery Officer 0 Common Stock 0 D Employee Stock Options (Right to Buy) 4.095 2026-10-08 4 A 0 25000 0 A 2036-10-08 Common Stock 25000 25000 D Restricted Stock Units 2026-10-08 4 A 0 25000 0 A Common Stock 25000 25000 D The Stock Option award will vest in three (3) equal annual installments on October 8, 2027, October 8, 2028 and October 8, 2029, 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. Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's Common Stock upon vesting. The Restricted Stock Unit award will vest in three (3) equal annual installments on October 8, 2027, October 8, 2028 and October 8, 2029, 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. /s/ Celeste Rasmussen Peiffer, as Attorney-in-Fact 2026-10-09