Investor Presentation

RS Key Operating Metrics Active Clients (1) Annualized Subscription Revenue (1) 3,500 $500 (US$ in millions) 3,000 3,020 3,010 3,099 $400 2,500 2,849 $420 $416 $393 $400 2,487 2,000 $300 $349 2,063 $302 1,500 1,802 $271 $200 1,000 $100 500 0 T $0 2018 2019 2020 2021 2022 Q3-2022 Q3-2023 2018 2019 2020 2021 2022 Q3-2022 Q3-2023 Gross Revenue Retention Rate (1) Gross Margin 100% 65% 63.6% 60% 62.1% 62.6% 62.8% 62.7% 95% 61.4% 61.5% 94% 94% 55% 90% 92% 92% 92% 92% 91% 85% 80% 2018 2019 50% 45% 40% 2020 2021 2022 Q3-2022 Q3-2023 2018 2019 2020 2021 2022 Q3-2022 Q3-2023 1. See definitions on page 35. Property of Rimini Street 2023 | Proprietary and Confidential 27

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