X0609 4 2026-05-11 0001827090 Certara, Inc. CERT 0001628991 Gallagher John E false C/O CERTARA, INC. 4 RADNOR CORPORATE CENTER, SUITE 350 RADNOR PA 19087 false true false false Chief Financial Officer 0 Performance Stock Units 2026-05-11 4 D 0 102522 0 D Common Stock 102522 0 D Performance Stock Units 2026-05-11 4 A 0 102522 0 A Common Stock 102522 102522 D Restricted Stock Units 2026-05-11 4 A 0 129629 0 A 2029-04-01 Common Stock 129629 129629 D Performance Stock Units 2026-05-11 4 A 0 194444 0 A Common Stock 194444 194444 D Each Certara, Inc. ("Company") performance stock unit ("PSU") was granted on May 20, 2025, pursuant to the terms of the 2025 Long-Term Incentive Plan for Company executives approved by the Compensation Committee of the Company's Board of Directors, under the Certara 2020 Incentive Plan (the "2020 Incentive Plan"). Each PSU represents a conditional right to receive one share of Company common stock. The reporting person will be entitled to receive a number of shares between 0% and 200% of the target amount reported based on the Company's performance against certain total shareholder return thresholds through the period ending on March 31, 2028. Each restricted stock unit ("RSU") was granted on May 11, 2026, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. The RSUs will vest and settle in three equal installments on April 1, 2027, April 1, 2028, and April 1, 2029. Each Company PSU was granted on May 11, 2026, pursuant to the terms of the 2026 Long-Term Incentive Plan for Company executives approved by the Compensation Committee of the Company's Board of Directors, under the 2020 Incentive Plan. Each PSU represents a conditional right to receive one share of Company common stock. The reporting person will be entitled to receive a number of shares between 0% and 200% of the target amount reported based on the Company's performance against certain total shareholder return thresholds through the period ending on March 31, 2029. /s/ Daniel D. Corcoran, as Attorney-in-Fact for John E. Gallagher 2026-05-13