Certara's three largest insider shareholders as of March 23, 2026 are William F Feehery (Chief Executive Officer, 2.36Mn shares), Mason P Slaine (Director, 660.32K shares), Sherilyn S Mccoy (Director, 621.14K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| William F Feehery | Chief Executive Officer | 2,360,769 | 0 | 12 Nov, 2025 |
| Mason P Slaine | 660,322 | 0 | 16 Nov, 2022 | |
| Sherilyn S Mccoy | 621,143 | 0 | 18 May, 2021 | |
| Michael Andrew Schemick | Chief Financial Officer | 522,895 | 0 | 03 Apr, 2023 |
| Justin Edge | Pres., Regulatory Access | 394,764 | 0 | 05 Apr, 2022 |
| Craig R. Rayner | President, Integrated Drug Dev | 316,010 | 0 | 07 Sep, 2021 |
| Robert Aspbury | President, Predictive Tech | 307,176 | 0 | 03 Apr, 2025 |
| Jieun W. Choe | Chief Strategy Marketing | 248,577 | 0 | 05 Apr, 2022 |
| Matthew M Walsh | 197,559 | 0 | 22 May, 2025 | |
| Judith Dickinson | See Remarks | 173,564 | 0 | 09 Apr, 2021 |
| Richard M. Traynor | Svp And General Counsel | 173,524 | 0 | 03 Apr, 2024 |
| Leif E Pedersen | President, Chief Commercal Off | 73,979 | 0 | 11 Sep, 2025 |
| Patrick F Smith | President, Drug Dev Solutions | 50,091 | 0 | 08 Oct, 2024 |
| John E Gallagher | President, Chief Commercal Off | 46,528 | 0 | 03 Apr, 2025 |
| Stephen M. Mclean | 42,000 | 0 | 23 Aug, 2022 | |
| Cynthia Collins | 36,089 | 0 | 22 May, 2025 | |
| Nancy Killefer | 36,089 | 0 | 22 May, 2025 | |
| Rosemary A Crane | 29,915 | 0 | 22 May, 2025 | |
| Nicolette D Sherman | Chief Human Resources Officer | 24,358 | 0 | 03 Apr, 2024 |
| Daniel Corcoran | Svp And General Counsel | 16,221 | 0 | 02 Jun, 2025 |
| Drayton Virkler | President, Reg Acces | 12,415 | 0 | 03 Apr, 2023 |
| John V W Reynders | 10,709 | 0 | 22 May, 2025 | |
| Carol Giltner Gallagher | 7,059 | 0 | 16 Jun, 2021 | |
| Rona Anhalt | Chief Human Resources Officer | 5,181 | 0 | 02 Jun, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 27 Feb, 2026 | Arjun Bedi | Restricted Stock Units | A | 5,547 | $0.00 | 5,547 | D | A |
| 11 Nov, 2025 | William F Feehery | Common Stock | A | 24,096 | $8.30 | 2,360,769 | D | P |
| 09 Sep, 2025 | Leif E Pedersen | Common Stock | D | 51,224 | $10.92 | 73,979 | D | S |
| 30 May, 2025 | Daniel Corcoran | Common Stock | A | 7,940 | $0.00 | 7,940 | D | M |
| 30 May, 2025 | Rona Anhalt | Common Stock | A | 7,146 | $0.00 | 7,146 | D | M |
| 30 May, 2025 | Rona Anhalt | Common Stock | D | 1,965 | $11.40 | 5,181 | D | F |
| 30 May, 2025 | Daniel Corcoran | Common Stock | D | 2,298 | $11.40 | 5,642 | D | F |
| 30 May, 2025 | Rona Anhalt | Restricted Stock Units | D | 7,146 | $0.00 | 14,294 | D | M |
| 30 May, 2025 | Daniel Corcoran | Comon Stock | A | 14,888 | $0.00 | 20,530 | D | M |
| 30 May, 2025 | Daniel Corcoran | Common Stock | D | 4,309 | $11.40 | 16,221 | D | F |
| 30 May, 2025 | Daniel Corcoran | Restricted Stock Units | D | 7,940 | $0.00 | 15,882 | D | M |
| 30 May, 2025 | Daniel Corcoran | Restricted Stock Units | D | 14,888 | $0.00 | 14,889 | D | M |
| 20 May, 2025 | William F Feehery | Performance Stock Units | A | 280,716 | $0.00 | 280,716 | D | A |
| 21 May, 2025 | Rosemary A Crane | Common Stock | A | 11,928 | $0.00 | 29,915 | D | M |
| 20 May, 2025 | Rona Anhalt | Performance Stock Units | A | 43,938 | $0.00 | 43,938 | D | A |
| 20 May, 2025 | Adrian Mckemey | Performance Stock Units | A | 48,820 | $0.00 | 48,820 | D | A |
| 20 May, 2025 | John E Gallagher | Performance Stock Units | A | 102,522 | $0.00 | 102,522 | D | A |
| 20 May, 2025 | Daniel Corcoran | Performance Stock Units | A | 48,820 | $0.00 | 48,820 | D | A |
| 20 May, 2025 | Robert Aspbury | Performance Stock Units | A | 68,348 | $0.00 | 68,348 | D | A |
| 21 May, 2025 | John V W Reynders | Common Stock | A | 10,709 | $0.00 | 10,709 | D | M |