🕵️ Certara, Inc. ($CERT)
SEC insider & ownership activity, last 12 months · CIK 1827090 · every row links its SEC filing
Over the last 12 months insiders sold $559K against $200K of open-market buying. Leif E. Pedersen sold $559K through a 10b5-1 trading plan in 1 lots (Sep). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
1 buyer, $200K (1 lots) · 1 seller, $559K (1 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Leif E. Pedersen | 0 | – | 1 | $559K | Sep 9, 2025 |
| William F. Feehery | 1 | $200K | 0 | – | Nov 11, 2025 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Terry M. Mullen | 22.6% | 13D | Apr 14, 2025 | filing ↗ | |
| Arsenal Saturn Holdings LP | 18.6% | 13D | Apr 14, 2025 | filing ↗ | |
| Arsenal Capital Investment VI LP | 18.6% | 13D | Apr 14, 2025 | filing ↗ | |
| Blackrock, Inc. | 11.6% | 13G | Jul 8, 2026 | filing ↗ | |
| Dimensional Fund Advisors LP | exited | 13G | Jul 14, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Leif E. Pedersen | $559K | Sep 9, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Officer/director changes (5.02) | Jun 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 11, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 14, 2026 | filing ↗ |
| Earnings (2.02) | May 11, 2026 | filing ↗ |
| Other events (8.01) | May 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 11, 2026 | filing ↗ |
| Material agreement (1.01) | Apr 22, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 22, 2026 | filing ↗ |
| Officer/director changes (5.02) | Mar 27, 2026 | filing ↗ |
| Earnings (2.02) | Feb 26, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 26, 2026 | filing ↗ |
| Officer/director changes (5.02) | Dec 9, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 9, 2025 | filing ↗ |
| Earnings (2.02) | Nov 6, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 6, 2025 | filing ↗ |
| Material agreement (1.01) | Oct 16, 2025 | filing ↗ |
| New financial obligation (2.03) | Oct 16, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 16, 2025 | filing ↗ |
| Earnings (2.02) | Aug 6, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 6, 2025 | filing ↗ |