Certara
Supports drug-development decisions with biosimulation software, scientific technology, and services.
$8.35
After-hours close−0.01 (−0.12%)
At close$8.36(−0.59%)
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Breakdown13F · Form 4
Institutions 87.53%136.17M sharesInsiders 2.57%4.00M sharesOther 9.90%15.39M shares
Shares outstanding 155.57M · Float 107.25M · 68.9% free float
Institutions13F, as of Jun 30, 2026
244 holders · 136.17M shares · 60 new positions · 150 increased · 69 reduced · 73 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 18.82M | 12.10% | +4.51M | Aug 7, 2026 |
| Deerfield Management Company, L.P. (Series C) | 7.51M | 4.83% | −295.7K | Aug 14, 2026 |
| Haveli Investment Management LLC | 7.40M | 4.76% | +7.40Mnew | Aug 14, 2026 |
| Jefferies Financial Group Inc. | 7.09M | 4.56% | +232.8K | Aug 17, 2026 |
| Vanguard Portfolio Management LLC | 7.06M | 4.54% | +1.09M | Aug 13, 2026 |
| Dimensional Fund Advisors LP | 6.02M | 3.87% | −2.54M | Aug 11, 2026 |
| Vanguard Capital Management LLC | 5.28M | 3.40% | −77.2K | Aug 13, 2026 |
| State Street Corp | 4.82M | 3.10% | +881.3K | Aug 7, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Terry M. Mullenincl. Arsenal Capital Investment VI LP, Arsenal Saturn Holdings LP +3 more | 22.60% | 36.35M | 13D | Apr 14, 2025 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| William F. Feehery | director, officer: CHIEF EXECUTIVE OFFICER | 2.36M | 1.52% | Nov 12, 2025 |
| James E. Iii Cashman | director, other: Chairman | 484.2K | 0.31% | May 15, 2026 |
| Robert Aspbury | officer: PRESIDENT, PREDICTIVE TECH | 314.9K | 0.20% | Apr 3, 2026 |
| Matthew M. Walsh | director | 213.3K | 0.14% | May 15, 2026 |
| Faiz Mohammed | officer: Interim CFO | 163.7K | 0.11% | Jul 17, 2026 |
| Leif E. Pedersen | officer: PRESIDENT, CHIEF COMMERCAL OFF | 85.0K | 0.05% | Apr 3, 2026 |
| John E. Gallagher | officer: Chief Financial Officer | 62.1K | 0.04% | Apr 3, 2026 |
| Cynthia Collins | director | 51.8K | 0.03% | May 15, 2026 |
| Nancy Killefer | director | 51.8K | 0.03% | May 15, 2026 |
| Eran Broshy | director, other: Chairman | 50.7K | 0.03% | May 15, 2026 |
15 people have not refiled in the last 18 months (69.53M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Nov 11, 2025 | William F. Feeherydirector, officer: CHIEF EXECUTIVE OFFICER | Purchase | 24,096 | $8.30 | 2,360,769 |
| Sep 9, 2025 | Leif E. Pedersenofficer: PRESIDENT, CHIEF COMMERCAL OFF | Sale | 51,224 | $10.92 | 73,979 |
CongressHouse and Senate disclosures
Not reported.