Security record · archived quarter
CERT
Certara, Inc. · Healthcare · Medical - Healthcare Information Services
18Tracked holders
+2Δ holders
38.60MShares held
$451.58MReported value
+3New positions
−1Exits
Momentum inputs (comparable managers):
holder breadth +12.5% ·
share flow +5.7% ·
net new positions +11.1%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 86 | -1 | 77.54M | $507.33M | +10 | −11 |
| Q1 2026 | 90 | +6 | 76.64M | $437.42M | +11 | −5 |
| Q4 2025 | 83 | 0 | 76.79M | $676.57M | +1 | −1 |
| Q3 2025 | 19 | -1 | 44.86M | $548.13M | +1 | −3 |
| Q2 2025 | 18 | +2 | 38.60M | $451.58M | +3 | −1 |
| Q1 2025 | 13 | +1 | 10.46M | $103.56M | +2 | −1 |
| Q4 2024 | 12 | 0 | 9.62M | $102.45M | +1 | −1 |
| Q3 2024 | 11 | +1 | 4.38M | $51.29M | +3 | −2 |
| Q2 2024 | 10 | — | 11.06M | $153.25M | — | — |
Who holds it · Q2 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 13.34M | — | $156.04M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 13.34M | — | $156.04M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 13.34M | — | $156.04M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 13.34M | — | $156.04M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 13.34M | — | $156.04M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 13.34M | — | $156.04M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 13.34M | — | $156.04M | 0.0% | n/c | 1 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 13.34M | — | $156.04M | 0.0% | n/c | 1 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 13.34M | — | $156.04M | 0.0% | n/c | 1 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 13.34M | — | $156.04M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 13.34M | — | $156.04M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 13.34M | — | $156.04M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 13.34M | — | $156.04M | 0.0% | n/c | 1 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 13.34M | — | $156.04M | 0.0% | n/c | 1 | SEC ↗ |
| 15 | The Vanguard Group ✦ (passive) | 12.43M | — | $145.48M | 0.0% | n/c | 1 | SEC ↗ |
| 16 | The Vanguard Group ✦ (passive) | 12.43M | — | $145.48M | 0.0% | n/c | 1 | SEC ↗ |
| 17 | The Vanguard Group ✦ (passive) | 12.43M | — | $145.48M | 0.0% | n/c | 1 | SEC ↗ |
| 18 | The Vanguard Group ✦ (passive) | 12.43M | — | $145.48M | 0.0% | n/c | 1 | SEC ↗ |
| 19 | The Vanguard Group ✦ (passive) | 12.43M | — | $145.48M | 0.0% | n/c | 1 | SEC ↗ |
| 20 | State Street Global Advisors ✦ (passive) | 3.66M | +0.8% | $42.83M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 21 | Capital World Investors ✦ | 2.16M | 0.0% | $25.27M | 0.0% | Held | 2 | SEC ↗ |
| 22 | Geode Capital Management ✦ (passive) | 2.02M | -0.1% | $23.61M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 23 | Geode Capital Management ✦ (passive) | 2.02M | -0.1% | $23.61M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 24 | Marshall Wace ✦ | 1.51M | +1430.6% | $17.69M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 25 | Marshall Wace ✦ | 1.51M | +1430.6% | $17.69M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 26 | Marshall Wace ✦ | 1.51M | +1430.6% | $17.69M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 27 | Marshall Wace ✦ | 1.51M | +1430.6% | $17.69M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 28 | Millennium Management ✦ | 1.01M | +44.1% | $11.85M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 29 | Citadel Advisors ✦ | 658.89K | +34.0% | $7.71M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 30 | Citadel Advisors ✦ | 658.89K | +34.0% | $7.71M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 31 | Two Sigma Investments ✦ | 379.25K | +89.2% | $4.44M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 32 | Gotham Asset Management ✦ | 326.06K | -61.2% | $3.81M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 33 | Renaissance Technologies ✦ | 296.80K | New | $3.47M | 0.0% | New | 1 | SEC ↗ |
| 34 | Fidelity (FMR) ✦ | 283.60K | — | $3.32M | 0.0% | n/c | 1 | SEC ↗ |
| 35 | Fidelity (FMR) ✦ | 283.60K | — | $3.32M | 0.0% | n/c | 1 | SEC ↗ |
| 36 | Fidelity (FMR) ✦ | 283.60K | — | $3.32M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | AQR Capital Management ✦ | 262.00K | +882.3% | $3.03M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 38 | AQR Capital Management ✦ | 262.00K | +882.3% | $3.03M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 39 | AQR Capital Management ✦ | 262.00K | +882.3% | $3.03M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 40 | AQR Capital Management ✦ | 262.00K | +882.3% | $3.03M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 41 | Adage Capital Partners ✦ | 82.32K | New | $963,109 | 0.0% | New | 1 | SEC ↗ |
| 42 | T. Rowe Price ✦ | 82.15K | +2.4% | $962,000 | 0.0% | ▲ Add | 5 | SEC ↗ |
| 43 | D. E. Shaw & Co. ✦ | 45.28K | New | $529,799 | 0.0% | New | 1 | SEC ↗ |
| 44 | D. E. Shaw & Co. ✦ | 45.28K | New | $529,799 | 0.0% | New | 1 | SEC ↗ |
| 45 | Norges Bank ✦ (passive) | 36.30K | -80.2% | $424,745 | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 46 | GAMCO Investors ✦ | 12.00K | 0.0% | $140,400 | 0.0% | Held | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Renaissance Technologies | $3.47M | 0.0% |
| Adage Capital Partners | $963,109 | 0.0% |
| D. E. Shaw & Co. | $529,799 | 0.0% |
| D. E. Shaw & Co. | $529,799 | 0.0% |
Exited
| Bridgewater Associates | $101,673 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 252 holders, 134.62M shares, $745.75M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2025 ·
Methodology ·
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