CERS
Cerus Corporation · Healthcare · Medical - Devices
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +1.0% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 78 | +4 | 100.97M | $293.72M | +7 | −3 |
| Q1 2026 | 76 | -1 | 93.85M | $170.85M | +2 | −3 |
| Q4 2025 | 77 | +2 | 97.51M | $200.87M | +2 | — |
| Q3 2025 | 17 | 0 | 78.06M | $124.11M | — | — |
| Q2 2025 | 14 | 0 | 72.85M | $102.72M | — | — |
| Q1 2025 | 11 | -1 | 42.94M | $59.69M | — | −1 |
| Q4 2024 | 12 | -1 | 40.64M | $62.59M | — | −1 |
| Q3 2024 | 12 | 0 | 39.10M | $68.03M | — | — |
| Q2 2024 | 12 | — | 38.88M | $68.43M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 20.98M | +1.2% | $33.36M | 0.0% | ▲ Add | 2 | SEC ↗ ×10 |
| 2 | ARK Investment Management ✦ | 18.85M | -1.9% | $29.97M | 0.2% | ▼ Trim | 6 | SEC ↗ |
| 3 | The Vanguard Group ✦ (passive) | 10.78M | +0.6% | $17.15M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 4 | Geode Capital Management ✦ (passive) | 4.52M | +4.0% | $7.19M | 0.0% | ▲ Add | 6 | SEC ↗ ×2 |
| 5 | State Street Global Advisors ✦ (passive) | 3.86M | +0.8% | $6.14M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 6 | D. E. Shaw & Co. ✦ | 3.82M | +1.8% | $6.07M | 0.0% | ▲ Add | 6 | SEC ↗ ×2 |
| 7 | Millennium Management ✦ | 3.47M | +17.6% | $5.52M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 8 | AQR Capital Management ✦ | 2.45M | +11.5% | $3.90M | 0.0% | ▲ Add | 6 | SEC ↗ ×5 |
| 9 | Goldman Sachs Group ✦ | 2.45M | — | $3.89M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 10 | Morgan Stanley ✦ | 1.81M | — | $2.87M | 0.0% | n/c | 1 | SEC ↗ ×8 |
| 11 | Two Sigma Investments ✦ | 1.14M | +16.7% | $1.82M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 12 | PRIMECAP Management ✦ | 1.10M | -16.4% | $1.75M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 13 | Citadel Advisors ✦ | 899.60K | -12.6% | $1.43M | 0.0% | ▼ Trim | 6 | SEC ↗ ×2 |
| 14 | Renaissance Technologies ✦ | 839.50K | +9.7% | $1.33M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 15 | Fidelity (FMR) ✦ | 830.17K | +11.6% | $1.32M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 16 | JPMorgan Chase ✦ | 154.26K | — | $245,280 | 0.0% | n/c | 1 | SEC ↗ ×8 |
| 17 | T. Rowe Price ✦ | 93.28K | -65.9% | $149,000 | 0.0% | ▼ Trim | 6 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 166 holders, 151.51M shares, $268.19M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Officer · 30.00K sh · $89,529
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology