CGEM
Cullinan Therapeutics, Inc. · Healthcare · Biotechnology
Momentum inputs (comparable managers): holder breadth 0.0% · share flow -3.0% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 77 | +7 | 28.05M | $510.52M | +11 | −4 |
| Q1 2026 | 73 | +7 | 24.59M | $348.81M | +10 | −3 |
| Q4 2025 | 65 | +1 | 21.69M | $224.52M | +1 | — |
| Q3 2025 | 17 | +1 | 15.39M | $91.26M | +1 | — |
| Q2 2025 | 13 | 0 | 14.48M | $109.06M | +1 | −1 |
| Q1 2025 | 10 | -1 | 7.69M | $58.25M | — | −1 |
| Q4 2024 | 11 | 0 | 8.98M | $109.41M | — | — |
| Q3 2024 | 10 | +1 | 6.86M | $114.80M | +1 | — |
| Q2 2024 | 9 | — | 7.12M | $124.19M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 4.22M | — | $31.76M | 0.0% | n/c | 1 | SEC ↗ ×10 |
| 2 | The Vanguard Group ✦ (passive) | 3.02M | — | $22.74M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 3 | Citadel Advisors ✦ | 2.61M | -4.9% | $19.68M | 0.0% | ▼ Trim | 5 | SEC ↗ ×2 |
| 4 | State Street Global Advisors ✦ (passive) | 1.61M | -8.3% | $12.11M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 5 | Geode Capital Management ✦ (passive) | 1.28M | +3.0% | $9.64M | 0.0% | ▲ Add | 5 | SEC ↗ ×2 |
| 6 | Marshall Wace ✦ | 626.58K | +10.3% | $4.72M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 7 | Millennium Management ✦ | 510.83K | -34.8% | $3.85M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 8 | Renaissance Technologies ✦ | 334.52K | -7.8% | $2.52M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 9 | Wellington Management ✦ | 186.08K | +15.5% | $1.40M | 0.0% | ▲ Add | 5 | SEC ↗ ×3 |
| 10 | T. Rowe Price ✦ | 36.42K | +14.8% | $275,000 | 0.0% | ▲ Add | 5 | SEC ↗ |
| 11 | D. E. Shaw & Co. ✦ | 25.33K | -19.6% | $190,727 | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 12 | AQR Capital Management ✦ | 20.92K | New | $157,528 | 0.0% | New | 1 | SEC ↗ ×4 |
| 13 | Fidelity (FMR) ✦ | 3.81K | — | $28,704 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| AQR Capital Management | $157,528 | 0.0% |
Exited
| Two Sigma Investments | $112,006 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 172 holders, 65.27M shares, $895.39M 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 · 8.00K sh · $172,560
Officer · 30.00K sh · $607,800
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology