CMPX
Compass Therapeutics, Inc. · Healthcare · Biotechnology
Momentum inputs (comparable managers):
holder breadth +9.1% ·
share flow +3.1% ·
net new positions +8.3%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 80 | +4 | 68.60M | $150.73M | +11 | −7 |
| Q1 2026 | 79 | +9 | 59.45M | $314.31M | +12 | −3 |
| Q4 2025 | 70 | +2 | 49.56M | $266.12M | +3 | −1 |
| Q3 2025 | 15 | 0 | 39.02M | $136.56M | +1 | −1 |
| Q2 2025 | 12 | +1 | 25.65M | $66.69M | +1 | — |
| Q1 2025 | 8 | +1 | 9.48M | $18.01M | +1 | — |
| Q4 2024 | 7 | -1 | 10.74M | $15.57M | — | −1 |
| Q3 2024 | 7 | -1 | 14.12M | $25.99M | — | −1 |
| Q2 2024 | 8 | — | 14.75M | $14.75M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 6.41M | — | $16.67M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 6.41M | — | $16.67M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 6.41M | — | $16.67M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 6.41M | — | $16.67M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 6.41M | — | $16.67M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 6.41M | — | $16.67M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 6.41M | — | $16.67M | 0.0% | n/c | 1 | SEC ↗ |
| 8 | The Vanguard Group ✦ (passive) | 4.85M | — | $12.61M | 0.0% | n/c | 1 | SEC ↗ |
| 9 | The Vanguard Group ✦ (passive) | 4.85M | — | $12.61M | 0.0% | n/c | 1 | SEC ↗ |
| 10 | The Vanguard Group ✦ (passive) | 4.85M | — | $12.61M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | Adage Capital Partners ✦ | 4.42M | +11.3% | $11.50M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 12 | Fidelity (FMR) ✦ | 4.13M | — | $10.75M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | Fidelity (FMR) ✦ | 4.13M | — | $10.75M | 0.0% | n/c | 1 | SEC ↗ |
| 14 | Geode Capital Management ✦ (passive) | 2.32M | -1.9% | $6.03M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 15 | Geode Capital Management ✦ (passive) | 2.32M | -1.9% | $6.03M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 16 | State Street Global Advisors ✦ (passive) | 1.97M | +1.1% | $5.13M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 17 | Millennium Management ✦ | 851.21K | +56.2% | $2.21M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 18 | Wellington Management ✦ | 348.04K | +56.4% | $904,904 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 19 | Wellington Management ✦ | 348.04K | +56.4% | $904,904 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 20 | Wellington Management ✦ | 348.04K | +56.4% | $904,904 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 21 | Renaissance Technologies ✦ | 224.60K | -30.1% | $583,960 | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 22 | AQR Capital Management ✦ | 48.45K | New | $125,972 | 0.0% | New | 1 | SEC ↗ |
| 23 | AQR Capital Management ✦ | 48.45K | New | $125,972 | 0.0% | New | 1 | SEC ↗ |
| 24 | AQR Capital Management ✦ | 48.45K | New | $125,972 | 0.0% | New | 1 | SEC ↗ |
| 25 | AQR Capital Management ✦ | 48.45K | New | $125,972 | 0.0% | New | 1 | SEC ↗ |
| 26 | T. Rowe Price ✦ | 46.94K | 0.0% | $123,000 | 0.0% | Held | 5 | SEC ↗ |
| 27 | Two Sigma Investments ✦ | 16.10K | -68.6% | $41,852 | 0.0% | ▼ Trim | 5 | 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 | $125,972 | 0.0% |
| AQR Capital Management | $125,972 | 0.0% |
| AQR Capital Management | $125,972 | 0.0% |
| AQR Capital Management | $125,972 | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 199 holders, 172.39M shares, $913.59M 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.