CMPX
Compass Therapeutics, Inc. · Healthcare · Biotechnology
Momentum inputs (comparable managers):
holder breadth +14.3% ·
share flow -11.7% ·
net new positions +12.5%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 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 | Adage Capital Partners ✦ | 3.98M | -33.7% | $7.55M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 2.36M | +1.3% | $4.49M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 2.36M | +1.3% | $4.49M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 4 | State Street Global Advisors ✦ (passive) | 1.95M | +2.5% | $3.70M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | Millennium Management ✦ | 545.09K | +1510.0% | $1.04M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 6 | Renaissance Technologies ✦ | 321.50K | +15.4% | $610,850 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 7 | Wellington Management ✦ | 222.50K | New | $422,760 | 0.0% | New | 1 | SEC ↗ |
| 8 | Wellington Management ✦ | 222.50K | New | $422,760 | 0.0% | New | 1 | SEC ↗ |
| 9 | Two Sigma Investments ✦ | 51.24K | -64.7% | $97,354 | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 10 | T. Rowe Price ✦ | 46.94K | 0.0% | $90,000 | 0.0% | Held | 4 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Wellington Management | $422,760 | 0.0% |
| Wellington Management | $422,760 | 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.