Compass Therapeutics, Inc. (CMPX) Institutional Ownership & Insider Trading
215 institutions reported holding Compass Therapeutics, Inc. shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 2 insider trades on Form 4 since 2025-10-01.
Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason
CMPXCompass Therapeutics, Inc.Follow CMPX — free
—
Price chart with a free account
- Market cap
- 137.0M
- P/E TTM
- —
- Dividend yield
- —
- 52-week
- —
- Next earnings
- 11 Nov, in 18 days
Institutions · all 13F filers
quarter to 30 Jun 2026 · filers in both quarters215 institutions held 91.9% of the shares. Across filers that reported both quarters, shares held changed -5.2%.
Largest moves, shares (millions)
Institutional flow by quarter
net shares added or trimmed, millions · filers in both quarters| Quarter | Holders | Shares held, M | Change | Increased | New | Decreased | Closed |
|---|---|---|---|---|---|---|---|
| Jun 26 | 215 | 166 | -5.2% | 80 | 59 | 41 | 42 |
| Mar 26 | 199 | 174 | +9.4% | 71 | 42 | 44 | 16 |
| Dec 25 | 169 | 164 | +5.8% | 58 | 49 | 32 | 10 |
| Sep 25 | 121 | 153 | +41.2% | 42 | 26 | 28 | 8 |
| Jun 25 | 103 | 108 | -0.2% | 21 | 19 | 39 | 22 |
| Mar 25 | 107 | 109 | +7.4% | 28 | 24 | 27 | 9 |
| Dec 24 | 91 | 101 | +1.5% | 34 | 15 | 16 | 5 |
| Sep 24 | 79 | 92 | -1.1% | 23 | 9 | 18 | 13 |
Compass Therapeutics, Inc. — questions
- Who owns Compass Therapeutics, Inc. stock?
- 215 institutions reported Compass Therapeutics, Inc. shares in 13F filings for the quarter ended 2026-06-30. The largest: TANG CAPITAL MANAGEMENT LLC (10.0%), ORBIMED ADVISORS LLC (8.4%), SUVRETTA CAPITAL MANAGEMENT, LLC (7.8%).
- Are Compass Therapeutics, Inc. insiders buying or selling?
- 2 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.
Every figure on this page comes from Compass Therapeutics, Inc.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.
How these figures are read: methodology · EquiReason.