Compass TherapeuticsCMPX
13F holders, Q1 2026 (March 31)201holders +28
43new positions
18sold out
6famous investors
$5.31avg. 13F price*
At the end of Q1 2026, 201 institutions reported holding Compass Therapeutics Inc. (CMPX) in their 13F filings, up 28 from Q4 2025. 43 opened new positions and 18 sold out. The largest holders were Tang Capital Management LLC ($88.8M), Orbimed Advisors LLC ($80.5M) and Montanova Capital, LLC ($75.7M). 6 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio).
- Company
- Compass Therapeutics Inc.
- CUSIP
- 20454B104
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 43 | $33.1M |
| Exits | 18 | $20.9M |
All 13F filers, Q4 2025 → Q1 2026: 28,358,650 shares bought and 19,533,957 shares sold, net +8,824,693 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 201 holders
| Tang Capital Management LLC | 4.51% | No change | 16,790,809 | $88.8M |
| Orbimed Advisors LLC | 1.82% | No change | 15,219,994 | $80.5M |
| Montanova Capital, LLC | 2.05% | Add +0.9% | 14,307,379 | $75.7M |
| Vivo Capital, LLC | 4.20% | No change | 9,545,466 | $50.5M |
| BlackRock, Inc. | 0.00% | Add +1.3% | 9,506,080 | $50.3M |
| Adage Capital Partners Gp, L.L.C. | 0.07% | Add +91.3% | 8,486,500 | $44.9M |
| Enavate Sciences Gp, LLC | 11.72% | No change | 7,788,150 | $41.2M |
| BVF Inc. | 1.31% | No change | 7,764,842 | $41.1M |
| State Street Corp. | 0.00% | Add +36.9% | 6,694,976 | $35.4M |
| Vanguard Capital Management LLC | 0.00% | — | 6,037,175 | $31.9M |
| RTW Investments, LP | 0.22% | Add +67.5% | 4,186,599 | $22.1M |
| Deerfield Management Company, L.P. | 0.27% | No change | 3,606,000 | $19.1M |
| Geode Capital Management, LLC | 0.00% | Add +1.8% | 3,565,770 | $18.9M |
| Rock Springs Capital Management LP | 1.03% | Reduce -15.8% | 3,305,308 | $17.5M |
| Logos Global Management LP | 0.86% | Add +173.9% | 3,150,000 | $16.7M |
| Blue Owl Capital Holdings LP | 4.21% | Reduce -15.1% | 2,941,525 | $15.6M |
| Qube Research & Technologies Ltd | 0.02% | Add +477.3% | 2,550,356 | $13.5M |
| UBS Group AG | 0.00% | Add +1324.6% | 2,391,333 | $12.7M |
| Sofinnova Investments, Inc. | 0.55% | Reduce -38.9% | 2,056,161 | $10.9M |
| Goldman Sachs Group Inc. | 0.00% | Add +31.5% | 1,995,394 | $10.6M |
| Braidwell LP | 0.40% | Reduce -29.5% | 1,965,106 | $10.4M |
| Blackstone Inc. | 0.04% | Reduce -69.7% | 1,857,848 | $9.8M |
| FMR LLC | 0.00% | Reduce -30.2% | 1,801,721 | $9.5M |
| Royce & Associates LP | 0.08% | Add +466.4% | 1,619,798 | $8.6M |
| Ameriprise Financial Inc. | 0.00% | Add +94.0% | 1,596,815 | $8.4M |
| Palo Alto Investors LP | 1.23% | Reduce -40.2% | 1,514,504 | $8.0M |
| Birchview Capital, LP | 4.41% | Reduce -8.0% | 1,465,867 | $7.8M |
| Great Point Partners LLC | 1.75% | New | 1,350,000 | $7.1M |
| Fisher Asset Management | 0.00% | New | 1,348,259 | $7.1M |
| Balyasny Asset Management L.P. | 0.01% | Reduce -29.8% | 1,119,090 | $5.9M |
| Vanguard Portfolio Management LLC | 0.00% | — | 1,082,651 | $5.7M |
| Schonfeld Strategic Advisors LLC | 0.05% | Add +137.8% | 1,076,004 | $5.7M |
| Northern Trust Corp. | 0.00% | Add +7.8% | 1,048,558 | $5.5M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 998,140 | $5.3M |
| Bank of America Corp. | 0.00% | Add +224.9% | 865,613 | $4.6M |
| Silverarc Capital Management, LLC | 0.54% | Reduce -18.3% | 859,049 | $4.5M |
| Acuta Capital Partners, LLC | 3.19% | Reduce -22.3% | 849,076 | $4.5M |
| NEXTBio Capital Management LP | 2.08% | Reduce -23.9% | 848,204 | $4.5M |
| Millennium Management | 0.00% | Reduce -72.8% | 846,220 | $4.5M |
| Y-Intercept (Hong Kong) Ltd | 0.08% | Add +79.3% | 828,879 | $4.4M |
| JPMorgan Chase & Co. | 0.00% | Reduce -2.6% | 847,702 | $4.3M |
| Barclays PLC | 0.00% | Add +32.8% | 790,041 | $4.2M |
| Citadel Advisors | 0.00% | Add +582.6% | 721,410 | $3.8M |
| Burkehill Global Management, LP | 0.19% | No change | 700,000 | $3.7M |
| Citigroup Inc. | 0.00% | Add +128.4% | 598,238 | $3.2M |
| Atle Fund Management AB | 0.99% | Reduce -92.8% | 41,831 | $3.1M |
| Seven Fleet Capital Management LP | 0.86% | Reduce -9.1% | 516,972 | $2.7M |
| ArrowMark Colorado Holdings LLC | 0.07% | New | 514,793 | $2.7M |
| KVP Capital Advisors, LP | 1.98% | New | 500,000 | $2.6M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | Add +159.7% | 497,818 | $2.6M |
| Prudential Financial Inc. | 0.00% | Add +57.0% | 494,300 | $2.6M |
| Dimensional Fund Advisors LP | 0.00% | Add +28.7% | 439,784 | $2.3M |
| DV Trading LLC | 0.20% | Add +1649.8% | 423,566 | $2.2M |
| Trexquant Investment LP | 0.02% | New | 421,831 | $2.2M |
| Voya Investment Management LLC | 0.00% | Add +1558.6% | 375,320 | $2.0M |
| Jump Financial, LLC | 0.03% | New | 371,400 | $2.0M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -9.5% | 371,058 | $2.0M |
| Morgan Stanley | 0.00% | Reduce -1.3% | 360,372 | $1.9M |
| Wellington Management Group LLP | 0.00% | Add +13.7% | 360,125 | $1.9M |
| Atom Investors LP | 0.13% | Add +346.3% | 344,933 | $1.8M |
| Bank of New York Mellon Corp | 0.00% | Reduce -4.9% | 297,301 | $1.6M |
| Nuveen, LLC | 0.00% | Add +0.7% | 290,972 | $1.5M |
| Monashee Investment Management LLC | 0.88% | Reduce -74.1% | 258,865 | $1.4M |
| Swiss National Bank | 0.00% | New | 220,700 | $1.2M |
| AQR Capital Management | 0.00% | Add +29.1% | 200,428 | $1.1M |
| State of Wisconsin Investment Board | 0.00% | Add +8.0% | 200,279 | $1.1M |
| Rafferty Asset Management, LLC | 0.00% | Add +29.1% | 195,867 | $1.0M |
| Susquehanna International Group, LLP | 0.00% | Add +251.0% | 157,025 | $831K |
| Rhumbline Advisers | 0.00% | Add +9.2% | 147,016 | $778K |
| Alps Advisors Inc. | 0.00% | Add +0.4% | 146,607 | $776K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | New | 139,642 | $739K |
| ADAR1 Capital Management, LLC | 0.04% | No change | 139,000 | $735K |
| Tema ETFs LLC | 0.05% | Add +38.0% | 138,276 | $731K |
| Tidal Investments LLC | 0.00% | New | 138,276 | $731K |
| Deutsche Bank AG | 0.00% | Add +22.0% | 133,352 | $705K |
| Raymond James Financial Inc. | 0.00% | Add +52.1% | 121,889 | $645K |
| Rhenman & Partners Asset Management AB | 0.08% | New | 115,113 | $609K |
| California State Teachers Retirement System | 0.00% | Add +1294.2% | 112,316 | $594K |
| Creative Planning | 0.00% | Reduce -1.8% | 106,191 | $562K |
| Invesco Ltd. | 0.00% | Add +58.4% | 101,207 | $535K |
| T. Rowe Price Associates Inc. | 0.00% | Add +41.2% | 99,522 | $527K |
| Vanguard Global Advisers, LLC | 0.00% | — | 94,918 | $502K |
| Tudor Investment Corporation | 0.00% | New | 88,931 | $470K |
| Profund Advisors LLC | 0.02% | Add +53.2% | 87,681 | $464K |
| Harvest Investment Services, LLC | 0.08% | New | 87,652 | $464K |
| Alliancebernstein L.P. | 0.00% | No change | 83,940 | $451K |
| Optimize Financial Inc. | 0.21% | New | 80,439 | $426K |
| American Century Companies Inc. | 0.00% | Add +93.8% | 78,328 | $414K |
| DRW Securities, LLC | 0.02% | New | 76,493 | $405K |
| Legal & General Group Plc | 0.00% | Add +488.9% | 75,103 | $397K |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | — | 74,689 | $395K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +6.5% | 74,084 | $389K |
| Aquatic Capital Management LLC | 0.01% | New | 73,338 | $388K |
| Persistent Asset Partners Ltd | 0.15% | Add +26.1% | 72,193 | $382K |
| Engineers Gate Manager LP | 0.00% | New | 71,753 | $380K |
| XTX Topco Ltd | 0.01% | Reduce -39.4% | 70,121 | $371K |
| Manufacturers Life Insurance Company, The | 0.00% | Add +67.3% | 67,466 | $357K |
| Franklin Resources Inc. | 0.00% | No change | 66,607 | $352K |
| D. E. Shaw & Co. | 0.00% | Add +28.1% | 65,967 | $349K |
| MetLife Investment Management, LLC | 0.00% | Reduce -13.2% | 64,205 | $340K |
"% of holder's portfolio" is CMPX's weight in each manager's 13F, not the share of Compass Therapeutics Inc. the manager owns.