Compass Therapeutics, Inc.
CMPX- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001738021
In the last 90 days, Compass Therapeutics, Inc. insiders filed 1 open-market purchase and 0 sales; 215 institutions reported holding it in 13F filings for Q2 2026, worth $363.4M in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Compass Therapeutics, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 201
- +31 vs. Q4 2025
- Shares held
- 173.7M
- +17.6M (+11.3%) vs. Q4 2025
- Total value
- $921.3M
- +$83.2M (+9.9%) vs. Q4 2025
- New holders
- 50
- 76 more added
- Sold out
- 19
- 47 more reduced
3 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting CMPX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 215 | $363.4M |
| Q1 2026 | 201 | $921.3M |
| Q4 2025 | 173 | $881.5M |
| Q3 2025 | 125 | $535.7M |
| Q2 2025 | 103 | $281.9M |
| Q1 2025 | 108 | $206.1M |
| Q4 2024 | 92 | $147.0M |
| Q3 2024 | 79 | $169.7M |
| Q2 2024 | 82 | $93.5M |
| Q1 2024 | 78 | $187.9M |
| Q4 2023 | 77 | $134.8M |
| Q3 2023 | 76 | $176.7M |
| Q2 2023 | 73 | $287.7M |
| Q1 2023 | 73 | $285.1M |
| Q4 2022 | 55 | $401.4M |
| Q3 2022 | 38 | $153.7M |
| Q2 2022 | 34 | $163.9M |
| Q1 2022 | 34 | $85.4M |
| Q4 2021 | 37 | $201.6M |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Compass Therapeutics, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Tang Capital Management LLC | 16,790,809 | $88.8M | 4.51% | 00.0% | Unchanged |
| OrbiMed Advisors LLC | 15,219,994 | $80.5M | 1.76% | 00.0% | Unchanged |
| Suvretta Capital Management, LLC | 14,307,379 | $75.7M | 2.05% | +125,000+0.9% | Added |
| Vivo Capital, LLC | 9,545,466 | $50.5M | 4.20% | 00.0% | Unchanged |
| BlackRock, Inc. | 9,506,080 | $50.3M | 0.00% | +117,456+1.3% | Added |
| Adage Capital Partners GP, L.L.C. | 8,486,500 | $44.9M | 0.07% | +4,050,000+91.3% | Added |
| Enavate Sciences GP, LLC | 7,788,150 | $41.2M | 11.72% | 00.0% | Unchanged |
| BVF Inc | 7,764,842 | $41.1M | 1.31% | 00.0% | Unchanged |
| State Street Corp | 6,694,976 | $35.4M | 0.00% | +1,804,451+36.9% | Added |
| Vanguard Capital Management LLC | 6,037,175 | $31.9M | 0.00% | +6,037,175 | New |
| RTW Investments, LP | 4,186,599 | $22.1M | 0.22% | +1,686,599+67.5% | Added |
| Deerfield Management Company, L.P. (Series C) | 3,606,000 | $19.1M | 0.23% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 3,565,770 | $18.9M | 0.00% | +63,244+1.8% | Added |
| Rock Springs Capital Management LP | 3,305,308 | $17.5M | 1.03% | −621,894−15.8% | Reduced |
| Logos Global Management LP | 3,150,000 | $16.7M | 0.86% | +2,000,000+173.9% | Added |
| Blue Owl Capital Holdings LP | 2,941,525 | $15.6M | 4.18% | −525,000−15.1% | Reduced |
| Qube Research & Technologies Ltd | 2,550,356 | $13.5M | 0.02% | +2,108,551+477.3% | Added |
| UBS Group AG | 2,391,333 | $12.7M | 0.00% | +2,223,477+1,324.6% | Added |
| Sofinnova Investments, Inc. | 2,056,161 | $10.9M | 0.54% | −1,309,285−38.9% | Reduced |
| Goldman Sachs Group Inc | 1,995,394 | $10.6M | 0.00% | +477,979+31.5% | Added |
| Braidwell LP | 1,965,106 | $10.4M | 0.35% | −821,672−29.5% | Reduced |
| Blackstone Group Inc. | 1,857,848 | $9.83M | 0.04% | −4,268,334−69.7% | Reduced |
| FMR LLC | 1,801,721 | $9.53M | 0.00% | −777,990−30.2% | Reduced |
| Royce & Associates LP | 1,619,798 | $8.57M | 0.08% | +1,333,810+466.4% | Added |
| Ameriprise Financial Inc | 1,596,815 | $8.45M | 0.00% | +773,641+94.0% | Added |
| Palo Alto Investors LP | 1,514,504 | $8.01M | 1.23% | −1,017,915−40.2% | Reduced |
| Birchview Capital, LP | 1,465,867 | $7.75M | 4.41% | −127,071−8.0% | Reduced |
| Great Point Partners LLC | 1,350,000 | $7.14M | 1.75% | +1,350,000 | New |
| Fisher Asset Management, LLC | 1,348,259 | $7.13M | 0.00% | +1,348,259 | New |
| Balyasny Asset Management LLC | 1,119,090 | $5.92M | 0.01% | −474,185−29.8% | Reduced |
| Vanguard Portfolio Management LLC | 1,082,651 | $5.73M | 0.00% | +1,082,651 | New |
| Schonfeld Strategic Advisors LLC | 1,076,004 | $5.69M | 0.05% | +623,562+137.8% | Added |
| Northern Trust Corp | 1,048,558 | $5.55M | 0.00% | +75,623+7.8% | Added |
| Vanguard Fiduciary Trust Co | 998,140 | $5.28M | 0.00% | +998,140 | New |
| Seven Fleet Capital Management LP | 940,538 | $4.98M | 1.56% | +371,791+65.4% | Added |
| Bank of America Corp | 865,613 | $4.58M | 0.00% | +599,179+224.9% | Added |
| Silverarc Capital Management, LLC | 859,049 | $4.54M | 0.54% | −192,294−18.3% | Reduced |
| Acuta Capital Partners, LLC | 849,076 | $4.49M | 3.19% | −244,224−22.3% | Reduced |
| NEXTBio Capital Management LP | 848,204 | $4.49M | 2.08% | −265,801−23.9% | Reduced |
| Millennium Management LLC | 846,220 | $4.48M | 0.00% | −2,263,066−72.8% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 828,879 | $4.38M | 0.08% | +366,713+79.3% | Added |
| JPMorgan Chase & Co | 847,702 | $4.32M | 0.00% | −22,312−2.6% | Reduced |
| Barclays PLC | 790,041 | $4.18M | 0.00% | +195,265+32.8% | Added |
| Citadel Advisors LLC | 721,410 | $3.82M | 0.00% | +615,728+582.6% | Added |
| Burkehill Global Management, LP | 700,000 | $3.70M | 0.18% | 00.0% | Unchanged |
| Citigroup Inc | 598,238 | $3.16M | 0.00% | +336,362+128.4% | Added |
| HealthInvest Partners AB | 41,831 | $3.05M | 0.99% | −542,501−92.8% | Reduced |
| ArrowMark Colorado Holdings LLC | 514,793 | $2.72M | 0.07% | +514,793 | New |
| KVP Capital Advisors, LP | 500,000 | $2.65M | 1.98% | +500,000 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 497,818 | $2.63M | 0.01% | +306,094+159.7% | Added |
| Prudential Financial Inc | 494,300 | $2.61M | 0.00% | +179,550+57.0% | Added |
| Dimensional Fund Advisors LP | 439,784 | $2.32M | 0.00% | +98,188+28.7% | Added |
| DV Trading LLC | 423,566 | $2.24M | 0.20% | +399,359+1,649.8% | Added |
| Trexquant Investment LP | 421,831 | $2.23M | 0.02% | +421,831 | New |
| Voya Investment Management LLC | 375,320 | $1.99M | 0.00% | +352,691+1,558.6% | Added |
| Jump Financial, LLC | 371,400 | $1.96M | 0.03% | +371,400 | New |
| Charles Schwab Investment Management Inc | 371,058 | $1.96M | 0.00% | −39,099−9.5% | Reduced |
| Morgan Stanley | 360,372 | $1.91M | 0.00% | −4,873−1.3% | Reduced |
| Wellington Management Group LLP | 360,125 | $1.91M | 0.00% | +43,276+13.7% | Added |
| Atom Investors LP | 344,933 | $1.82M | 0.13% | +267,652+346.3% | Added |
| Bank of New York Mellon Corp | 297,301 | $1.57M | 0.00% | −15,179−4.9% | Reduced |
| Nuveen, LLC | 290,972 | $1.54M | 0.00% | +2,048+0.7% | Added |
| Monashee Investment Management LLC | 258,865 | $1.37M | 0.74% | −741,135−74.1% | Reduced |
| Swiss National Bank | 220,700 | $1.17M | 0.00% | +220,700 | New |
| AQR Capital Management LLC | 200,428 | $1.06M | 0.00% | +45,210+29.1% | Added |
| State of Wisconsin Investment Board | 200,279 | $1.06M | 0.00% | +14,856+8.0% | Added |
| Rafferty Asset Management, LLC | 195,867 | $1.04M | 0.00% | +44,124+29.1% | Added |
| Susquehanna International Group, LLP | 157,025 | $830.7K | 0.00% | +112,283+251.0% | Added |
| Rhumbline Advisers | 147,016 | $777.7K | 0.00% | +12,411+9.2% | Added |
| Alps Advisors Inc | 146,607 | $775.6K | 0.00% | +567+0.4% | Added |
| UBS Asset Management Americas Inc | 139,642 | $738.7K | 0.00% | +139,642 | New |
| ADAR1 Capital Management, LLC | 139,000 | $735.3K | 0.04% | 00.0% | Unchanged |
| Tema ETFs LLC | 138,276 | $731.5K | 0.05% | +38,100+38.0% | Added |
| Toroso Investments, LLC | 138,276 | $731.5K | 0.00% | +138,276 | New |
| Deutsche Bank AG | 133,352 | $705.4K | 0.00% | +24,079+22.0% | Added |
| Raymond James Financial Inc | 121,889 | $644.8K | 0.00% | +41,747+52.1% | Added |
| Rhenman & Partners Asset Management AB | 115,113 | $608.9K | 0.08% | +115,113 | New |
| California State Teachers Retirement System | 112,316 | $594.2K | 0.00% | +104,260+1,294.2% | Added |
| Creative Planning | 106,191 | $561.8K | 0.00% | −1,953−1.8% | Reduced |
| Invesco Ltd. | 101,207 | $535.4K | 0.00% | +37,306+58.4% | Added |
| Price T Rowe Associates Inc | 99,522 | $527.0K | 0.00% | +29,034+41.2% | Added |
| Vanguard Global Advisers, LLC | 94,918 | $502.1K | 0.00% | +94,918 | New |
| Tudor Investment Corp Et Al | 88,931 | $470.4K | 0.00% | +88,931 | New |
| Profund Advisors LLC | 87,681 | $463.8K | 0.02% | +30,435+53.2% | Added |
| Harvest Investment Services, LLC | 87,652 | $463.7K | 0.08% | +87,652 | New |
| Alliancebernstein L.P. | 83,940 | $450.8K | 0.00% | 00.0% | Unchanged |
| Optimize Financial Inc | 80,439 | $425.5K | 0.21% | +80,439 | New |
| American Century Companies Inc | 78,328 | $414.4K | 0.00% | +37,916+93.8% | Added |
| DRW Securities, LLC | 76,493 | $404.6K | 0.02% | +76,493 | New |
| Legal & General Group Plc | 75,103 | $397.3K | 0.00% | +62,350+488.9% | Added |
| Vanguard Asset Management, Ltd | 74,689 | $395.1K | 0.00% | +74,689 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 74,084 | $389.3K | 0.00% | +4,508+6.5% | Added |
| Aquatic Capital Management LLC | 73,338 | $388.0K | 0.01% | +73,338 | New |
| Persistent Asset Partners Ltd | 72,193 | $381.9K | 0.15% | +14,940+26.1% | Added |
| Engineers Gate Manager LP | 71,753 | $379.6K | 0.00% | +71,753 | New |
| XTX Topco Ltd | 70,121 | $370.9K | 0.01% | −45,513−39.4% | Reduced |
| Manufacturers Life Insurance Company, The | 67,466 | $356.9K | 0.00% | +27,141+67.3% | Added |
| Franklin Resources Inc | 66,607 | $352.4K | 0.00% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 65,967 | $349.0K | 0.00% | +14,485+28.1% | Added |
| MetLife Investment Management | 64,205 | $339.6K | 0.00% | −9,780−13.2% | Reduced |