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 | $528.7M |
| Q2 2025 | 103 | $281.5M |
| Q1 2025 | 108 | $206.1M |
| Q4 2024 | 92 | $147.0M |
| Q3 2024 | 79 | $169.6M |
| Q2 2024 | 82 | $93.4M |
| Q1 2024 | 78 | $187.2M |
| Q4 2023 | 77 | $134.3M |
| Q3 2023 | 76 | $176.7M |
| Q2 2023 | 73 | $287.7M |
| Q1 2023 | 73 | $266.5M |
| Q4 2022 | 55 | $401.4M |
| Q3 2022 | 38 | $145.6M |
| 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 |
|---|---|---|---|---|---|
| Janus Henderson Group PLC | 55,600 | $293.8K | 0.00% | +55,600 | New |
| MetLife Investment Management | 64,205 | $339.6K | 0.00% | −9,780−13.2% | Reduced |
| D. E. Shaw & Co., Inc. | 65,967 | $349.0K | 0.00% | +14,485+28.1% | Added |
| Franklin Resources Inc | 66,607 | $352.4K | 0.00% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 67,466 | $356.9K | 0.00% | +27,141+67.3% | Added |
| XTX Topco Ltd | 70,121 | $370.9K | 0.01% | −45,513−39.4% | Reduced |
| Engineers Gate Manager LP | 71,753 | $379.6K | 0.00% | +71,753 | New |
| Persistent Asset Partners Ltd | 72,193 | $381.9K | 0.15% | +14,940+26.1% | Added |
| Aquatic Capital Management LLC | 73,338 | $388.0K | 0.01% | +73,338 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 74,084 | $389.3K | 0.00% | +4,508+6.5% | Added |
| Vanguard Asset Management, Ltd | 74,689 | $395.1K | 0.00% | +74,689 | New |
| Legal & General Group Plc | 75,103 | $397.3K | 0.00% | +62,350+488.9% | Added |
| DRW Securities, LLC | 76,493 | $404.6K | 0.02% | +76,493 | New |
| American Century Companies Inc | 78,328 | $414.4K | 0.00% | +37,916+93.8% | Added |
| Optimize Financial Inc | 80,439 | $425.5K | 0.21% | +80,439 | New |
| Alliancebernstein L.P. | 83,940 | $450.8K | 0.00% | 00.0% | Unchanged |
| Harvest Investment Services, LLC | 87,652 | $463.7K | 0.08% | +87,652 | New |
| Profund Advisors LLC | 87,681 | $463.8K | 0.02% | +30,435+53.2% | Added |
| Tudor Investment Corp Et Al | 88,931 | $470.4K | 0.00% | +88,931 | New |
| Vanguard Global Advisers, LLC | 94,918 | $502.1K | 0.00% | +94,918 | New |
| Price T Rowe Associates Inc | 99,522 | $527.0K | 0.00% | +29,034+41.2% | Added |
| Invesco Ltd. | 101,207 | $535.4K | 0.00% | +37,306+58.4% | Added |
| Creative Planning | 106,191 | $561.8K | 0.00% | −1,953−1.8% | Reduced |
| California State Teachers Retirement System | 112,316 | $594.2K | 0.00% | +104,260+1,294.2% | Added |
| Rhenman & Partners Asset Management AB | 115,113 | $608.9K | 0.08% | +115,113 | New |
| Raymond James Financial Inc | 121,889 | $644.8K | 0.00% | +41,747+52.1% | Added |
| Deutsche Bank AG | 133,352 | $705.4K | 0.00% | +24,079+22.0% | Added |
| 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 |
| ADAR1 Capital Management, LLC | 139,000 | $735.3K | 0.04% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 139,642 | $738.7K | 0.00% | +139,642 | New |
| Alps Advisors Inc | 146,607 | $775.6K | 0.00% | +567+0.4% | Added |
| Rhumbline Advisers | 147,016 | $777.7K | 0.00% | +12,411+9.2% | Added |
| Susquehanna International Group, LLP | 157,025 | $830.7K | 0.00% | +112,283+251.0% | Added |
| Rafferty Asset Management, LLC | 195,867 | $1.04M | 0.00% | +44,124+29.1% | Added |
| State of Wisconsin Investment Board | 200,279 | $1.06M | 0.00% | +14,856+8.0% | Added |
| AQR Capital Management LLC | 200,428 | $1.06M | 0.00% | +45,210+29.1% | Added |
| Swiss National Bank | 220,700 | $1.17M | 0.00% | +220,700 | New |
| Monashee Investment Management LLC | 258,865 | $1.37M | 0.74% | −741,135−74.1% | Reduced |
| Nuveen, LLC | 290,972 | $1.54M | 0.00% | +2,048+0.7% | Added |
| Bank of New York Mellon Corp | 297,301 | $1.57M | 0.00% | −15,179−4.9% | Reduced |
| Atom Investors LP | 344,933 | $1.82M | 0.13% | +267,652+346.3% | Added |
| Wellington Management Group LLP | 360,125 | $1.91M | 0.00% | +43,276+13.7% | Added |
| Morgan Stanley | 360,372 | $1.91M | 0.00% | −4,873−1.3% | Reduced |
| Charles Schwab Investment Management Inc | 371,058 | $1.96M | 0.00% | −39,099−9.5% | Reduced |
| Jump Financial, LLC | 371,400 | $1.96M | 0.03% | +371,400 | New |
| Voya Investment Management LLC | 375,320 | $1.99M | 0.00% | +352,691+1,558.6% | Added |
| Trexquant Investment LP | 421,831 | $2.23M | 0.02% | +421,831 | New |
| DV Trading LLC | 423,566 | $2.24M | 0.20% | +399,359+1,649.8% | Added |
| Dimensional Fund Advisors LP | 439,784 | $2.32M | 0.00% | +98,188+28.7% | Added |
| Prudential Financial Inc | 494,300 | $2.61M | 0.00% | +179,550+57.0% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 497,818 | $2.63M | 0.01% | +306,094+159.7% | Added |
| KVP Capital Advisors, LP | 500,000 | $2.65M | 1.98% | +500,000 | New |
| ArrowMark Colorado Holdings LLC | 514,793 | $2.72M | 0.07% | +514,793 | New |
| HealthInvest Partners AB | 41,831 | $3.05M | 0.99% | −542,501−92.8% | Reduced |
| Citigroup Inc | 598,238 | $3.16M | 0.00% | +336,362+128.4% | Added |
| Burkehill Global Management, LP | 700,000 | $3.70M | 0.18% | 00.0% | Unchanged |
| Citadel Advisors LLC | 721,410 | $3.82M | 0.00% | +615,728+582.6% | Added |
| Barclays PLC | 790,041 | $4.18M | 0.00% | +195,265+32.8% | Added |
| JPMorgan Chase & Co | 847,702 | $4.32M | 0.00% | −22,312−2.6% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 828,879 | $4.38M | 0.08% | +366,713+79.3% | Added |
| Millennium Management LLC | 846,220 | $4.48M | 0.00% | −2,263,066−72.8% | Reduced |
| NEXTBio Capital Management LP | 848,204 | $4.49M | 2.08% | −265,801−23.9% | Reduced |
| Acuta Capital Partners, LLC | 849,076 | $4.49M | 3.19% | −244,224−22.3% | Reduced |
| Silverarc Capital Management, LLC | 859,049 | $4.54M | 0.54% | −192,294−18.3% | Reduced |
| Bank of America Corp | 865,613 | $4.58M | 0.00% | +599,179+224.9% | Added |
| Seven Fleet Capital Management LP | 940,538 | $4.98M | 1.56% | +371,791+65.4% | Added |
| Vanguard Fiduciary Trust Co | 998,140 | $5.28M | 0.00% | +998,140 | New |
| Northern Trust Corp | 1,048,558 | $5.55M | 0.00% | +75,623+7.8% | Added |
| Schonfeld Strategic Advisors LLC | 1,076,004 | $5.69M | 0.05% | +623,562+137.8% | Added |
| Vanguard Portfolio Management LLC | 1,082,651 | $5.73M | 0.00% | +1,082,651 | New |
| Balyasny Asset Management LLC | 1,119,090 | $5.92M | 0.01% | −474,185−29.8% | Reduced |
| Fisher Asset Management, LLC | 1,348,259 | $7.13M | 0.00% | +1,348,259 | New |
| Great Point Partners LLC | 1,350,000 | $7.14M | 1.75% | +1,350,000 | New |
| Birchview Capital, LP | 1,465,867 | $7.75M | 4.41% | −127,071−8.0% | Reduced |
| Palo Alto Investors LP | 1,514,504 | $8.01M | 1.23% | −1,017,915−40.2% | Reduced |
| Ameriprise Financial Inc | 1,596,815 | $8.45M | 0.00% | +773,641+94.0% | Added |
| Royce & Associates LP | 1,619,798 | $8.57M | 0.08% | +1,333,810+466.4% | Added |
| FMR LLC | 1,801,721 | $9.53M | 0.00% | −777,990−30.2% | Reduced |
| Blackstone Group Inc. | 1,857,848 | $9.83M | 0.04% | −4,268,334−69.7% | Reduced |
| Braidwell LP | 1,965,106 | $10.4M | 0.35% | −821,672−29.5% | Reduced |
| Goldman Sachs Group Inc | 1,995,394 | $10.6M | 0.00% | +477,979+31.5% | Added |
| Sofinnova Investments, Inc. | 2,056,161 | $10.9M | 0.54% | −1,309,285−38.9% | Reduced |
| UBS Group AG | 2,391,333 | $12.7M | 0.00% | +2,223,477+1,324.6% | Added |
| Qube Research & Technologies Ltd | 2,550,356 | $13.5M | 0.02% | +2,108,551+477.3% | Added |
| Blue Owl Capital Holdings LP | 2,941,525 | $15.6M | 4.18% | −525,000−15.1% | Reduced |
| Logos Global Management LP | 3,150,000 | $16.7M | 0.86% | +2,000,000+173.9% | Added |
| Rock Springs Capital Management LP | 3,305,308 | $17.5M | 1.03% | −621,894−15.8% | Reduced |
| Geode Capital Management, LLC | 3,565,770 | $18.9M | 0.00% | +63,244+1.8% | Added |
| Deerfield Management Company, L.P. (Series C) | 3,606,000 | $19.1M | 0.23% | 00.0% | Unchanged |
| RTW Investments, LP | 4,186,599 | $22.1M | 0.22% | +1,686,599+67.5% | Added |
| Vanguard Capital Management LLC | 6,037,175 | $31.9M | 0.00% | +6,037,175 | New |
| State Street Corp | 6,694,976 | $35.4M | 0.00% | +1,804,451+36.9% | Added |
| BVF Inc | 7,764,842 | $41.1M | 1.31% | 00.0% | Unchanged |
| Enavate Sciences GP, LLC | 7,788,150 | $41.2M | 11.72% | 00.0% | Unchanged |
| Adage Capital Partners GP, L.L.C. | 8,486,500 | $44.9M | 0.07% | +4,050,000+91.3% | Added |
| BlackRock, Inc. | 9,506,080 | $50.3M | 0.00% | +117,456+1.3% | Added |
| Vivo Capital, LLC | 9,545,466 | $50.5M | 4.20% | 00.0% | Unchanged |
| Suvretta Capital Management, LLC | 14,307,379 | $75.7M | 2.05% | +125,000+0.9% | Added |
| OrbiMed Advisors LLC | 15,219,994 | $80.5M | 1.83% | 00.0% | Unchanged |