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CMPX

Compass Therapeutics, Inc.

Company with tickers: CMPX

CIK
1738021
CUSIP
20454B104
Shares Outstanding
180,087,915
Price History Institutional Holders Short Volume Short Interest Fails to Deliver Financials SEC Filings Earnings Calls Insider Trades Congressional Trades
Holders: 196
Total Value: $883,297,960
Total Shares: 166,975,060
Showing 1–100 of 202 holdings by value · page 1 of 3

Institutional Ownership Trend

18 quarters

Holder Concentration

Across 196 13F filers · Δ vs Dec 31, 2025
Top Holder
10.1%
−0.9 pts
Top 5
39.1%
−3.4 pts
Top 10
60.1%
−2.7 pts
HHI
457
Broadly held −58

Quarterly Activity

vs Dec 31, 2025
New
48
Increased
73
Decreased
48
Sold Out
21
Unchanged
27
Holder count: +27
Institutional value: +7.3%
Shares held: +9.0%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds
Large ADAGE CAPITAL PARTNERS GP, L.L.C. +4,050,000 8,486,500
Mega UBS Group AG +2,223,477 2,391,333
Large Qube Research & Technologies Ltd +2,108,551 2,550,356
Mid Logos Global Management LP +2,000,000 3,150,000
Mega STATE STREET CORP +1,804,451 6,694,976

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds
Large Blackstone Inc. −4,268,334 1,857,848
Mega MILLENNIUM MANAGEMENT LLC −2,263,066 846,220
Small Palo Alto Investors LP −1,017,915 1,514,504
Mid NORTHERN TRUST CORP −969,094 3,841
Mid BRAIDWELL LP −821,672 1,965,106

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD)
Small Blue Owl Capital Holdings LP 2,941,525 $15,560,667
Large Caption Management, LLC 1,359,700 $7,192,813
Small GREAT POINT PARTNERS LLC 1,350,000 $7,141,500
Mega Fisher Asset Management, LLC 1,348,259 $7,132,290
Small Ally Bridge Group (NY) LLC 1,000,000 $5,290,000

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD)
Small Trails Edge Capital Partners, LP 1,415,273 $7,600,016
Large MARSHALL WACE, LLP 1,263,647 $6,785,784
Mega VANGUARD GROUP INC 981,120 $5,268,614
Small HighVista Strategies LLC 245,532 $1,318,506
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 210,249 $1,129,037
100 of 100 shown
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Action
Mid TANG CAPITAL MANAGEMENT LLC $88,823,379 10.06% 16,790,809 View
Mid ORBIMED ADVISORS LLC $80,513,768 9.12% 15,219,994 View
Mid SUVRETTA CAPITAL MANAGEMENT, LLC $75,686,034 8.57% 14,307,379 View
Mid Vivo Capital, LLC $50,495,515 5.72% 9,545,466 View
Mega BlackRock, Inc. $50,287,160 5.69% 9,506,080 View
Large ADAGE CAPITAL PARTNERS GP, L.L.C. $44,893,585 5.08% 8,486,500 View
Small ENAVATE SCIENCES GP, LLC $41,199,313 4.66% 7,788,150 View
Mid BVF INC/IL $41,076,014 4.65% 7,764,842 View
Mega STATE STREET CORP $35,416,423 4.01% 6,694,976 View
Large RTW INVESTMENTS, LP $22,147,108 2.51% 4,186,599 View
Mid DEERFIELD MANAGEMENT COMPANY, L.P. $19,075,740 2.16% 3,606,000 View
Mega GEODE CAPITAL MANAGEMENT, LLC $18,862,922 2.14% 3,565,770 View
Mid Rock Springs Capital Management LP $17,485,079 1.98% 3,305,308 View
Mid Logos Global Management LP $16,663,500 1.89% 3,150,000 View
Small Blue Owl Capital Holdings LP $15,560,667 1.76% 2,941,525 View
Large Qube Research & Technologies Ltd $13,491,383 1.53% 2,550,356 View
Mega UBS Group AG $12,650,151 1.43% 2,391,333 View
Mid Sofinnova Investments, Inc. $10,877,091 1.23% 2,056,161 View
Mega GOLDMAN SACHS GROUP INC $10,555,633 1.20% 1,995,394 View
Mid BRAIDWELL LP $10,395,410 1.18% 1,965,106 View
Large Blackstone Inc. $9,828,015 1.11% 1,857,848 View
Mega FMR LLC $9,531,103 1.08% 1,801,721 View
Mid ROYCE & ASSOCIATES LP $8,568,731 0.97% 1,619,798 View
Mega AMERIPRISE FINANCIAL INC $8,447,151 0.96% 1,596,815 View
Small Palo Alto Investors LP $8,011,726 0.91% 1,514,504 View
Small Birchview Capital, LP $7,754,436 0.88% 1,465,867 View
Large Caption Management, LLC $7,192,813 0.81% 1,359,700 View
Small GREAT POINT PARTNERS LLC $7,141,500 0.81% 1,350,000 View
Mega Fisher Asset Management, LLC $7,132,290 0.81% 1,348,259 View
Large Balyasny Asset Management L.P. $5,919,986 0.67% 1,119,090 View
Large Schonfeld Strategic Advisors LLC $5,692,061 0.64% 1,076,004 View
Small Ally Bridge Group (NY) LLC $5,290,000 0.60% 1,000,000 View
Mega BANK OF AMERICA CORP /DE/ $4,579,092 0.52% 865,613 View
Small SILVERARC CAPITAL MANAGEMENT, LLC $4,544,369 0.51% 859,049 View
Small ACUTA CAPITAL PARTNERS, LLC $4,491,612 0.51% 849,076 View
Small NEXTBio Capital Management LP $4,486,999 0.51% 848,204 View
Mega JPMORGAN CHASE & CO $4,484,341 0.51% 847,702 View
Mega MILLENNIUM MANAGEMENT LLC $4,476,503 0.51% 846,220 View
Mid Y-Intercept (Hong Kong) Ltd $4,384,769 0.50% 828,879 View
Mega BARCLAYS PLC $4,179,316 0.47% 790,041 View
Mega CITADEL ADVISORS LLC $3,816,258 0.43% 721,410 View
Mid Burkehill Global Management, LP $3,703,000 0.42% 700,000 View
Mega CITIGROUP INC $3,164,678 0.36% 598,238 View
Small Seven Fleet Capital Management LP $2,734,781 0.31% 516,972 View
Mid ArrowMark Colorado Holdings LLC $2,723,254 0.31% 514,793 View
Mid Sofinnova Investments, Inc. $2,645,000 0.30% 500,000 View
Small KVP Capital Advisors, LP $2,645,000 0.30% 500,000 View
Large Connor, Clark & Lunn Investment Management Ltd. $2,633,457 0.30% 497,818 View
Large PRUDENTIAL FINANCIAL INC $2,614,847 0.30% 494,300 View
Mega DIMENSIONAL FUND ADVISORS LP $2,326,456 0.26% 439,784 View
Mid DV Trading LLC $2,240,664 0.25% 423,566 View
Large Trexquant Investment LP $2,231,485 0.25% 421,831 View
Large VOYA INVESTMENT MANAGEMENT LLC $1,985,441 0.22% 375,320 View
Mid Jump Financial, LLC $1,964,706 0.22% 371,400 View
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $1,962,896 0.22% 371,058 View
Mega WELLINGTON MANAGEMENT GROUP LLP $1,905,061 0.22% 360,125 View
Mid Atom Investors LP $1,824,695 0.21% 344,933 View
Mega Bank of New York Mellon Corp $1,572,721 0.18% 297,301 View
Mega Nuveen, LLC $1,539,240 0.17% 290,972 View
Small Monashee Investment Management LLC $1,369,395 0.16% 258,865 View
Mega Swiss National Bank $1,167,503 0.13% 220,700 View
Mega BARCLAYS PLC $1,095,559 0.12% 207,100 View
Mega AQR CAPITAL MANAGEMENT LLC $1,060,261 0.12% 200,428 View
Large STATE OF WISCONSIN INVESTMENT BOARD $1,059,475 0.12% 200,279 View
Large Rafferty Asset Management, LLC $1,036,136 0.12% 195,867 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $906,177 0.10% 171,300 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $830,662 0.09% 157,025 View
Mega RHUMBLINE ADVISERS $777,714 0.09% 147,016 View
Large ALPS ADVISORS INC $775,551 0.09% 146,607 View
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $738,705 0.08% 139,642 View
Mid ADAR1 Capital Management, LLC $735,310 0.08% 139,000 View
Mid Tema ETFs LLC $731,480 0.08% 138,276 View
Large Tidal Investments LLC $731,480 0.08% 138,276 View
Mega DEUTSCHE BANK AG\ $705,431 0.08% 133,352 View
Mega RAYMOND JAMES FINANCIAL INC $644,792 0.07% 121,889 View
Small Rhenman & Partners Asset Management AB $608,947 0.07% 115,113 View
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM $594,151 0.07% 112,316 View
Large Creative Planning $561,750 0.06% 106,191 View
Mega Invesco Ltd. $535,382 0.06% 101,207 View
Mega PRICE T ROWE ASSOCIATES INC /MD/ $526,471 0.06% 99,522 View
Mega CITADEL ADVISORS LLC $505,195 0.06% 95,500 View
Large TUDOR INVESTMENT CORP ET AL $470,444 0.05% 88,931 View
Mid PROFUND ADVISORS LLC $463,832 0.05% 87,681 View
Small Harvest Investment Services, LLC $463,679 0.05% 87,652 View
Mega ALLIANCEBERNSTEIN L.P. $444,042 0.05% 83,940 View
Small Optimize Financial Inc $425,522 0.05% 80,439 View
Mega AMERICAN CENTURY COMPANIES INC $414,355 0.05% 78,328 View
Mid DRW Securities, LLC $404,647 0.05% 76,493 View
Mega Legal & General Group Plc $397,293 0.04% 75,103 View
Mega CITADEL ADVISORS LLC $392,518 0.04% 74,200 View
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. $391,904 0.04% 74,084 View
Mid Aquatic Capital Management LLC $387,958 0.04% 73,338 View
Small Persistent Asset Partners Ltd $381,900 0.04% 72,193 View
Mid Engineers Gate Manager LP $379,573 0.04% 71,753 View
Mid XTX Topco Ltd $370,940 0.04% 70,121 View
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE $356,895 0.04% 67,466 View
Mega FRANKLIN RESOURCES INC $352,351 0.04% 66,607 View
Mega D. E. Shaw & Co., Inc. $348,965 0.04% 65,967 View
Large MetLife Investment Management, LLC $339,644 0.04% 64,205 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $335,386 0.04% 63,400 View
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