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Compass Therapeutics (CMPX) Institutional Ownership

Compass Therapeutics logo
$2.40 -0.12 (-4.76%)
As of 08/28/2026 04:00 PM Eastern
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Institutional Ownership Changes (13F Filings) for Compass Therapeutics (NASDAQ:CMPX)

Current
Institutional Ownership
Percentage
68.43%
Number of
Institutional Buyers
(last 12 months)
109
Total
Institutional Inflows
(last 12 months)
$237.41M
Number of
Institutional Sellers
(last 12 months)
25
Total
Institutional Outflows
(last 12 months)
$39.72M
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CMPX Institutional Buying and Selling by Quarter

Compass Therapeutics Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/25/2026 VIRGINIA RETIREMENT SYSTEMS ET Al32,300$71K0.0%N/A0.018%
8/24/2026 California State Teachers Retirement System148,291$325K0.0%+32.0%0.082%
8/23/2026 HB Wealth Management LLC13,058$29K0.0%N/A0.007%
8/22/2026 Seven Fleet Capital Management LP233,066$510K0.1%-75.2%0.129%
8/21/2026 AXQ Capital LP42,118$92K0.0%+68.1%0.023%
8/20/2026 Montanova Capital LLC14,101,159$30.88M0.5%-1.4%7.830%
8/20/2026 Two Sigma Securities LLC29,451$64K0.0%N/A0.016%
8/19/2026 UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC177,814$389K0.0%+27.3%0.099%
8/19/2026 Wellington Management Group LLP378,687$829K0.0%+5.2%0.210%
8/18/2026 Palo Alto Investors LP5,831,813$12.77M0.0%N/A3.238%
8/17/2026 Seven Fleet Capital Management LP233,066$510.42K0.0%N/A0.129%
8/17/2026 Artia Global Partners LP383,200$839K0.2%N/A0.213%
8/17/2026 Bank of America Corp DE566,919$1.24M0.0%N/A0.315%
8/15/2026 Jupiter Topco LLC55,600$121K0.0%N/A0.031%
8/14/2026 ADAR1 Capital Management LLC122,132$267K0.0%N/A0.068%
8/14/2026 Canada Pension Plan Investment Board160,900$352K0.0%N/A0.089%
8/14/2026 Legal & General Group Plc75,103$164K0.0%N/A0.042%
8/14/2026 The Manufacturers Life Insurance Company 68,217$149K0.0%N/A0.038%
8/14/2026 Algert Global LLC308,110$675K0.0%+737.7%0.171%
8/13/2026 Connor Clark & Lunn Investment Management Ltd.523,777$1.15M0.0%N/A0.291%
8/12/2026 Quantbot Technologies LP60,826$133K0.0%N/A0.034%
8/12/2026 Ieq Capital LLC122,948$269K0.0%N/A0.068%
8/11/2026 E Fund Management Co. Ltd.26,808$59K0.0%N/A0.015%
8/7/2026 BlackRock Inc.11,281,781$24.71M0.0%N/A6.265%
8/7/2026 Deutsche Bank AG134,350$294K0.0%N/A0.075%
8/7/2026 Simplicity Wealth LLC36,480$80K0.0%N/A0.020%
8/6/2026 Bank of New York Mellon Corp351,032$769K0.0%N/A0.195%
8/6/2026 State of Wyoming14,065$31K0.0%N/A0.008%
8/6/2026 GSA Capital Partners LLP70,179$154K0.0%N/A0.039%
8/3/2026 Walleye Trading LLC25,000$55K0.0%N/A0.014%
7/10/2026 Wealthcare Advisory Partners LLC60,962$134K0.0%N/A0.034%
7/9/2026 Wealthcare Capital Partners LLC19,654$43K0.0%N/A0.011%
6/4/2026 Seven Fleet Capital Management LP940,538$4.98M1.6%+65.4%0.522%
6/3/2026 DV Trading LLC423,566$2.24M0.1%+1,649.8%0.235%
6/3/2026 Parallel Advisors LLC5,250$28K0.0%N/A0.003%
5/19/2026 Bank of America Corp DE865,613$4.58M0.0%+224.9%0.481%
5/19/2026Janus Henderson Group PLC55,600$294K0.0%N/A0.031%
5/18/2026 California State Teachers Retirement System112,316$594K0.0%+1,294.2%0.062%
5/18/2026 Rock Springs Capital Management LP3,305,308$17.49M1.0%-15.8%1.835%
5/16/2026 The Manufacturers Life Insurance Company67,466$357K0.0%+67.3%0.037%
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5/14/2026 Monashee Investment Management LLC258,865$1.37M0.7%-74.1%0.144%
5/8/2026 PNC Financial Services Group Inc.11,038$58K0.0%+2,572.6%0.006%
5/7/2026 Dimensional Fund Advisors LP439,784$2.32M0.0%+28.7%0.244%
5/7/2026 Swiss National Bank220,700$1.17M0.0%N/A0.123%
5/6/2026 Independent Financial Group LLC22,779$121K0.0%N/A0.013%
5/5/2026 Bank of New York Mellon Corp297,301$1.57M0.0%-4.9%0.165%
5/1/2026 Simplicity Wealth LLC28,350$150K0.0%-16.3%0.016%
4/28/2026 Abel Hall LLC10,524$56K0.0%-54.0%0.006%
4/27/2026 Y Intercept Hong Kong Ltd828,879$4.39M0.1%+79.3%0.460%
4/22/2026 Pictet Asset Management Holding SA14,432$76K0.0%N/A0.008%
4/16/2026 SG Americas Securities LLC47,670$252K0.0%-55.3%0.026%
3/3/2026 Caitong International Asset Management Co. Ltd24,579$132K0.0%N/A0.014%
2/26/2026 Seven Fleet Capital Management LP568,747$3.05M2.3%N/A0.320%
2/19/2026 Invesco Ltd.63,901$343K0.0%+5.3%0.036%
2/18/2026 XTX Topco Ltd115,634$621K0.0%+582.2%0.065%
2/18/2026 Ikarian Capital LLC800,000$4.30M0.3%N/A0.450%
2/18/2026 Virtus Investment Advisers LLC51,556$277K0.1%N/A0.029%
2/18/2026 SummitTX Capital L.P.81,449$437K0.0%N/A0.046%
2/18/2026 Tang Capital Management LLC16,790,809$90.17M4.5%-0.1%9.440%
2/18/2026 Suvretta Capital Management LLC14,182,379$76.16M1.6%+0.6%7.974%
2/18/2026 Quadrature Capital Ltd12,293$66K0.0%-74.1%0.007%
2/18/2026 Millennium Management LLC3,109,286$16.70M0.0%-4.0%1.748%
2/18/2026 Balyasny Asset Management L.P.1,593,275$8.56M0.0%-43.6%0.896%
2/18/2026 Boothbay Fund Management LLC205,024$1.10M0.0%N/A0.115%
2/18/2026 BVF Inc. IL7,764,842$41.70M1.4%+63.5%4.366%
2/17/2026 Logos Global Management LP1,150,000$6.18M0.4%-43.9%0.647%
2/17/2026 ADAR1 Capital Management LLC139,000$746K0.1%+178.0%0.078%
2/17/2026 Schonfeld Strategic Advisors LLC452,442$2.43M0.0%-5.0%0.254%
2/17/2026 AQR Capital Management LLC155,218$834K0.0%+162.4%0.087%
2/17/2026 Braidwell LP2,786,778$14.97M0.5%N/A1.567%
2/17/2026 Abel Hall LLC22,882$123K0.0%N/A0.013%
2/17/2026 Price T Rowe Associates Inc. MD70,488$379K0.0%+24.6%0.040%
2/17/2026 Rock Springs Capital Management LP3,927,202$21.09M1.1%-12.2%2.208%
2/17/2026 Adage Capital Partners GP L.L.C.4,436,500$23.82M0.0%-14.5%2.494%
2/17/2026 Russell Investments Group Ltd.11,558$62K0.0%+48.5%0.006%
2/17/2026 Atom Investors LP77,281$415K0.0%-27.6%0.043%
2/17/2026 State of Wisconsin Investment Board185,423$996K0.0%+347.9%0.104%
2/17/2026 Graham Capital Management L.P.53,427$287K0.0%N/A0.030%
2/17/2026 Persistent Asset Partners Ltd57,253$307K0.1%N/A0.032%
2/16/2026 Squarepoint Ops LLC126,192$678K0.0%+43.6%0.071%
2/16/2026 Sofinnova Investments Inc.3,365,446$18.07M0.7%+65.9%1.892%
2/16/2026 NEXTBio Capital Management LP1,114,005$5.98M3.5%N/A0.626%
2/16/2026 Barclays PLC594,776$3.19M0.0%+167.4%0.334%
2/13/2026 Marshall Wace LLP1,263,647$6.79M0.0%N/A0.710%
2/13/2026 The Manufacturers Life Insurance Company 40,325$217K0.0%+21.6%0.023%
2/13/2026 Stifel Financial Corp23,973$129K0.0%N/A0.013%
2/13/2026 Rafferty Asset Management LLC151,743$815K0.0%+113.8%0.085%
2/13/2026 Birchview Capital LP1,592,938$8.55M5.0%+82.5%0.896%
2/13/2026 Charles Schwab Investment Management Inc.410,157$2.20M0.0%+22.3%0.231%
2/13/2026 Police & Firemen s Retirement System of New Jersey35,503$191K0.0%+25.3%0.020%
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2/13/2026 State Street Corp4,890,525$26.26M0.0%+57.4%2.750%
2/13/2026 Caitong International Asset Management Co. Ltd17,879$96K0.3%N/A0.010%
2/13/2026 Wells Fargo & Company MN144,798$778K0.0%+112.4%0.081%
2/12/2026 Jane Street Group LLC70,063$376K0.0%+57.5%0.039%
2/12/2026 MetLife Investment Management LLC73,985$397K0.0%+26.8%0.042%
2/12/2026 Dimensional Fund Advisors LP341,596$1.84M0.0%+94.6%0.192%
2/12/2026 EntryPoint Capital LLC13,163$71K0.0%N/A0.007%
2/12/2026 Alps Advisors Inc.146,040$784K0.0%+75.9%0.082%
2/12/2026 Monashee Investment Management LLC1,000,000$5.37M3.0%-20.0%0.562%
2/12/2026 Nuveen LLC288,924$1.55M0.0%+11.5%0.162%


CMPX Institutional Ownership - Frequently Asked Questions

During the previous two years, 153 institutional investors and hedge funds held shares of Compass Therapeutics. The most heavily invested institutionals were Tang Capital Management LLC ($90.17M), Suvretta Capital Management LLC ($76.16M), BVF Inc. IL ($41.70M), Orbimed Advisors LLC ($39.57M), Vivo Capital LLC ($33.41M), Montanova Capital LLC ($30.88M), and State Street Corp ($26.26M).Learn more on Compass Therapeutics' institutional investors.

68.43% of Compass Therapeutics' stock is owned by institutional investors. Learn more on CMPX's institutional investor holdings.

Of the 134 institutional investors that purchased Compass Therapeutics' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BlackRock Inc. ($11.28M), Enavate Sciences GP LLC ($7.79M), Suvretta Capital Management LLC ($7.03M), Vivo Capital LLC ($5.99M), Palo Alto Investors LP ($5.83M), Tang Capital Management LLC ($4.09M), and BVF Inc. IL ($3.01M).

Institutional investors have bought a total of 64,087,128 shares in the last 24 months. This purchase volume represents approximately $237.41M in transactions.

Of the 25 institutional investors that sold Compass Therapeutics' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: JPMorgan Chase & Co. ($1.38M), Balyasny Asset Management L.P. ($1.23M), Rock Springs Capital Management LP ($1.17M), Monashee Investment Management LLC ($991.14K), Logos Global Management LP ($900K), Adage Capital Partners GP L.L.C. ($750K), and Seven Fleet Capital Management LP ($707.47K).

Institutional investors have sold a total of 8,198,428 shares in the last 24 months. This volume of shares sold represents approximately $39.72M in transactions.


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Institutional ownership data for NASDAQ:CMPX is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/25/2026. New 13F filings are added each quarter as they're published.
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