Compass Therapeutics (CMPX) Institutional Ownership $2.10 -0.01 (-0.47%) Closing price 04:00 PM EasternExtended Trading$2.13 +0.03 (+1.43%) As of 06:52 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Compass Therapeutics (NASDAQ:CMPX)CurrentInstitutional OwnershipPercentage68.43%Number ofInstitutional Buyers(last 12 months)48TotalInstitutional Inflows(last 12 months)$33.93MNumber ofInstitutional Sellers(last 12 months)22TotalInstitutional Outflows(last 12 months)$21.05M Get CMPX Insider Trade Alerts Want to know when executives and insiders are buying or selling Compass Therapeutics stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. Email Address Skip Chart & View Institutional Buying and Selling Data CMPX Institutional Buying and Selling by Quarter Compass Therapeutics Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails5/28/2025Strs Ohio17,900$34K0.0%N/A0.013% 5/16/2025 Goldman Sachs Group Inc.233,522$444K0.0%-40.2%0.169% 5/16/2025 Adage Capital Partners GP L.L.C.3,975,000$7.55M0.0%-33.7%2.875% 5/15/2025 Birchview Capital LP24,000$46K0.0%N/A0.017% 5/15/2025 MPM Bioimpact LLC8,442,783$16.04M2.8%-1.5%6.105% 5/15/2025 Baker BROS. Advisors LP547,498$1.04M0.0%-64.9%0.396% 5/15/2025 Propel Bio Management LLC228,317$434K0.5%N/A0.165% 5/14/2025 MetLife Investment Management LLC37,167$71K0.0%-41.1%0.027% 5/14/2025 Walleye Trading LLC25,000$48K0.0%N/A0.018% 5/14/2025 Walleye Capital LLC52,478$100K0.0%N/A0.038% Get the Latest News and Ratings for CMPX and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Compass Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 5/14/2025 Wellington Management Group LLP222,505$423K0.0%N/A0.161% 5/13/2025 American Century Companies Inc.73,682$140K0.0%N/A0.053% 5/12/2025 Nuveen LLC304,504$579K0.0%N/A0.220% 5/9/2025 Deutsche Bank AG102,041$194K0.0%N/A0.074% 5/9/2025 Charles Schwab Investment Management Inc.297,880$566K0.0%+4.1%0.215% 5/1/2025 New York State Common Retirement Fund30,407$58K0.0%-20.4%0.022% 4/29/2025 Bank of New York Mellon Corp243,565$463K0.0%+2.3%0.176% 4/28/2025 Vontobel Holding Ltd.29,882$57K0.0%N/A0.022% 4/21/2025 Catalina Capital Group LLC16,938$32K0.0%-65.4%0.012% 4/17/2025 Exchange Traded Concepts LLC54,207$103K0.0%-44.6%0.039% 4/15/2025 SG Americas Securities LLC940,784$1.79M0.0%+138.2%0.680% 4/15/2025 Simplicity Wealth LLC46,543$88K0.0%N/A0.034% 4/8/2025 Rhumbline Advisers120,029$228K0.0%-7.0%0.087% 2/17/2025 Squarepoint Ops LLC24,072$35K0.0%N/A0.017% 2/17/2025 Two Sigma Advisers LP51,000$74K0.0%-41.0%0.037% 2/17/2025 Two Sigma Investments LP145,238$211K0.0%-24.8%0.106% 2/17/2025 Tang Capital Management LLC5,900,000$8.56M0.6%+225.4%4.288% 2/17/2025 ProShare Advisors LLC28,722$42K0.0%+49.0%0.021% 2/17/2025 MPM Bioimpact LLC8,567,896$12.42M1.8%+51.9%6.227% 2/17/2025 Millennium Management LLC33,857$49K0.0%-80.0%0.025% 2/17/2025 Enavate Sciences GP LLC7,788,150$11.29M8.1%N/A5.660% 2/17/2025 DAFNA Capital Management LLC158,394$230K0.1%+35.5%0.115% 2/17/2025 Cantor Fitzgerald L. P.100,000$145K0.0%-44.4%0.073% 2/17/2025 Bank of America Corp DE113,020$164K0.0%+36.6%0.082% 2/17/2025 BNP Paribas Financial Markets18,562$27K0.0%N/A0.013% 2/14/2025 Monashee Investment Management LLC448,164$650K0.1%-10.4%0.326% 2/14/2025 Northern Trust Corp801,225$1.16M0.0%-5.1%0.582% 2/14/2025 Voya Investment Management LLC32,561$47K0.0%-13.5%0.024% 2/14/2025 Blue Owl Capital Holdings LP2,954,712$4.28M1.0%+2.6%2.147% 2/14/2025 Adage Capital Partners GP L.L.C.5,994,810$8.69M0.0%-46.1%4.357% “You all just got a lot richer” (Ad)Trump Knows What He’s Doing. When the president says he’s going to let RFK “go wild” … and Big Pharma crashes. Do you think that’s an accident? When he threatens to “End the Fed” do you think he doesn’t know banking stocks will benefit? What about when he tells his followers, “Now is a good time to buy,” hours before relaxing tariffs and sending the market soaring? Is that an accident? Larry Benedict doesn’t think so. He thinks Trump knows what he’s doing… and believes he’s found the perfect tickers for everyday Americans to take advantage next time he triggers a big move. [Click here to watch a brief video with all the details.]2/14/2025 Price T Rowe Associates Inc. MD46,942$69K0.0%+31.8%0.034% 2/14/2025 Rock Springs Capital Management LP5,779,575$8.38M0.3%+2.7%4.201% 2/14/2025 Tower Research Capital LLC TRC17,251$25K0.0%+298.0%0.013% 2/14/2025 MetLife Investment Management LLC63,141$92K0.0%+200.3%0.046% 2/13/2025 XTX Topco Ltd52,754$76K0.0%+160.9%0.038% 2/13/2025 Mariner LLC20,673$30K0.0%N/A0.015% 2/13/2025 Barclays PLC192,766$279K0.0%+13.2%0.140% 2/13/2025 Renaissance Technologies LLC278,600$404K0.0%+25.2%0.202% 2/13/2025 Invesco Ltd.39,483$57K0.0%+11.3%0.029% 2/13/2025 Wells Fargo & Company MN59,860$87K0.0%+27.8%0.044% 2/12/2025 Geode Capital Management LLC2,334,171$3.39M0.0%+1.1%1.696% 2/12/2025 Alliancebernstein L.P.21,440$31K0.0%-11.3%0.016% 2/12/2025 JPMorgan Chase & Co.272,328$395K0.0%+512.5%0.198% 2/11/2025 Corebridge Financial Inc.50,704$74K0.0%-7.0%0.037% 2/11/2025 LPL Financial LLC45,000$65K0.0%-10.0%0.033% 2/11/2025 Intech Investment Management LLC51,924$75K0.0%+218.7%0.038% 2/10/2025 Connor Clark & Lunn Investment Management Ltd.156,871$227K0.0%-32.4%0.114% 2/7/2025 Sequoia Financial Advisors LLC30,876$45K0.0%N/A0.022% 2/7/2025 Independent Advisor Alliance17,948$26K0.0%N/A0.013% 2/4/2025 Bank of New York Mellon Corp237,975$345K0.0%+2.6%0.173% 1/30/2025 Rhumbline Advisers129,116$187K0.0%+3.1%0.094% 1/27/2025 Bleakley Financial Group LLC39,993$58K0.0%+250.7%0.029% 1/24/2025 Catalina Capital Group LLC48,964$71K0.0%N/A0.036% 1/17/2025 SG Americas Securities LLC395,017$573K0.0%+921.6%0.287% 11/19/2024 Barclays PLC170,245$314K0.0%+195.4%0.124% 11/16/2024 Geode Capital Management LLC2,309,778$4.25M0.0%+0.8%1.679% 11/15/2024 Barclays PLC170,245$314K0.0%+195.4%0.124% 11/15/2024 XTX Topco Ltd20,221$37K0.0%N/A0.015% 11/15/2024 Jane Street Group LLC73,487$135K0.0%-52.0%0.053% 11/15/2024 Janus Henderson Group PLC1,843,286$3.36M0.0%-64.7%1.340% 11/13/2024 FMR LLC4,136,273$7.61M0.0%+0.1%3.006% 11/13/2024 The Manufacturers Life Insurance Company42,671$79K0.0%N/A0.031% 11/9/2024 Intech Investment Management LLC16,292$30K0.0%N/A0.012% 11/1/2024 Rovin Capital UT ADV13,495$25K0.0%N/A0.010% 10/10/2024 Exchange Traded Concepts LLC97,931$180K0.0%-12.6%0.071% 10/3/2024 SG Americas Securities LLC38,665$71K0.0%+16.6%0.028% 9/16/2024 Cubist Systematic Strategies LLC40,701$41K0.0%N/A0.030% 8/14/2024 Cubist Systematic Strategies LLC40,701$41K0.0%N/A0.030% 8/9/2024 Renaissance Technologies LLC140,600$141K0.0%+99.7%0.102% 8/8/2024 Ground Swell Capital LLC124,394$124K0.1%N/A0.090% 8/1/2024 Rhumbline Advisers131,789$132K0.0%+10.3%0.096% 7/29/2024 Panagora Asset Management Inc.68,268$68K0.0%N/A0.050% 7/26/2024 Bank of New York Mellon Corp283,938$284K0.0%+12.4%0.206% 5/29/2024 Opaleye Management Inc.3,170,000$6.28M1.4%N/A2.304% 5/16/2024 Janus Henderson Group PLC6,492,900$12.82M0.0%-0.8%4.719% 5/14/2024 CM Management LLC310,000$614K0.5%+148.0%0.225% 5/10/2024 Vanguard Group Inc.4,152,197$8.22M0.0%+1.7%3.018% 5/8/2024 Bleakley Financial Group LLC40,243$80K0.0%N/A0.029% 5/7/2024 SG Americas Securities LLC28,741$57K0.0%-39.7%0.021% 4/24/2024 Simplicity Wealth LLC40,243$80K0.0%N/A0.029% “You all just got a lot richer” (Ad)Trump Knows What He’s Doing. When the president says he’s going to let RFK “go wild” … and Big Pharma crashes. Do you think that’s an accident? When he threatens to “End the Fed” do you think he doesn’t know banking stocks will benefit? What about when he tells his followers, “Now is a good time to buy,” hours before relaxing tariffs and sending the market soaring? Is that an accident? Larry Benedict doesn’t think so. He thinks Trump knows what he’s doing… and believes he’s found the perfect tickers for everyday Americans to take advantage next time he triggers a big move. [Click here to watch a brief video with all the details.]2/14/2024 Braidwell LP317,761$496K0.0%-94.7%0.249% 2/14/2024 Pennant Investors LP199,000$310K0.1%N/A0.156% 2/14/2024 Pale Fire Capital SE181,055$282K0.0%+301.0%0.142% 2/12/2024 Monashee Investment Management LLC500,000$780K0.1%-59.2%0.392% 2/9/2024 Element Capital Management LLC293,888$458K1.6%N/A0.231% 1/12/2024 SG Americas Securities LLC47,624$74K0.0%+22.7%0.037% 1/5/2024 Exchange Traded Concepts LLC65,819$103K0.0%+34.0%0.052% 12/1/2023B. Riley Wealth Advisors Inc.50,000$98K0.0%+235.2%0.039% 11/15/2023 Adage Capital Partners GP L.L.C.6,380,000$12.57M0.0%+2.1%5.004% 11/14/2023 Blackstone Inc.6,189,551$12.19M0.1%+3.1%4.855% (Data available from 1/1/2016 forward) CMPX Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of CMPX shares? During the previous two years, 81 institutional investors and hedge funds held shares of Compass Therapeutics. The most heavily invested institutionals were MPM Bioimpact LLC ($16.04M), Blackstone Inc. ($12.19M), Enavate Sciences GP LLC ($11.29M), Tang Capital Management LLC ($8.56M), Rock Springs Capital Management LP ($8.38M), Vanguard Group Inc. ($8.22M), and FMR LLC ($7.61M).Learn more on CMPX's institutional investors. What percentage of Compass Therapeutics stock is owned by institutional investors? 68.43% of Compass Therapeutics stock is owned by institutional investors. Learn more on CMPX's institutional investor holdings. Which institutional investors have been buying Compass Therapeutics stock? Of the 62 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: Enavate Sciences GP LLC ($7.79M), Tang Capital Management LLC ($4.09M), Opaleye Management Inc. ($3.17M), MPM Bioimpact LLC ($2.93M), Braidwell LP ($2.71M), SG Americas Securities LLC ($955.26K), and Prosight Management LP ($405.70K). How much institutional buying is happening at Compass Therapeutics? Institutional investors have bought a total of 26,437,149 shares in the last 24 months. This purchase volume represents approximately $46.81M in transactions. Which Compass Therapeutics major shareholders have been selling company stock? Of the 30 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: Adage Capital Partners GP L.L.C. ($7.16M), Braidwell LP ($5.64M), Janus Henderson Group PLC ($3.43M), Foresite Capital Management V LLC ($2.23M), Monashee Investment Management LLC ($1.73M), Baker BROS. Advisors LP ($1.01M), and FMR LLC ($982.41K). How much institutional selling is happening at Compass Therapeutics? Institutional investors have sold a total of 23,374,046 shares in the last 24 months. This volume of shares sold represents approximately $42.90M in transactions. Related Companies ETNB Major Shareholders AUPH Major Shareholders GYRE Major Shareholders MLYS Major Shareholders WVE Major Shareholders PAHC Major Shareholders ARDX Major Shareholders COLL Major Shareholders NTLA Major Shareholders RCUS Major Shareholders This page (NASDAQ:CMPX) was last updated on 5/28/2025 by MarketBeat.com Staff From Our PartnersJuly 2025 Rule Change to Impact Retirement InvestorsThere's a massive change from a new rule going into effect this July. 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