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CMPX Insider Trading

Insider Ownership Percentage: 18.70%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $0.00

Compass Therapeutics Insider Trading History Chart

This chart shows the insider buying and selling history at Compass Therapeutics by year and by quarter.

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Compass Therapeutics Share Price & Price History

Current Price: $2.40
Price Change: ▲ Price Increase of +0.002 (0.08%)
As of 08/24/2026 11:13 AM ET

This chart shows the closing price history over time for CMPX up to the past year.

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Days: 30 | 90 | 365

Compass Therapeutics Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
5/27/2025Thomas J. SchuetzCEOBuy10,000$2.11$21,100.006,480,825View SEC Filing Icon  
4/9/2025Carl L GordonDirectorSell3,571,428$1.59$5,678,570.52View SEC Filing Icon  
4/7/2025Jonathan AndermanInsiderBuy20,000$1.54$30,800.0021,000View SEC Filing Icon  
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SEC Filings (Institutional Ownership Changes) for Compass Therapeutics (NASDAQ:CMPX)

68.43% of Compass Therapeutics stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at CMPX by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Compass Therapeutics Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/24/2026California State Teachers Retirement System148,291$0.33M0.0%+32.0%0.082%Search for SEC Filing on Google Icon
8/23/2026HB Wealth Management LLC13,058$29K0.0%N/A0.007%Search for SEC Filing on Google Icon
8/22/2026Seven Fleet Capital Management LP233,066$0.51M0.1%-75.2%0.129%Search for SEC Filing on Google Icon
8/21/2026AXQ Capital LP42,118$92K0.0%+68.1%0.023%Search for SEC Filing on Google Icon
8/20/2026Montanova Capital LLC14,101,159$30.88M0.5%-1.4%7.830%Search for SEC Filing on Google Icon
8/20/2026Two Sigma Securities LLC29,451$64K0.0%N/A0.016%Search for SEC Filing on Google Icon
8/19/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC177,814$0.39M0.0%+27.3%0.099%Search for SEC Filing on Google Icon
8/19/2026Wellington Management Group LLP378,687$0.83M0.0%+5.2%0.210%Search for SEC Filing on Google Icon
8/18/2026Palo Alto Investors LP5,831,813$12.77B1.8%N/A3.238%Search for SEC Filing on Google Icon
8/17/2026Seven Fleet Capital Management LP233,066$510.42M0.1%N/A0.129%Search for SEC Filing on Google Icon
8/17/2026Artia Global Partners LP383,200$0.84M0.2%N/A0.213%Search for SEC Filing on Google Icon
8/17/2026Bank of America Corp DE566,919$1.24M0.0%N/A0.315%Search for SEC Filing on Google Icon
8/15/2026Jupiter Topco LLC55,600$0.12M0.0%N/A0.031%Search for SEC Filing on Google Icon
8/14/2026ADAR1 Capital Management LLC122,132$0.27M0.0%N/A0.068%Search for SEC Filing on Google Icon
8/14/2026Canada Pension Plan Investment Board160,900$0.35M0.0%N/A0.089%Search for SEC Filing on Google Icon
8/14/2026Legal & General Group Plc75,103$0.16M0.0%N/A0.042%Search for SEC Filing on Google Icon
8/14/2026The Manufacturers Life Insurance Company 68,217$0.15M0.0%N/A0.038%Search for SEC Filing on Google Icon
8/14/2026Algert Global LLC308,110$0.68M0.0%+737.7%0.171%Search for SEC Filing on Google Icon
8/13/2026Connor Clark & Lunn Investment Management Ltd.523,777$1.15M0.0%N/A0.291%Search for SEC Filing on Google Icon
8/12/2026Quantbot Technologies LP60,826$0.13M0.0%N/A0.034%Search for SEC Filing on Google Icon
8/12/2026Ieq Capital LLC122,948$0.27M0.0%N/A0.068%Search for SEC Filing on Google Icon
8/11/2026E Fund Management Co. Ltd.26,808$59K0.0%N/A0.015%Search for SEC Filing on Google Icon
8/7/2026BlackRock Inc.11,281,781$24.71M0.0%N/A6.265%Search for SEC Filing on Google Icon
8/7/2026Deutsche Bank AG134,350$0.29M0.0%N/A0.075%Search for SEC Filing on Google Icon
8/7/2026Simplicity Wealth LLC36,480$80K0.0%N/A0.020%Search for SEC Filing on Google Icon
8/6/2026Bank of New York Mellon Corp351,032$0.77M0.0%N/A0.195%Search for SEC Filing on Google Icon
8/6/2026State of Wyoming14,065$31K0.0%N/A0.008%Search for SEC Filing on Google Icon
8/6/2026GSA Capital Partners LLP70,179$0.15M0.0%N/A0.039%Search for SEC Filing on Google Icon
8/3/2026Walleye Trading LLC25,000$55K0.0%N/A0.014%Search for SEC Filing on Google Icon
7/10/2026Wealthcare Advisory Partners LLC60,962$0.13M0.0%N/A0.034%Search for SEC Filing on Google Icon
7/9/2026Wealthcare Capital Partners LLC19,654$43K0.0%N/A0.011%Search for SEC Filing on Google Icon
6/4/2026Seven Fleet Capital Management LP940,538$4.98M1.6%+65.4%0.522%Search for SEC Filing on Google Icon
6/3/2026DV Trading LLC423,566$2.24M0.1%+1,649.8%0.235%Search for SEC Filing on Google Icon
6/3/2026Parallel Advisors LLC5,250$28K0.0%N/A0.003%Search for SEC Filing on Google Icon
5/19/2026Bank of America Corp DE865,613$4.58M0.0%+224.9%0.481%Search for SEC Filing on Google Icon
5/19/2026Janus Henderson Group PLC55,600$0.29M0.0%N/A0.031%Search for SEC Filing on Google Icon
5/18/2026California State Teachers Retirement System112,316$0.59M0.0%+1,294.2%0.062%Search for SEC Filing on Google Icon
5/18/2026Rock Springs Capital Management LP3,305,308$17.49M1.0%-15.8%1.835%Search for SEC Filing on Google Icon
5/16/2026The Manufacturers Life Insurance Company67,466$0.36M0.0%+67.3%0.037%Search for SEC Filing on Google Icon
5/14/2026Monashee Investment Management LLC258,865$1.37M0.7%-74.1%0.144%Search for SEC Filing on Google Icon
5/8/2026PNC Financial Services Group Inc.11,038$58K0.0%+2,572.6%0.006%Search for SEC Filing on Google Icon
5/7/2026Dimensional Fund Advisors LP439,784$2.32M0.0%+28.7%0.244%Search for SEC Filing on Google Icon
5/7/2026Swiss National Bank220,700$1.17M0.0%N/A0.123%Search for SEC Filing on Google Icon
5/6/2026Independent Financial Group LLC22,779$0.12M0.0%N/A0.013%Search for SEC Filing on Google Icon
5/5/2026Bank of New York Mellon Corp297,301$1.57M0.0%-4.9%0.165%Search for SEC Filing on Google Icon
5/1/2026Simplicity Wealth LLC28,350$0.15M0.0%-16.3%0.016%Search for SEC Filing on Google Icon
4/28/2026Abel Hall LLC10,524$56K0.0%-54.0%0.006%Search for SEC Filing on Google Icon
4/27/2026Y Intercept Hong Kong Ltd828,879$4.39M0.1%+79.3%0.460%Search for SEC Filing on Google Icon
4/22/2026Pictet Asset Management Holding SA14,432$76K0.0%N/A0.008%Search for SEC Filing on Google Icon
4/16/2026SG Americas Securities LLC47,670$0.25M0.0%-55.3%0.026%Search for SEC Filing on Google Icon
3/3/2026Caitong International Asset Management Co. Ltd24,579$0.13M0.0%N/A0.014%Search for SEC Filing on Google Icon
2/26/2026Seven Fleet Capital Management LP568,747$3.05M2.3%N/A0.320%Search for SEC Filing on Google Icon
2/19/2026Invesco Ltd.63,901$0.34M0.0%+5.3%0.036%Search for SEC Filing on Google Icon
2/18/2026XTX Topco Ltd115,634$0.62M0.0%+582.2%0.065%Search for SEC Filing on Google Icon
2/18/2026Ikarian Capital LLC800,000$4.30M0.3%N/A0.450%Search for SEC Filing on Google Icon
2/18/2026Virtus Investment Advisers LLC51,556$0.28M0.1%N/A0.029%Search for SEC Filing on Google Icon
2/18/2026SummitTX Capital L.P.81,449$0.44M0.0%N/A0.046%Search for SEC Filing on Google Icon
2/18/2026Tang Capital Management LLC16,790,809$90.17M4.5%-0.1%9.440%Search for SEC Filing on Google Icon
2/18/2026Suvretta Capital Management LLC14,182,379$76.16M1.6%+0.6%7.974%Search for SEC Filing on Google Icon
2/18/2026Quadrature Capital Ltd12,293$66K0.0%-74.1%0.007%Search for SEC Filing on Google Icon
2/18/2026Millennium Management LLC3,109,286$16.70M0.0%-4.0%1.748%Search for SEC Filing on Google Icon
2/18/2026Balyasny Asset Management L.P.1,593,275$8.56M0.0%-43.6%0.896%Search for SEC Filing on Google Icon
2/18/2026Boothbay Fund Management LLC205,024$1.10M0.0%N/A0.115%Search for SEC Filing on Google Icon
2/18/2026BVF Inc. IL7,764,842$41.70M1.4%+63.5%4.366%Search for SEC Filing on Google Icon
2/17/2026Logos Global Management LP1,150,000$6.18M0.4%-43.9%0.647%Search for SEC Filing on Google Icon
2/17/2026ADAR1 Capital Management LLC139,000$0.75M0.1%+178.0%0.078%Search for SEC Filing on Google Icon
2/17/2026Schonfeld Strategic Advisors LLC452,442$2.43M0.0%-5.0%0.254%Search for SEC Filing on Google Icon
2/17/2026AQR Capital Management LLC155,218$0.83M0.0%+162.4%0.087%Search for SEC Filing on Google Icon
2/17/2026Braidwell LP2,786,778$14.97M0.5%N/A1.567%Search for SEC Filing on Google Icon
2/17/2026Abel Hall LLC22,882$0.12M0.0%N/A0.013%Search for SEC Filing on Google Icon
2/17/2026Price T Rowe Associates Inc. MD70,488$0.38M0.0%+24.6%0.040%Search for SEC Filing on Google Icon
2/17/2026Rock Springs Capital Management LP3,927,202$21.09M1.1%-12.2%2.208%Search for SEC Filing on Google Icon
2/17/2026Adage Capital Partners GP L.L.C.4,436,500$23.82M0.0%-14.5%2.494%Search for SEC Filing on Google Icon
2/17/2026Russell Investments Group Ltd.11,558$62K0.0%+48.5%0.006%Search for SEC Filing on Google Icon
2/17/2026Atom Investors LP77,281$0.42M0.0%-27.6%0.043%Search for SEC Filing on Google Icon
2/17/2026State of Wisconsin Investment Board185,423$1M0.0%+347.9%0.104%Search for SEC Filing on Google Icon
2/17/2026Graham Capital Management L.P.53,427$0.29M0.0%N/A0.030%Search for SEC Filing on Google Icon
2/17/2026Persistent Asset Partners Ltd57,253$0.31M0.1%N/A0.032%Search for SEC Filing on Google Icon
2/16/2026Squarepoint Ops LLC126,192$0.68M0.0%+43.6%0.071%Search for SEC Filing on Google Icon
2/16/2026Sofinnova Investments Inc.3,365,446$18.07M0.7%+65.9%1.892%Search for SEC Filing on Google Icon
2/16/2026NEXTBio Capital Management LP1,114,005$5.98M3.5%N/A0.626%Search for SEC Filing on Google Icon
2/16/2026Barclays PLC594,776$3.19M0.0%+167.4%0.334%Search for SEC Filing on Google Icon
2/13/2026Marshall Wace LLP1,263,647$6.79M0.0%N/A0.710%Search for SEC Filing on Google Icon
2/13/2026The Manufacturers Life Insurance Company 40,325$0.22M0.0%+21.6%0.023%Search for SEC Filing on Google Icon
2/13/2026Stifel Financial Corp23,973$0.13M0.0%N/A0.013%Search for SEC Filing on Google Icon
2/13/2026Rafferty Asset Management LLC151,743$0.82M0.0%+113.8%0.085%Search for SEC Filing on Google Icon
2/13/2026Birchview Capital LP1,592,938$8.55M5.0%+82.5%0.896%Search for SEC Filing on Google Icon
2/13/2026Charles Schwab Investment Management Inc.410,157$2.20M0.0%+22.3%0.231%Search for SEC Filing on Google Icon
2/13/2026Police & Firemen s Retirement System of New Jersey35,503$0.19M0.0%+25.3%0.020%Search for SEC Filing on Google Icon
2/13/2026State Street Corp4,890,525$26.26M0.0%+57.4%2.750%Search for SEC Filing on Google Icon
2/13/2026Caitong International Asset Management Co. Ltd17,879$96K0.3%N/A0.010%Search for SEC Filing on Google Icon
2/13/2026Wells Fargo & Company MN144,798$0.78M0.0%+112.4%0.081%Search for SEC Filing on Google Icon
2/12/2026Jane Street Group LLC70,063$0.38M0.0%+57.5%0.039%Search for SEC Filing on Google Icon
2/12/2026MetLife Investment Management LLC73,985$0.40M0.0%+26.8%0.042%Search for SEC Filing on Google Icon
2/12/2026Dimensional Fund Advisors LP341,596$1.84M0.0%+94.6%0.192%Search for SEC Filing on Google Icon
2/12/2026EntryPoint Capital LLC13,163$71K0.0%N/A0.007%Search for SEC Filing on Google Icon
2/12/2026Alps Advisors Inc.146,040$0.78M0.0%+75.9%0.082%Search for SEC Filing on Google Icon
2/12/2026Monashee Investment Management LLC1,000,000$5.37M3.0%-20.0%0.562%Search for SEC Filing on Google Icon
2/12/2026Nuveen LLC288,924$1.55M0.0%+11.5%0.162%Search for SEC Filing on Google Icon
2/12/2026Xponance LLC10,201$55K0.0%N/A0.006%Search for SEC Filing on Google Icon
Data available starting January 2016

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Compass Therapeutics logo
Compass Therapeutics, Inc., a clinical-stage oncology-focused biopharmaceutical company, engages in developing antibody-based therapeutics to treat various human diseases in the United States. The company's lead product candidates include CTX-009, a bispecific antibody that blocks Delta-like ligand 4 a ligand of Notch-1, and vascular endothelial growth factor A signaling pathways, which are critical to angiogenesis and tumor vascularization; and CTX-471, an IgG4 monoclonal antibody that is an agonist of CD137, a key co-stimulatory receptor on immune cells. It also develops CTX-8371, a bispecific inhibitor that targets PD-1 and PD-L1 checkpoint inhibitor antibodies. The company was founded in 2014 and is headquartered in Boston, Massachusetts.
Read More on Compass Therapeutics

Today's Range

Now: $2.40
Low: $2.32
High: $2.42

50 Day Range

MA: $2.14
Low: $1.89
High: $2.48

52 Week Range

Now: $2.40
Low: $1.61
High: $6.88

Volume

289,011 shs

Average Volume

4,617,728 shs

Market Capitalization

$432.58 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

0.92

Who are the company insiders with the largest holdings of Compass Therapeutics?

Compass Therapeutics' top insider investors include:
  1. Orbimed Advisors Llc (Director)
  2. Carl L Gordon (Director)
  3. Thomas J Schuetz (CEO)
  4. Vered Bisker-Leib (COO)
  5. Jonathan Anderman (Insider)
Learn More about top insider investors at Compass Therapeutics.

Who are the major institutional investors of Compass Therapeutics?

Compass Therapeutics' top institutional shareholders include:
  1. Montanova Capital LLC — 7.83%
  2. BlackRock Inc. — 6.26%
  3. Palo Alto Investors LP — 3.24%
  4. Bank of America Corp DE — 0.31%
  5. Connor Clark & Lunn Investment Management Ltd. — 0.29%
  6. Artia Global Partners LP — 0.21%
Learn More about top institutional investors of Compass Therapeutics stock.

Which major investors are selling Compass Therapeutics stock?

In the last quarter, CMPX stock was sold by these institutional investors:
  1. Seven Fleet Capital Management LP
  2. Montanova Capital LLC

Which major investors are buying Compass Therapeutics stock?

In the last quarter, CMPX stock was bought by institutional investors including:
  1. BlackRock Inc.
  2. Palo Alto Investors LP
  3. Bank of America Corp DE
  4. Connor Clark & Lunn Investment Management Ltd.
  5. Artia Global Partners LP
  6. Bank of New York Mellon Corp
  7. Algert Global LLC
  8. Seven Fleet Capital Management LP
In the previous year, these company insiders have bought Compass Therapeutics stock:
  1. Thomas J Schuetz (CEO)
  2. Jonathan Anderman (Insider)
Learn More investors buying Compass Therapeutics stock.

Compass Therapeutics Active Insiders

Thomas J Schuetz
Thomas J Schuetz
CEO
Carl L Gordon
Carl L Gordon
Director
Jonathan Anderman
Jonathan Anderman
Insider