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Compass Therapeutics Ownership | Who Owns Compass Therapeutics?

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Compass Therapeutics Ownership Summary

Compass Therapeutics is owned by 88.91% institutional investors, 12.46% insiders. Tang capital management is the largest institutional shareholder, holding 10.65% of CMPX shares. State Street® SPDR® S&P® Biotech ETF is the top mutual fund, with 2.69% of its assets in Compass Therapeutics shares.

CMPX Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockCompass Therapeutics88.91%12.46%-1.37%
SectorHealthcare Stocks 245.07%12.10%-157.17%
IndustryBiotech Stocks 380.48%11.73%-292.21%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Tang capital management16.79M10.65%$88.82M
Orbimed advisors15.22M9.65%$80.51M
Suvretta capital management14.31M9.07%$75.69M
Vivo capital9.55M6.05%$50.50M
Blackrock funding, inc. /de9.51M6.03%$50.29M
Vanguard group8.05M5.82%$43.22M
Adage capital partners gp8.49M5.38%$44.89M
Enavate sciences gp7.79M4.94%$41.20M
Blackrock6.61M4.84%$6.61M
State street6.69M4.25%$35.42M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Enavate sciences gp7.79M11.72%$41.20M
Tang capital management16.79M4.51%$88.82M
Birchview capital, lp1.47M4.41%$7.75M
Vivo capital9.55M4.21%$50.50M
Blue owl capital lp2.94M4.18%$15.56M
Acuta capital partners849.08K3.17%$4.49M
Bioimpact capital5.08M2.91%$17.77M
Suvretta capital management14.31M1.93%$75.69M
Orbimed advisors15.22M1.60%$80.51M
Palo alto investors lp1.51M1.23%$8.01M

Top Buyers

HolderShares% AssetsChange
Adage capital partners gp8.49M0.07%4.05M
Ubs group2.39M0.00%2.22M
Qube research2.55M0.01%2.11M
State street6.69M0.00%1.80M
Fisher asset management1.35M0.00%1.35M

Top Sellers

HolderShares% AssetsChange
Bvf inc/il---7.76M
Blackstone1.86M0.04%-4.27M
Rtw investments, lp---4.19M
Deerfield management company, l.p. (series c)---3.61M
Opaleye management---3.17M

New Positions

HolderShares% AssetsChangeValue
Fisher asset management1.35M0.00%1.35M$7.13M
Vanguard fiduciary trust998.14K0.00%998.14K$5.28M
Arrowmark colorado514.79K0.07%514.79K$2.72M
Swiss national bank220.70K0.00%220.70K$1.17M
Ubs asset management americas139.64K0.00%139.64K$738.71K

Sold Out

HolderChange
Hughes financial services-3.00
Clearstead advisors-4.00
Ifp advisors-6.00
Stone house investment management-15.00
Nelson, van denburg & campbell wealth management group-16.00

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Jun 30, 20262226.22%166,090,002-4.13%881.03%15220.63%44-10.20%
Mar 31, 202666-60.95%16,644,827-89.86%100.07%37-68.38%17-48.48%
Dec 31, 2025107-15.75%57,926,851-61.65%410.35%772.67%16-48.39%
Sep 30, 202512215.09%151,030,99039.52%1091.78%7062.79%31-27.91%
Jun 30, 2025105-18.60%108,229,435-0.20%781.26%42-37.31%4348.28%

Top Mutual Funds Shareholders

HolderShares% HoldingChange
State Street® SPDR® S&P® Biotech ETF4.84M2.69%-92.50K
Biotech Growth Ord3.57M2.58%-
Vanguard MStar Total Stk Mkt Idx Invest4.19M2.33%-
Vanguard Morn Total Stk Mkt Idx Investor4.19M2.33%-100.00
Vanguard Total Stock Mkt Idx Inv4.19M2.33%-100.00
iShares Russell 2000 ETF3.48M1.93%-40.06K
Vanguard US Total Market Shares ETF2.19M1.58%-
Vanguard Institutional Extnd Mkt Idx Tr1.80M1.00%4.43K
Fidelity Enhanced Small Cap Core ETF1.61M0.90%3.38K
Fidelity Small Cap Index1.43M0.79%-1.76K

Recent Insider Transactions

DateNameRoleActivityValue
Oct 01, 2026Lerner Neil Chief Accounting OfficerBuy$18.40K
Sep 24, 2026Lerner Neil Chief Accounting OfficerBuy$2.85K
Apr 29, 2026Lerner Neil Chief Accounting OfficerBuy$28.35K
Apr 29, 2026Anderman Jonathan General CounselBuy$47.25K
May 27, 2025Schuetz Thomas J. CHIEF EXECUTIVE OFFICERBuy$21.10K

Insider Transactions Trends

DateBuySell
2026 Q41-
2026 Q31-
2026 Q22-
2026 Q1--
2025 Q4--

CMPX Ownership FAQ

Who Owns Compass Therapeutics?

Compass Therapeutics shareholders are primarily institutional investors at 88.91%, followed by 12.46% insiders and -1.37% retail investors. The average institutional ownership in Compass Therapeutics's industry, Biotech Stocks , is 380.48%, which Compass Therapeutics falls below.

Who owns the most shares of Compass Therapeutics?

Compass Therapeutics’s largest shareholders are Tang capital management (16.79M shares, 10.65%), Orbimed advisors (15.22M shares, 9.65%), and Suvretta capital management (14.31M shares, 9.07%). Together, they hold 29.37% of Compass Therapeutics’s total shares outstanding.

Does Blackrock own Compass Therapeutics?

Yes, BlackRock owns 4.84% of Compass Therapeutics, totaling 6.61M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 6.61M$. In the last quarter, BlackRock increased its holdings by 581.17K shares, a 9.63% change.

Who is Compass Therapeutics’s biggest shareholder by percentage of total assets invested?

Enavate sciences gp is Compass Therapeutics’s biggest shareholder by percentage of total assets invested, with 11.72% of its assets in 7.79M Compass Therapeutics shares, valued at 41.2M$.

Who is the top mutual fund holder of Compass Therapeutics shares?

State Street® SPDR® S&P® Biotech ETF is the top mutual fund holder of Compass Therapeutics shares, with 2.69% of its total shares outstanding invested in 4.84M Compass Therapeutics shares.

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