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Compass Therapeutics, Inc.

CMPX
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001738021

In the last 90 days, Compass Therapeutics, Inc. insiders filed 1 open-market purchase and 0 sales; 215 institutions reported holding it in 13F filings for Q2 2026, worth $363.4M in total; no superinvestor holds it.

13F holders, Q3 2023

Institutional positions in Compass Therapeutics, Inc. as of Sep 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
76
+3 vs. Q2 2023
Shares held
89.7M
−758.3K (−0.8%) vs. Q2 2023
Total value
$176.7M
−$110.9M (−38.6%) vs. Q2 2023
New holders
8
30 more added
Sold out
5
19 more reduced

Compare with Q2 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting CMPX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2023: 76 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 37 institutionsQ1 2022: 34 institutionsQ2 2022: 34 institutionsQ3 2022: 38 institutionsQ4 2022: 55 institutionsQ1 2023: 73 institutionsQ2 2023: 73 institutionsQ3 2023: 76 institutionsQ4 2023: 77 institutionsQ1 2024: 78 institutionsQ2 2024: 82 institutionsQ3 2024: 79 institutionsQ4 2024: 92 institutionsQ1 2025: 108 institutionsQ2 2025: 103 institutionsQ3 2025: 125 institutionsQ4 2025: 173 institutionsQ1 2026: 201 institutionsQ2 2026: 215 institutions
Value heldQ3 2023: $176.7M
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $201.6MQ1 2022: $85.4MQ2 2022: $163.9MQ3 2022: $145.6MQ4 2022: $401.4MQ1 2023: $266.5MQ2 2023: $287.7MQ3 2023: $176.7MQ4 2023: $134.3MQ1 2024: $187.2MQ2 2024: $93.4MQ3 2024: $169.6MQ4 2024: $147.0MQ1 2025: $206.1MQ2 2025: $281.5MQ3 2025: $528.7MQ4 2025: $881.5MQ1 2026: $921.3MQ2 2026: $363.4M
Institutions holding CMPX and their total value by quarter
QuarterHoldersValue
Q2 2026215$363.4M
Q1 2026201$921.3M
Q4 2025173$881.5M
Q3 2025125$528.7M
Q2 2025103$281.5M
Q1 2025108$206.1M
Q4 202492$147.0M
Q3 202479$169.6M
Q2 202482$93.4M
Q1 202478$187.2M
Q4 202377$134.3M
Q3 202376$176.7M
Q2 202373$287.7M
Q1 202373$266.5M
Q4 202255$401.4M
Q3 202238$145.6M
Q2 202234$163.9M
Q1 202234$85.4M
Q4 202137$201.6M
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q3 2023

Shares, value and share of portfolio for each institution holding Compass Therapeutics, Inc.; share changes are against Q2 2023.

Institutions holding CMPX in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Citigroup Inc183$3610.00%−28,905−99.4%Reduced
Metropolitan Life Insurance Co5,176$10.2K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)6,138$12.1K0.00%−576−8.6%Reduced
Ameritas Investment Partners, Inc.7,536$14.8K0.00%00.0%Unchanged
Amalgamated Bank9,377$18.0K0.00%00.0%Unchanged
Flagship Harbor Advisors, LLC11,000$21.7K0.00%00.0%Unchanged
Dimensional Fund Advisors LP11,161$22.0K0.00%−19,289−63.3%Reduced
ProShare Advisors LLC11,856$23.4K0.00%−12−0.1%Reduced
Principal Financial Group Inc11,972$23.6K0.00%+11,972New
Alliancebernstein L.P.13,480$26.6K0.00%+2,220+19.7%Added
Stifel Financial Corp15,000$29.6K0.00%00.0%Unchanged
Verition Fund Management LLC15,515$30.6K0.00%+15,515New
STRS Ohio19,000$37.0K0.00%00.0%Unchanged
Royal Bank of Canada19,750$38.0K0.00%+7,000+54.9%Added
Price T Rowe Associates Inc20,463$41.0K0.00%+1,942+10.5%Added
Teacher Retirement System of Texas21,566$42.0K0.00%+974+4.7%Added
Arizona State Retirement System21,612$42.6K0.00%+292+1.4%Added
Wells Fargo & Company22,192$43.7K0.00%−12,928−36.8%Reduced
New Capital Management LP24,243$47.8K0.02%+24,243New
Zurcher Kantonalbank (Zurich Cantonalbank)24,314$47.9K0.00%00.0%Unchanged
State Board of Administration of Florida Retirement System26,320$50.0K0.00%+410+1.6%Added
Two Sigma Investments, LP25,700$50.6K0.00%+25,700New
Renaissance Technologies LLC26,800$53.0K0.00%+26,800New
Salem Investment Counselors Inc30,000$59.1K0.00%00.0%Unchanged
Barclays PLC30,303$59.7K0.00%−1,618−5.1%Reduced
Algert Global LLC33,963$66.9K0.00%−54,870−61.8%Reduced
Manufacturers Life Insurance Company, The37,520$73.9K0.00%00.0%Unchanged
New York State Common Retirement Fund38,361$75.6K0.00%+961+2.6%Added
SG Americas Securities, LLC38,807$76.0K0.00%+38,807New
Two Sigma Advisers, LP38,600$76.0K0.00%+38,600New
Voya Investment Management LLC39,556$77.9K0.00%+2,123+5.7%Added
Deutsche Bank AG44,614$87.9K0.00%+7,976+21.8%Added
Pale Fire Capital SE45,155$89.0K0.01%+45,155New
American International Group, Inc.45,544$89.7K0.00%+1,620+3.7%Added
Legal & General Group Plc46,872$92.3K0.00%−19,627−29.5%Reduced
Exchange Traded Concepts, LLC49,129$96.8K0.00%+5,924+13.7%Added
MetLife Investment Management49,953$98.4K0.00%00.0%Unchanged
National Asset Management, Inc.50,000$98.5K0.00%+35,082+235.2%Added
UBS Group AG59,045$116.3K0.00%−3,417−5.5%Reduced
JPMorgan Chase & Co62,739$123.6K0.00%−8,425−11.8%Reduced
Morgan Stanley63,289$124.7K0.00%−55,607−46.8%Reduced
Invesco Ltd.66,096$130.2K0.00%+27,452+71.0%Added
Credit Suisse AG73,368$144.5K0.00%−4,056−5.2%Reduced
Caxton Corp86,773$170.9K0.65%+43,307+99.6%Added
California State Teachers Retirement System87,289$172.0K0.00%−9,835−10.1%Reduced
Alps Advisors Inc94,115$185.4K0.00%+1,127+1.2%Added
Bank of America Corp114,158$224.9K0.00%+38,844+51.6%Added
DAFNA Capital Management LLC116,882$230.3K0.07%00.0%Unchanged
Rhumbline Advisers117,119$230.7K0.00%+4,791+4.3%Added
Connor, Clark & Lunn Investment Management Ltd.132,792$261.6K0.00%+17,746+15.4%Added
Swiss National Bank163,400$321.9K0.00%00.0%Unchanged
Goldman Sachs Group Inc220,182$433.8K0.00%+112,626+104.7%Added
Charles Schwab Investment Management Inc263,276$518.7K0.00%+11,880+4.7%Added
Bank of New York Mellon Corp272,452$536.7K0.00%+1,156+0.4%Added
Millennium Management LLC306,623$604.0K0.00%+143,157+87.6%Added
Nuveen Asset Management, LLC397,534$783.1K0.00%+5,663+1.4%Added
Northern Trust Corp825,114$1.63M0.00%+55,249+7.2%Added
Ally Bridge Group (NY) LLC914,630$1.80M2.11%00.0%Unchanged
Prosight Management, LP935,157$1.84M0.58%−148,840−13.7%Reduced
Monashee Investment Management LLC1,226,142$2.42M1.01%−743,154−37.7%Reduced
Foresite Capital Management V, LLC1,246,977$2.46M3.92%−77,094−5.8%Reduced
Baker Bros. Advisors LP1,557,630$3.07M0.02%00.0%Unchanged
Avidity Partners Management LP1,599,600$3.15M0.13%−20,600−1.3%Reduced
State Street Corp1,756,113$3.46M0.00%+9,599+0.5%Added
Geode Capital Management, LLC1,892,321$3.73M0.00%+84,114+4.7%Added
CHI Advisors LLC2,829,712$5.57M2.21%00.0%Unchanged
Vivo Capital, LLC3,556,023$7.01M0.87%00.0%Unchanged
Vanguard Group Inc4,107,519$8.09M0.00%+9,637+0.2%Added
FMR LLC4,553,093$8.97M0.00%−982,413−17.7%Reduced
Rock Springs Capital Management LP5,513,788$10.9M0.29%00.0%Unchanged
Braidwell LP5,954,273$11.7M0.37%00.0%Unchanged
BlackRock Inc.5,973,735$11.8M0.00%−58,557−1.0%Reduced
Blackstone Group Inc.6,189,551$12.2M0.05%+188,811+3.1%Added
Adage Capital Partners GP, L.L.C.6,380,000$12.6M0.03%+130,000+2.1%Added
Janus Henderson Group PLC6,660,638$13.1M0.01%+441,897+7.1%Added
OrbiMed Advisors LLC22,362,850$44.1M1.02%00.0%Unchanged
LMR Partners LLP0$00.00%−80,692−100.0%Sold out
Susquehanna International Group, LLP0$00.00%−25,507−100.0%Sold out
XTX Topco Ltd0$00.00%−10,992−100.0%Sold out
State of Wisconsin Investment Board0$00.00%−11,601−100.0%Sold out
Aquatic Capital Management LLC0$00.00%−100−100.0%Sold out