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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, Q1 2025

Institutional positions in Compass Therapeutics, Inc. as of Mar 31, 2025. 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
108
+17 vs. Q4 2024
Shares held
108.5M
+7.41M (+7.3%) vs. Q4 2024
Total value
$206.1M
+$59.6M (+40.6%) vs. Q4 2024
New holders
27
30 more added
Sold out
10
29 more reduced

1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2024: 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 holdersQ1 2025: 108 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 heldQ1 2025: $206.1M
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $201.6MQ1 2022: $85.4MQ2 2022: $163.9MQ3 2022: $153.7MQ4 2022: $401.4MQ1 2023: $285.1MQ2 2023: $287.7MQ3 2023: $176.7MQ4 2023: $134.8MQ1 2024: $187.9MQ2 2024: $93.5MQ3 2024: $169.7MQ4 2024: $147.0MQ1 2025: $206.1MQ2 2025: $281.9MQ3 2025: $535.7MQ4 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$535.7M
Q2 2025103$281.9M
Q1 2025108$206.1M
Q4 202492$147.0M
Q3 202479$169.7M
Q2 202482$93.5M
Q1 202478$187.9M
Q4 202377$134.8M
Q3 202376$176.7M
Q2 202373$287.7M
Q1 202373$285.1M
Q4 202255$401.4M
Q3 202238$153.7M
Q2 202234$163.9M
Q1 202234$85.4M
Q4 202137$201.6M
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q1 2025

Shares, value and share of portfolio for each institution holding Compass Therapeutics, Inc.; share changes are against Q4 2024.

Institutions holding CMPX in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
OrbiMed Advisors LLC22,362,850$42.5M1.02%00.0%Unchanged
Tang Capital Management LLC11,052,632$21.0M1.16%+5,152,632+87.3%Added
Blackstone Group Inc.10,025,151$19.0M0.08%00.0%Unchanged
MPM Oncology Impact Management LP8,442,783$16.0M2.76%−125,113−1.5%Reduced
Enavate Sciences GP, LLC7,788,150$14.8M11.15%00.0%Unchanged
BlackRock, Inc.7,109,090$13.5M0.00%+221,475+3.2%Added
Rock Springs Capital Management LP4,962,955$9.43M0.54%−816,620−14.1%Reduced
Vanguard Group Inc4,838,006$9.19M0.00%+119,812+2.5%Added
FMR LLC4,134,287$7.86M0.00%−2,116−0.1%Reduced
Adage Capital Partners GP, L.L.C.3,975,000$7.55M0.01%−2,019,810−33.7%Reduced
Vivo Capital, LLC3,556,023$6.76M0.89%00.0%Unchanged
Blue Owl Capital Holdings LP2,954,712$5.61M1.81%00.0%Unchanged
Geode Capital Management, LLC2,364,896$4.49M0.00%+30,725+1.3%Added
JPMorgan Chase & Co2,185,480$4.15M0.00%+1,913,152+702.5%Added
State Street Corp1,949,677$3.70M0.00%+46,669+2.5%Added
SG Americas Securities, LLC940,784$1.79M0.01%+545,767+138.2%Added
Silverarc Capital Management, LLC874,869$1.66M0.35%+874,869New
Morgan Stanley839,176$1.59M0.00%+460,624+121.7%Added
Northern Trust Corp803,138$1.53M0.00%+1,913+0.2%Added
Baker Bros. Advisors LP547,498$1.04M0.01%−1,010,132−64.9%Reduced
Millennium Management LLC545,088$1.04M0.00%+511,231+1,510.0%Added
Monashee Investment Management LLC448,164$851.5K0.10%00.0%Unchanged
Bank of America Corp383,503$728.7K0.00%+270,483+239.3%Added
Macquarie Group Ltd340,772$647.5K0.00%+340,772New
Renaissance Technologies LLC321,500$610.9K0.00%+42,900+15.4%Added
Nuveen, LLC304,504$578.6K0.00%+304,504New
Charles Schwab Investment Management Inc297,880$566.0K0.00%+11,689+4.1%Added
Bank of New York Mellon Corp243,565$462.8K0.00%+5,590+2.3%Added
Goldman Sachs Group Inc233,522$443.7K0.00%−156,917−40.2%Reduced
Propel Bio Management, LLC228,317$433.8K0.50%+228,317New
Wellington Management Group LLP222,505$422.8K0.00%+222,505New
Jane Street Group, LLC178,002$338.2K0.00%+165,231+1,293.8%Added
Panagora Asset Management Inc170,607$324.2K0.00%−859−0.5%Reduced
UBS Group AG152,851$290.4K0.00%−10,805−6.6%Reduced
Cantor Fitzgerald, L. P.150,000$285.0K0.01%+50,000+50.0%Added
Dimensional Fund Advisors LP138,802$264.0K0.00%+127,685+1,148.6%Added
Susquehanna International Group, LLP131,497$249.8K0.00%+76,882+140.8%Added
Citigroup Inc131,237$249.3K0.00%+52,634+67.0%Added
Affinity Asset Advisors, LLC130,807$248.5K0.04%+130,807New
Rhumbline Advisers120,029$228.0K0.00%−9,087−7.0%Reduced
Simplify Asset Management Inc.120,000$228.0K0.01%+120,000New
Barclays PLC118,731$225.6K0.00%−74,035−38.4%Reduced
Deutsche Bank AG102,041$193.9K0.00%+102,041New
Intech Investment Management LLC78,294$148.8K0.00%+26,370+50.8%Added
American Century Companies Inc73,682$140.0K0.00%+73,682New
Franklin Resources Inc62,844$119.4K0.00%+62,844New
Wells Fargo & Company61,213$116.3K0.00%+1,353+2.3%Added
Mirae Asset Global ETFs Holdings Ltd.61,040$116.0K0.00%+2,574+4.4%Added
Voya Investment Management LLC58,976$112.1K0.00%+26,415+81.1%Added
Nomura Holdings Inc58,700$111.5K0.00%+58,700New
Exchange Traded Concepts, LLC54,207$103.0K0.00%−43,724−44.6%Reduced
Walleye Capital LLC52,478$99.7K0.00%+52,478New
Two Sigma Investments, LP51,239$97.4K0.00%−93,999−64.7%Reduced
Corebridge Financial, Inc.49,963$94.9K0.00%−741−1.5%Reduced
State of Wisconsin Investment Board47,700$90.6K0.00%+47,700New
Price T Rowe Associates Inc46,942$90.0K0.00%00.0%Unchanged
Simplicity Wealth,LLC46,543$88.4K0.01%+46,543New
Caxton Corp43,465$82.6K1.63%00.0%Unchanged
LPL Financial LLC42,100$80.0K0.00%−2,900−6.4%Reduced
Manufacturers Life Insurance Company, The39,501$75.1K0.00%−2,479−5.9%Reduced
MetLife Investment Management37,167$70.6K0.00%−25,974−41.1%Reduced
Invesco Ltd.37,157$70.6K0.00%−2,326−5.9%Reduced
Verition Fund Management LLC32,245$61.3K0.00%+32,245New
New York State Common Retirement Fund30,407$57.8K0.00%−7,800−20.4%Reduced
Vontobel Holding Ltd.29,882$56.8K0.00%+29,882New
Sequoia Financial Advisors, LLC27,934$53.1K0.00%−2,942−9.5%Reduced
Walleye Trading LLC25,000$47.5K0.00%+25,000New
Birchview Capital, LP24,000$45.6K0.04%+24,000New
Marex Group plc23,600$44.8K0.00%+23,600New
Police & Firemen's Retirement System of New Jersey22,933$43.6K0.00%00.0%Unchanged
CIBC World Markets Corp22,630$43.0K0.00%+22,630New
Tower Research Capital LLC (TRC)22,522$42.8K0.00%+5,271+30.6%Added
ProShare Advisors LLC22,079$42.0K0.00%−6,643−23.1%Reduced
Alliancebernstein L.P.21,440$40.7K0.00%00.0%Unchanged
Captrust Financial Advisors19,993$38.0K0.00%+19,993New
Independent Advisor Alliance18,450$35.1K0.00%+502+2.8%Added
STRS Ohio17,900$34.0K0.00%00.0%Unchanged
State Board of Administration of Florida Retirement System17,730$33.7K0.00%+17,730New
Catalina Capital Group, LLC16,938$32.2K0.02%−32,026−65.4%Reduced
Dakota Wealth Management14,000$26.6K0.00%00.0%Unchanged
Financial Advisory Corp13,495$26.0K0.01%00.0%Unchanged
Colony Group, LLC13,601$25.8K0.00%−13,581−50.0%Reduced
North Star Investment Management Corp.12,500$23.8K0.00%00.0%Unchanged
Stonebrook Private Inc.12,294$23.4K0.01%+1,006+8.9%Added
HSBC Holdings PLC11,923$23.3K0.00%−9,606−44.6%Reduced
Gsa Capital Partners LLP12,187$23.0K0.00%+12,187New
Mariner, LLC11,381$21.6K0.00%−9,292−44.9%Reduced
BNP Paribas Arbitrage, SA11,132$21.2K0.00%−7,430−40.0%Reduced
ACT Advisors, LLC.10,761$20.4K0.01%+233+2.2%Added
Royal Bank of Canada9,559$18.0K0.00%−5,784−37.7%Reduced
Legal & General Group Plc8,648$16.5K0.00%−1,523−15.0%Reduced
Ameritas Investment Partners, Inc.7,536$14.3K0.00%00.0%Unchanged
California State Teachers Retirement System7,390$14.0K0.00%00.0%Unchanged
Fortitude Family Office, LLC5,145$9.78K0.00%00.0%Unchanged
The PNC Financial Services Group, Inc.5,000$9.50K0.00%+4,995+99,900.0%Added
Amalgamated Bank3,077$6.00K0.00%00.0%Unchanged
CoreCap Advisors, LLC2,664$5.06K0.00%+364+15.8%Added
Sterling Capital Management LLC1,760$3.34K0.00%−1,704−49.2%Reduced
CWM, LLC878$2.00K0.00%+319+57.1%Added
Coldstream Capital Management Inc879$1.67K0.00%+879New