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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 2022

Institutional positions in Compass Therapeutics, Inc. as of Sep 30, 2022. 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
38
+5 vs. Q2 2022
Shares held
67.4M
+5.50M (+8.9%) vs. Q2 2022
Total value
$153.7M
−$10.2M (−6.2%) vs. Q2 2022
New holders
9
11 more added
Sold out
4
3 more reduced

1 institution that held it in Q2 2022 haven't filed for Q3 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2022: 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 2022: 38 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 2022: $153.7M
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, Q3 2022

Shares, value and share of portfolio for each institution holding Compass Therapeutics, Inc.; share changes are against Q2 2022.

Institutions holding CMPX in Q3 2022
InstitutionSharesValue% of portfolioChange in sharesAction
OrbiMed Advisors LLC21,960,850$50.1M0.93%00.0%Unchanged
Janus Henderson Group PLC7,045,960$16.1M0.01%+3,698,789+110.5%Added
FMR LLC6,354,814$14.5M0.00%−517,600−7.5%Reduced
Rock Springs Capital Management LP5,333,188$12.2M0.31%+5,100+0.1%Added
Adage Capital Partners GP, L.L.C.4,606,600$10.5M0.03%+200,000+4.5%Added
Foresite Capital Management V, LLC4,400,000$10.0M7.71%00.0%Unchanged
CHI Advisors LLC2,829,712$6.45M1.73%00.0%Unchanged
Vanguard Group Inc2,380,623$5.43M0.00%+878,650+58.5%Added
Vivo Capital, LLC2,000,000$4.56M0.50%00.0%Unchanged
Avidity Partners Management LP2,000,000$4.56M0.10%00.0%Unchanged
Foresite Capital Opportunity Management V, LLC1,554,250$3.54M10.64%00.0%Unchanged
Blackstone Group Inc.1,505,738$3.43M0.01%00.0%Unchanged
Monashee Investment Management LLC1,230,441$2.81M1.04%00.0%Unchanged
Eventide Asset Management, LLC1,100,399$2.51M0.05%+1,100,399New
BlackRock Inc.872,497$1.99M0.00%+709,071+433.9%Added
Fred Alger Management, LLC608,536$1.39M0.01%00.0%Unchanged
Geode Capital Management, LLC601,324$1.37M0.00%+576,467+2,319.1%Added
Silverarc Capital Management, LLC262,090$598.0K0.25%+262,090New
DAFNA Capital Management LLC188,094$429.0K0.12%−10,000−5.0%Reduced
LMR Partners LLP100,000$228.0K0.00%00.0%Unchanged
Northern Trust Corp87,367$199.0K0.00%+87,367New
Renaissance Technologies LLC64,215$146.0K0.00%−1,950−2.9%Reduced
Millennium Management LLC63,187$144.0K0.00%+35,326+126.8%Added
Marshall Wace, LLP51,816$117.0K0.00%+28,089+118.4%Added
Charles Schwab Investment Management Inc31,736$73.0K0.00%+31,736New
Salem Investment Counselors Inc30,000$68.0K0.00%00.0%Unchanged
New Capital Management LP24,243$55.0K0.03%00.0%Unchanged
Bank of New York Mellon Corp24,251$55.0K0.00%+24,251New
Susquehanna International Group, LLP19,738$45.0K0.00%+19,738New
Jane Street Group, LLC14,265$33.0K0.00%+14,265New
Flagship Harbor Advisors, LLC14,000$32.0K0.00%00.0%Unchanged
Morgan Stanley8,872$20.0K0.00%+8,259+1,347.3%Added
UBS Group AG7,228$16.0K0.00%00.0%Unchanged
Citigroup Inc4,533$10.0K0.00%+3,163+230.9%Added
Royal Bank of Canada675$2.00K0.00%+447+196.1%Added
Wells Fargo & Company457$1.00K0.00%+457New
Barclays PLC374$1.00K0.00%+374New
Advisor Group Holdings, Inc.100$00.00%00.0%Unchanged
Consonance Capital Management LP0$00.00%−1,603,789−100.0%Sold out
CM Management, LLC0$00.00%−30,000−100.0%Sold out
Mascoma Wealth Management LLC0$00.00%−15,682−100.0%Sold out
Charter Oak Capital Management, LLC0$00.00%−1,483−100.0%Sold out
B. Riley Wealth Management, Inc.––––Not filed