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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, Q4 2022

Institutional positions in Compass Therapeutics, Inc. as of Dec 31, 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
55
+18 vs. Q3 2022
Shares held
79.8M
+17.5M (+28.1%) vs. Q3 2022
Total value
$401.4M
+$259.3M (+182.5%) vs. Q3 2022
New holders
19
23 more added
Sold out
1
4 more reduced

1 institution that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2022: 55 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 heldQ4 2022: $401.4M
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, Q4 2022

Shares, value and share of portfolio for each institution holding Compass Therapeutics, Inc.; share changes are against Q3 2022.

Institutions holding CMPX in Q4 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Bank of America Corp82$4120.00%+82New
Advisor Group Holdings, Inc.100$1.00K0.00%00.0%Unchanged
Wells Fargo & Company636$3.20K0.00%+179+39.2%Added
Tower Research Capital LLC (TRC)1,160$6.00K0.00%+1,160New
Cubist Systematic Strategies, LLC10,300$51.8K0.00%+10,300New
Flagship Harbor Advisors, LLC11,500$57.8K0.01%−2,500−17.9%Reduced
UBS Group AG11,819$59.5K0.00%+4,591+63.5%Added
Lighthouse Investment Partners, LLC14,662$73.8K0.01%+14,662New
National Asset Management, Inc.14,918$75.0K0.00%+14,918New
Boothbay Fund Management, LLC17,130$86.2K0.00%+17,130New
Barclays PLC18,225$91.7K0.00%+17,851+4,773.0%Added
New Capital Management LP24,243$121.9K0.05%00.0%Unchanged
Man Group plc25,305$127.3K0.00%+25,305New
Marshall Wace, LLP28,296$142.3K0.00%−23,520−45.4%Reduced
Balyasny Asset Management LLC28,793$144.8K0.00%+28,793New
Jump Financial, LLC29,200$146.9K0.01%+29,200New
Salem Investment Counselors Inc30,000$150.9K0.01%00.0%Unchanged
Mirabella Financial Services LLP30,444$153.1K0.01%+30,444New
683 Capital Management, LLC38,039$191.3K0.02%+38,039New
Bank of New York Mellon Corp39,306$197.7K0.00%+15,055+62.1%Added
Charles Schwab Investment Management Inc42,767$215.1K0.00%+11,031+34.8%Added
Renaissance Technologies LLC51,900$261.0K0.00%−12,315−19.2%Reduced
Citadel Advisors LLC62,276$313.2K0.00%+62,276New
Jane Street Group, LLC62,829$316.0K0.00%+48,564+340.4%Added
Qube Research & Technologies Ltd62,995$316.9K0.00%+62,995New
Morgan Stanley64,498$324.4K0.00%+55,626+627.0%Added
Millennium Management LLC81,947$412.0K0.00%+18,760+29.7%Added
LMR Partners LLP124,939$628.4K0.01%+24,939+24.9%Added
Citigroup Inc126,315$635.4K0.00%+121,782+2,686.6%Added
Northern Trust Corp157,083$790.1K0.00%+69,716+79.8%Added
Caxton Corp211,159$1.06M2.71%+211,159New
Silverarc Capital Management, LLC268,307$1.35M0.46%+6,217+2.4%Added
State Street Corp270,113$1.36M0.00%+270,113New
Hudson Bay Capital Management LP311,500$1.49M0.02%+311,500New
Susquehanna International Group, LLP455,681$2.29M0.00%+435,943+2,208.6%Added
Alyeska Investment Group, L.P.545,170$2.73M0.03%+545,170New
DAFNA Capital Management LLC602,051$3.03M0.85%+413,957+220.1%Added
Fred Alger Management, LLC608,536$3.06M0.02%00.0%Unchanged
Geode Capital Management, LLC790,248$3.97M0.00%+188,924+31.4%Added
Eventide Asset Management, LLC935,091$4.70M0.09%−165,308−15.0%Reduced
BlackRock Inc.1,237,781$6.23M0.00%+365,284+41.9%Added
Baker Bros. Advisors LP1,557,630$7.83M0.05%+1,557,630New
Braidwell LP1,814,266$9.13M0.31%+1,814,266New
Avidity Partners Management LP2,000,000$10.1M0.24%00.0%Unchanged
Monashee Investment Management LLC2,230,441$11.2M4.83%+1,000,000+81.3%Added
CHI Advisors LLC2,829,712$14.2M3.79%00.0%Unchanged
Vivo Capital, LLC3,557,630$17.9M2.17%+1,557,630+77.9%Added
Vanguard Group Inc3,610,404$18.2M0.00%+1,229,781+51.7%Added
Foresite Capital Management V, LLC4,400,000$22.1M17.19%00.0%Unchanged
Blackstone Group Inc.4,620,998$23.2M0.09%+3,115,260+206.9%Added
Rock Springs Capital Management LP5,333,188$26.8M0.65%00.0%Unchanged
Adage Capital Partners GP, L.L.C.5,774,800$29.0M0.07%+1,168,200+25.4%Added
Janus Henderson Group PLC5,939,290$29.8M0.02%+2,416,310+68.6%Added
FMR LLC6,354,814$32.0M0.00%00.0%Unchanged
OrbiMed Advisors LLC22,362,850$112.5M2.15%+402,000+1.8%Added
Royal Bank of Canada0$00.00%−675−100.0%Sold out
Foresite Capital Opportunity Management V, LLC––––Not filed