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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, Q2 2026

Institutional positions in Compass Therapeutics, Inc. as of Jun 30, 2026. 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
215
+17 vs. Q1 2026
Shares held
165.7M
−7.90M (−4.6%) vs. Q1 2026
Total value
$363.4M
−$557.7M (−60.5%) vs. Q1 2026
New holders
64
86 more added
Sold out
47
44 more reduced

3 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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 holdersQ2 2026: 215 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 heldQ2 2026: $363.4M
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, Q2 2026

Shares, value and share of portfolio for each institution holding Compass Therapeutics, Inc.; share changes are against Q1 2026.

Institutions holding CMPX in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Freestone Grove Partners LP1$20.00%+1New
Steward Partners Investment Advisory, LLC2$40.00%+2New
Smartleaf Asset Management LLC69$1490.00%00.0%Unchanged
JPL Wealth Management, LLC89$1950.00%+89New
Larson Financial Group LLC93$2040.00%+70+304.3%Added
SBI Securities Co., Ltd.180$3940.00%−4−2.2%Reduced
Marshall & Sterling Wealth Advisors Inc.200$4380.00%00.0%Unchanged
Zions Bancorporation, National Association288$6310.00%+288New
National Bank of Canada300$6540.00%+65+27.7%Added
GAMMA Investing LLC442$9680.00%+218+97.3%Added
Picton Mahoney Asset Management467$1.02K0.00%+467New
Optiver Holding B.V.568$1.24K0.00%−768−57.5%Reduced
Truvestments Capital LLC614$1.34K0.00%+614New
Wealth Enhancement Trust Services, Inc.740$1.62K0.00%+740New
Rothschild Investment LLC765$1.68K0.00%+486+174.2%Added
Clearstead Advisors, LLC783$1.72K0.00%+783New
SJS Investment Consulting Inc.812$1.78K0.00%+785+2,907.4%Added
EverSource Wealth Advisors, LLC1,114$2.44K0.00%−5,028−81.9%Reduced
Farther Finance Advisors, LLC1,264$2.75K0.00%+609+93.0%Added
Fortitude Family Office, LLC1,481$3.24K0.00%−434−22.7%Reduced
Essential Partners LLC1,516$3.32K0.00%+1,507+16,744.4%Added
True Wealth Design, LLC1,557$3.41K0.00%+1,557New
Sterling Capital Management LLC2,642$5.79K0.00%+198+8.1%Added
Silver Grove Financial Group, Inc.3,004$6.58K0.00%+3,004New
Pacer Advisors, Inc.3,175$7.00K0.00%+3,175New
Federation des caisses Desjardins du Quebec4,000$8.76K0.00%+3,000+300.0%Added
Royal Bank of Canada4,048$9.00K0.00%+4,042+67,366.7%Added
Rockefeller Capital Management L.P.4,814$10.5K0.00%−5,368−52.7%Reduced
Nisa Investment Advisors, LLC5,456$11.9K0.00%+208+4.0%Added
MCF Advisors LLC5,540$12.1K0.00%00.0%Unchanged
SRS Capital Advisors, Inc.5,725$12.5K0.00%+5,725New
VSM Wealth Advisory, LLC6,100$13.4K0.00%+3,100+103.3%Added
Operose Advisors LLC6,274$13.7K0.00%+6,274New
Tower Research Capital LLC (TRC)7,474$16.4K0.00%−15,778−67.9%Reduced
Federated Hermes, Inc.7,522$16.5K0.00%+7,522New
Prestige Wealth Management Group LLC7,750$17.0K0.00%+7,750New
Allworth Financial LP10,084$22.1K0.00%+9,492+1,603.4%Added
Teacher Retirement System of Texas10,167$22.3K0.00%−4,297−29.7%Reduced
Brevan Howard Capital Management LP10,202$22.3K0.00%+20.0%Added
Ameritas Investment Partners, Inc.10,621$23.3K0.00%00.0%Unchanged
The PNC Financial Services Group, Inc.10,939$24.0K0.00%−99−0.9%Reduced
Crewe Advisors LLC11,696$25.6K0.00%+11,696New
SummitTX Capital, L.P.12,000$26.3K0.00%+12,000New
Blair William & Co12,186$26.7K0.00%−18,574−60.4%Reduced
North Star Investment Management Corp.12,500$27.4K0.00%00.0%Unchanged
Xponance, Inc.12,550$27.5K0.00%+714+6.0%Added
Belpointe Asset Management LLC13,025$28.5K0.00%+13,025New
Fortis Capital Advisors, LLC13,025$28.5K0.00%+13,025New
HB Wealth Management, LLC13,058$28.6K0.00%+13,058New
State of Wyoming14,065$30.8K0.00%+14,065New
StoneX Group Inc.15,000$31.0K0.00%+15,000New
MAI Capital Management14,189$31.1K0.00%+13,575+2,210.9%Added
Stifel Financial Corp14,211$31.1K0.00%−13,286−48.3%Reduced
Pictet Asset Management Holding SA14,432$31.6K0.00%00.0%Unchanged
Centiva Capital, LP14,432$31.6K0.00%+14,432New
Sig Brokerage, LP14,496$31.7K0.01%00.0%Unchanged
Victory Capital Management Inc14,806$32.4K0.00%+1,077+7.8%Added
Chicago Partners Investment Group LLC16,257$34.5K0.00%+16,257New
Jupiter Asset Management Ltd16,270$35.6K0.00%+16,270New
Virtu Financial LLC16,394$36.0K0.00%−26,672−61.9%Reduced
McAdam, LLC16,494$36.1K0.00%+16,494New
ProShare Advisors LLC17,167$37.6K0.00%−1,536−8.2%Reduced
Ikarian Capital, LLC18,000$39.4K0.01%00.0%Unchanged
M&T Bank Corp18,198$39.9K0.00%+3,155+21.0%Added
Brighton Jones LLC18,317$40.1K0.00%+18,317New
Welch & Forbes LLC19,000$41.6K0.00%00.0%Unchanged
Caitong International Asset Management Co., Ltd19,301$42.3K0.01%+18,582+2,584.4%Added
Wealthcare Capital Partners, LLC19,654$43.0K0.02%+19,654New
Apollon Wealth Management, LLC19,687$43.1K0.00%+19,687New
Neuberger Berman Group LLC19,792$43.3K0.00%+3,439+21.0%Added
ACT Advisors, LLC.20,613$45.1K0.02%+20,613New
Arkadios Wealth Advisors21,464$47.0K0.00%+21,464New
SEI Investments Co21,552$47.2K0.00%+21,552New
Prudential Financial Inc21,720$47.6K0.00%−472,580−95.6%Reduced
Independent Financial Group, LLC22,779$49.9K0.00%00.0%Unchanged
Graham Capital Management, L.P.22,857$50.1K0.00%−694−2.9%Reduced
nVerses Capital, LLC23,330$51.1K0.08%+23,330New
Arizona State Retirement System23,604$51.7K0.00%−7,028−22.9%Reduced
Merit Financial Group, LLC23,674$51.8K0.00%+23,674New
KLP Kapitalforvaltning AS24,600$53.9K0.00%00.0%Unchanged
Winton Group Ltd24,900$54.5K0.00%+24,900New
Walleye Trading LLC25,000$54.8K0.00%00.0%Unchanged
Engineers Gate Manager LP26,335$57.7K0.00%−45,418−63.3%Reduced
E Fund Management Co., Ltd.26,808$58.7K0.00%+2,186+8.9%Added
Voya Investment Management LLC27,069$59.3K0.00%−348,251−92.8%Reduced
State of New Jersey Common Pension Fund D27,659$60.6K0.00%−10,454−27.4%Reduced
Intech Investment Management LLC27,910$61.1K0.00%−1,893−6.4%Reduced
Strategic Wealth Partners, Ltd.28,575$62.6K0.00%+11,750+69.8%Added
Florida Financial Advisors, LLC28,586$62.6K0.01%+28,586New
Two Sigma Securities, LLC29,451$64.5K0.01%+29,451New
Betterment LLC30,143$66.0K0.00%+30,143New
New York State Common Retirement Fund30,407$66.6K0.00%00.0%Unchanged
LPL Financial LLC31,470$68.9K0.00%−4,000−11.3%Reduced
Independent Advisor Alliance31,587$69.2K0.00%+13,693+76.5%Added
Virginia Retirement Systems Et Al32,300$70.7K0.00%+32,300New
Captrust Financial Advisors32,609$71.4K0.00%+10,933+50.4%Added
Vanguard Investments Australia, Ltd.33,422$73.2K0.00%00.0%Unchanged
Police & Firemen's Retirement System of New Jersey35,503$77.8K0.00%00.0%Unchanged
BNP Paribas Arbitrage, SA35,631$78.0K0.00%−137−0.4%Reduced
Simplicity Wealth,LLC36,480$79.9K0.00%+8,130+28.7%Added