Compass Therapeutics, Inc. - Common Stock, $0.0001 par value per share (CMPX)

Q: What does CUSIP 20454B104 represent in this 13F holders report?

CUSIP 20454B104 is the security identifier for CMPX - Compass Therapeutics, Inc. - Common Stock, $0.0001 par value per share used to aggregate holder disclosures.

Q: How many institutions held CMPX - Compass Therapeutics, Inc. - Common Stock, $0.0001 par value per share in Q2 2025?

103 institutional investors reported CMPX - Compass Therapeutics, Inc. - Common Stock, $0.0001 par value per share for Q2 2025. Use the holders table for investor-level position and value details.

CUSIP: 20454B104

Q2 2025 13F Holders as of 30 Jun 2025

Security type / class: Equity / Common Stock, $0.0001 par value per share
Total 13F shares: 108,253,035
Total 13F value: $281,458,749
Share change: -213,332
Put/Call ratio: 13769%
SEC-reported price per share: $2.60
Number of holders: 103
Value change: +$738,261
Number of buys: 43
Number of sells: 64
Shares outstanding: 180,577,721

Security key

20454B104

Report period

Q2 2025

Institutions

103

Top holders

CMPX full security history Ownership snapshot Full 13F holder table Newer quarter: Q2 2026 Compass Therapeutics, Inc. SEC filings Compass Therapeutics, Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 20454B104

Newer quarter: Q2 2026

Recent filing periods:

Q2 2026

Ownership snapshot

Top reported holders of CMPX - Compass Therapeutics, Inc. - Common Stock, $0.0001 par value per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

ADAGE CAPITAL PARTNERS GP...

Disclosed value leader

ORBIMED ADVISORS LLC

Comparable rows

15/15

Latest evidence

31 Mar 2025

13D/G 13F Lead comparable stake: 4.4% 13D/G row: ADAGE CAPITAL PARTNERS GP, L.L.C. Showing 1-6 of 15 holder rows.

Quick read

ADAGE CAPITAL PARTNERS GP, L.L.C. leads the comparable SEC ownership view at 4.4%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens ADAGE CAPITAL PARTNERS GP, L.L.C.'s linked filing trail.

Comparable ownership Top 5

ADAGE CAPITAL PARTNERS GP, L.L.C. 4.4%

MPM BioImpact LLC 4.1%

ORBIMED ADVISORS LLC 12%

TANG CAPITAL MANAGEMENT LLC 6.1%

Blackstone Inc. 5.6%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
ADAGE CAPITAL PARTNERS GP, L.L.C.	13D/G 13F Adage Capital Management, L.P. · Company 13D/G 13F	4.4%	$11,629,931 5,994,810 shares	$0	31 Dec 2024
MPM BioImpact LLC	13F 13D/G Company 13F 13D/G	4.1% from 13D/G	$16,041,288 8,442,783 shares	—	31 Mar 2025
ORBIMED ADVISORS LLC	13F Company 13F	12%	$42,489,415 22,362,850 shares	—	31 Mar 2025
TANG CAPITAL MANAGEMENT LLC	13F Company 13F	6.1%	$21,000,001 11,052,632 shares	—	31 Mar 2025
Blackstone Inc.	13F Company 13F	5.6%	$19,047,787 10,025,151 shares	—	31 Mar 2025
Enavate Sciences GP, LLC	13F Company 13F	4.3%	$14,797,485 7,788,150 shares	—	31 Mar 2025

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q2 2025

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

103

108,253,035

Rows available

103

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q2 2025 vs Q1 2025 Across Filers

Q1 2025 holders

107

Q2 2025 holders

103

Holder diff

-4

Investor	Q1 2025 Shares	Q2 2025 Shares	Share Diff	Share Chg %	Q1 2025 value	Q2 2025 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend