Compass Therapeutics, Inc. - Common Stock, par value $0.0001 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, par value $0.0001 per share used to aggregate holder disclosures.

Q: How many institutions held CMPX - Compass Therapeutics, Inc. - Common Stock, par value $0.0001 per share in Q3 2023?

76 institutional investors reported CMPX - Compass Therapeutics, Inc. - Common Stock, par value $0.0001 per share for Q3 2023. Use the holders table for investor-level position and value details.

CUSIP: 20454B104

Q3 2023 13F Holders as of 30 Sep 2023

Security type / class: Equity / Common Stock, par value $0.0001 per share
Total 13F shares: 89,720,729
Total 13F value: $176,712,745
Share change: -782,486
SEC-reported price per share: $1.97
Number of holders: 76
Value change: -$1,697,948
Number of buys: 37
Number of sells: 23
Shares outstanding: 180,189,325

Security key

20454B104

Report period

Q3 2023

Institutions

Top holders

CMPX full security history Ownership snapshot Full 13F holder table Newer quarter: Q3 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: Q3 2026

Recent filing periods:

Q3 2026

Ownership snapshot

Top reported holders of CMPX - Compass Therapeutics, Inc. - Common Stock, par value $0.0001 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

ORBIMED ADVISORS LLC

Disclosed value leader

ORBIMED ADVISORS LLC

Comparable rows

0/15

Latest evidence

30 Jun 2023

13F Highest disclosed value: $71,113,863 15 rows are not safely comparable across share classes. Showing 1-6 of 15 holder rows.

Quick read

ORBIMED ADVISORS LLC has the largest disclosed position value at $71.11M.

0 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 ORBIMED ADVISORS LLC's linked filing trail.

Disclosed position value Top 5

ORBIMED ADVISORS LLC $71.11M

ADAGE CAPITAL PARTNERS GP, L.L.C. $19.88M

Janus Henderson Group Ltd. $19.71M

BlackRock Finance, Inc. $19.18M

Blackstone Inc. $19.08M

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

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

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
ORBIMED ADVISORS LLC	13F Company 13F	— denominator unverified	$71,113,863 22,362,850 shares	—	30 Jun 2023
ADAGE CAPITAL PARTNERS GP, L.L.C.	13F Company 13F	— denominator unverified	$19,875,000 6,250,000 shares	—	30 Jun 2023
Janus Henderson Group Ltd.	13F Company 13F	— denominator unverified	$19,713,413 6,218,741 shares	—	30 Jun 2023
BlackRock Finance, Inc.	13F Company 13F	— denominator unverified	$19,182,688 6,032,292 shares	—	30 Jun 2023
Blackstone Inc.	13F Company 13F	— denominator unverified	$19,082,353 6,000,740 shares	—	30 Jun 2023
BRAIDWELL LP	13F Company 13F	— denominator unverified	$18,934,588 5,954,273 shares	—	30 Jun 2023

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 Q3 2023

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

Institutions

89,720,729

Rows available

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 Q3 2023 vs Q2 2023 Across Filers

Q2 2023 holders

Q3 2023 holders

Holder diff

Investor	Q2 2023 Shares	Q3 2023 Shares	Share Diff	Share Chg %	Q2 2023 value	Q3 2023 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend