Compass Therapeutics, Inc. (CMPX) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

23,055,785Shares held by institutions

$117,353,946Value of institutional holdings

78.60%Institutional ownership %

1.67%Shares Changed QoQ

102No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Compass Therapeutics, Inc. (NASDAQ:CMPX) has 167 institutional investors with active 13F positions as of December 2025.

These investors collectively held 99.8% of Compass Therapeutics's outstanding shares in December 2025, up from 90.8% in September 2025.
Their total shares held in CMPX increased 14.85% quarter over quarter, and separately, investors owning Compass Therapeutics increased 81.52% from a year ago.
During the quarter, 115 of these 167 funds increased positions in CMPX, 35 reduced exposure, and 17 held steady.
The aggregate institutional position in Compass Therapeutics amounted to 168.44Mn shares as of December 2025, up by 21.78Mn shares quarter on quarter, and up 66.43Mn shares year over year.
TANG CAPITAL MANAGEMENT LLC is the top holder of Compass Therapeutics as of December 31, 2025, with 16.79Mn shares representing 9.95% of outstanding stock.
The most significant purchases of CMPX for the quarter ending December 2025 came from Blue Owl Capital Holdings LP (4.34Mn), DEERFIELD MANAGEMENT COMPANY, L.P. (3.61Mn), BVF INC/IL (3.01Mn), BRAIDWELL LP (2.79Mn), Palo Alto Investors LP (2.53Mn).
The largest sellers of Compass Therapeutics for the quarter ending December 2025 were Blackstone Inc. (3.71Mn), Jpmorgan Chase & Co (3.13Mn), SILVERARC CAPITAL MANAGEMENT, LLC (1.78Mn), Royal Bank Of Canada (1.7Mn), FMR LLC (1.56Mn).
Per Business Quant, the top 10 investors in CMPX for the quarter ending December 2025 include TANG CAPITAL MANAGEMENT LLC (16.79Mn), ORBIMED ADVISORS LLC (15.22Mn), SUVRETTA CAPITAL MANAGEMENT, LLC (14.18Mn), Vivo Capital, LLC (9.55Mn), BlackRock, Inc. (9.39Mn), VANGUARD GROUP INC (8.05Mn), Enavate Sciences GP, LLC (7.79Mn), BVF INC/IL (7.76Mn), Blue Owl Capital Holdings LP (6.93Mn), Blackstone Inc. (6.13Mn).

167 Institutional Holders

23,055,785 Total Shares Held

Rows:

Download Data

Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	2,017,877	27.38%	$0.00
TANG CAPITAL MANAGEMENT LLC	31 Dec, 2025	-21,154	-0.13%	$0.00
Vivo Capital, LLC	31 Dec, 2025	0	0.00%	$0.00
Barclays Plc	31 Dec, 2025	202,113	51.47%	$0.00
ORBIMED ADVISORS LLC	31 Dec, 2025	0	0.00%	$0.00
Enavate Sciences GP, LLC	31 Dec, 2025	0	0.00%	$0.00
Rockefeller Capital Management L.P.	31 Dec, 2025	4,084	0.00%	$0.00
SUVRETTA CAPITAL MANAGEMENT, LLC	31 Dec, 2025	81,220	0.58%	$0.00
Blue Owl Capital Holdings LP	31 Dec, 2025	4,341,525	167.53%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	985,575	13.95%	$0.00
Sofinnova Investments, Inc.	31 Dec, 2025	1,336,560	65.88%	$0.00
BVF INC/IL	31 Dec, 2025	3,014,842	63.47%	$0.00
BRAIDWELL LP	31 Dec, 2025	2,786,778	0.00%	$0.00
Blackstone Inc.	31 Dec, 2025	-3,713,926	-37.74%	$0.00
Birchview Capital, LP	31 Dec, 2025	720,000	82.48%	$0.00
State Street Corp	31 Dec, 2025	1,784,012	57.43%	$0.00
Trails Edge Capital Partners, LP	31 Dec, 2025	1,415,273	0.00%	$0.00
ADAGE CAPITAL PARTNERS GP, L.L.C.	31 Dec, 2025	-750,000	-14.46%	$0.00
Logos Global Management LP	31 Dec, 2025	-900,000	-43.90%	$0.00
Rock Springs Capital Management LP	31 Dec, 2025	-547,500	-12.24%	$0.00

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