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

Historical Holders from Q4 2021 to Q3 2025

Symbol
CMPX on Nasdaq
CUSIP
20454B104
Type / Class
Equity / Common Stock, par value $0.0001 per share
Shares outstanding
176M
All holders as of September 30, 2025
Q3 2025
Total 13F shares, excl. options
151M
Holdings value
$529M
% of all portfolios
0.003%
Grand Portfolio weight change
+0%
Number of holders
121
Number of buys
70
Number of sells
-40
Average Value change %
+0%
Average buys %
+0.002%
Average sells %
0%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

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

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
TANG CAPITAL MANAGEMENT LLC 9.99% +1.9% $60.1M $12.9M 17.2M +27.3% TANG CAPITAL MANAGEMENT, LLC Sep 30, 2025
ORBIMED ADVISORS LLC 8.9% -19.1% $49.9M 15.2M 0% ORBIMED ADVISORS LLC Aug 13, 2025
SUVRETTA CAPITAL MANAGEMENT, LLC 8.2% +60% $46.3M $22.8M 14.1M +97.2% Suvretta Capital Management, LLC Aug 13, 2025
Vivo Opportunity Fund Holdings, L.P. 5.1% $31.5M 9M Vivo Opportunity Fund Holdings, L.P. Sep 30, 2025
BIOTECHNOLOGY VALUE FUND L P 5.1% $30.6M 8.75M BVF PARTNERS L P/IL Oct 22, 2025
Commander Aggregator, LP 4.5% $25.5M 7.79M Commander Aggregator, LP Aug 14, 2025
BlackRock, Inc. 4.6% -8% $12.8M -$977K 6.4M -7.09% BlackRock, Inc. Jun 30, 2025
ADAGE CAPITAL PARTNERS GP, L.L.C. 4.36% $10.2M 5.99M Adage Capital Management, L.P. Dec 31, 2024
MPM BioImpact LLC 4.1% -35% $14.6M -$7.66M 5.62M -34.4% MPM BioImpact LLC Jun 30, 2025

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

Period Reported Shares, Excl. Options Value, Excl. Options Change Price Investors
2025 Q3 151M $529M +$150M $3.50 121
2025 Q2 108M $281M +$738K $2.60 103
2025 Q1 108M $206M +$13.8M $1.90 107
2024 Q4 101M $147M +$1.18M $1.45 92
2024 Q3 92.2M $170M +$881K $1.84 79
2024 Q2 92.9M $93.4M -$5.27M $1.00 81
2024 Q1 94.6M $187M +$18.2M $1.98 77
2023 Q4 39.6K $61.7K $1.56 1
2023 Q3 89.7M $177M -$1.7M $1.97 76
2023 Q2 90.5M $288M +$28.7M $3.18 72
2023 Q1 81.5M $267M +$1.8M $3.27 72
2022 Q4 79.8M $401M +$78.8M $5.03 54
2022 Q3 63.9M $146M +$8.15M $2.28 36
2022 Q2 61.9M $164M +$666K $2.65 31
2022 Q1 62.4M $85.4M -$4.07M $1.37 33
2021 Q4 63.6M $202M +$198M $3.17 37