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

Historical Holders from Q4 2021 to Q3 2025

Symbol
CMPX on Nasdaq
Type / Class
Equity / Common Stock, par value $0.0001 per share
Shares outstanding
176,391,745
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares, excl. options
151,051,532
Holdings value
$528,689,677
% of all portfolios
0.003%
Number of holders
123
Number of buys
72
Number of sells
-41
Average buys %
+0%
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% $60,117,785 +$12,881,057 17,176,510 +27.3% TANG CAPITAL MANAGEMENT, LLC 30 Sep 2025
ORBIMED ADVISORS LLC 8.9% -19.1% $41,093,984 15,219,994 0% ORBIMED ADVISORS LLC 13 Aug 2025
SUVRETTA CAPITAL MANAGEMENT, LLC 8.2% +60% $44,559,662 +$21,967,265 14,101,159 +97.2% Suvretta Capital Management, LLC 13 Aug 2025
Vivo Opportunity Fund Holdings, L.P. 5.1% $31,485,926 8,995,979 Vivo Opportunity Fund Holdings, L.P. 30 Sep 2025
BIOTECHNOLOGY VALUE FUND L P 5.1% $30,625,000 8,750,000 BVF PARTNERS L P/IL 22 Oct 2025
Commander Aggregator, LP 4.5% $24,610,554 7,788,150 Commander Aggregator, LP 14 Aug 2025
BlackRock, Inc. 4.6% -8% $16,637,369 -$1,270,430 6,398,988 -7.1% BlackRock, Inc. 30 Jun 2025
ADAGE CAPITAL PARTNERS GP, L.L.C. 4.36% $11,629,931 5,994,810 Adage Capital Management, L.P. 31 Dec 2024
MPM BioImpact LLC 4.1% -35% $15,180,764 -$7,952,556 5,622,505 -34.4% MPM BioImpact LLC 30 Jun 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 151,051,532 $528,689,677 +$149,915,944 $3.5 123
2025 Q2 108,253,035 $281,458,749 +$738,261 $2.6 103
2025 Q1 108,444,414 $206,047,938 +$13,824,994 $1.9 107
2024 Q4 101,374,021 $146,996,022 +$1,180,763 $1.45 92
2024 Q3 92,186,861 $169,597,729 +$881,089 $1.84 79
2024 Q2 92,861,661 $93,412,908 -$5,271,746 $1 81
2024 Q1 94,552,324 $187,180,490 +$18,089,983 $1.98 77
2023 Q4 86,111,898 $134,344,397 -$2,317,455 $1.56 76
2023 Q3 89,720,729 $176,712,745 -$1,697,948 $1.97 76
2023 Q2 90,478,972 $287,651,504 +$28,216,829 $3.18 72
2023 Q1 81,516,748 $266,518,963 +$1,871,389 $3.27 72
2022 Q4 79,833,267 $401,391,571 +$78,919,542 $5.03 54
2022 Q3 63,858,418 $145,631,000 +$3,917,942 $2.28 36
2022 Q2 61,892,616 $163,922,000 +$665,806 $2.65 31
2022 Q1 62,376,106 $85,353,000 -$4,074,753 $1.37 33
2021 Q4 63,567,962 $201,611,000 +$198,091,000 $3.17 37