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Gossamer Bio
GOSS

Overview Fund Activity

119 hedge funds and large institutions have $187M invested in Gossamer Bio in 2025 Q1 according to their latest regulatory filings, with 24 funds opening new positions, 35 increasing their positions, 30 reducing their positions, and 9 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
119
Holders Change
+14
Holders Change %
+13.33%
% of All Funds
1.62%
Holding in Top 10
3
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+200%
% of All Funds
0.04%
New
24
Increased
35
Reduced
30
Closed
9
Calls
$2.93M
Puts
$117K
Net Calls
+$2.82M
Net Calls Change
+$2.31M

Top Buyers

1
Susquehanna International Group
1
Susquehanna International Group
Pennsylvania
$3.21M
2
Acadian Asset Management
2
Acadian Asset Management
Massachusetts
$6.99M
3
Goldman Sachs
3
Goldman Sachs
New York
$1.03M
4
Arrowstreet Capital
4
Arrowstreet Capital
Massachusetts
$884K
5
AI
5
Atom Investors
Texas
$772K

Top Sellers

1
Alyeska Investment Group
1
Alyeska Investment Group
Illinois
$4.58M
2
PIM
2
Platinum Investment Management
Australia
$1.9M
3
Jacobs Levy Equity Management
3
Jacobs Levy Equity Management
New Jersey
$310K
4
EP
4
Eversept Partners
New York
$4.29M
5
Millennium Management
5
Millennium Management
New York
$2.95M
Name Holding Trade Value Shares
Change 		Shares
Change %
FAIM
76
Financial Advocates Investment Management
Washington
$86.5K – – –
VCIM
77
Velan Capital Investment Management
Georgia
$82.5K – – –
T. Rowe Price Associates
78
T. Rowe Price Associates
Maryland
$72K – – –
PAP
79
Persistent Asset Partners
Hong Kong
$68.2K -$4.3K -3,910 -6%
CFM
80
Catalyst Funds Management
Australia
$57.2K +$57.2K +52,039 New
CL
81
Choreo LLC
Illinois
$52.9K – – –
Prudential Financial
82
Prudential Financial
New Jersey
$51.8K – – –
HWM
83
HB Wealth Management
Georgia
$51.4K +$9.9K +9,000 +24%
Tudor Investment Corp
84
Tudor Investment Corp
Connecticut
$51.1K – – –
Invesco
85
Invesco
Georgia
$48.1K +$48.1K +43,697 New
Lazard Asset Management
86
Lazard Asset Management
New York
$48K -$69.9K -63,709 -59%
Commonwealth Equity Services
87
Commonwealth Equity Services
Massachusetts
$46K +$8.35K +7,645 +22%
Hudson Bay Capital Management
88
Hudson Bay Capital Management
Connecticut
$40.6K +$40.6K +36,900 New
VF
89
Virtu Financial
New York
$38K +$38K +34,971 New
US Bancorp
90
US Bancorp
Minnesota
$36.8K -$6.79K -6,168 -16%
SCP
91
Sivia Capital Partners
California
$33K +$2.2K +2,000 +7%
GCM
92
Graham Capital Management
Connecticut
$31.9K -$6.57K -5,970 -17%
Osaic Holdings
93
Osaic Holdings
Arizona
$30.2K +$56 +51 +0.2%
SAM
94
Silvercrest Asset Management
New York
$28.8K – – –
BHCM
95
Brevan Howard Capital Management
Jersey
$26K +$26K +23,672 New
TCM
96
Traynor Capital Management
Pennsylvania
$25.6K +$10.2K +9,272 +66%
CA
97
Clearstead Advisors
Ohio
$24.2K – – –
Bank of New York Mellon
98
Bank of New York Mellon
New York
$22.2K -$1 -1 -0%
Cambridge Investment Research Advisors
99
Cambridge Investment Research Advisors
Iowa
$21K +$3.59K +3,300 +21%
VPIM
100
Vanguard Personalized Indexing Management
California
$18.7K +$2.7K +2,455 +17%
2 3
4
5 6