GOSS icon

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 %
Renaissance Technologies
26
Renaissance Technologies
New York
$1.73M -$158K -143,348 -8%
LCM
27
Laurion Capital Management
New York
$1.71M +$69.8K +63,446 +4%
Two Sigma Advisers
28
Two Sigma Advisers
New York
$1.42M +$143K +129,700 +11%
Two Sigma Investments
29
Two Sigma Investments
New York
$1.4M +$423K +384,133 +43%
Charles Schwab
30
Charles Schwab
California
$1.25M -$113K -103,032 -8%
EAM
31
Exome Asset Management
New York
$1.21M – – –
Goldman Sachs
32
Goldman Sachs
New York
$1.03M +$908K +825,047 +720%
DCM
33
DAFNA Capital Management
California
$999K -$552K -501,408 -36%
Qube Research & Technologies (QRT)
34
Qube Research & Technologies (QRT)
United Kingdom
$985K +$220K +199,609 +29%
State Street
35
State Street
Massachusetts
$971K +$126K +114,200 +15%
Arrowstreet Capital
36
Arrowstreet Capital
Massachusetts
$884K +$884K +803,815 New
WP
37
Woodline Partners
California
$801K – – –
AI
38
Atom Investors
Texas
$772K +$772K +701,975 New
Focus Partners Wealth
39
Focus Partners Wealth
Massachusetts
$770K +$770K +700,000 New
GCP
40
GSA Capital Partners
United Kingdom
$765K -$184K -166,860 -19%
Jane Street
41
Jane Street
New York
$752K +$738K +670,649 +5,250%
AI
42
Allostery Investments
Connecticut
$674K – – –
BCM
43
Bridgeway Capital Management
Texas
$617K +$21.9K +19,900 +4%
HCM
44
Highbridge Capital Management
New York
$547K -$110K -100,000 -17%
Morgan Stanley
45
Morgan Stanley
New York
$505K +$342K +310,978 +209%
OCM
46
Opti Capital Management
New York
$456K +$255K +231,833 +127%
Northern Trust
47
Northern Trust
Illinois
$451K -$1.33K -1,210 -0.3%
HF
48
HRT Financial
New York
$428K +$428K +389,452 New
PCM
49
Prelude Capital Management
New York
$414K -$41.8K -38,045 -9%
Mackenzie Financial
50
Mackenzie Financial
Ontario, Canada
$388K +$57.9K +52,658 +18%
1
2
3 4 5