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Gossamer Bio
GOSS

Overview Fund Activity

95 hedge funds and large institutions have $171M invested in Gossamer Bio in 2023 Q3 according to their latest regulatory filings, with 31 funds opening new positions, 31 increasing their positions, 19 reducing their positions, and 34 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
95
Holders Change
-4
Holders Change %
-4.04%
% of All Funds
1.51%
Holding in Top 10
1
Holding in Top 10 Change
+1
Holding in Top 10 Change %
%
% of All Funds
0.02%
New
31
Increased
31
Reduced
19
Closed
34
Calls
$2.67M
Puts
$538K
Net Calls
+$2.14M
Net Calls Change
+$1.52M

Top Buyers

1
NMC
1
NEA Management Company
Maryland
$13.1M
2
EC
2
EcoR1 Capital
California
$7.66M
3
AVM
3
Arch Venture Management
Illinois
$6.71M
4
Vanguard Group
4
Vanguard Group
Pennsylvania
$9.38M
5
Alyeska Investment Group
5
Alyeska Investment Group
Illinois
$5.67M

Top Sellers

1
T. Rowe Price Associates
1
T. Rowe Price Associates
Maryland
$0
2
Ensign Peak Advisors
2
Ensign Peak Advisors
Utah
$0
3
Acadian Asset Management
3
Acadian Asset Management
Massachusetts
$1.28M
4
Two Sigma Investments
4
Two Sigma Investments
New York
$446K
5
GCP
5
GSA Capital Partners
United Kingdom
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
NMC
1
NEA Management Company
Maryland
$13.1M +$10.2M +12,260,536 +354%
Vanguard Group
2
Vanguard Group
Pennsylvania
$9.38M +$6.4M +7,686,213 +215%
EC
3
EcoR1 Capital
California
$7.66M +$7.66M +9,195,404 New
OCA
4
Octagon Capital Advisors
New York
$6.82M +$3.52M +4,229,814 +107%
AVM
5
Arch Venture Management
Illinois
$6.71M +$6.71M +8,055,916 New
Millennium Management
6
Millennium Management
New York
$5.87M +$2.37M +2,844,283 +68%
Alyeska Investment Group
7
Alyeska Investment Group
Illinois
$5.67M +$5.67M +6,803,500 New
PAI
8
Palo Alto Investors
California
$5.44M +$2.55M +3,065,136 +88%
BC
9
Boxer Capital
California
$5.41M +$2.63M +3,160,772 +95%
AG
10
Artal Group
Luxembourg
$5.33M +$2.81M +3,371,648 +111%
GPP
11
Great Point Partners
Connecticut
$5.19M +$5.19M +6,230,272 New
Citadel Advisors
12
Citadel Advisors
Florida
$5.14M +$3.95M +4,741,674 +332%
FCM
13
Farallon Capital Management
California
$5.11M +$5.11M +6,130,272 New
SB
14
Samsara BioCapital
California
$5.11M +$5.11M +6,130,268 New
MAP
15
Madison Avenue Partners
New York
$5.11M +$5.11M +6,130,268 New
SCM
16
Silverarc Capital Management
Massachusetts
$5.11M +$5.11M +6,130,268 New
NCM
17
Nantahala Capital Management
Connecticut
$5.07M +$5.07M +6,089,471 New
PIM
18
Platinum Investment Management
Australia
$4.46M +$2.49M +2,994,608 +127%
MIM
19
Monashee Investment Management
Massachusetts
$4.42M +$4.42M +5,304,212 New
HA
20
HHLR Advisors
Cayman Islands
$4.14M – – –
AC
21
Armistice Capital
New York
$4.13M +$4.13M +4,956,000 New
OM
22
Opaleye Management
Massachusetts
$3.96M +$1.15M +1,384,200 +41%
BlackRock
23
BlackRock
New York
$3.72M +$2.13M +2,554,648 +134%
EP
24
Eversept Partners
New York
$3.69M +$3.06M +3,678,160 +491%
Federated Hermes
25
Federated Hermes
Pennsylvania
$3.33M +$2.55M +3,057,419 +326%
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