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Gossamer Bio
GOSS

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

397% more call options, than puts

Call options by funds: $2.67M | Put options by funds: $538K

130% more capital invested

Capital invested by funds: $74.4M → $171M (+$96.8M)

63% more repeat investments, than reductions

Existing positions increased: 31 | Existing positions reduced: 19

26.25% more ownership

Funds ownership: 64.97% → 91.23% (+26%)

9% less first-time investments, than exits

New positions opened: 31 | Existing positions closed: 34

4% less funds holding

Funds holding: 99 → 95 (-4)

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

Rank Fund Capital Flow
1
NMC
NEA Management Company
Maryland
+$14.1M
2
EC
EcoR1 Capital
California
+$10.6M
3
AVM
Arch Venture Management
Illinois
+$9.28M
4
Vanguard Group
Vanguard Group
Pennsylvania
+$8.86M
5
Alyeska Investment Group
Alyeska Investment Group
Illinois
+$7.84M

Top Sellers

Rank Fund Capital Flow
1
Acadian Asset Management
Acadian Asset Management
Massachusetts
-$1.77M
2
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$1.58M
3
Ensign Peak Advisors
Ensign Peak Advisors
Utah
-$1.49M
4
Two Sigma Investments
Two Sigma Investments
New York
-$1.19M
5
Two Sigma Advisers
Two Sigma Advisers
New York
-$748K
Name Holding Trade Value Shares
Change 		Change in
Stake
NMC
1
NEA Management Company
Maryland
$13.1M +$14.1M +12,260,536 +354%
Vanguard Group
2
Vanguard Group
Pennsylvania
$9.38M +$8.86M +7,686,213 +215%
EC
3
EcoR1 Capital
California
$7.66M +$10.6M +9,195,404 New
OCA
4
Octagon Capital Advisors
New York
$6.82M +$4.87M +4,229,814 +107%
AVM
5
Arch Venture Management
Illinois
$6.71M +$9.28M +8,055,916 New
Millennium Management
6
Millennium Management
New York
$5.87M +$3.28M +2,844,283 +68%
Alyeska Investment Group
7
Alyeska Investment Group
Illinois
$5.67M +$7.84M +6,803,500 New
PAI
8
Palo Alto Investors
California
$5.44M +$3.53M +3,065,136 +88%
BC
9
Boxer Capital
California
$5.41M +$3.64M +3,160,772 +95%
AG
10
Artal Group
Luxembourg
$5.33M +$3.89M +3,371,648 +111%
GPP
11
Great Point Partners
Connecticut
$5.19M +$7.18M +6,230,272 New
Citadel Advisors
12
Citadel Advisors
Florida
$5.14M +$5.46M +4,741,674 +332%
FCM
13
Farallon Capital Management
California
$5.11M +$7.06M +6,130,272 New
MAP
14
Madison Avenue Partners
New York
$5.11M +$7.06M +6,130,268 New
SB
15
Samsara BioCapital
California
$5.11M +$7.06M +6,130,268 New
SCM
16
Silverarc Capital Management
Massachusetts
$5.11M +$7.06M +6,130,268 New
NCM
17
Nantahala Capital Management
Connecticut
$5.07M +$7.02M +6,089,471 New
PIM
18
Platinum Investment Management
Australia
$4.46M +$3.45M +2,994,608 +127%
MIM
19
Monashee Investment Management
Massachusetts
$4.42M +$6.11M +5,304,212 New
HA
20
HHLR Advisors
Cayman Islands
$4.14M – – –
AC
21
Armistice Capital
New York
$4.13M +$5.71M +4,956,000 New
OM
22
Opaleye Management
Massachusetts
$3.96M +$1.6M +1,384,200 +41%
BlackRock
23
BlackRock
New York
$3.72M +$2.94M +2,554,648 +134%
EP
24
Eversept Partners
New York
$3.69M +$4.24M +3,678,160 +491%
Federated Hermes
25
Federated Hermes
Pennsylvania
$3.33M +$3.52M +3,057,419 +326%
1
2 3 4 5

GOSS Hedge Fund Activity: Q3 2023 in Review

95 of the 6,301 institutional investors tracked by Wall St. Rank reported a position in Gossamer Bio (GOSS) for Q3 2023, worth a combined $171M — up 130% from $74.4M a quarter earlier.

Sellers outnumbered buyers: 34 funds closed out of GOSS and 31 opened new positions — a net loss of 3 holders — while 19 trimmed existing stakes and 31 added.

The largest buyer was NEA Management Company, adding an estimated $14.1M. The largest seller was Acadian Asset Management, cutting an estimated $1.77M.

  • 95 institutional investors held Gossamer Bio (GOSS) as of Q3 2023, down from 99 in Q2 2023.
  • Funds reported $171M of Gossamer Bio stock for Q3 2023, up 130% quarter-over-quarter.
  • 31 funds opened new Gossamer Bio positions in Q3 2023 and 34 closed out, a net change of -3 holders.
  • The largest Gossamer Bio buyer in Q3 2023 was NEA Management Company, an estimated $14.1M added.
  • The largest Gossamer Bio seller in Q3 2023 was Acadian Asset Management, an estimated $1.77M sold.

Based on aggregated 13F filings for Q3 2023.