Institutional Ownership Gossamer Bio, Inc. (GOSS)
This table provides information about the institutional ownership of Gossamer Bio, Inc. (GOSS). We have compiled data on the 181 institutions that hold shares in the stock, with a total of 163 Million shares, which have been reported (via 13F filing form) to have a value of $443 Million.
| Holding | Report Date | shares Held | Holding Value (Reported) | Last Trade | Trade History |
|---|---|---|---|---|---|
|
Nea Management Company, LLC
Timonium, MD |
Nov 14, 2025 Q3 2025 |
18,093,034
shares
|
$49 Million
2.97% of portfolio
|
Q2 2024
Added 14.24%
|
|
|
Octagon Capital Advisors LP
New York, NY |
Nov 14, 2025 Q3 2025 |
17,050,000
shares
|
$46.2 Million
14.61% of portfolio
|
Q3 2025
Reduced 7.08%
|
|
|
Vanguard Group Inc
Valley Forge, PA |
Nov 07, 2025 Q3 2025 |
12,009,773
shares
|
$32.5 Million
0.0% of portfolio
|
Q3 2025
Added 5.25%
|
|
|
Arch Venture Management, LLC
Chicago, IL |
Nov 14, 2025 Q3 2025 |
8,055,916
shares
|
$21.8 Million
9.24% of portfolio
|
Q3 2023
New holding
|
|
|
Samsara Bio Capital, LLC
Palo Alto, CA |
Nov 14, 2025 Q3 2025 |
6,130,268
shares
|
$16.6 Million
6.11% of portfolio
|
Q3 2023
New holding
|
|
|
Palo Alto Investors LP
Palo Alto, CA |
Nov 14, 2025 Q3 2025 |
5,464,349
shares
|
$14.8 Million
2.85% of portfolio
|
Q3 2025
Reduced 4.79%
|
|
|
Siren, L.L.C.
New York, NY |
Nov 13, 2025 Q3 2025 |
5,208,968
shares
|
$14.1 Million
0.54% of portfolio
|
Q4 2024
Reduced 60.78%
|
|
|
683 Capital Management, LLC
New York, NY |
Nov 14, 2025 Q3 2025 |
5,059,200
shares
|
$13.7 Million
0.79% of portfolio
|
Q3 2025
Reduced 20.2%
|
|
|
Acadian Asset Management LLC
Boston, MA |
Nov 13, 2025 Q3 2025 |
5,012,969
shares
|
$13.6 Million
0.02% of portfolio
|
Q3 2025
Reduced 29.85%
|
|
|
Hhlr Advisors, Ltd.
Grand Cayman, E9 |
Nov 14, 2025 Q3 2025 |
4,974,041
shares
|
$13.5 Million
0.39% of portfolio
|
Q4 2022
Reduced 32.97%
|
|
|
Silverarc Capital Management, LLC
|
Nov 12, 2025 Q3 2025 |
4,779,082
shares
|
$13 Million
2.59% of portfolio
|
Q3 2025
Reduced 7.14%
|
|
|
Geode Capital Management, LLC
Boston, MA |
Nov 12, 2025 Q3 2025 |
4,689,531
shares
|
$12.7 Million
0.0% of portfolio
|
Q3 2025
Added 2.95%
|
|
|
State Street Corp
Boston, MA |
Nov 14, 2025 Q3 2025 |
3,883,667
shares
|
$10.5 Million
0.0% of portfolio
|
Q3 2025
Added 56.51%
|
|
|
Perceptive Advisors LLC
New York, NY |
Nov 14, 2025 Q3 2025 |
3,812,797
shares
|
$10.3 Million
0.02% of portfolio
|
Q3 2025
New holding
|
|
|
Israel Englander
Millennium Management LLC | New York, Ny
|
Nov 14, 2025 Q3 2025 |
3,619,329
shares
|
$9.81 Million
0.0% of portfolio
|
Q3 2025
Added 629.34%
|
|
|
Rock Springs Capital Management LP
Baltimore, MD |
Nov 14, 2025 Q3 2025 |
3,266,960
shares
|
$8.85 Million
0.57% of portfolio
|
Q3 2023
Added 196.92%
|
|
|
Jim Simons
Renaissance Technologies LLC | New York, Ny
|
Nov 13, 2025 Q3 2025 |
2,980,188
shares
|
$8.08 Million
0.01% of portfolio
|
Q3 2025
Added 9.07%
|
|
|
Bank Of America Corp
Charlotte, NC |
Nov 14, 2025 Q3 2025 |
2,881,904
shares
|
$7.81 Million
0.0% of portfolio
|
Q3 2025
Added 4196.22%
|
|
|
Black Rock Inc.
New York, NY |
Aug 13, 2024 Q2 2024 |
2,811,507
shares
|
$7.62 Million
0.0% of portfolio
|
Q2 2024
Reduced 8.99%
|
|
|
Ubs Group Ag
|
Nov 13, 2025 Q3 2025 |
2,770,046
shares
|
$7.51 Million
0.0% of portfolio
|
Q3 2025
Added 785.73%
|
|
|
Opaleye Management Inc.
Boston, MA |
Nov 14, 2025 Q3 2025 |
2,725,000
shares
|
$7.38 Million
1.19% of portfolio
|
Q3 2025
Reduced 23.13%
|
|
|
Two Sigma Investments, LP
New York, NY |
Nov 14, 2025 Q3 2025 |
2,287,251
shares
|
$6.2 Million
0.01% of portfolio
|
Q3 2025
Added 31.07%
|
|
|
Ken Griffin
Citadel Advisors LLC | Chicago, Il
|
Nov 14, 2025 Q3 2025 |
2,284,216
shares
|
$6.19 Million
0.0% of portfolio
|
Q3 2025
Added 197.59%
|
|
|
Alyeska Investment Group, L.P.
Chicago, IL |
Nov 14, 2025 Q3 2025 |
1,909,087
shares
|
$5.17 Million
0.02% of portfolio
|
Q3 2025
Reduced 57.19%
|
|
|
David A. Siegel
Two Sigma Advisers, LP | New York, Ny
|
Nov 14, 2025 Q3 2025 |
1,870,100
shares
|
$5.07 Million
0.01% of portfolio
|
Q3 2025
Added 11.83%
|
|