Gossamer Bio
GOSS
GOSS
123 hedge funds and large institutions have $218M invested in Gossamer Bio in 2025 Q2 according to their latest regulatory filings, with 33 funds opening new positions, 40 increasing their positions, 25 reducing their positions, and 28 closing their positions.
New
Increased
Maintained
Reduced
Closed
more call options, than puts
Call options by funds: $ | Put options by funds: $
more repeat investments, than reductions
Existing positions increased: | Existing positions reduced:
more first-time investments, than exits
New positions opened: | Existing positions closed:
more capital invested
Capital invested by funds: $ → $
4% more funds holding
Funds holding: 118 → 123 (+5)
3.14% more ownership
Funds ownership: 74.65% → 77.79% (+3.1%)
33% less funds holding in top 10
Funds holding in top 10: 3 → 2 (-1)
Holders
123
Holding in Top 10
2
Calls
$4.37M
Puts
$222K
Top Buyers
| 1 | +$11.2M | |
| 2 | +$2.81M | |
| 3 | +$1.97M | |
| 4 |
Vanguard Group
Malvern,
Pennsylvania
|
+$1.63M |
| 5 |
Renaissance Technologies
New York
|
+$1.43M |
Top Sellers
| 1 | -$3.12M | |
| 2 | -$2.71M | |
| 3 | -$2.68M | |
| 4 |
Marshall Wace
London,
United Kingdom
|
-$1.89M |
| 5 |
MAM
Monaco Asset Management
Monaco
|
-$1.6M |
