Gossamer Bio
GOSS
170 hedge funds and large institutions have $60.8M invested in Gossamer Bio in 2026 Q2 according to their latest regulatory filings, with 28 funds opening new positions, 62 increasing their positions, 44 reducing their positions, and 42 closing their positions.
1,700% more call options, than puts
Call options by funds: $414K | Put options by funds: $23K
41% more repeat investments, than reductions
Existing positions increased: 62 | Existing positions reduced: 44
8% more capital invested
Capital invested by funds: $56.3M → $60.8M (+$4.52M)
3.46% more ownership
Funds ownership: 72.35% → 75.81% (+3.5%)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
8% less funds holding
Funds holding: 185 → 170 (-15)
33% less first-time investments, than exits
New positions opened: 28 | Existing positions closed: 42
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
D.E. Shaw & Co
New York
|
+$11.3M |
| 2 |
DIG
DeepCurrents Investment Group
New York
|
+$10.5M |
| 3 |
6CM
683 Capital Management
New York
|
+$9.54M |
| 4 |
CCM
Context Capital Management
Lajolla,
California
|
+$8.08M |
| 5 |
WVP
Worth Venture Partners
Fort Lee,
New Jersey
|
+$6.98M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
-$2.56M |
| 2 |
Balyasny Asset Management
Chicago,
Illinois
|
-$1.62M |
| 3 |
Acadian Asset Management
Boston,
Massachusetts
|
-$973K |
| 4 |
State Street
Boston,
Massachusetts
|
-$914K |
| 5 |
Bank of America
Charlotte,
North Carolina
|
-$775K |
GOSS Hedge Fund Activity: Q2 2026 in Review
170 of the 8,305 institutional investors tracked by Wall St. Rank reported a position in Gossamer Bio (GOSS) for Q2 2026, worth a combined $60.8M — up 8% from $56.3M a quarter earlier.
Sellers outnumbered buyers: 42 funds closed out of GOSS and 28 opened new positions — a net loss of 14 holders — while 44 trimmed existing stakes and 62 added.
The largest buyer was D.E. Shaw & Co, adding an estimated $11.3M. The largest seller was BlackRock, cutting an estimated $2.56M.
- 170 institutional investors held Gossamer Bio (GOSS) as of Q2 2026, down from 185 in Q1 2026.
- Funds reported $60.8M of Gossamer Bio stock for Q2 2026, up 8% quarter-over-quarter.
- 28 funds opened new Gossamer Bio positions in Q2 2026 and 42 closed out, a net change of -14 holders.
- The largest Gossamer Bio buyer in Q2 2026 was D.E. Shaw & Co, an estimated $11.3M added.
- The largest Gossamer Bio seller in Q2 2026 was BlackRock, an estimated $2.56M sold.
Based on aggregated 13F filings for Q2 2026.