Gossamer Bio, Inc. (NASDAQ:GOSS) has 181 institutional investors with active 13F positions as of March 2026.
| Owner Name | Date | Shares Held | Change (QoQ) | Change (%) | Value (USD) |
|---|---|---|---|---|---|
| BlackRock, Inc. | 31 Mar, 2026 | 16,826,695 | -230,183 | -1.35% | $5,527,571.00 |
| AQR CAPITAL MANAGEMENT LLC | 31 Mar, 2026 | 10,126,897 | 9,007,657 | 804.80% | $3,326,687.00 |
| VANGUARD CAPITAL MANAGEMENT LLC | 31 Mar, 2026 | 9,394,593 | 9,394,593 | 0.00% | $3,090,821.00 |
| ARCH Venture Management, LLC | 31 Mar, 2026 | 8,055,916 | 0 | 0.00% | $2,646,368.00 |
| Octagon Capital Advisors LP | 31 Mar, 2026 | 7,750,000 | -6,165,371 | -44.31% | $2,545,875.00 |
| Kalehua Capital Management LLC | 31 Mar, 2026 | 7,471,840 | 7,471,840 | 0.00% | $2,454,499.00 |
| Samsara BioCapital, LLC | 31 Mar, 2026 | 7,222,559 | 0 | 0.00% | $2,372,611.00 |
| BALYASNY ASSET MANAGEMENT L.P. | 31 Mar, 2026 | 5,922,298 | 4,405,607 | 290.47% | $1,945,475.00 |
| ACADIAN ASSET MANAGEMENT LLC | 31 Mar, 2026 | 5,277,904 | 861,001 | 19.49% | $1,729.00 |
| Siren, L.L.C. | 31 Mar, 2026 | 5,208,968 | 0 | 0.00% | $1,711,146.00 |
| 683 Capital Management, LLC | 31 Mar, 2026 | 5,000,000 | -190,800 | -3.68% | $1,642,500.00 |
| HHLR ADVISORS, LTD. | 31 Mar, 2026 | 4,974,041 | 0 | 0.00% | $1,633,972.00 |
| GEODE CAPITAL MANAGEMENT, LLC | 31 Mar, 2026 | 4,939,691 | 66,977 | 1.37% | $1,623,125.00 |
| Qube Research & Technologies Ltd | 31 Mar, 2026 | 4,917,763 | 4,377,196 | 809.74% | $1,615,485.00 |
| TWO SIGMA INVESTMENTS, LP | 31 Mar, 2026 | 4,780,851 | 1,383,741 | 40.73% | $1,570,510.00 |
| State Street Corp | 31 Mar, 2026 | 4,388,109 | -4,922,860 | -52.87% | $1,441,494.00 |
| Corient Private Wealth LLC | 31 Mar, 2026 | 3,985,383 | -3,706,387 | -48.19% | $1,309,199.00 |
| Squarepoint Ops LLC | 31 Mar, 2026 | 3,398,757 | 3,177,166 | 1,433.80% | $1,116,492.00 |
| GSA CAPITAL PARTNERS LLP | 31 Mar, 2026 | 3,254,233 | 3,202,373 | 6,175.03% | $1,069.00 |
| Bank Of America Corp /De/ | 31 Mar, 2026 | 3,173,725 | 1,267,056 | 66.45% | $1,040,982.00 |