GOSS NASDAQ
Gossamer Bio, Inc.
1W: -39.1%
1M: -48.5%
3M: -90.6%
YTD: -93.0%
1Y: -83.0%
3Y: -82.7%
5Y: -97.7%
$0.21
+0.01 (+4.58%)
Weekly Expected Move ±9.1%
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🏦 Institutional Activity
Latest: Q1 2026244
Institutions Holding
+26 vs prior
95.2%
Ownership
-1122.58%
42
New
66
Increased
112
Reduced
69
Closed
👔 Insider Trades
13 records| Date | Name | Title | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-01-02 | Aranda Richard | officer: chief medical officer | A-Grant/Award | 93,750 | $— | $0 | Filing |
| 2026-01-02 | Christian Waage | officer: evp, tech ops and admin | A-Grant/Award | 84,500 | $— | $0 | Filing |
| 2026-01-02 | Giraudo Bryan | officer: coo/cfo | A-Grant/Award | 115,750 | $— | $0 | Filing |
| 2026-01-02 | Hasnain Faheem | officer: president & ceo | A-Grant/Award | 280,000 | $— | $0 | Filing |
| 2026-01-02 | Peterson Caryn | officer: evp, regulatory affairs | A-Grant/Award | 84,500 | $— | $0 | Filing |
| 2026-01-02 | Smith Robert Paul JR | officer: chief commercial officer | A-Grant/Award | 93,750 | $— | $0 | Filing |
| 2025-10-01 | Aranda Richard | officer: chief medical officer | A-Grant/Award | 162,500 | $— | $0 | Filing |
| 2025-10-01 | Christian Waage | officer: evp, tech ops and admin | A-Grant/Award | 125,000 | $— | $0 | Filing |
| 2025-10-01 | Giraudo Bryan | officer: coo/cfo | A-Grant/Award | 181,250 | $— | $0 | Filing |
| 2025-10-01 | Hasnain Faheem | officer: president & ceo | A-Grant/Award | 437,500 | $— | $0 | Filing |
| 2025-10-01 | Peterson Caryn | officer: evp, regulatory affairs | A-Grant/Award | 125,000 | $— | $0 | Filing |
| 2025-10-01 | Smith Robert Paul JR | officer: chief commercial officer | A-Grant/Award | 162,500 | $— | $0 | Filing |
| 2025-08-19 | Milligan Sandra | director | P-Purchase | 26,050 | $1.92 | $50K | Filing |
🏛️ Congressional Trades
0 records| Date | Politician | Chamber | Type | Amount | Filing |
|---|---|---|---|---|---|
| No congressional trades found | |||||
🏦 Top Institutional Holders
20 holders| Holder | Shares | Value | Date Reported | Filing | |
|---|---|---|---|---|---|
| BlackRock, Inc. | 16,826,695 | $6M | -230,183 | 2026-03-31 | Filing |
| Kalehua Capital Management LLC | 10,236,293 | $3M | +10,236,293 | 2026-03-31 | Filing |
| AQR CAPITAL MANAGEMENT LLC | 10,126,897 | $3M | +9,007,657 | 2026-03-31 | Filing |
| VANGUARD CAPITAL MANAGEMENT LLC | 9,394,593 | $3M | +9,394,593 | 2026-03-31 | Filing |
| ARCH Venture Management, LLC | 8,055,916 | $3M | — | 2026-03-31 | Filing |
| Octagon Capital Advisors LP | 7,750,000 | $3M | -6,165,371 | 2026-03-31 | Filing |
| Balyasny Asset Management L.P. | 5,922,298 | $2M | +4,405,607 | 2026-03-31 | Filing |
| Siren, L.L.C. | 5,208,968 | $2M | — | 2026-03-31 | Filing |
| HHLR ADVISORS, LTD. | 4,974,041 | $2M | — | 2026-03-31 | Filing |
| GEODE CAPITAL MANAGEMENT, LLC | 4,939,691 | $2M | +66,977 | 2026-03-31 | Filing |
| Qube Research & Technologies Ltd | 4,917,763 | $2M | +4,377,196 | 2026-03-31 | Filing |
| STATE STREET CORP | 4,388,109 | $1M | -4,922,860 | 2026-03-31 | Filing |
| Corient Private Wealth LLC | 3,985,383 | $1M | +139,498 | 2026-03-31 | Filing |
| Squarepoint Ops LLC | 3,398,757 | $1M | +3,177,166 | 2026-03-31 | Filing |
| GSA CAPITAL PARTNERS LLP | 3,254,233 | $1M | +3,202,373 | 2026-03-31 | Filing |
| BANK OF AMERICA CORP /DE | 3,173,725 | $1M | +1,267,056 | 2026-03-31 | Filing |
| BARCLAYS PLC | 3,065,806 | $1M | +2,489,273 | 2026-03-31 | Filing |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2,161,079 | $711K | +2,161,079 | 2026-03-31 | Filing |
| UBS Group AG | 1,883,583 | $620K | +112,202 | 2026-03-31 | Filing |
| Ensign Peak Advisors, Inc | 1,702,125 | $559K | +1,702,125 | 2026-03-31 | Filing |