Gossamer Bio, Inc.
GOSS- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001728117
No open-market purchases or sales by Gossamer Bio, Inc. insiders were filed in the last 90 days; 170 institutions reported holding it in 13F filings for Q2 2026, worth $60.8M in total; HHLR Advisors (Hillhouse) is the only superinvestor holding it.
13F holders, Q4 2025
Institutional positions in Gossamer Bio, Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 195
- +35 vs. Q3 2025
- Shares held
- 185.0M
- +5.10M (+2.8%) vs. Q3 2025
- Total value
- $573.4M
- +$100.3M (+21.2%) vs. Q3 2025
- New holders
- 49
- 69 more added
- Sold out
- 14
- 49 more reduced
4 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting GOSS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 170 | $60.8M |
| Q1 2026 | 185 | $56.3M |
| Q4 2025 | 195 | $573.4M |
| Q3 2025 | 164 | $473.7M |
| Q2 2025 | 124 | $218.0M |
| Q1 2025 | 119 | $186.9M |
| Q4 2024 | 105 | $155.0M |
| Q3 2024 | 100 | $172.6M |
| Q2 2024 | 94 | $164.7M |
| Q1 2024 | 109 | $233.5M |
| Q4 2023 | 98 | $192.0M |
| Q3 2023 | 96 | $171.2M |
| Q2 2023 | 99 | $74.4M |
| Q1 2023 | 111 | $97.9M |
| Q4 2022 | 120 | $225.1M |
| Q3 2022 | 160 | $1.02B |
| Q2 2022 | 129 | $533.2M |
| Q1 2022 | 141 | $519.8M |
| Q4 2021 | 133 | $664.9M |
| Q3 2021 | 128 | $687.7M |
| Q2 2021 | 115 | $431.1M |
| Q1 2021 | 123 | $501.9M |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Gossamer Bio, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Alps Advisors Inc | 0 | $0 | 0.00% | −99,155−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −79,709−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −74,531−100.0% | Sold out |
| Omers Administration Corp | 0 | $0 | 0.00% | −59,100−100.0% | Sold out |
| DLD Asset Management, LP | 0 | $0 | 0.00% | −37,543−100.0% | Sold out |
| Bank of Nova Scotia | 0 | $0 | 0.00% | −35,000−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −25,969−100.0% | Sold out |
| Brighton Jones LLC | 0 | $0 | 0.00% | −13,754−100.0% | Sold out |
| GTS Securities LLC | 0 | $0 | 0.00% | −10,627−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | – | – | – | – | Not filed |
| CIBC Bancorp USA Inc. | – | – | – | – | Not filed |
| Fullcircle Wealth LLC | – | – | – | – | Not filed |
| Wolverine Trading, LLC | – | – | – | – | Not filed |