GOSS · Gossamer Bio Inc. Common Stock
View on chartInsiders & Stakes
| Faheem Hasnain President & CEO | ▲ Buy | Grant | 837,793 Shares held | 1/2/2026 | View profile |
| Christian Waage Director | ▲ Buy | Grant | 814,061 Shares held | 1/2/2026 | View profile |
| Aranda Richard Chief Medical Officer | ▲ Buy | Grant | 463,106 Shares held | 1/2/2026 | View profile |
| Bryan Giraudo COO/CFO | ▲ Buy | Grant | 389,737 Shares held | 1/2/2026 | View profile |
| Smith Robert Paul JR Chief Commercial Officer | ▲ Buy | Grant | 260,898 Shares held | 1/2/2026 | View profile |
| Peterson Caryn EVP, Regulatory Affairs | ▲ Buy | Grant | 259,333 Shares held | 1/2/2026 | View profile |
| Carter Laura Chief Scientific Officer | ▼ Sell | Open Market | 76,263 Shares held | 3/16/2023 | View profile |
| Milligan Sandra Director | ▲ Buy | Open Market | 58,050 Shares held | 8/19/2025 | View profile |
Transaction History
| Bryan Giraudo | ▲ Buy | Grant | 115,750 | $0 | 1/2/2026 |
| Smith Robert Paul JR | ▲ Buy | Grant | 93,750 | $0 | 1/2/2026 |
| Aranda Richard | ▲ Buy | Grant | 93,750 | $0 | 1/2/2026 |
| Peterson Caryn | ▲ Buy | Grant | 84,500 | $0 | 1/2/2026 |
| Christian Waage | ▲ Buy | Grant | 84,500 | $0 | 1/2/2026 |
| Faheem Hasnain | ▲ Buy | Grant | 280,000 | $0 | 1/2/2026 |
| Smith Robert Paul JR | ▲ Buy | Grant | 162,500 | $0 | 10/1/2025 |
| Christian Waage | ▲ Buy | Grant | 125,000 | $0 | 10/1/2025 |
| Bryan Giraudo | ▲ Buy | Grant | 181,250 | $0 | 10/1/2025 |
| Aranda Richard | ▲ Buy | Grant | 162,500 | $0 | 10/1/2025 |
| Faheem Hasnain | ▲ Buy | Grant | 437,500 | $0 | 10/1/2025 |
| Peterson Caryn | ▲ Buy | Grant | 125,000 | $0 | 10/1/2025 |
| Milligan Sandra | ▲ Buy | Open Market | 26,050 | $50K | 8/19/2025 |
| Aranda Richard | ▼ Sell | Open Market | 1,908 | $1K | 6/24/2024 |
| Faheem Hasnain | ▲ Buy | Open Market | 372,000 | $250K | 6/21/2024 |
| Bryan Giraudo | ▲ Buy | Open Market | 100,000 | $59K | 6/18/2024 |
| Smith Robert Paul JR | ▲ Buy | Open Market | 25,000 | $15K | 6/17/2024 |
| Christian Waage | ▼ Sell | Open Market | 6,430 | $7K | 3/27/2024 |
| Bryan Giraudo | ▼ Sell | Open Market | 6,430 | $7K | 3/27/2024 |
| Faheem Hasnain | ▼ Sell | Open Market | 23,172 | $27K | 3/27/2024 |
| Aranda Richard | ▼ Sell | Open Market | 4,018 | $5K | 3/18/2024 |
| Peterson Caryn | ▼ Sell | Open Market | 4,018 | $5K | 3/18/2024 |
| Milligan Sandra | ▲ Buy | Open Market | 32,000 | $25K | 11/15/2023 |
| Bryan Giraudo | ▲ Buy | Open Market | 200,000 | $113K | 11/13/2023 |
| Bryan Giraudo | ▲ Buy | Grant | 54,020 | $98K | 7/24/2023 |
| Faheem Hasnain | ▲ Buy | Grant | 540,176 | $983K | 7/24/2023 |
| Christian Waage | ▲ Buy | Grant | 13,504 | $25K | 7/24/2023 |
| Aranda Richard | ▼ Sell | Open Market | 1,814 | $2K | 6/22/2023 |
| Bryan Giraudo | ▲ Buy | Open Market | 55,000 | $56K | 4/4/2023 |
| Faheem Hasnain | ▲ Buy | Open Market | 440,500 | $504K | 3/22/2023 |
| Faheem Hasnain | ▲ Buy | Open Market | 269,389 | $322K | 3/21/2023 |
| Christian Waage | ▲ Buy | Open Market | 18,500 | $22K | 3/20/2023 |
| Bryan Giraudo | ▲ Buy | Open Market | 50,000 | $48K | 3/20/2023 |
| Faheem Hasnain | ▲ Buy | Open Market | 168,683 | $174K | 3/20/2023 |
| Aranda Richard | ▼ Sell | Open Market | 7,563 | $8K | 3/16/2023 |
| Carter Laura | ▼ Sell | Open Market | 6,029 | $7K | 3/16/2023 |
| Peterson Caryn | ▼ Sell | Open Market | 7,564 | $8K | 3/16/2023 |
| Peterson Caryn | ▼ Sell | Open Market | 4,757 | $57K | 10/24/2022 |
| Carter Laura | ▼ Sell | Open Market | 4,876 | $59K | 10/24/2022 |
| Aranda Richard | ▼ Sell | Open Market | 4,757 | $57K | 10/24/2022 |
| Christian Waage | ▲ Buy | Open Market | 6,934 | $50K | 7/15/2022 |
| Bryan Giraudo | ▲ Buy | Open Market | 13,869 | $100K | 7/15/2022 |
| Faheem Hasnain | ▲ Buy | Open Market | 138,696 | $1000K | 7/15/2022 |
| Carter Laura | ▲ Buy | Open Market | 6,934 | $50K | 7/15/2022 |
| Carter Laura | ▼ Sell | Open Market | 8,808 | $73K | 7/1/2022 |
| Aranda Richard | ▼ Sell | Open Market | 1,778 | $12K | 6/22/2022 |
| Carter Laura | ▼ Sell | Open Market | 1,262 | $9K | 5/4/2022 |
| Christian Waage | ▼ Sell | Open Market | 10,722 | $96K | 3/23/2022 |
| Faheem Hasnain | ▼ Sell | Open Market | 19,035 | $170K | 3/23/2022 |
| Bryan Giraudo | ▼ Sell | Open Market | 10,722 | $96K | 3/23/2022 |
| Carter Laura | ▼ Sell | Open Market | 5,002 | $41K | 3/16/2022 |
| Peterson Caryn | ▼ Sell | Open Market | 6,279 | $52K | 3/16/2022 |
| Aranda Richard | ▼ Sell | Open Market | 6,278 | $52K | 3/16/2022 |
| Peterson Caryn | ▼ Sell | Open Market | 2,377 | $29K | 10/25/2021 |
| Carter Laura | ▼ Sell | Open Market | 2,377 | $29K | 10/25/2021 |
| Aranda Richard | ▼ Sell | Open Market | 2,377 | $29K | 10/25/2021 |