Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2025-08-19 Purchase | 2025-08-20 4:04 pm | Gossamer Bio Inc. | GOSS | Milligan Sandra Director | 26,050 | $1.92 | $50,016 | 58,050 (Direct) | View |
| 2024-06-24 Sale | 2024-06-25 6:24 pm | Gossamer Bio Inc. | GOSS | Aranda Richard Chief Medical Officer | 1,908 | $0.6605 | $1,260 | 199,430 (Indirect Direct) | View |
| 2024-06-21 Purchase | 2024-06-24 5:52 pm | Gossamer Bio Inc. | GOSS | Hasnain Faheem President & CEO | 372,000 | $0.6728 | $250,282 | 5,528,366 (Indirect Direct) | View |
| 2024-06-18 Purchase | 2024-06-20 8:21 pm | Gossamer Bio Inc. | GOSS | Giraudo Bryan COO/CFO | 100,000 | $0.5911 | $59,110 | 480,010 (Indirect) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2026-06-04 Option Award | 2026-06-05 5:45 pm | N/A 2036-06-03 | Gossamer Bio Inc. | GOSS | Quisel John D Director | 115,000 | $0 | 115,000 (Direct) | View |
| 2026-06-04 Option Award | 2026-06-05 4:30 pm | N/A 2036-06-03 | Gossamer Bio Inc. | GOSS | Drynan Skye Director | 115,000 | $0 | 115,000 (Direct) | View |
| 2026-06-04 Option Award | 2026-06-05 4:30 pm | N/A 2036-06-03 | Gossamer Bio Inc. | GOSS | Daniel Thomas O Director | 115,000 | $0 | 115,000 (Direct) | View |
| 2026-06-04 Option Award | 2026-06-05 4:29 pm | N/A 2036-06-03 | Gossamer Bio Inc. | GOSS | Cox Russell J. Director | 115,000 | $0 | 115,000 (Direct) | View |
| 2026-06-04 Option Award | 2026-06-05 4:28 pm | N/A 2036-06-03 | Gossamer Bio Inc. | GOSS | Milligan Sandra Director | 115,000 | $0 | 115,000 (Direct) | View |
| 2026-06-04 Option Award | 2026-06-05 4:27 pm | N/A 2036-06-03 | Gossamer Bio Inc. | GOSS | Nathan Steven D Director | 115,000 | $0 | 115,000 (Direct) | View |
| 2026-03-19 Option Award | 2026-03-20 4:22 pm | N/A 2036-01-01 | Gossamer Bio Inc. | GOSS | Aranda Richard Chief Medical Officer | 2,348,118 | $0 | 2,348,118 (Direct) | View |
| 2026-03-19 Option Award | 2026-03-20 4:20 pm | N/A 2036-01-01 | Gossamer Bio Inc. | GOSS | Peterson Caryn EVP, Regulatory Affairs | 1,992,203 | $0 | 1,992,203 (Direct) | View |
| 2026-03-19 Option Award | 2026-03-20 4:19 pm | N/A 2036-01-01 | Gossamer Bio Inc. | GOSS | Smith Robert Paul JR Chief Commercial Officer | 1,134,500 | $0 | 1,134,500 (Direct) | View |
| 2026-03-19 Option Award | 2026-03-20 4:17 pm | N/A 2036-01-01 | Gossamer Bio Inc. | GOSS | Hasnain Faheem President & CEO | 7,124,500 | $0 | 7,124,500 (Direct) | View |
| 2026-03-19 Option Award | 2026-03-20 4:16 pm | N/A 2036-01-01 | Gossamer Bio Inc. | GOSS | Giraudo Bryan COO/CFO | 2,960,751 | $0 | 2,960,751 (Direct) | View |
| 2026-03-19 Option Award | 2026-03-20 4:14 pm | N/A 2036-01-01 | Gossamer Bio Inc. | GOSS | Christian Waage EVP, Tech Ops and Admin | 2,065,584 | $0 | 2,065,584 (Direct) | View |
| 2026-01-02 Option Award | 2026-01-05 4:40 pm | N/A 2036-01-01 | Gossamer Bio Inc. | GOSS | Hasnain Faheem President & CEO | 1,960,000 | $0 | 7,925,866 (Direct) | View |
| 2026-01-02 Option Award | 2026-01-05 4:39 pm | N/A 2036-01-01 | Gossamer Bio Inc. | GOSS | Giraudo Bryan COO/CFO | 809,500 | $0 | 1,563,497 (Direct) | View |
| 2026-01-02 Option Award | 2026-01-05 4:38 pm | N/A 2036-01-01 | Gossamer Bio Inc. | GOSS | Smith Robert Paul JR Chief Commercial Officer | 656,250 | $0 | 848,398 (Direct) | View |
| 2026-01-02 Option Award | 2026-01-05 4:38 pm | N/A 2036-01-01 | Gossamer Bio Inc. | GOSS | Aranda Richard Chief Medical Officer | 656,250 | $0 | 1,028,145 (Direct) | View |
| 2026-01-02 Option Award | 2026-01-05 4:37 pm | N/A 2036-01-01 | Gossamer Bio Inc. | GOSS | Peterson Caryn EVP, Regulatory Affairs | 590,750 | $0 | 765,583 (Direct) | View |
| 2026-01-02 Option Award | 2026-01-05 4:35 pm | N/A 2036-01-01 | Gossamer Bio Inc. | GOSS | Christian Waage EVP, Tech Ops and Admin | 590,750 | $0 | 1,388,425 (Direct) | View |
| 2025-10-01 Option Award | 2025-10-02 4:13 pm | N/A N/A | Gossamer Bio Inc. | GOSS | Smith Robert Paul JR Chief Commercial Officer | 162,500 | $0 | 187,500 (Direct) | View |
| 2025-10-01 Option Award | 2025-10-02 4:13 pm | N/A N/A | Gossamer Bio Inc. | GOSS | Christian Waage EVP, Tech Ops and Admin | 125,000 | $0 | 779,048 (Direct) | View |
| 2025-10-01 Option Award | 2025-10-02 4:13 pm | N/A N/A | Gossamer Bio Inc. | GOSS | Giraudo Bryan COO/CFO | 181,250 | $0 | 753,997 (Direct) | View |
| 2025-10-01 Option Award | 2025-10-02 4:13 pm | N/A N/A | Gossamer Bio Inc. | GOSS | Aranda Richard Chief Medical Officer | 162,500 | $0 | 371,895 (Direct) | View |
| 2025-10-01 Option Award | 2025-10-02 4:13 pm | N/A N/A | Gossamer Bio Inc. | GOSS | Hasnain Faheem President & CEO | 437,500 | $0 | 5,965,866 (Direct) | View |
| 2025-10-01 Option Award | 2025-10-02 4:11 pm | N/A N/A | Gossamer Bio Inc. | GOSS | Peterson Caryn EVP, Regulatory Affairs | 125,000 | $0 | 174,833 (Direct) | View |
| 2025-06-25 Option Award | 2025-06-26 4:40 pm | N/A 2035-06-24 | Gossamer Bio Inc. | GOSS | Daniel Thomas O Director | 115,000 | $0 | 115,000 (Direct) | View |
| 2025-06-25 Option Award | 2025-06-26 4:39 pm | N/A 2035-06-24 | Gossamer Bio Inc. | GOSS | Nathan Steven D Director | 115,000 | $0 | 115,000 (Direct) | View |
| 2025-06-25 Option Award | 2025-06-26 4:38 pm | N/A 2035-06-24 | Gossamer Bio Inc. | GOSS | Cox Russell J. Director | 115,000 | $0 | 115,000 (Direct) | View |
| 2025-06-25 Option Award | 2025-06-26 4:37 pm | N/A 2035-06-24 | Gossamer Bio Inc. | GOSS | Quisel John D Director | 115,000 | $0 | 115,000 (Direct) | View |
| 2025-06-25 Option Award | 2025-06-26 4:36 pm | N/A 2035-06-24 | Gossamer Bio Inc. | GOSS | Milligan Sandra Director | 115,000 | $0 | 115,000 (Direct) | View |
| 2025-06-25 Option Award | 2025-06-26 4:35 pm | N/A 2035-06-24 | Gossamer Bio Inc. | GOSS | Drynan Skye Director | 115,000 | $0 | 115,000 (Direct) | View |
| 2025-03-04 Option Award | 2025-03-06 4:09 pm | N/A 2035-03-03 | Gossamer Bio Inc. | GOSS | Peterson Caryn EVP, Regulatory Affairs | 440,000 | $0 | 440,000 (Direct) | View |
| 2025-03-04 Option Award | 2025-03-06 4:08 pm | N/A 2035-03-03 | Gossamer Bio Inc. | GOSS | Christian Waage EVP, Tech Ops and Admin | 440,000 | $0 | 440,000 (Direct) | View |
| 2025-03-04 Option Award | 2025-03-06 4:06 pm | N/A 2035-03-03 | Gossamer Bio Inc. | GOSS | Smith Robert Paul JR Chief Commercial Officer | 572,000 | $0 | 572,000 (Direct) | View |
| 2025-03-04 Option Award | 2025-03-06 4:05 pm | N/A 2035-03-03 | Gossamer Bio Inc. | GOSS | Aranda Richard Chief Medical Officer | 572,000 | $0 | 572,000 (Direct) | View |
| 2025-03-04 Option Award | 2025-03-06 4:04 pm | N/A 2035-03-03 | Gossamer Bio Inc. | GOSS | Giraudo Bryan COO/CFO | 638,000 | $0 | 638,000 (Direct) | View |
| 2025-03-04 Option Award | 2025-03-06 4:03 pm | N/A 2035-03-03 | Gossamer Bio Inc. | GOSS | Hasnain Faheem President & CEO | 1,540,000 | $0 | 1,540,000 (Direct) | View |