GOSS Gossamer Bio, Inc.
Nasdaq · SEC CIK 1728117 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $0 0 sales by 0 insiders
- Filings on record
- 135 since 2021-07-01, latest 2026-08-26 18:13
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| Smith Robert Paul JR | Chief Commercial Off | — | — |
| Aranda Richard | Chief Medical Off | — | — |
| Peterson Caryn | EVP, Regulatory Affairs | — | — |
| Giraudo Bryan | COO, CFO | — | — |
| Christian Waage | EVP, Tech Ops, Admin | — | — |
| Hasnain Faheem | Pres, CEO, Dir | — | — |
Transactions 56
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-01-05 | 2026-01-02 | GOSS | Giraudo Bryan | COO, CFO | A - Grant | $0.00 | +115.8K | 389.7K | +42% | $0 |
| D | 2026-01-05 | 2026-01-02 | GOSS | Christian Waage | EVP, Tech Ops, Admin | A - Grant | $0.00 | +84.5K | 814.1K | +12% | $0 |
| D | 2026-01-05 | 2026-01-02 | GOSS | Hasnain Faheem | Pres, CEO, Dir | A - Grant | $0.00 | +280.0K | 837.8K | +50% | $0 |
| D | 2026-01-05 | 2026-01-02 | GOSS | Aranda Richard | Chief Medical Off | A - Grant | $0.00 | +93.8K | 463.1K | +25% | $0 |
| D | 2026-01-05 | 2026-01-02 | GOSS | Peterson Caryn | EVP, Regulatory Affairs | A - Grant | $0.00 | +84.5K | 259.3K | +48% | $0 |
| D | 2026-01-05 | 2026-01-02 | GOSS | Smith Robert Paul JR | Chief Commercial Off | A - Grant | $0.00 | +93.8K | 260.9K | +56% | $0 |
| 2025-10-02 | 2025-10-01 | GOSS | Christian Waage | EVP, Tech Ops, Admin | A - Grant | $0.00 | +125.0K | 710.9K | +21% | $0 | |
| 2025-10-02 | 2025-10-01 | GOSS | Smith Robert Paul JR | Chief Commercial Off | A - Grant | $0.00 | +162.5K | 162.5K | New | $0 | |
| 2025-10-02 | 2025-10-01 | GOSS | Giraudo Bryan | COO, CFO | A - Grant | $0.00 | +181.2K | 274.0K | +195% | $0 | |
| 2025-10-02 | 2025-10-01 | GOSS | Peterson Caryn | EVP, Regulatory Affairs | A - Grant | $0.00 | +125.0K | 174.8K | +251% | $0 | |
| 2025-10-02 | 2025-10-01 | GOSS | Aranda Richard | Chief Medical Off | A - Grant | $0.00 | +162.5K | 369.4K | +79% | $0 | |
| 2025-10-02 | 2025-10-01 | GOSS | Hasnain Faheem | Pres, CEO, Dir | A - Grant | $0.00 | +437.5K | 557.8K | +364% | $0 | |
| 2025-08-20 | 2025-08-19 | GOSS | Milligan Sandra | Dir | P - Purchase | $1.92 | +26.1K | 58.0K | +81% | +$50.0K | |
| 2024-06-25 | 2024-06-24 | GOSS | Aranda Richard | Chief Medical Off | S - Sale | $0.66 | -1,908 | 196.9K | -1.0% | -$1,259 | |
| I | 2024-06-24 | 2024-06-21 | GOSS | Hasnain Faheem | Pres, CEO, Dir | P - Purchase | $0.67 | +372.0K | 5.41M | +7% | +$249.2K |
| I | 2024-06-20 | 2024-06-17 | GOSS | Smith Robert Paul JR | Chief Commercial Off | P - Purchase | $0.6 | +25.0K | 25.0K | New | +$15.0K |
| I | 2024-06-20 | 2024-06-18 | GOSS | Giraudo Bryan | COO, CFO | P - Purchase | $0.59 | +100.0K | 480.0K | +26% | +$59.0K |
| 2024-03-28 | 2024-03-27 | GOSS | Hasnain Faheem | Pres, CEO, Dir | S - Sale | $1.16 | -23.2K | 120.3K | -16% | -$26.9K | |
| 2024-03-28 | 2024-03-27 | GOSS | Giraudo Bryan | COO, CFO | S - Sale | $1.16 | -6,430 | 92.7K | -6% | -$7,459 | |
| 2024-03-28 | 2024-03-27 | GOSS | Christian Waage | EVP, Tech Ops, Admin | S - Sale | $1.16 | -6,430 | 585.9K | -1% | -$7,459 | |
| 2024-03-19 | 2024-03-18 | GOSS | Peterson Caryn | EVP, Regulatory Affairs | S - Sale | $1.33 | -4,018 | 49.8K | -7% | -$5,344 | |
| 2024-03-19 | 2024-03-18 | GOSS | Aranda Richard | Chief Medical Off | S - Sale | $1.33 | -4,018 | 198.8K | -2% | -$5,344 | |
| I | 2023-11-17 | 2023-11-15 | GOSS | Milligan Sandra | Dir | P - Purchase | $0.79 | +32.0K | 32.0K | New | +$25.3K |
| I | 2023-11-14 | 2023-11-13 | GOSS | Giraudo Bryan | COO, CFO | P - Purchase | $0.56 | +200.0K | 380.0K | +111% | +$112.0K |
| DI | 2023-07-26 | 2023-07-24 | GOSS | Giraudo Bryan | COO, CFO | A - Grant | $1.82 | +54.0K | 180.0K | +43% | +$98.3K |
| DI | 2023-07-26 | 2023-07-24 | GOSS | Christian Waage | EVP, Tech Ops, Admin | A - Grant | $1.82 | +13.5K | 45.9K | +42% | +$24.6K |
| DI | 2023-07-26 | 2023-07-24 | GOSS | Hasnain Faheem | Pres, CEO, Dir | A - Grant | $1.82 | +540.2K | 5.04M | +12% | +$983.1K |
| 2023-06-26 | 2023-06-22 | GOSS | Aranda Richard | Chief Medical Off | S - Sale | $1.29 | -1,814 | 197.6K | -0.9% | -$2,340 | |
| I | 2023-04-05 | 2023-04-04 | GOSS | Giraudo Bryan | COO, CFO | P - Purchase | $1.02 | +55.0K | 126.0K | +77% | +$56.1K |
| DI | 2023-03-22 | 2023-03-20 | GOSS | Giraudo Bryan | COO, CFO | P - Purchase | $0.97 | +50.0K | 71.0K | +238% | +$48.5K |
| DMI | 2023-03-22 | 2023-03-20+ | GOSS | Hasnain Faheem | Pres, CEO, Dir | P - Purchase | $1.14 | +878.6K | 4.50M | +24% | +$999.2K |
| DI | 2023-03-22 | 2023-03-20 | GOSS | Christian Waage | EVP, Tech Ops, Admin | P - Purchase | $1.20 | +18.5K | 32.4K | +133% | +$22.2K |
| 2023-03-20 | 2023-03-16 | GOSS | Aranda Richard | Chief Medical Off | S - Sale | $1.10 | -7,563 | 199.4K | -4% | -$8,319 | |
| 2023-03-20 | 2023-03-16 | GOSS | Carter Laura | CSO | S - Sale | $1.10 | -6,029 | 76.3K | -7% | -$6,632 | |
| 2023-03-20 | 2023-03-16 | GOSS | Peterson Caryn | EVP, Regulatory Affairs | S - Sale | $1.10 | -7,564 | 53.9K | -12% | -$8,320 | |
| A | 2022-10-27 | 2022-10-24 | GOSS | Carter Laura | CSO | S - Sale | $12.07 | -4,876 | 82.3K | -6% | -$58.9K |
| 2022-10-25 | 2022-10-24 | GOSS | Carter Laura | CSO | S - Sale | $12.07 | -4,876 | 82.3K | -6% | -$58.9K | |
| 2022-10-25 | 2022-10-24 | GOSS | Aranda Richard | Chief Medical Off | S - Sale | $12.07 | -4,757 | 205.4K | -2% | -$57.4K | |
| 2022-10-25 | 2022-10-24 | GOSS | Peterson Caryn | EVP, Regulatory Affairs | S - Sale | $12.07 | -4,757 | 61.4K | -7% | -$57.4K | |
| I | 2022-07-15 | 2022-07-15 | GOSS | Hasnain Faheem | Pres, CEO, Dir | P - Purchase | $7.21 | +138.7K | 3.62M | +4% | +$1000.0K |
| I | 2022-07-15 | 2022-07-15 | GOSS | Giraudo Bryan | COO, CFO | P - Purchase | $7.21 | +13.9K | 21.0K | +195% | +$100.0K |
| I | 2022-07-15 | 2022-07-15 | GOSS | Christian Waage | EVP, Tech Ops, Admin | P - Purchase | $7.21 | +6,934 | 13.9K | +100% | +$50.0K |
| 2022-07-15 | 2022-07-15 | GOSS | Carter Laura | CSO | P - Purchase | $7.21 | +6,934 | 87.2K | +9% | +$50.0K | |
| 2022-07-05 | 2022-07-01 | GOSS | Carter Laura | CSO | S - Sale | $8.25 | -8,808 | 80.2K | -10% | -$72.7K | |
| 2022-06-23 | 2022-06-22 | GOSS | Aranda Richard | Chief Medical Off | S - Sale | $6.88 | -1,778 | 209.9K | -0.8% | -$12.2K | |
| 2022-05-05 | 2022-05-04 | GOSS | Carter Laura | CSO | S - Sale | $7.20 | -1,262 | 89.0K | -1% | -$9,086 | |
| 2022-03-24 | 2022-03-23 | GOSS | Giraudo Bryan | COO, CFO | S - Sale | $8.92 | -10.7K | 99.2K | -10% | -$95.6K | |
| 2022-03-24 | 2022-03-23 | GOSS | Hasnain Faheem | Pres, CEO, Dir | S - Sale | $8.92 | -19.0K | 143.5K | -12% | -$169.8K | |
| 2022-03-24 | 2022-03-23 | GOSS | Christian Waage | EVP, Tech Ops, Admin | S - Sale | $8.92 | -10.7K | 579.0K | -2% | -$95.6K | |
| 2022-03-17 | 2022-03-16 | GOSS | Peterson Caryn | EVP, Regulatory Affairs | S - Sale | $8.28 | -6,279 | 66.2K | -9% | -$52.0K | |
| 2022-03-17 | 2022-03-16 | GOSS | Aranda Richard | Chief Medical Off | S - Sale | $8.28 | -6,278 | 211.7K | -3% | -$52.0K | |
| 2022-03-17 | 2022-03-16 | GOSS | Carter Laura | CSO | S - Sale | $8.28 | -5,002 | 90.3K | -5% | -$41.4K | |
| 2021-10-26 | 2021-10-25 | GOSS | Peterson Caryn | EVP, Regulatory Affairs | S - Sale | $12.25 | -2,377 | 72.5K | -3% | -$29.1K | |
| 2021-10-26 | 2021-10-25 | GOSS | Aranda Richard | Chief Medical Off | S - Sale | $12.25 | -2,377 | 217.4K | -1% | -$29.1K | |
| 2021-10-26 | 2021-10-25 | GOSS | Carter Laura | CSO | S - Sale | $12.25 | -2,377 | 95.3K | -2% | -$29.1K | |
| 2021-07-01 | 2021-06-30 | GOSS | Carter Laura | CSO | A - Grant | $0.00 | +25.0K | 97.7K | +34% | $0 |
Purchase Sale Sale after option exercise All abbreviations