As of August 04, 2026, the three largest insider holders of GOSS are Faheem Hasnain (President Ceo, 5.41Mn shares), Faheem Hasnain (President Ceo, 837.79K shares), Waage Christian (Evp, Tech Ops And Admin, 814.06K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Faheem Hasnain | President Ceo | 0 | 5,408,073 | 24 Jun, 2024 |
| Waage Christian | Evp, Tech Ops And Admin | 814,061 | 0 | 05 Jan, 2026 |
| Bryan Giraudo | Coo/Cfo | 0 | 480,010 | 20 Jun, 2024 |
| Caryn Peterson | Evp, Regulatory Affairs | 259,333 | 0 | 05 Jan, 2026 |
| Laura Carter | Chief Scientific Officer | 76,263 | 0 | 20 Mar, 2023 |
| Sandra Milligan | - | 58,050 | 0 | 20 Aug, 2025 |
| Richard Aranda | Chief Medical Officer | 463,106 | 0 | 05 Jan, 2026 |
| Robert Paul Jr Smith | Chief Commercial Officer | 260,898 | 0 | 05 Jan, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 19 Mar, 2026 | Robert Paul Jr Smith | Stock Option (Right to Buy) | D | 562,500 | - | 0 | D | D |
| 19 Mar, 2026 | Caryn Peterson | Stock Option (Right to Buy) | D | 506,250 | - | 0 | D | D |
| 19 Mar, 2026 | Faheem Hasnain | Stock Option (Right to Buy) | D | 1,680,000 | - | 0 | D | D |
| 19 Mar, 2026 | Caryn Peterson | Stock Option (Right to Buy) | D | 506,250 | - | 0 | D | D |
| 19 Mar, 2026 | Waage Christian | Stock Option (Right to Buy) | D | 506,250 | - | 0 | D | D |
| 19 Mar, 2026 | Robert Paul Jr Smith | Stock Option (Right to Buy) | D | 562,500 | - | 0 | D | D |
| 19 Mar, 2026 | Richard Aranda | Stock Option (Right to Buy) | D | 562,500 | - | 0 | D | D |
| 19 Mar, 2026 | Bryan Giraudo | Stock Option (Right to Buy) | D | 693,750 | - | 0 | D | D |
| 19 Mar, 2026 | Robert Paul Jr Smith | Stock Option (Right to Buy) | D | 562,500 | - | 0 | D | D |
| 19 Mar, 2026 | Caryn Peterson | Stock Option (Right to Buy) | D | 506,250 | - | 0 | D | D |
| 19 Mar, 2026 | Robert Paul Jr Smith | Stock Option (Right to Buy) | D | 572,000 | - | 0 | D | D |
| 19 Mar, 2026 | Bryan Giraudo | Stock Option (Right to Buy) | D | 638,000 | - | 0 | D | D |
| 19 Mar, 2026 | Caryn Peterson | Stock Option (Right to Buy) | D | 440,000 | - | 0 | D | D |
| 19 Mar, 2026 | Caryn Peterson | Stock Option (Right to Buy) | D | 440,000 | - | 0 | D | D |
| 19 Mar, 2026 | Richard Aranda | Stock Option (Right to Buy) | D | 572,000 | - | 0 | D | D |
| 19 Mar, 2026 | Caryn Peterson | Stock Option (Right to Buy) | D | 440,000 | - | 0 | D | D |
| 19 Mar, 2026 | Faheem Hasnain | Stock Option (Right to Buy) | D | 1,540,000 | - | 0 | D | D |
| 19 Mar, 2026 | Robert Paul Jr Smith | Stock Option (Right to Buy) | D | 572,000 | - | 0 | D | D |
| 19 Mar, 2026 | Robert Paul Jr Smith | Stock Option (Right to Buy) | D | 572,000 | - | 0 | D | D |
| 19 Mar, 2026 | Waage Christian | Stock Option (Right to Buy) | D | 440,000 | - | 0 | D | D |