Over the trailing 12 months, GOSS insiders made no open-market trades in the stock.
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Faheem Hasnain | President Ceo | 10,472 | 0 | 10,472 | 26.5% | 05 Jan, 2026 |
| 2 | Waage Christian | Evp, Tech Ops And Admin | 10,176 | 0 | 10,176 | 25.8% | 05 Jan, 2026 |
| 3 | Richard Aranda | Chief Medical Officer | 5,789 | 0 | 5,789 | 14.7% | 05 Jan, 2026 |
| 4 | Bryan Giraudo | Coo/Cfo | 4,872 | 0 | 4,872 | 12.3% | 05 Jan, 2026 |
| 5 | Robert Paul Jr Smith | Chief Commercial Officer | 3,261 | 0 | 3,261 | 8.3% | 05 Jan, 2026 |
| 6 | Caryn Peterson | Evp, Regulatory Affairs | 3,242 | 0 | 3,242 | 8.2% | 05 Jan, 2026 |
| 7 | Laura Carter | Chief Scientific Officer | 953 | 0 | 953 | 2.4% | 20 Mar, 2023 |
| 8 | Sandra Milligan | Director | 726 | 0 | 726 | 1.8% | 20 Aug, 2025 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 23 Sep, 2026 | Skye Drynan | Director | Acquired A | 10,000 | $0.00 | $0 | 10,000 | Direct |
| 23 Sep, 2026 | John D Quisel | Director | Acquired A | 10,000 | $0.00 | $0 | 10,000 | Direct |
| 23 Sep, 2026 | Gregory Austin Ciongoli | Director | Acquired A | 30,000 | $0.00 | $0 | 30,000 | Direct |
| 23 Sep, 2026 | Sandra Milligan | Director | Acquired A | 10,000 | $0.00 | $0 | 10,000 | Direct |
| 23 Sep, 2026 | Steven D Nathan | Director | Acquired A | 10,000 | $0.00 | $0 | 10,000 | Direct |
| 23 Sep, 2026 | Russell J. Cox | Director | Acquired A | 10,000 | $0.00 | $0 | 10,000 | Direct |
| 23 Sep, 2026 | Thomas O Daniel | Director | Acquired A | 10,000 | $0.00 | $0 | 10,000 | Direct |
| 24 Aug, 2026 | Caryn Peterson | Chief Development Officer | Acquired A | 5,800,051 | $0.00 | $0 | 72,501 | Direct |
| 24 Aug, 2026 | Robert Paul Jr Smith | Chief Commercial Officer | Acquired A | 5,800,051 | $0.00 | $0 | 72,501 | Direct |
| 24 Aug, 2026 | Bryan Giraudo | Coo/Cfo | Acquired A | 25 | $79,999.92 | $2.00Mn | 0 | Indirect |
| 24 Aug, 2026 | Faheem Hasnain | President Ceo | Acquired A | 166 | $79,999.92 | $13.28Mn | 2 | Indirect |
| 24 Aug, 2026 | Faheem Hasnain | President Ceo | Acquired A | 5,800,051 | $0.00 | $0 | 72,501 | Direct |
| 24 Aug, 2026 | Bryan Giraudo | Coo/Cfo | Acquired A | 5,800,051 | $0.00 | $0 | 72,501 | Direct |
| 24 Aug, 2026 | Waage Christian | Evp, Tech Ops And Admin | Acquired A | 2,900,026 | $0.00 | $0 | 36,250 | Direct |
| 04 Jun, 2026 | John D Quisel | Director | Acquired A | 115,000 | $0.00 | $0 | 1,438 | Direct |
| 04 Jun, 2026 | Skye Drynan | Director | Acquired A | 115,000 | $0.00 | $0 | 1,438 | Direct |
| 04 Jun, 2026 | Steven D Nathan | Director | Acquired A | 115,000 | $0.00 | $0 | 1,438 | Direct |
| 04 Jun, 2026 | Sandra Milligan | Director | Acquired A | 115,000 | $0.00 | $0 | 1,438 | Direct |
| 04 Jun, 2026 | Thomas O Daniel | Director | Acquired A | 115,000 | $0.00 | $0 | 1,438 | Direct |
| 04 Jun, 2026 | Russell J. Cox | Director | Acquired A | 115,000 | $0.00 | $0 | 1,438 | Direct |