Duncan Barbara Gayle (CIK 1353128) reported 4 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-06-23). Recent activity: Buy AVIR (29,600 shares), Buy HALO (3,796 shares), Buy AVIR (29,600 shares), Buy HALO (4,165 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-23 | Atea Pharmaceuticals, Inc. (AVIR) | Director | Buy | 29,600 | $0 |
| 2026-05-07 | HALOZYME THERAPEUTICS, INC. (HALO) | Director | Buy | 3,796 | $0 |
| 2025-06-24 | Atea Pharmaceuticals, Inc. (AVIR) | Director | Buy | 29,600 | $0 |
| 2025-05-02 | HALOZYME THERAPEUTICS, INC. (HALO) | Director | Buy | 4,165 | $0 |
Source: SEC Form 4 filings · as of 2026-06-23