Giraudo Bryan (CIK 1740847) reported 9 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-05-11). Recent activity: Buy PTGX (12,000 shares), Sell PTGX (36,000 shares), Sell PTGX (12,000 shares), Sell PTGX (6,000 shares), Sell PTGX (5,130 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-11 | Protagonist Therapeutics, Inc (PTGX) | Director | Buy | 12,000 | $83,760 |
| 2026-05-11 | Protagonist Therapeutics, Inc (PTGX) | Director | Sell | 36,000 | $3.6M |
| 2026-05-11 | Protagonist Therapeutics, Inc (PTGX) | Director | Sell | 12,000 | $1.2M |
| 2026-05-11 | Protagonist Therapeutics, Inc (PTGX) | Director | Sell | 6,000 | $600,000 |
| 2026-05-11 | Protagonist Therapeutics, Inc (PTGX) | Director | Sell | 5,130 | $513,000 |
| 2026-05-11 | Protagonist Therapeutics, Inc (PTGX) | Director | Buy | 24,000 | $154,800 |
| 2026-01-06 | Protagonist Therapeutics, Inc (PTGX) | Director | Buy | 2,695 | $0 |
| 2026-01-05 | Gossamer Bio, Inc. (GOSS) | COO/CFO | Buy | 115,750 | $0 |
| 2025-10-02 | Gossamer Bio, Inc. (GOSS) | COO/CFO | Buy | 181,250 | $0 |
Source: SEC Form 4 filings · as of 2026-05-11