8 insiders reported 98 Form 4 transactions for Protagonist Therapeutics, Inc (PTGX) over the past 18 months (most recent 2026-09-10). Recent activity: PATEL DINESH V PH D (President and CEO) Buy 54,174 shares, PATEL DINESH V PH D (President and CEO) Sell 54,174 shares, PATEL DINESH V PH D (President and CEO) Buy 63,548 shares, PATEL DINESH V PH D (President and CEO) Sell 63,548 shares, PATEL DINESH V PH D (President and CEO) Buy 7,278 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-10 | PATEL DINESH V PH D | President and CEO | Buy | 54,174 | $1.2M |
| 2026-09-10 | PATEL DINESH V PH D | President and CEO | Sell | 54,174 | $7.9M |
| 2026-09-10 | PATEL DINESH V PH D | President and CEO | Buy | 63,548 | $1.4M |
| 2026-09-10 | PATEL DINESH V PH D | President and CEO | Sell | 63,548 | $9.3M |
| 2026-09-10 | PATEL DINESH V PH D | President and CEO | Buy | 7,278 | $157,059 |
| 2026-09-10 | PATEL DINESH V PH D | President and CEO | Sell | 7,278 | $1.0M |
| 2026-09-08 | PATEL DINESH V PH D | President and CEO | Sell | 510 | $0 |
| 2026-08-12 | PATEL DINESH V PH D | President and CEO | Buy | 65,761 | $1.4M |
| 2026-08-12 | PATEL DINESH V PH D | President and CEO | Sell | 65,761 | $9.8M |
| 2026-08-12 | PATEL DINESH V PH D | President and CEO | Buy | 34,239 | $738,878 |
| 2026-08-12 | PATEL DINESH V PH D | President and CEO | Sell | 34,239 | $5.1M |
| 2026-06-25 | Waddill William D. | Director | Sell | 9,000 | $1.1M |
| 2026-06-25 | Waddill William D. | Director | Buy | 9,000 | $148,860 |
| 2026-06-11 | Waddill William D. | Director | Buy | 3,000 | $35,400 |
| 2026-06-11 | Waddill William D. | Director | Buy | 6,000 | $99,240 |
| 2026-06-11 | Waddill William D. | Director | Sell | 9,000 | $969,120 |
| 2026-06-01 | Waddill William D. | Director | Buy | 9,000 | $106,200 |
| 2026-06-01 | Waddill William D. | Director | Sell | 9,000 | $896,760 |
| 2026-05-14 | PATEL DINESH V PH D | President and CEO | Buy | 75,000 | $1.6M |
| 2026-05-14 | PATEL DINESH V PH D | President and CEO | Sell | 75,000 | $7.5M |
| 2026-05-12 | PATEL DINESH V PH D | President and CEO | Buy | 75,000 | $1.6M |
| 2026-05-12 | PATEL DINESH V PH D | President and CEO | Sell | 75,000 | $7.5M |
| 2026-05-11 | Giraudo Bryan | Director | Buy | 24,000 | $154,800 |
| 2026-05-11 | Giraudo Bryan | Director | Buy | 12,000 | $83,760 |
| 2026-05-11 | Giraudo Bryan | Director | Sell | 36,000 | $3.6M |
Source: SEC Form 4 filings · as of 2026-09-10