Form 4: Protagonist Therapeutics CEO Sells Shares
Insider Transaction (Form 4)
Dinesh V Ph D Patel, President and CEO and a Director of Protagonist Therapeutics, Inc, sold 125,000 shares of common stock on September 8, 2026.
Summary
- Option exercise/conversion: acquired 54,174 Common Stock at $21.58 ($1,169,075) on September 8, 2026; holds 577,142 after (Direct).
- Open-market sale: disposed of 54,174 Common Stock at $145.87 ($7,902,361) on September 8, 2026; holds 522,968 after (Direct).
- Option exercise/conversion: acquired 63,548 Common Stock at $21.58 ($1,371,366) on September 9, 2026; holds 586,516 after (Direct).
- Open-market sale: disposed of 63,548 Common Stock at $146.18 ($9,289,447) on September 9, 2026; holds 522,968 after (Direct).
- Option exercise/conversion: acquired 7,278 Common Stock at $21.58 ($157,059) on September 10, 2026; holds 530,246 after (Direct).
- Open-market sale: disposed of 7,278 Common Stock at $144.10 ($1,048,760) on September 10, 2026; holds 522,968 after (Direct).
- Option exercise/conversion: disposed of 54,174 Stock Option (right to buy) on September 8, 2026; holds 70,826 after (Direct).
- Option exercise/conversion: disposed of 63,548 Stock Option (right to buy) on September 9, 2026; holds 7,278 after (Direct).
- Option exercise/conversion: disposed of 7,278 Stock Option (right to buy) on September 10, 2026 (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $18,240,568 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
Dinesh V Ph D Patel — Director, Officer (President and CEO)
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-09-08 | Option exercise/conversion | Common Stock | 54,174 | $22 | $1.2M | 577,142 |
| 2026-09-08 | Open-market sale | Common Stock | 54,174 | $146 | $7.9M | 522,968 |
| 2026-09-09 | Option exercise/conversion | Common Stock | 63,548 | $22 | $1.4M | 586,516 |
| 2026-09-09 | Open-market sale | Common Stock | 63,548 | $146 | $9.3M | 522,968 |
| 2026-09-10 | Option exercise/conversion | Common Stock | 7,278 | $22 | $157.1K | 530,246 |
| 2026-09-10 | Open-market sale | Common Stock | 7,278 | $144 | $1.0M | 522,968 |
| 2026-09-08 | Option exercise/conversion | Stock Option (right to buy) | 54,174 | — | — | 70,826 |
| 2026-09-09 | Option exercise/conversion | Stock Option (right to buy) | 63,548 | — | — | 7,278 |
| 2026-09-10 | Option exercise/conversion | Stock Option (right to buy) | 7,278 | — | — | 0 |
Key Dates
| Date | Description |
|---|---|
| 2026-09-08 | Option exercise/conversion (54,174 shares) |
| 2026-09-08 | Open-market sale (54,174 shares) |
| 2026-09-09 | Option exercise/conversion (63,548 shares) |
| 2026-09-09 | Open-market sale (63,548 shares) |
| 2026-09-10 | Option exercise/conversion (7,278 shares) |
| 2026-09-10 | Open-market sale (7,278 shares) |
| 2026-09-08 | Option exercise/conversion (54,174 shares) |
| 2026-09-09 | Option exercise/conversion (63,548 shares) |
| 2026-09-10 | Option exercise/conversion (7,278 shares) |
Keywords
insider transaction, Form 4, PTGX, Protagonist Therapeutics, Inc, bearish, Dinesh V Ph D Patel
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