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 100,000 shares of common stock on August 10, 2026.
Summary
- Option exercise/conversion: acquired 65,761 Common Stock at $21.58 ($1,419,122) on August 10, 2026; holds 589,239 after (Direct).
- Open-market sale: disposed of 65,761 Common Stock at $149.11 ($9,805,623) on August 10, 2026; holds 523,478 after (Direct).
- Option exercise/conversion: acquired 34,239 Common Stock at $21.58 ($738,878) on August 11, 2026; holds 557,717 after (Direct).
- Open-market sale: disposed of 34,239 Common Stock at $148.52 ($5,085,176) on August 11, 2026; holds 523,478 after (Direct).
- Option exercise/conversion: disposed of 65,761 Stock Option (right to buy) on August 10, 2026; holds 159,239 after (Direct).
- Option exercise/conversion: disposed of 34,239 Stock Option (right to buy) on August 11, 2026; holds 125,000 after (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $14,890,799 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 |
|---|---|---|---|---|---|---|
| 2026-08-10 | Option exercise/conversion | Common Stock | 65,761 | $22 | $1.4M | 589,239 |
| 2026-08-10 | Open-market sale | Common Stock | 65,761 | $149 | $9.8M | 523,478 |
| 2026-08-11 | Option exercise/conversion | Common Stock | 34,239 | $22 | $738.9K | 557,717 |
| 2026-08-11 | Open-market sale | Common Stock | 34,239 | $149 | $5.1M | 523,478 |
| 2026-08-10 | Option exercise/conversion | Stock Option (right to buy) | 65,761 | — | — | 159,239 |
| 2026-08-11 | Option exercise/conversion | Stock Option (right to buy) | 34,239 | — | — | 125,000 |
Key Dates
| Date | Description |
|---|---|
| 2026-08-10 | Option exercise/conversion (65,761 shares) |
| 2026-08-10 | Open-market sale (65,761 shares) |
| 2026-08-11 | Option exercise/conversion (34,239 shares) |
| 2026-08-11 | Open-market sale (34,239 shares) |
| 2026-08-10 | Option exercise/conversion (65,761 shares) |
| 2026-08-11 | Option exercise/conversion (34,239 shares) |
Keywords
insider transaction, Form 4, PTGX, Protagonist Therapeutics, Inc, bearish, Dinesh V Ph D Patel
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