Form 4: Twist Bioscience Director Sells Shares
Insider Transaction (Form 4)
Robert Chess, a Director of Twist Bioscience Corp, sold 18,417 shares of common stock on August 7, 2026 for $110.89 per share.
Summary
- Option exercise/conversion: acquired 18,417 Common Stock at $11.89 ($218,978) on August 7, 2026; holds 39,501 after (Direct).
- Open-market sale: disposed of 18,417 Common Stock at $110.89 ($2,042,261) on August 7, 2026; holds 21,084 after (Direct).
- Option exercise/conversion: disposed of 18,417 Stock Option (right to buy) on August 7, 2026 (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $2,042,261 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
Robert Chess — Director
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-08-07 | Option exercise/conversion | Common Stock | 18,417 | $12 | $219.0K | 39,501 |
| 2026-08-07 | Open-market sale | Common Stock | 18,417 | $111 | $2.0M | 21,084 |
| 2026-08-07 | Option exercise/conversion | Stock Option (right to buy) | 18,417 | — | — | 0 |
Key Dates
| Date | Description |
|---|---|
| 2026-08-07 | Option exercise/conversion (18,417 shares) |
| 2026-08-07 | Open-market sale (18,417 shares) |
| 2026-08-07 | Option exercise/conversion (18,417 shares) |
Keywords
insider transaction, Form 4, TWST, Twist Bioscience Corp, bearish, Robert Chess
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