Abiopharma

🔍 CHESS ROBERT (Executive)

Company: Twist Bioscience Corp (TWST)

Report Date: 2026-08-07

Detailed Transactions and Holdings:

• Acquired 18,417 shares of Common Stock at $11.89 per share (Direct)
  Date: 2026-08-07 | Code: M | equity_swap_involved: false | shares_owned_after: 39,501.00 | transaction_form_type: 4 | Footnotes: F1
• Sold 18,417 shares of Common Stock at $110.89 per share (Direct)
  Date: 2026-08-07 | Code: S | equity_swap_involved: false | shares_owned_after: 21,084.00 | transaction_form_type: 4 | Footnotes: F1
• Holds 0 shares of Common Stock (Direct)
  Date: 2026-08-07 | Code: H | nature_of_ownership: By the Chess 1997 Trust | shares_owned_after: 42,528.00 | Footnotes: F2
• Sold 18,417 shares of Stock Option (right to buy) at $11.89 per share (Derivative)
  Date: 2026-08-07 | Code: M | Expires: 2028-09-13 | equity_swap_involved: false | transaction_form_type: 4 | Footnotes: F1, F3

Footnotes:

• F1: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person on May 8, 2026.
• F2: The Reporting Person and his spouse are the sole trustees and the sole beneficiaries of the Chess 1997 Trust.
• F3: The option is immediately exercisable. 10% of the shares subject to the option vested on September 13, 2018, 15% of the shares subject to the option vested on March 24, 2019, and 1/48th of the shares subject to the option vested on each monthly anniversary thereafter, subject to the Reporting Person's continuous service through each vesting date.