X0508 4 2024-11-04 0001581280 Twist Bioscience Corp TWST 0001753672 Green Paula C/O TWIST BIOSCIENCE CORPORATION 681 GATEWAY BLVD. SOUTH SAN FRANCISCO CA 94080 false true false false SVP of Human Resources 0 Common Stock 2024-11-04 4 A false 30000 0 A 114585 D Common Stock 2024-11-04 4 A false 7485 0 A 122070 D Common Stock 2024-11-04 4 S false 1057 41.564 D 121013 D Represents performance stock units for which target criteria was determined to have been met on November 4, 2024. 60% of the PSUs remain subject to time-based vesting and will vest on October 1,2025, subject to continued service or acceleration of vesting as provided in the award agreement. Represents the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of Restricted Stock Units. These sales are mandated by the Issuer's election under its equity incentive plans to require the satisfaction of a tax withholding obligation to be funded by a "sell to cover" transaction and do not represent discretionary trades by the Reporting Person. /s/ Dennis Cho, as Attorney-in-Fact for Paula Green 2024-11-06