X0306 4 2022-06-15 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 Common Stock 2022-06-15 4 M false 2531 5.95 A 24794 D Common Stock 2022-06-15 4 S false 10067 30.4682 D 14727 D Employee Stock Option (right to buy) 5.95 2022-06-15 4 M false 2531 0 D 2026-03-21 Common Stock 2531 8514 D Represents the weighted average sales price per share. The shares sold at prices ranging from $30.395 to $30.686 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange Commission, the Issuer, or a security holder of the Issuer. The option is immediately exercisable. 25% of the shares subject to the option vested on September 1, 2016 and 1/48th of the shares subject to the option vest on each monthly anniversary thereafter, subject to the Reporting Person's continuous service through each vesting date. /s/ William Solis, as Attorney-in-Fact for Paula Green 2022-06-17