Twist Bioscience Corp — Director's Dealing 2021

Oct 15, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Twist Bioscience Corp (TWST)
CIK: 0001581280
Period of Report: 2021-10-13

Reporting Person: Banyai William (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-10-13	Common Stock	M	16833	$5.95	Acquired	315109	Direct
2021-10-13	Common Stock	M	11348	$8.82	Acquired	326457	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-10-13	Employee Stock Option (right to buy)	$5.95	M	16833	Acquired	2025-09-28	Common Stock (16833)	Direct
2021-10-13	Employee Stock Option (right to buy)	$8.82	M	11348	Acquired	2027-09-28	Common Stock (11348)	Direct

Footnotes

F1: 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 anniversarythereafter, subject to the Reporting Person's continuous service through each vesting date.

F2: The option is immediately exercisable. 10% of the shares subject to the option vested on September 28, 2017, 15% of the shares subject to the option vested on September 28, 2018, and1/48th 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.