Twist Bioscience Corp — Director's Dealing 2021

Jun 25, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Twist Bioscience Corp (TWST)
CIK: 0001581280
Period of Report: 2021-06-23

Reporting Person: Weiss Patrick (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-06-23	Common Stock	M	2104	$8.82	Acquired	53080	Direct
2021-06-23	Common Stock	M	1974	$26.66	Acquired	55054	Direct
2021-06-23	Common Stock	M	827	$25.02	Acquired	55881	Direct
2021-06-23	Common Stock	S	4905	$118.34	Disposed	50976	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-06-23	Employee Stock Option (right to buy)	$8.82	M	2104	Disposed	2027-09-28	Common Stock (2104)	Direct
2021-06-23	Employee Stock Option (right to buy)	$26.66	M	1974	Disposed	2028-11-18	Common Stock (1974)	Direct
2021-06-23	Employee Stock Option (right to buy)	$25.02	M	827	Disposed	2029-12-09	Common Stock (827)	Direct

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 December 15, 2020.

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, 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.

F3: 20% of the shares subject to the option vested and became exercisable on October 31, 2019 and 1/60th of the shares subject to the option vest and become exercisable on each monthly anniversary thereafter, subject to the Reporting Person's continuous service through each vesting date.

F4: 25% of the shares subject to the option vested and became exercisable on October 24, 2020 and 1/48th of the shares subject to the option vest and become exercisable on each monthly anniversary thereafter, subject to the Reporting Person's continuous service through each vesting date.