Twist Bioscience Corp — Director's Dealing 2020

Dec 14, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Twist Bioscience Corp (TWST)
CIK: 0001581280
Period of Report: 2020-12-10

Reporting Person: Weiss Patrick (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-12-10	Common Stock	M	131	$5.95	Acquired	54481	Direct
2020-12-10	Common Stock	S	131	$138.62	Disposed	54350	Direct
2020-12-10	Common Stock	M	3419	$8.82	Acquired	57769	Direct
2020-12-10	Common Stock	S	3419	$138.62	Disposed	54350	Direct
2020-12-11	Common Stock	M	135	$5.95	Acquired	54485	Direct
2020-12-11	Common Stock	S	135	$151.13	Disposed	54350	Direct
2020-12-11	Common Stock	M	3423	$8.82	Acquired	57773	Direct
2020-12-11	Common Stock	S	3423	$151.13	Disposed	54350	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-12-10	Employee Stock Option (right to buy)	$5.95	M	131	Disposed	2025-09-28	Common Stock (131)	Direct
2020-12-10	Employee Stock Option (right to buy)	$8.82	M	3419	Disposed	2027-09-28	Common Stock (3419)	Direct
2020-12-11	Employee Stock Option (right to buy)	$5.95	M	135	Disposed	2025-09-28	Common Stock (135)	Direct
2020-12-11	Employee Stock Option (right to buy)	$8.82	M	3423	Disposed	2027-09-28	Common Stock (3423)	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 June 9, 2020.

F2: 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.

F3: 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.