Kevin B. Yankton - Aug 5, 2021 Form 3 Insider Report for Twist Bioscience Corp (TWST)

Role: Chief Accounting Officer
Signature: /s/ William Solis, Attorney-in-Fact for Kevin B. Yankton
Stock symbol: TWST
Transactions as of: Aug 5, 2021
Transactions value $: $0
Form type: 3
Date filed: 8/9/2021, 06:55 PM
Next filing: Nov 30, 2021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	TWST	Common Stock						1.6K	Aug 5, 2021	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	TWST	Employee Stock Option (right to buy)							Aug 5, 2021	Common Stock	2.55K	$117.59	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents a restricted stock unit award ("RSU") of which 25% of the total number of RSUs vest on the first anniversary of May 17, 2021 and 1/16th of the total number of RSUs vest on each quarterly anniversary thereafter, for a total vesting period of 48 months, subject to the Reporting Person's continuous service through each vesting date.
F2	25% of the shares subject to the option vest and become exercisable on the one (1) year anniversary of May 17, 2021 and 1/48 of the shares subject to the option vest and become exercisable monthly thereafter, subject to the Reporting Person's continuous service through each vesting date.