Paula Green - Sep 16, 2022 Form 4 Insider Report for Twist Bioscience Corp (TWST)

Role: SVP of Human Resources
Signature: /s/ Alyssa Zhang, as Attorney-in-Fact for Paula Green
Stock symbol: TWST
Transactions as of: Sep 16, 2022
Transactions value $: -$268,022
Form type: 4
Date filed: 9/20/2022, 04:30 PM
Previous filing: Aug 23, 2022
Next filing: Oct 4, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TWST	Common Stock	Options Exercise	$50.7K	+8.51K	+60.4%	$5.95	22.6K	Sep 16, 2022	Direct
transaction	TWST	Common Stock	Sale	-$319K	-8.51K	-37.49%	$37.43	14.2K	Sep 16, 2022	Direct	F1, F2

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
transaction	TWST	Employee Stock Option (right to buy)	Options Exercise	$0	-8.51K	-100%	$0.00^*	0	Sep 16, 2022	Common Stock	8.51K	$5.95	Direct	F3

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

Explanation of Responses:

Id	Content
F1	Represents the weighted average sales price per share. The shares sold at prices ranging from $37.41 to $37.47 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.
F2	Includes shares that were acquired under the Issuer's Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).
F3	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.