Twist Bioscience Corp — Director's Dealing 2021

Jan 26, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Twist Bioscience Corp (TWST)
CIK: 0001581280
Period of Report: 2021-01-22

Reporting Person: Daniels Mark (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-01-22	Common Stock	F	149	$190.64	Disposed	68485	Direct
2021-01-25	Common Stock	S	285	$193.00	Disposed	68200	Direct
2021-01-25	Common Stock	M	620	$23.33	Acquired	68820	Direct
2021-01-25	Common Stock	S	620	$193.00	Disposed	68200	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-01-25	Employee Stock Option (right to buy)	$23.33	M	620	Disposed	2029-10-23	Common Stock (620)	Direct

Footnotes

F1: Represents shares withheld by the Issuer to satisfy the Reporting Person's tax withholding obligation in connection with the vesting of certain Restricted Stock Units ("RSUs") previously granted to the Reporting Person. Such withholding is exempt from Section 16(b) pursuant to Rule 16b-3(e).

F2: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person on September 15, 2020.

F3: 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 exerisable on each monthly anniversary thereafter, subject to the Reporting Person's continuous service through each vesting date.