Twist Bioscience Corp — Director's Dealing 2019

Nov 5, 2019

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Twist Bioscience Corp (TWST)
CIK: 0001581280
Period of Report: 2019-10-24

Reporting Person: Peck Bill (Chief Technology Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2019-10-24	Common Stock	A	2780	$0.00	Acquired	666112	Direct
2019-11-01	Common Stock	D	4363	$24.4286	Disposed	661749	Direct
2019-11-01	Common Stock	D	15637	$25.0985	Disposed	646112	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2019-10-24	Employee Stock Option (right to buy)	$23.33	A	11910	Acquired	2029-10-23	Common Stock (11910)	Direct

Footnotes

F1: Represents a restricted stock unit award (the "RSU Award") that vests in installments, with 25% of the shares subject to the RSU Award vesting on October 24, 2020 and 1/16th of the shares subject to the RSU Award vesting on each quarterly anniversary thereafter, subject to the Reporting Person's continuous service through each vesting date.

F2: The transactions reported on this row were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person.

F3: Represents the aggregate of sales effected on the same day at different prices.

F4: Represents the weighted average sales price per share. The shares sold at prices ranging from $23.81 to $24.805 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.

F5: Represents the weighted average sales price per share. The shares sold at prices ranging from $24.82 to $25.395 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.

F6: 25% of the shares subject to the option vest and become 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 continuing service through each vesting date.