Twist Bioscience Corp — Director's Dealing 2020

May 22, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Twist Bioscience Corp (TWST)
CIK: 0001581280
Period of Report: 2020-05-20

Reporting Person: Leproust Emily M. (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-05-20	Common Stock	S	29045	$39.5385	Disposed	817017	Direct
2020-05-20	Common Stock	S	11311	$40.2063	Disposed	805706	Direct
2020-05-20	Common Stock	S	600	$41.07	Disposed	805106	Direct
2020-05-20	Common Stock	F	3007	$39.76	Disposed	802099	Direct
2020-05-21	Common Stock	S	500	$37.7775	Disposed	801599	Direct
2020-05-21	Common Stock	S	5700	$39.1706	Disposed	795899	Direct
2020-05-21	Common Stock	S	8238	$39.8994	Disposed	787661	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.

F2: Represents the weighted average sales price per share. The shares sold at prices ranging from $38.90 to $39.89 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.

F3: 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).

F4: Represents the weighted average sales price per share. The shares sold at prices ranging from $39.90 to $40.85 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 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).

F6: Represents the weighted average sales price per share. The shares sold at prices ranging from $37.51 to $38.11 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.

F7: Represents the weighted average sales price per share. The shares sold at prices ranging from $38.52 to $39.50 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.

F8: Represents the weighted average sales price per share. The shares sold at prices ranging from $39.52 to $40.18 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.