Twist Bioscience Corp — Director's Dealing 2021

Feb 17, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Twist Bioscience Corp (TWST)
CIK: 0001581280
Period of Report: 2021-02-12

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-02-12	Common Stock	S	400	$164.6950	Disposed	319788	Direct
2021-02-12	Common Stock	S	100	$165.30	Disposed	319688	Direct
2021-02-12	Common Stock	S	600	$167.1948	Disposed	319088	Direct
2021-02-12	Common Stock	S	300	$167.7767	Disposed	318788	Direct
2021-02-12	Common Stock	S	100	$169.0000	Disposed	318688	Direct
2021-02-12	Common Stock	S	500	$170.6400	Disposed	318188	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Employee Stock Option (right to buy)	$8.82	2027-09-28	Common Stock (0)	230794	Direct
Employee Stock Option (right to buy)	$26.66	2028-11-18	Common Stock (0)	266539	Direct
Employee Stock Option (right to buy)	$23.33	2029-10-23	Common Stock (0)	131290	Direct
Employee Stock Option (right to buy)	$5.95	2025-09-28	Common Stock (0)	95699	Direct

Footnotes

F1: Represents the weighted average sales price per share. The shares sold at prices ranging from $164.01 to $165.00 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: Represents the weighted average sales price per share. The shares sold at prices ranging from $166.60 to $167.48 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: Represents the weighted average sales price per share. The shares sold at prices ranging from $167.62 to $167.90 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.

F4: Represents the weighted average sales price per share. The shares sold at prices ranging from $170.03 to $170.99 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: The option is immediately exercisable. 10% of the shares subject to the option vested on September 28, 2017, 15% of the shares subject to the option vested on September 28, 2018, 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.

F6: 20% of the shares subject to the option vested and became exercisable on October 31, 2019 and 1/60th of the shares subject to the option vest and become exercisable on each monthly anniversary thereafter, subject to the Reporting Person's continuous service through each vesting date.

F7: 25% of the shares subject to the option vested on October 24, 2020, 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.

F8: 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.