Twist Bioscience Corp — Director's Dealing 2021

Feb 11, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Twist Bioscience Corp (TWST)
CIK: 0001581280
Period of Report: 2021-02-09

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-01-20	Common Stock	G	75000	$207.97	Disposed	320188	Direct
2021-01-20	Common Stock	G	75000	—	Acquired	75000	Indirect
2021-02-09	Common Stock	S	41256	$175.2855	Disposed	33744	Indirect
2021-02-09	Common Stock	S	6540	$176.4697	Disposed	27204	Indirect
2021-02-09	Common Stock	S	12589	$177.4773	Disposed	14615	Indirect
2021-02-09	Common Stock	S	7020	$178.5442	Disposed	7595	Indirect
2021-02-09	Common Stock	S	5089	$179.5529	Disposed	2506	Indirect
2021-02-09	Common Stock	S	2406	$180.6181	Disposed	100	Indirect
2021-02-09	Common Stock	S	100	$181.09	Disposed	0	Indirect

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: This transaction involved a gift of securities by the Reporting Person to her spouse.

F2: Change in form of ownership of shares previously reported as beneficially owned by the reporting person.

F3: The Reporting Person disclaims beneficial ownership of such shares.

F4: Represents the weighted average sales price per share. The shares sold at prices ranging from $175.00 to $175.98 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 $176.03 to $177.03 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: Represents the weighted average sales price per share. The shares sold at prices ranging from $177.04 to $178.04 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 $178.05 to $179.03 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 $179.06 to $180.00 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.

F9: Represents the weighted average sales price per share. The shares sold at prices ranging from $180.08 to $181.06 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.

F10: 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.

F11: 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.

F12: 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.

F13: 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.