Twist Bioscience SVP sells shares to cover taxes

Twist Bioscience Corp senior vice president of human resources Paula Green reported a small sale of common stock tied to taxes on vested Restricted Stock Units.

Rhea-AI Filing Summary

Twist Bioscience Corp senior vice president of human resources Paula Green reported a small sale of common stock tied to taxes on vested Restricted Stock Units. She sold 297 shares at an average price of $43.7864 per share through a mandated “sell to cover” transaction under the company’s equity incentive plans. After this tax-related sale, she directly holds 124,104 shares of Twist Bioscience common stock. The footnote explains that the transaction was required to satisfy tax withholding obligations and did not reflect a discretionary trading decision by the executive.

Insider Trade Summary

Net Seller: 297 shares

Net Sell 1 txn

Insider Green Paula

Role SVP of Human Resources

Sold 297 shs ($13K)

Type	Security	Shares	Price	Value
Sale	Common Stock	297	$43.7864	$13K

Holdings After Transaction: Common Stock — 124,104 shares (Direct)

Footnotes (1)

1. F1. Represents the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of Restricted Stock Units. These sales are mandated by the Issuer's election under its equity incentive plans to require the satisfaction of a tax withholding obligation to be funded by a "sell to cover" transaction and do not represent discretionary trades by the Reporting Person.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Twist Bioscience (TWST) report for Paula Green?

Twist Bioscience reported that SVP of Human Resources Paula Green sold 297 common shares at $43.7864 each. The sale was a mandated “sell to cover” transaction to fund tax withholding on vested Restricted Stock Units, not a discretionary trade.

Why did Paula Green sell Twist Bioscience (TWST) shares in this Form 4?

The shares were sold to cover tax withholding obligations on the vesting of Restricted Stock Units. Under Twist Bioscience’s equity incentive plans, these “sell to cover” transactions are required and do not represent a voluntary trading decision by the executive.

How many Twist Bioscience (TWST) shares did Paula Green sell and at what price?

Paula Green sold 297 shares of Twist Bioscience common stock at an average price of $43.7864 per share. This small transaction was executed solely to satisfy tax withholding on recently vested Restricted Stock Units under the company’s equity plans.

How many Twist Bioscience (TWST) shares does Paula Green hold after this transaction?

Following the tax-related sale, Paula Green directly holds 124,104 shares of Twist Bioscience common stock. The reported transaction covered only 297 shares, indicating it was a minor adjustment to her overall equity position with the company.

Does Paula Green’s Twist Bioscience (TWST) share sale signal a change in sentiment?

The filing states the sale was mandated to cover tax withholding on RSU vesting, not a discretionary trade. Such “sell to cover” transactions are typically administrative and do not necessarily indicate any change in the executive’s outlook on the company.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/24/2026 - 04:05 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Green Paula

(Last) (First) (Middle)

C/O TWIST BIOSCIENCE CORPORATION

681 GATEWAY BLVD.

(Street)

SOUTH SAN FRANCISCO CALIFORNIA 94080

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Twist Bioscience Corp [ TWST ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP of Human Resources

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/20/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/20/2026		S		297(1)	D	$43.7864	124,104	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of Restricted Stock Units. These sales are mandated by the Issuer's election under its equity incentive plans to require the satisfaction of a tax withholding obligation to be funded by a "sell to cover" transaction and do not represent discretionary trades by the Reporting Person.

Remarks:

	/s/ Kendra Fox, as Attorney-in-Fact for Paula Green	03/24/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)