Twist Bioscience (TWST) SVP auto-sells 935 shares to cover RSU taxes

Rhea-AI Filing Summary

Twist Bioscience Corp senior vice president of human resources Paula Green reported an automatic sale of company stock to cover taxes from vesting equity. On March 6, 2026, she sold 935 shares of common stock at $46.426 per share under a mandatory “sell to cover” arrangement. After this tax-related sale, she directly holds 124,401 shares of Twist Bioscience common stock.

Insider Trade Summary

Net Seller: 935 shares ($43,408)

Net Sell 1 txn

Insider Green Paula

Role SVP of Human Resources

Sold 935 shs ($43K)

Type	Security	Shares	Price	Value
Sale	Common Stock	935	$46.426	$43K

Holdings After Transaction: Common Stock — 124,401 shares (Direct)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

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 CA 94080

(City) (State) (Zip)

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

3. Date of Earliest Transaction (Month/Day/Year)
03/06/2026

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

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

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

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	03/06/2026		S		935(1)	D	$46.426	124,401	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	03/10/2026
	** 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.

FAQ

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

Twist Bioscience reported that SVP of Human Resources Paula Green sold 935 shares of common stock. The sale was an automatic “sell to cover” transaction to satisfy tax withholding obligations related to vesting restricted stock units, rather than a discretionary open-market trade.

At what price did Paula Green’s Twist Bioscience (TWST) shares sell?

Paula Green’s 935 Twist Bioscience common shares sold at $46.426 per share. This price reflects the execution level for the mandated “sell to cover” tax transaction associated with the vesting of her restricted stock units under the company’s equity incentive plans.

How many Twist Bioscience (TWST) shares does Paula Green hold after the sale?

Following the reported transaction, Paula Green holds 124,401 shares of Twist Bioscience common stock directly. This post-transaction balance shows she retains a substantial equity position after the relatively small, tax-driven sale required to cover withholding on vested restricted stock units.

Why were Paula Green’s Twist Bioscience (TWST) shares sold in this Form 4 filing?

The shares were sold solely to cover tax withholding obligations from vesting restricted stock units. Twist Bioscience’s equity plans require funding these taxes through a mandatory “sell to cover” transaction, meaning the sale was not a discretionary investment decision by Paula Green.

Was Paula Green’s Twist Bioscience (TWST) stock sale discretionary?

No. The filing states the sale was mandated under Twist Bioscience’s equity incentive plans as a “sell to cover” for tax withholding. It specifically notes these transactions do not represent discretionary trades by Paula Green, distinguishing them from voluntary open-market sales.