Twist Bioscience (TWST) SVP sells 1,194 shares in tax sell-to-cover

Rhea-AI Filing Summary

Twist Bioscience Corporation reported that SVP of Human Resources Paula Green sold 1,194 shares of common stock on February 3, 2026 at $46.576 per share. After this transaction, she directly holds 165,445 shares.

The sale was a mandatory “sell to cover” transaction to satisfy tax withholding owed on vesting restricted stock units, under the company’s equity incentive plan, and was not a discretionary trade by the executive.

Insider Trade Summary

Net Seller: 1,194 shares ($55,612)

Net Sell 1 txn

Insider Green Paula

Role SVP of Human Resources

Sold 1,194 shs ($56K)

Type	Security	Shares	Price	Value
Sale	Common Stock	1,194	$46.576	$56K

Holdings After Transaction: Common Stock — 165,445 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)
02/03/2026

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	02/03/2026		S		1,194(1)	D	$46.576	165,445	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	02/05/2026
	** 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 TWST executive Paula Green report?

Paula Green, SVP of Human Resources at Twist Bioscience, reported selling 1,194 shares of common stock. The sale occurred on February 3, 2026 at a price of $46.576 per share, in connection with tax obligations from vesting restricted stock units.

Why did Paula Green sell 1,194 Twist Bioscience (TWST) shares?

The 1,194 shares were sold to cover tax withholding obligations triggered by the vesting of restricted stock units. Twist Bioscience’s equity plans mandate a “sell to cover” approach for these taxes, so the transaction was mechanical rather than a discretionary stock sale.

At what price were Paula Green’s TWST shares sold on February 3, 2026?

The reported 1,194 Twist Bioscience shares were sold at a price of $46.576 per share. This price is disclosed in the Form 4 transaction table, which records the details of the tax-related “sell to cover” sale linked to vesting restricted stock units.

How many Twist Bioscience shares does Paula Green own after this sale?

Following the February 3, 2026 transaction, Paula Green directly owns 165,445 Twist Bioscience common shares. This post-transaction holding figure is reported in the Form 4 and reflects her remaining stake after the 1,194-share tax-withholding sale.

Was Paula Green’s February 2026 TWST share sale discretionary trading?

No. The footnote explains the sale was mandated to cover tax withholding on vesting restricted stock units. Under Twist Bioscience’s equity incentive plans, such obligations are satisfied via automatic “sell to cover” transactions rather than discretionary trading decisions by the executive.

What role does Paula Green hold at Twist Bioscience (TWST)?

Paula Green is identified as the Senior Vice President of Human Resources at Twist Bioscience. She is an officer but not a director or 10% owner, according to the Form 4, which lists her corporate title and relationship to the issuer.