Twist Bioscience officer plans $48.7K share sale

Officer Paula Green filed a Rule 144 notice to sell a small block of Twist Bioscience common shares, partly to cover tax obligations from vested equity awards.

Rhea-AI Filing Summary

Twist Bioscience Corp (TWST) received a notice under Rule 144 for proposed sales of its common stock by officer Paula Green. The current notice covers 294 shares to be sold through Fidelity Brokerage Services, with an aggregate market value of $48,654.47, and references 62,707,424 shares of common stock outstanding. The filing notes that the sale includes shares to cover a tax obligation from the settlement of a vested equity award.

Key Figures

Shares in current Rule 144 notice: 294 shares Aggregate market value of current notice shares: $48,654.47 Shares outstanding: 62,707,424 shares +4 more

7 metrics

Shares in current Rule 144 notice 294 shares Common stock to be sold by Paula Green under the new notice

Aggregate market value of current notice shares $48,654.47 Value of the 294 shares covered by the new notice

Shares outstanding 62,707,424 shares Common stock outstanding referenced in the notice

Shares sold on August 3, 2026 1,133 shares Common stock sold by Paula Green during past 3 months

Proceeds on August 3, 2026 $96,668.92 Aggregate sale proceeds for 1,133 shares

Shares sold on August 21, 2026 1,360 shares Common stock sold by Paula Green during past 3 months

Proceeds on August 21, 2026 $189,130.30 Aggregate sale proceeds for 1,360 shares

Key Terms

Rule 144, Restricted Stock Vesting, vested equity award distribution

3 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Vesting financial

"Common | 09/18/2026 | Restricted Stock Vesting | Issuer"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

vested equity award distribution financial

"resulting from the settlement of a vested equity award distribution."

FAQ

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

What does the Form 144 filing disclose for Twist Bioscience (TWST)?

The filing discloses that officer Paula Green has filed a Rule 144 notice to sell 294 shares of Twist Bioscience common stock through Fidelity Brokerage Services, with an aggregate market value of $48,654.47, including shares to cover a tax obligation from a vested equity award.

How many Twist Bioscience (TWST) shares are covered by the current Rule 144 notice?

The current Rule 144 notice covers 294 shares of Twist Bioscience common stock. These shares are associated with restricted stock vesting and include an amount necessary to cover a tax obligation arising from the settlement of a vested equity award distribution.

What past 3‑month share sales are reported for Paula Green in TWST?

Over the past three months, Paula Green reported sales of Twist Bioscience common stock of 1,133 shares on August 3, 2026, 1,360 shares on August 21, 2026, 907 shares on September 8, 2026, and 291 shares on June 22, 2026, with stated aggregate proceeds for each date.

What is the stated market value of the Twist Bioscience (TWST) shares in the new notice?

The 294 Twist Bioscience common shares in the new Rule 144 notice have an aggregate market value of $48,654.47 as reported. This figure reflects the value used for purposes of the notice at the time of filing.

How many Twist Bioscience (TWST) shares are reported outstanding in the Rule 144 notice?

The Rule 144 notice reports that Twist Bioscience has 62,707,424 shares of common stock outstanding. This figure is provided as part of the securities information section and serves as a baseline share count in the notice.

Why does the Rule 144 filing mention tax obligations for TWST shares?

The filing states that the sale includes an amount necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution, indicating that part of the shares to be sold relate to tax coverage on compensation in the form of equity.

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

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Available on EDGAR 09/21/2026 - 04:54 PM Accepted by SEC EDGAR 09/21/2026 - 04:53 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001753672
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Twist Bioscience Corp
SEC File Number	001-38720
Address of Issuer	681 GATEWAY BLVD. SOUTH SAN FRANCISCO CALIFORNIA 94080
Phone	800-719-0671
Name of Person for Whose Account the Securities are To Be Sold	Green Paula
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	294	48654.47	62707424	09/21/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	09/18/2026	Restricted Stock Vesting	Issuer			294	09/18/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Paula Green 681 Gateway Blvd South San Francisco CA 94080	Common	08/03/2026	1133	96668.92
Paula Green 681 Gateway Blvd South San Francisco CA 94080	Common	08/21/2026	1360	189130.30
Paula Green 681 Gateway Blvd South San Francisco CA 94080	Common	09/08/2026	907	111219.88
Paula Green 681 Gateway Blvd South San Francisco CA 94080	Common	06/22/2026	291	25410.82

144: Remarks and Signature

Remarks	Sale includes an amount necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution.
Date of Notice	09/21/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Jennifer Ruchti, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Paula Green
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)