TWST insider plans sale of 5,101 shares

TWST insider Emily M. Leproust filed to sell up to 5,101 shares of common stock through Fidelity Brokerage Services on NASDAQ, with an aggregate market value of $435,223.44, around August 3, 2026.

Rhea-AI Filing Summary

TWST insider Emily M. Leproust filed to sell up to 5,101 shares of common stock through Fidelity Brokerage Services on NASDAQ, with an aggregate market value of $435,223.44, around August 3, 2026. The shares derive from restricted stock vesting on July 31, 2026 as compensation. The filing notes 62,271,314 shares outstanding. It also lists recent sales in May–June 2026, including 24,282 shares for $1,580,245.85 on May 26, 25,017 shares for $1,633,407.46 on May 27, and 18,880 shares for $1,793,600.00 on June 25.

Key Figures

Planned shares to be sold: 5,101 shares Aggregate market value of planned sale: $435,223.44 Shares outstanding: 62,271,314 shares +4 more

7 metrics

Planned shares to be sold 5,101 shares Common stock planned for sale around August 3, 2026

Aggregate market value of planned sale $435,223.44 Value of 5,101 common shares to be sold

Shares outstanding 62,271,314 shares Common shares outstanding referenced in the Form 144

Prior sale on May 26, 2026 24,282 shares; $1,580,245.85 Common stock sold by Emily M. Leproust on 05/26/2026

Prior sale on May 27, 2026 25,017 shares; $1,633,407.46 Common stock sold by Emily M. Leproust on 05/27/2026

Prior sale on June 25, 2026 18,880 shares; $1,793,600.00 Common stock sold by Emily M. Leproust on 06/25/2026

Prior sale on May 4, 2026 5,127 shares; $293,001.90 Common stock sold by Emily M. Leproust on 05/04/2026

Key Terms

Form 144, Restricted Stock Vesting, Compensation, aggregate market value

4 terms

Form 144 regulatory

"Filer Information | | | 144: Filer Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Restricted Stock Vesting financial

"Common | 07/31/2026 | 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.

Compensation financial

"5101 | 07/31/2026 | Compensation"

aggregate market value financial

"5101 | 435223.44 | 62271314 | 08/03/2026 | NASDAQ"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

FAQ

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

What does the Form 144 filing for TWST disclose?

The Form 144 for TWST discloses that insider Emily M. Leproust plans to sell 5,101 common shares, valued at $435,223.44, on NASDAQ, arising from restricted stock vesting as of July 31, 2026.

How many TWST shares does the insider plan to sell under this Form 144?

The filing states a planned sale of 5,101 shares of TWST common stock, with an aggregate market value of $435,223.44, to be executed through Fidelity Brokerage Services on or about August 3, 2026.

What is the source of the TWST shares being sold in this Form 144?

The 5,101 shares to be sold were acquired via restricted stock vesting on July 31, 2026 as compensation from the issuer, according to the Form 144 disclosure for TWST.

How many TWST shares are reported as outstanding in the Form 144?

The Form 144 reports that 62,271,314 shares of TWST common stock are outstanding. This figure provides context for the planned sale of 5,101 shares, which represents only a small fraction of total shares.

What prior TWST stock sales by Emily M. Leproust are listed in the last three months?

The filing lists several past sales, including 24,282 shares for $1,580,245.85 on May 26, 2026 and 25,017 shares for $1,633,407.46 on May 27, 2026, among other transactions in May and June 2026.

On which exchange will the TWST shares in this Form 144 be sold?

The Form 144 indicates the TWST common shares are expected to be sold on the NASDAQ, with Fidelity Brokerage Services LLC acting as the brokerage, and an approximate sale date of August 3, 2026.

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Available on EDGAR 08/03/2026 - 04:09 PM Accepted by SEC EDGAR 08/03/2026 - 04:08 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	0001753655
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	Leproust Emily M.
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
Relationship to Issuer	Director

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	5101	435223.44	62271314	08/03/2026	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	07/31/2026	Restricted Stock Vesting	Issuer			5101	07/31/2026	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
Emily M. Leproust 681 Gateway Blvd South San Francisco CA 94080	Common	05/04/2026	5127	293001.90
Emily M. Leproust 681 Gateway Blvd South San Francisco CA 94080	Common	05/21/2026	6888	366831.46
Emily M. Leproust 681 Gateway Blvd South San Francisco CA 94080	Common	05/26/2026	24282	1580245.85
Emily M. Leproust 681 Gateway Blvd South San Francisco CA 94080	Common	05/27/2026	25017	1633407.46
Emily M. Leproust 681 Gateway Blvd South San Francisco CA 94080	Common	05/28/2026	16470	1118555.11
Emily M. Leproust 681 Gateway Blvd South San Francisco CA 94080	Common	06/08/2026	2265	158197.11
Emily M. Leproust 681 Gateway Blvd South San Francisco CA 94080	Common	06/22/2026	1688	147400.21
Emily M. Leproust 681 Gateway Blvd South San Francisco CA 94080	Common	06/25/2026	18880	1793600.00

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	08/03/2026
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/ Joshua Schmitt, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Emily M. Leproust.
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)