Twist Bioscience officer may sell $1.84M in stock

Twist Bioscience Corp (TWST) received a notice of proposed sale of restricted common stock for the account of Dennis H. Cho, who is listed as an officer.

Rhea-AI Filing Summary

Twist Bioscience Corp (TWST) received a notice of proposed sale of restricted common stock for the account of Dennis H. Cho, who is listed as an officer. The notice covers up to 14,205 shares of common stock to be sold through Fidelity Brokerage Services LLC, with an indicated aggregate market value of $1,843,098.75. Twist Bioscience had 62,707,424 shares of common stock outstanding as of August 19, 2026. The notice also lists previously vested restricted stock awards and several common stock sales by Cho over the prior three months.

Key Figures

Shares proposed to be sold: 14,205 shares Aggregate market value of proposed sale: $1,843,098.75 Shares outstanding: 62,707,424 shares +4 more

7 metrics

Shares proposed to be sold 14,205 shares Common stock covered by the notice of proposed sale through Fidelity Brokerage Services LLC

Aggregate market value of proposed sale $1,843,098.75 Indicated market value for 14,205 shares of common stock

Shares outstanding 62,707,424 shares Twist Bioscience common stock outstanding as of August 19, 2026

Restricted stock vesting 10/01/2025 11,910 shares Restricted Stock Vesting from issuer categorized as Compensation

Restricted stock vesting 10/29/2025 2,295 shares Restricted Stock Vesting from issuer categorized as Compensation

Sale on 05/29/2026 14,205 shares for $990,798.75 Common stock sale by Dennis H. Cho listed in past 3 months

Sale on 08/05/2026 14,205 shares for $1,558,998.75 Common stock sale by Dennis H. Cho listed in past 3 months

Key Terms

restricted stock, Restricted Stock Vesting, attorney-in-fact, aggregate market value

4 terms

restricted stock financial

"Common | 10/01/2025 | Restricted Stock Vesting | Issuer"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Restricted Stock Vesting financial

"Common | 10/01/2025 | 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.

attorney-in-fact regulatory

"as attorney-in-fact for Dennis Cho"

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

aggregate market value financial

"| 14205 | 1843098.75 | 62707424 | 08/19/2026 |"

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 about Dennis H. Cho’s planned stock sales?

The notice states that officer Dennis H. Cho may sell up to 14,205 shares of Twist Bioscience common stock through Fidelity Brokerage Services LLC, with an indicated aggregate market value of $1,843,098.75 based on the market price at the time referenced.

How many Twist Bioscience (TWST) shares are outstanding according to this Form 144?

The filing reports that Twist Bioscience had 62,707,424 shares of common stock outstanding as of August 19, 2026. This figure provides context for the relative size of the proposed 14,205-share sale by Dennis H. Cho.

What prior sales by Dennis H. Cho in TWST stock are listed in the last three months?

The filing lists several sales, including 14,205 shares for $990,798.75 on May 29, 2026 and another 14,205 shares for $1,558,998.75 on August 5, 2026, along with additional smaller trades between May and August 2026.

Which broker is handling the proposed TWST stock sale for Dennis H. Cho?

The proposed sale of up to 14,205 shares of Twist Bioscience common stock is to be handled by Fidelity Brokerage Services LLC, located in Smithfield, Rhode Island, as indicated in the securities information section of the notice.

What restricted stock vesting events related to TWST are disclosed for Dennis H. Cho?

The notice lists restricted stock vesting from the issuer totaling 11,910 shares on October 1, 2025 and 2,295 shares on October 29, 2025, both categorized as Compensation in the securities-to-be-sold section.

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

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Accepted by SEC EDGAR 08/19/2026 - 02:25 PM EDT 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	0001883451
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	Cho Dennis
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	14205	1843098.75	62707424	08/19/2026	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	10/01/2025	Restricted Stock Vesting	Issuer			11910	10/01/2025	Compensation
Common	10/29/2025	Restricted Stock Vesting	Issuer			2295	10/29/2025	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
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	05/21/2026	1642	87447.34
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	05/29/2026	14205	990798.75
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	06/08/2026	402	28077.37
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	06/22/2026	346	30213.55
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	06/24/2026	14205	1274898.75
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	08/03/2026	1070	91293.68
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	08/05/2026	14205	1558998.75

144: Remarks and Signature

Remarks
Date of Notice	08/19/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	02/17/2026
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/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Dennis Cho
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)