TWST director files Form 144 to sell 1,642 shares

Dennis H. Cho reported a proposed resale of 1,642 shares of Common Stock on Form 144.

Rhea-AI Filing Summary

Dennis H. Cho reported a proposed resale of 1,642 shares of Common Stock on Form 144. The filing lists prior dispositions in the past three months: 844 shares on 02/23/2026 ($39,423.07), 425 shares on 03/06/2026 ($19,731.14), 354 shares on 03/20/2026 ($15,500.39), and 1,962 shares on 05/04/2026 ($112,125.95).

Key Figures

Proposed resale: 1,642 shares Sale on 02/23/2026: 844 shares Sale on 03/06/2026: 425 shares +2 more

5 metrics

Proposed resale 1,642 shares listed under Securities To Be Sold, <date>05/20/2026</date>

Sale on 02/23/2026 844 shares proceeds <money>$39,423.07</money>

Sale on 03/06/2026 425 shares proceeds <money>$19,731.14</money>

Sale on 03/20/2026 354 shares proceeds <money>$15,500.39</money>

Sale on 05/04/2026 1,962 shares proceeds <money>$112,125.95</money>

Key Terms

Form 144, Restricted Stock Vesting, Securities To Be Sold

3 terms

Form 144 regulatory

"reported a proposed resale of 1,642 shares on Form 144"

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

"Securities To Be Sold | 05/20/2026 | Restricted Stock Vesting"

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.

Securities To Be Sold regulatory

"Securities To Be Sold | Common | 05/20/2026 | 1642"

FAQ

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

What does the Form 144 filed for TWST report?

It reports a proposed resale of 1,642 shares by Dennis H. Cho. The filing also lists four prior dispositions totaling 3,585 shares across dates in 2026 with gross proceeds shown for each sale.

How many shares did Dennis H. Cho sell in the past three months?

The filing lists four dispositions totaling 3,585 shares in the past three months. Sales occurred on 02/23/2026, 03/06/2026, 03/20/2026, and 05/04/2026.

What proceeds are shown for the recent sales in the Form 144?

Proceeds shown include $39,423.07 for 02/23/2026, $19,731.14 for 03/06/2026, $15,500.39 for 03/20/2026, and $112,125.95 for 05/04/2026.

Does the filing show how the 1,642 shares were acquired?

Yes. The excerpt lists the 1,642 shares under Restricted Stock Vesting with an effective date of 05/20/2026, indicating compensation-related issuance as shown in the filing.

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

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Accepted by SEC EDGAR 05/21/2026 - 04:26 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	1642	87447.34	62271314	05/21/2026	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	05/20/2026	Restricted Stock Vesting	Issuer			1642	05/20/2026	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
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	02/23/2026	844	39423.07
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	03/06/2026	425	19731.14
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	03/20/2026	354	15500.39
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	05/04/2026	1962	112125.95

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	05/21/2026
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/ Joshua Schmitt, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Dennis H. Cho.
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)