Twist Bioscience insider files to sell 124 vested shares on 10/02/2025

Rhea-AI Filing Summary

Form 144 notice for Twist Bioscience Corp (TWST) shows an officer or insider, Dennis H. Cho, proposing to sell 124 common shares on 10/02/2025. Those 124 shares were acquired the prior day, 10/01/2025, by restricted stock vesting as compensation. The filing lists the broker as Fidelity Brokerage Services LLC and indicates an aggregate market value of $3,615.95 for the shares to be sold. The issuer has 60,360,925 shares outstanding per the form. The filing also discloses six prior open-market sales by Dennis H. Cho from 07/02/2025 through 09/22/2025, totaling 2,027 shares and gross proceeds of $54,048.04 across those transactions. The filer certifies no undisclosed material adverse information.

Positive

• Full disclosure of acquisition method (restricted stock vesting) and sale dates
• Broker identified (Fidelity Brokerage Services LLC) and aggregate market value provided
• Prior sales listed with dates and gross proceeds totaling $54,048.04

Negative

• Insider selling shares (2,027 shares sold in the past three months plus 124 proposed sale)
• Proposed sale of newly vested shares on 10/02/2025 may increase free float

Insights

Corporate Governance Analyst

Insider sold newly vested shares and previously sold 2,027 shares this quarter.

The filing documents a small planned sale of 124 shares arising from restricted stock vesting on 10/01/2025, to be executed through Fidelity on 10/02/2025. The insider previously sold 2,027 shares between 07/02/2025 and 09/22/2025 for total gross proceeds of $54,048.04, which is fully disclosed in the form.

This is a routine disclosure under Rule 144 and the signer attests there is no undisclosed material adverse information.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	124	3615.95	60360925	10/02/2025	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			124	10/01/2025	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	07/02/2025	125	4524.14
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	08/04/2025	785	22265.82
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	08/21/2025	521	13527.35
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	09/08/2025	269	6929.41
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	09/15/2025	94	2380.86
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	09/22/2025	233	6421.46

144: Remarks and Signature

Remarks

Date of Notice

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the TWST Form 144 disclose about the proposed sale?

The filing discloses a proposed sale of 124 common shares on 10/02/2025 through Fidelity Brokerage Services LLC, with an aggregate market value of $3,615.95.

How were the 124 shares acquired by the seller?

The 124 shares were acquired on 10/01/2025 by restricted stock vesting and the payment nature is listed as compensation.

Who is the selling person named in the Form 144?

The Form 144 identifies Dennis H. Cho as the person who sold shares in prior transactions and is associated with the current notice.

What prior sales by the insider are disclosed in the filing?

Six prior sales by Dennis H. Cho between 07/02/2025 and 09/22/2025 totaling 2,027 shares for gross proceeds of $54,048.04 are listed.

How many shares outstanding does the filing report for TWST?

The filing lists 60,360,925 shares outstanding.