Twist Bioscience (TWST) Form 144 Discloses 1,704-Share Sale from Vesting

Rhea-AI Filing Summary

Twist Bioscience (TWST) Form 144 summary: A notice was filed for a proposed sale of 1,704 shares of common stock through Fidelity Brokerage Services on NASDAQ, with an aggregate market value of $46,962.07 and an approximate sale date of 09/22/2025. The filing states these shares were acquired on 09/22/2025 as restricted stock vesting and the payment type is listed as compensation. The issuer's number of shares outstanding is reported as 60,360,925.

The filing also discloses four prior sales by Emily M. Leproust during the past three months totaling 11,042 shares for aggregate gross proceeds of $304,506.36. The notice includes the standard attestation that the seller is not aware of undisclosed material adverse information about the issuer.

Positive

• Planned sale is fully disclosed with broker, quantity, value, and expected date
• Securities were acquired via restricted stock vesting, indicating compensation-related origin rather than an open-market purchase

Negative

• Insider has recently sold 11,042 shares in the past three months for aggregate gross proceeds of $304,506.36
• Proposed additional sale of 1,704 shares is scheduled, increasing insider-issued shares entering the market

Insights

Corporate Governance Expert

TL;DR: Routine insider sale tied to compensation vesting; disclosure aligns with Rule 144 requirements and provides transparency.

The filing indicates the proposed sale arises from restricted stock vesting, which is a common mechanism for executive compensation. The filer attests no material nonpublic information exists, and transactions are routed through a broker (Fidelity). The disclosure of multiple recent sales by the same individual over the past three months offers investors visibility into insider liquidity, but the amounts disclosed do not on their face indicate extraordinary disposition relative to public float.

Securities Analyst

TL;DR: Insider sold shares recently and plans an additional small sale; transactions are quantified and consistent with compensation-related activity.

The document shows explicit quantities, dates, and gross proceeds for recent sales and the planned sale. The 1,704-share proposed sale is recorded with an aggregate market value of $46,962.07 and is slated for 09/22/2025. Recent dispositions by the same person totaled 11,042 shares for $304,506.36. These data points are useful for tracking insider selling trends, but the filing contains no operational or financial performance details about the issuer itself.

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

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	1704	46962.07	60360925	09/22/2025	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	09/22/2025	Restricted Stock Vesting	Issuer			1704	09/22/2025	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
Emily M. Leproust 681 Gateway Blvd South San Francisco CA 94080	Common	07/02/2025	476	17227.92
Emily M. Leproust 681 Gateway Blvd South San Francisco CA 94080	Common	08/04/2025	5585	158413.50
Emily M. Leproust 681 Gateway Blvd South San Francisco CA 94080	Common	08/21/2025	2716	70518.77
Emily M. Leproust 681 Gateway Blvd South San Francisco CA 94080	Common	09/08/2025	2265	58346.17

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 planned sale?

It discloses a proposed sale of 1,704 common shares through Fidelity on NASDAQ with an aggregate market value of $46,962.07 and an approximate sale date of 09/22/2025.

How were the 1,704 shares acquired according to the filing?

The filing states the shares were acquired on 09/22/2025 by restricted stock vesting and the nature of payment is listed as compensation.

Who sold shares in the past three months and how much did they raise?

The filing shows Emily M. Leproust sold a total of 11,042 shares on 07/02/2025, 08/04/2025, 08/21/2025, and 09/08/2025 for aggregate gross proceeds of $304,506.36.

How many shares outstanding does the filing report for the issuer?

The filing reports 60,360,925 shares outstanding for the issuer.

Does the filer assert possession of material nonpublic information?

By signing the notice, the filer represents they do not know any material adverse information about the issuer that has not been publicly disclosed.