TWST insider filings: 2,716-share sale after restricted stock vesting

Rhea-AI Filing Summary

The Form 144 filed for TWST reports a proposed sale of 2,716 shares of common stock through Fidelity Brokerage Services on 08/21/2025 with an aggregate market value of $70,518.77. The shares were acquired on 08/20/2025 via restricted stock vesting from the issuer and payment is noted as compensation. The filing also lists five sales by Emily M. Leproust in the past three months totaling 12,711 shares with combined gross proceeds of $398,886.65 on dates from 05/21/2025 through 08/04/2025. The notice includes the standard signature representation about absence of undisclosed material adverse information.

Insights

Securities Analyst

TL;DR: Notice documents a small proposed sale following restricted stock vesting and multiple recent disposals by the same seller.

The filing shows a proposed sale of 2,716 shares acquired one day earlier by restricted stock vesting and designated as compensation. The seller, Emily M. Leproust, completed five prior sales in the preceding three months totaling 12,711 shares and roughly $398,887 in gross proceeds. Relative to the reported outstanding share count of 60,360,925, these transactions represent a de minimis percentage of outstanding stock. From a market-impact perspective the sizes are small; the filing primarily serves regulatory disclosure of intended insider sales under Rule 144.

Compliance Officer

TL;DR: Form 144 furnishes required disclosure for proposed Rule 144 sales tied to recently vested restricted stock.

The document provides required particulars: broker, share counts, acquisition date and nature (restricted stock vesting), and prior sales in the three‑month lookback. It includes the signer’s representation about lack of undisclosed material adverse information. The filing appears to meet the informational elements expected for a Rule 144 notice; no regulatory deficiencies are stated within the text provided.

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	2716	70518.77	60360925	08/21/2025	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	08/20/2025	Restricted Stock Vesting	Issuer			2716	08/20/2025	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	05/21/2025	2802	83352.21
Emily M. Leproust 681 Gateway Blvd South San Francisco CA 94080	Common	06/06/2025	2170	68896.63
Emily M. Leproust 681 Gateway Blvd South San Francisco CA 94080	Common	06/20/2025	1678	59996.39
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

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 propose to sell?

The notice proposes to sell 2,716 shares of TWST common stock through Fidelity on 08/21/2025 with an aggregate market value of $70,518.77.

How were the shares being sold on Form 144 acquired?

The shares were acquired on 08/20/2025 via restricted stock vesting from the issuer, and the payment nature is listed as compensation.

Who sold shares of TWST in the past three months and how many?

Emily M. Leproust sold 12,711 shares during the past three months on five dates (05/21/2025, 06/06/2025, 06/20/2025, 07/02/2025, 08/04/2025) for combined gross proceeds of $398,886.65.

Through which broker is the proposed sale to occur?

The proposed sale is to occur through Fidelity Brokerage Services LLC, with the filing listing an address at 900 Salem Street, Smithfield, RI.

What outstanding share count is reported in the filing?

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