TWST (NASDAQ: TWST) files Rule 144 for 354 shares; insider sales detailed

Rhea-AI Filing Summary

TWST submitted a Rule 144 notice reporting the proposed resale of 354 shares of Common Stock tied to 03/19/2026 restricted stock vesting.

The excerpt also lists recent open-market sales by Dennis H. Cho during the prior three months: 324 shares on 12/22/2025, 1,099 shares on 02/03/2026, 5,000 shares on 02/11/2026, 844 shares on 02/23/2026, and 425 shares on 03/06/2026, with proceeds shown alongside each trade in the excerpt.

Insights

Equity Compliance Analyst

Rule 144 notice for 354 shares; multiple recent disposals by an insider are disclosed.

The filing lists a proposed resale of 354 Common shares tied to restricted stock vesting on 03/19/2026. The disclosure follows standard Rule 144 procedure to report intended resale of restricted securities.

Recent transfers by Dennis H. Cho are shown with trade dates and gross proceeds: 324 (12/22/2025), 1,099 (02/03/2026), 5,000 (02/11/2026), 844 (02/23/2026), and 425 (03/06/2026). Subsequent filings or broker confirmations would clarify settlement and any withholding; timing and cash‑flow treatment are set by transactional records.

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	354	15500.39	61311704	03/20/2026	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	03/19/2026	Restricted Stock Vesting	Issuer			354	03/19/2026	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	12/22/2025	324	11196.14
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	02/03/2026	1099	51186.47
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	02/11/2026	5000	249650.00
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

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 TWST's Form 144 report?

It reports a proposed resale of 354 restricted shares on 03/19/2026. The notice identifies the shares as vested restricted stock and lists recent insider sales and the dates and proceeds for each trade in the excerpt.

Who is the insider named in the filing for TWST?

The filing names Dennis H. Cho as the reporting party for recent sales. The excerpt shows multiple dispositions by Mr. Cho with trade dates and per-trade proceeds across December 2025 to March 2026.

Do the listed sales in the Form 144 indicate completed transactions?

The excerpt shows sales executed on specific dates with proceeds, indicating transactions took place. Settlement and any tax-withholding details are not expanded in the excerpt and would appear in transaction confirmations or subsequent filings.

How many shares does TWST intend to resell under this Rule 144 notice?

The notice identifies 354 shares of Common Stock tied to restricted stock vesting on 03/19/2026. That figure is presented on the securities-to-be-sold line in the provided excerpt.

Where can I find more details about the trade proceeds and dates?

The excerpt lists per-trade proceeds alongside each sale by Dennis H. Cho. For full transaction records and settlement confirmation, refer to broker reports or follow-up SEC filings that include settlement details.