TWST (NASDAQ) insider to sell 26,137 shares via option exercise on 06/15/2026

Rhea-AI Filing Summary

TWST proposes sale of 26,137 shares of Common Stock via stock option exercise. The filing states the sale date as 06/15/2026 and lists Fidelity Brokerage Services LLC as the broker-dealer. The filing also lists recent dispositions by Paula Green totaling 3,696 shares on 03/20/2026, 05/04/2026, 05/21/2026, and 06/08/2026 with cash amounts shown for each sale.

Insights

Securities Compliance Analyst

Notice lists a planned stock-option exercise sale of 26,137 shares on 06/15/2026 and recent insider dispositions.

The filing records a stock option exercise as the method for the 26,137-share sale and names Fidelity Brokerage Services LLC as the executing broker. The entry specifies the sale method as "Cash."

Recent sales by Paula Green are listed with dates, share counts (297; 1,116; 1,399; 884) and per-sale cash proceeds. Timing and cash-treatment for the upcoming sale are explicit in the excerpt.

Key Figures

Planned sale: 26,137 shares Recent sale - 03/20/2026: 297 shares Recent sale - 05/04/2026: 1,116 shares +2 more

5 metrics

Planned sale 26,137 shares stock option exercise on 06/15/2026

Recent sale - 03/20/2026 297 shares Paula Green disposition, proceeds $13,004.56

Recent sale - 05/04/2026 1,116 shares Paula Green disposition, proceeds $63,778.06

Recent sale - 05/21/2026 1,399 shares Paula Green disposition, proceeds $74,505.99

Recent sale - 06/08/2026 884 shares Paula Green disposition, proceeds $61,742.27

Key Terms

Stock Option Exercise, Form 144, Fidelity Brokerage Services LLC

3 terms

Stock Option Exercise financial

"Securities To Be Sold row: "Stock Option Exercise""

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

Form 144 regulatory

"Content header: "144: Filer Information""

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.

Fidelity Brokerage Services LLC financial

"Securities Information: "Fidelity Brokerage Services LLC 900 Salem Street""

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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	26137	2134487.07	62271314	06/15/2026	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	06/15/2026	Stock Option Exercise	Issuer			26137	06/15/2026	Cash

* 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
Paula Green 681 Gateway Blvd South San Francisco CA 94080	Common	03/20/2026	297	13004.56
Paula Green 681 Gateway Blvd South San Francisco CA 94080	Common	05/04/2026	1116	63778.06
Paula Green 681 Gateway Blvd South San Francisco CA 94080	Common	05/21/2026	1399	74505.99
Paula Green 681 Gateway Blvd South San Francisco CA 94080	Common	06/08/2026	884	61742.27

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 disclose about the upcoming sale?

The filing discloses a proposed sale of 26,137 shares of Common Stock via a stock option exercise on 06/15/2026. It lists Fidelity Brokerage Services LLC as the broker and specifies cash as the sale method.

Who sold shares recently according to the filing for TWST?

The filing shows recent dispositions by Paula Green: 297, 1,116, 1,399, and 884 shares on 03/20/2026, 05/04/2026, 05/21/2026, and 06/08/2026, respectively, with cash amounts shown for each sale.

What broker-dealer is handling the proposed TWST sale?

The excerpt names Fidelity Brokerage Services LLC at 900 Salem Street, Smithfield, RI as the broker-dealer associated with the transactions. The broker is listed in the securities and execution rows of the filing.

How many shares did Paula Green sell in total in the three months shown?

The filing lists four dispositions by Paula Green totaling 3,696 shares (297 + 1,116 + 1,399 + 884) across dates in March, May, and June 2026, with cash proceeds recorded for each transaction.