Twist Bioscience insider files to sell 688 shares

Twist Bioscience insider files a proposed sale of common stock.

Rhea-AI Filing Summary

Twist Bioscience insider files a proposed sale of common stock. The filing lists 688 shares proposed for sale with Fidelity Brokerage Services LLC as broker and an execution date noted as 05/21/2026. The filing also discloses four prior open-market dispositions by Robert F. Werner totaling 6,064 shares across 02/23/2026, 03/06/2026, 05/04/2026, and 05/08/2026.

Insights

Securities Compliance Analyst

Form 144 lists a proposed disposition of 688 shares and prior dispositions totaling 6,064 shares.

The filing shows a proposed sale of 688 shares with Fidelity Brokerage Services LLC named as the broker and a transaction date around 05/21/2026. It also itemizes prior sales by Robert F. Werner: 1,693, 246, 164, and 4,961 shares on the listed dates.

These entries are routine reporting of insider dispositions under resale/affiliate rules. Cash‑flow treatment and whether the listed 688 shares are directly linked to the prior dispositions are not specified in the excerpt; subsequent filings or trade confirmations would show execution details.

Key Figures

Proposed shares to sell: 688 shares Prior dispositions - 02/23/2026: 1,693 shares Prior dispositions - 03/06/2026: 246 shares +3 more

6 metrics

Proposed shares to sell 688 shares listed with broker Fidelity and date <date>05/21/2026</date>

Prior dispositions - 02/23/2026 1,693 shares <date>02/23/2026</date> sale by Robert F. Werner

Prior dispositions - 03/06/2026 246 shares <date>03/06/2026</date> sale by Robert F. Werner

Prior dispositions - 05/04/2026 164 shares <date>05/04/2026</date> sale by Robert F. Werner

Prior dispositions - 05/08/2026 4,961 shares <date>05/08/2026</date> sale by Robert F. Werner

Total prior dispositions (sum) 6,064 shares Aggregate of the four listed prior sales

Key Terms

Form 144, Restricted Stock Vesting, Securities To Be Sold

3 terms

Form 144 regulatory

"Filing header and context lines referencing proposed sale notification"

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.

Restricted Stock Vesting financial

"Line linking 688 shares to compensation origin on 05/20/2026"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

Securities To Be Sold regulatory

"Section label describing the broker, shares and date for the proposed disposition"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the TWST Form 144 disclose about proposed sales?

The Form 144 discloses a proposed sale of 688 shares with Fidelity Brokerage Services LLC named as broker and a date of 05/21/2026. It lists the broker and the number of shares the reporting person indicated for disposition.

Who is the reporting person named in the TWST excerpt?

The excerpt identifies Robert F. Werner as the reporting person for prior sales and lists Fidelity Brokerage Services LLC as the broker for the proposed sale. Names and broker details appear in the filing lines provided.

How many shares did Robert F. Werner sell in the past three months per the filing?

The filing lists four past dispositions totaling 6,064 shares: 1,693, 246, 164, and 4,961 on the dates provided. Each sale line shows share counts and dollar values.

Does the Form 144 indicate proceeds or prices for the proposed sale?

The excerpt includes numeric values adjacent to broker and sale rows but does not label a per‑share price explicitly for the proposed 688 shares. The past dispositions show dollar amounts alongside shares, but price per share is not separately stated.

Is the proposed sale tied to vesting or compensation in the TWST filing?

One line in the excerpt references Restricted Stock Vesting and lists 688 shares with an effective date of 05/20/2026, indicating the shares' origin is compensation‑related in the disclosed line.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/21/2026 - 03:54 PM EDT Learn about SEC filing dates

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	0001590947
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Twist Bioscience Corp
SEC File Number	001-38720
Address of Issuer	681 GATEWAY BLVD. SOUTH SAN FRANCISCO CALIFORNIA 94080
Phone	800-719-0671
Name of Person for Whose Account the Securities are To Be Sold	WERNER ROBERT F.
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	Officer

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	688	36640.54	62271314	05/21/2026	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	05/20/2026	Restricted Stock Vesting	Issuer			688	05/20/2026	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
Robert F. Werner 681 Gateway Blvd South San Francisco CA 94080	Common	02/23/2026	1693	79079.70
Robert F. Werner 681 Gateway Blvd South San Francisco CA 94080	Common	03/06/2026	246	11420.85
Robert F. Werner 681 Gateway Blvd South San Francisco CA 94080	Common	05/04/2026	164	9372.40
Robert F. Werner 681 Gateway Blvd South San Francisco CA 94080	Common	05/08/2026	4961	282186.64

144: Remarks and Signature

Remarks	Sale includes an amount necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution.
Date of Notice	05/21/2026
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	/s/ Emily Navaro, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Robert F. Werner.
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)