Twist Bioscience (NASDAQ: TWST) files Form 144 to sell 104,665 shares on 04/21/2026

Rhea-AI Filing Summary

Twist Bioscience Corp submitted a Form 144 notice to sell 104,665 shares of Common Stock on 04/21/2026. The filing lists prior open-market dispositions by Emily M. Leproust totaling 16,371 shares sold on 02/03/2026, 02/23/2026, 03/06/2026, and 03/20/2026 with dollar proceeds reported for each trade.

Key Figures

Proposed sale: 104,665 shares Prior sales - Feb 3, 2026: 5,001 shares Prior sales - Feb 23, 2026: 7,205 shares +4 more

7 metrics

Proposed sale 104,665 shares 04/21/2026

Prior sales - Feb 3, 2026 5,001 shares Proceeds $232,924.08

Prior sales - Feb 23, 2026 7,205 shares Proceeds $336,544.11

Prior sales - Mar 6, 2026 2,423 shares Proceeds $112,490.68

Prior sales - Mar 20, 2026 1,742 shares Proceeds $76,275.91

Shares outstanding (context) 61,311,704 listed on filing header

Option grant date 09/29/2017 Associated with securities to be sold

Key Terms

Form 144, Option Granted, Cash

3 terms

Form 144 regulatory

"Common | Fidelity Brokerage Services LLC ... | 04/21/2026 | NASDAQ"

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.

Option Granted financial

"Common | 04/21/2026 | Option Granted - 09/29/2017"

Cash financial

"1610 | 04/21/2026 | Cash"

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	1610	104665.00	61311704	04/21/2026	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	04/21/2026	Option Granted - 09/29/2017	Issuer			1610	04/21/2026	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
Emily M. Leproust 681 Gateway Blvd South San Francisco CA 94080	Common	02/03/2026	5001	232924.08
Emily M. Leproust 681 Gateway Blvd South San Francisco CA 94080	Common	02/23/2026	7205	336544.11
Emily M. Leproust 681 Gateway Blvd South San Francisco CA 94080	Common	03/06/2026	2423	112490.68
Emily M. Leproust 681 Gateway Blvd South San Francisco CA 94080	Common	03/20/2026	1742	76275.91

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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?

The filing discloses a proposed sale of 104,665 shares on 04/21/2026. It also lists prior sales by Emily M. Leproust totaling 16,371 shares on four dates in February–March 2026 with reported cash proceeds for each trade.

Who is the selling party in the TWST Form 144?

The filing identifies Fidelity Brokerage Services LLC as the broker and references transactions by Emily M. Leproust. The notice shows brokerage and address details and lists the proposed sale date as 04/21/2026.

How many shares did Emily M. Leproust recently sell per the filing?

The filing lists four past sales by Emily M. Leproust totaling 16,371 shares. Individual sales were 5,001, 7,205, 2,423, and 1,742 on specified dates in February and March 2026 with reported proceeds.

Does the Form 144 show option or grant details for TWST?

Yes; the document notes an Option Granted with an original grant date of 09/29/2017. The entry associates the proposed sale with that option and lists the method as Cash on 04/21/2026.

Are proceeds from the past sales reported in the TWST filing?

Yes; each prior sale by Emily M. Leproust includes reported gross proceeds: $232,924.08, $336,544.11, $112,490.68, and $76,275.91 for the four transactions listed in the filing.