Emily Leproust sells multiple TWST shares (NASDAQ: TWST)

Rhea-AI Filing Summary

Twist Bioscience (issuer) reported insider dispositions by Emily M. Leproust of Common stock on multiple dates. Transactions listed: 5,001 shares on 02/03/2026, 7,205 shares on 02/23/2026, 2,423 shares on 03/06/2026, 1,742 shares on 03/20/2026, and 1,610 shares on 04/21/2026. The filing also shows 8,061 shares described under "Securities To Be Sold" with an option grant date of 09/29/2017.

Key Figures

Sale on 02/03/2026: 5,001 shares Sale on 02/23/2026: 7,205 shares Sale on 03/06/2026: 2,423 shares +3 more

6 metrics

Sale on 02/03/2026 5,001 shares Disposition by Emily M. Leproust

Sale on 02/23/2026 7,205 shares Disposition by Emily M. Leproust

Sale on 03/06/2026 2,423 shares Disposition by Emily M. Leproust

Sale on 03/20/2026 1,742 shares Disposition by Emily M. Leproust

Sale on 04/21/2026 1,610 shares Disposition by Emily M. Leproust

Securities to be sold entry 8,061 shares Listed 04/22/2026 with option grant date 09/29/2017

Key Terms

Form 144, Securities To Be Sold, Disposition for cash, Option Granted

4 terms

Form 144 regulatory

"Filer Information | 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.

Securities To Be Sold regulatory

"Common | 04/22/2026 | Option Granted - 09/29/2017"

Disposition for cash financial

"04/22/2026 | Cash"

Option Granted financial

"Option Granted - 09/29/2017"

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	8061	526289.75	61311704	04/22/2026	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	04/22/2026	Option Granted - 09/29/2017	Issuer			8061	04/22/2026	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
Emily M. Leproust 681 Gateway Blvd South San Francisco CA 94080	Common	04/21/2026	1610	104664.97

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 did the Form 144 for TWST disclose?

It discloses multiple insider sales by Emily M. Leproust. The filing lists five open‑market dispositions dated 02/03/2026, 02/23/2026, 03/06/2026, 03/20/2026, and 04/21/2026 with the share counts and cash amounts shown per sale.

How many shares did Emily M. Leproust sell in each transaction?

Individual sales were 5,001; 7,205; 2,423; 1,742; and 1,610 shares. Each sale is paired with a cash amount in the filing for the corresponding trade date as listed in the record.

What is the 8,061‑share entry shown in the filing?

The filing shows 8,061 shares under "Securities To Be Sold" dated 04/22/2026. That line references an option granted on 09/29/2017 and lists the method as cash; the entry appears separate from the earlier sales rows.

Does the Form 144 state who received the cash from the sales?

The filing lists the transactions as dispositions by the reporting person. The rows show cash proceeds per sale; the filing does not allocate proceeds beyond the seller entries shown in the excerpt.

Are these transactions reported as open‑market sales or another method?

The sales in the excerpt are shown with cash amounts, indicating dispositions for cash. The "Securities To Be Sold" line references an option and cash; specific distribution methods beyond that wording are not detailed in the excerpt.