TWST Form 144: 2,517 Shares from Restricted Vesting, Sale ~10/09/2025

Rhea-AI Filing Summary

Twist Bioscience Corp reported a notice of proposed sale under Rule 144 for 2,517 common shares held at Fidelity Brokerage Services LLC with an aggregate market value of $82,864.17. The filing shows these shares were acquired on 10/08/2025 through restricted stock vesting and were received as compensation. The sale is scheduled to occur approximately on 10/09/2025 on NASDAQ. The filer also disclosed sales by Adam Laponis during the past three months totaling 12,242 shares for gross proceeds of $399,803.08, with individual sale dates of 07/09/2025, 08/21/2025, 10/06/2025, and 10/08/2025. Total shares outstanding are listed as 60,360,925. The notice includes the standard signer representation that no undisclosed material adverse information is known.

Positive

• Securities were acquired via restricted stock vesting on 10/08/2025, indicating alignment with compensation rather than third-party purchase
• Brokerage execution through Fidelity and listing on NASDAQ provide standard, transparent market channels for the proposed sale

Negative

• Insider sold $399,803.08 of stock over the past three months (12,242 shares), showing recent insider liquidity
• Planned near-term sale on 10/09/2025 immediately after vesting could increase near-term selling pressure from this account

Insights

Insider Transactions Analyst

Insider exercised restricted stock and plans a small follow-up sale near-term.

The filing shows 2,517 shares that vested on 10/08/2025 are proposed for sale about one day later on 10/09/2025, executed through Fidelity Brokerage Services LLC on NASDAQ. This is disclosed as compensation-origin stock, indicating the shares arose from a company compensation program rather than an open-market purchase.

This filer also sold 12,242 shares in the prior three months for total proceeds of $399,803.08, a factual record of recent insider liquidity. Watch the approximate sale date 10/09/2025 as the immediate monitorable event and any subsequent filings that disclose additional insider dispositions or a trading plan adoption date.

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	2517	82864.17	60360925	10/09/2025	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	10/08/2025	Restricted Stock Vesting	Issuer			2517	10/08/2025	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
Adam Laponis 681 Gateway Blvd South San Francisco CA 94080	Common	07/09/2025	2449	93419.31
Adam Laponis 681 Gateway Blvd South San Francisco CA 94080	Common	08/21/2025	918	23835.14
Adam Laponis 681 Gateway Blvd South San Francisco CA 94080	Common	10/06/2025	5875	189098.63
Adam Laponis 681 Gateway Blvd South San Francisco CA 94080	Common	10/08/2025	3000	93450.00

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 the Form 144 for Twist Bioscience (TWST) disclose?

It discloses a proposed sale of 2,517 common shares with aggregate market value $82,864.17, acquired by restricted stock vesting on 10/08/2025 and proposed to be sold on 10/09/2025 on NASDAQ.

Who is the filer or seller named in the Form 144 for TWST?

The filing lists transactions involving Adam Laponis, including prior sales and the current notice of proposed sale executed through Fidelity Brokerage Services LLC.

How many shares were sold by the insider in the past three months?

The filer sold a total of 12,242 shares in the past three months for gross proceeds of $399,803.08, across dates 07/09/2025, 08/21/2025, 10/06/2025, and 10/08/2025.

How were the to-be-sold shares acquired?

The 2,517 shares were acquired on 10/08/2025 through restricted stock vesting and the consideration is listed as compensation.

Where will the proposed sale be executed?

The proposed sale is expected to be executed on NASDAQ through Fidelity Brokerage Services LLC (900 Salem Street, Smithfield, RI).