Twist Bioscience insider notice for 3,876 vested shares on NASDAQ

Rhea-AI Filing Summary

Notice of proposed insider sale: A Form 144 was filed for common stock of Twist Bioscience Corp (TWST) showing a proposed sale of 3,876 shares with an aggregate market value of 124,756.81, listing NASDAQ as the exchange and an approximate sale date of 10/06/2025. The shares were acquired on 10/01/2025 by restricted stock vesting as compensation from the issuer.

The filing lists prior open-market disposals by the same account (Dennis H. Cho) in the past three months totaling 2,026 shares sold across six trades between 08/04/2025 and 10/02/2025, producing gross proceeds shown per trade. The filer certifies no undisclosed material adverse information and includes the standard attestation language required by Rule 144.

Positive

• Proceeds disclosed for prior trades show transparent transaction history
• Broker identified as Fidelity Brokerage Services LLC, indicating an institutional execution venue
• Shares originate from compensation (restricted stock vesting), a routine corporate equity event

Negative

• Planned sale size of 3,876 shares represents newly vested stock becoming marketable and adds supply near 10/06/2025
• Multiple recent small sales (2,026 shares across six trades) may indicate ongoing disposition by the account

Insights

Insider Transactions Analyst

TL;DR: Insider filing reports recently vested restricted shares and a planned sale of 3,876 shares valued at 124,756.81.

The transaction arises from restricted stock vesting on 10/01/2025 and is being offered for sale via a broker on NASDAQ around 10/06/2025. That pattern—vesting followed by prompt Form 144 notice—indicates a routine disposition of compensation-based equity rather than an acquisition or financing event.

Risk drivers are limited to market-price movement between vesting and sale; the filing shows prior small-volume sales totalling 2,026 shares across six trades from 08/04/2025 to 10/02/2025, which may modestly increase available supply. Monitor executed sale volume and average price realized in the days around 10/06/2025 for direct market impact.

Compliance & Reporting Specialist

TL;DR: Form 144 appears to follow Rule 144 disclosure steps by reporting acquisition, broker, and recent sales.

The filer identifies the broker as Fidelity Brokerage Services LLC and provides the required past-3-month sales history by the same account, with per-trade gross proceeds listed. The notice includes the Rule 144 representation that no undisclosed material adverse information is known to the seller.

Key compliance items to watch are whether the sales reported on Form 144 are actually executed and whether volumes match the stated outstanding share counts; any deviation would be reflected in subsequent Form 4 or amended 144 filings in the near term.

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	3876	124756.81	60360925	10/06/2025	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	10/01/2025	Restricted Stock Vesting	Issuer			3876	10/01/2025	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
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	08/04/2025	785	22265.82
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	08/21/2025	521	13527.35
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	09/08/2025	269	6929.41
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	09/15/2025	94	2380.86
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	09/22/2025	233	6421.46
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	10/02/2025	124	3615.95

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 filing for TWST report?

It reports a proposed sale of 3,876 common shares with an aggregate market value of 124,756.81, to be sold on 10/06/2025 on NASDAQ.

Why are these shares being sold according to the filing?

The shares were acquired on 10/01/2025 through restricted stock vesting and the filing lists compensation as the nature of payment.

Who is listed as the broker for the proposed sale?

The filing names Fidelity Brokerage Services LLC at the Salem, RI address as the broker handling the sale.

Has the filer sold shares recently?

Yes; the filing lists six prior sales by Dennis H. Cho totaling 2,026 shares between 08/04/2025 and 10/02/2025 with gross proceeds shown per trade.

Does the filing indicate any undisclosed material information?

By signing the notice the seller represents they do not know any material adverse information that has not been publicly disclosed.