Dennis H. Cho plans Rule 144 sale of TWST shares (NASDAQ: TWST)

Rhea-AI Filing Summary

Twist Bioscience insider plans to sell common stock under Rule 144. Dennis H. Cho filed a notice to sell 1,099 common shares through Fidelity Brokerage Services on NASDAQ around 02/03/2026, with an aggregate market value of $51,186.47. The issuer has 61,311,704 common shares outstanding.

The 1,099 shares to be sold were acquired on 02/02/2026 via restricted stock vesting from the issuer as compensation. Over the past three months, Cho has sold additional common shares: 1,019 shares for $32,688.91 on 11/03/2025, 757 shares for $20,063.15 on 11/21/2025, 398 shares for $13,085.28 on 12/08/2025, and 324 shares for $11,196.14 on 12/22/2025.

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	1099	51186.47	61311704	02/03/2026	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	02/02/2026	Restricted Stock Vesting	Issuer			1099	02/02/2026	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
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	11/03/2025	1019	32688.91
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	11/21/2025	757	20063.15
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	12/08/2025	398	13085.28
Dennis H. Cho 681 Gateway Blvd South San Francisco CA 94080	Common	12/22/2025	324	11196.14

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 disclose?

The Form 144 discloses that Dennis H. Cho intends to sell 1,099 Twist Bioscience common shares on NASDAQ. These shares were acquired through restricted stock vesting and follow several sales in late 2025 that together generated tens of thousands of dollars in proceeds.

How many TWST shares is Dennis H. Cho planning to sell?

Dennis H. Cho plans to sell 1,099 common shares of Twist Bioscience under Rule 144. The filing lists an aggregate market value of $51,186.47 for this planned sale, with the transaction to be executed through Fidelity Brokerage Services on NASDAQ around February 3, 2026.

How were the TWST shares in the Form 144 acquired?

The 1,099 Twist Bioscience shares in the Form 144 were acquired on February 2, 2026 via restricted stock vesting. The filing describes the nature of payment as compensation from the issuer, indicating they were granted as part of an equity compensation arrangement rather than bought for cash.

What prior TWST stock sales has Dennis H. Cho reported in the last 3 months?

Over the prior three months, Dennis H. Cho sold multiple Twist Bioscience common share blocks: 1,019 shares for $32,688.91, 757 shares for $20,063.15, 398 shares for $13,085.28, and 324 shares for $11,196.14, with sale dates in November and December 2025.

How many Twist Bioscience shares are outstanding compared to this Form 144 sale?

The filing reports 61,311,704 Twist Bioscience common shares outstanding. The planned Rule 144 sale by Dennis H. Cho covers 1,099 shares, a very small fraction of the reported outstanding share count, providing context for the scale of the intended transaction.

Which broker and exchange are involved in the TWST Form 144 sale?

The planned sale of 1,099 Twist Bioscience shares will be executed through Fidelity Brokerage Services LLC. The filing specifies that the common stock will be sold on the NASDAQ exchange, aligning the transaction with standard market trading for the company’s listed shares.