ROBERT CHESS - 13 Feb 2026 Form 4 Insider Report for Twist Bioscience Corp (TWST)

Role
Director
Signature
/s/ Kendra Fox, as Attorney-in-Fact for Robert Chess
Issuer symbol
TWST
Transactions as of
13 Feb 2026
Net transactions value
-$105,402
Form type
4
Filing time
18 Feb 2026, 16:05:06 UTC
Previous filing
09 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
CHESS ROBERT Director C/O TWIST BIOSCIENCE CORPORATION, 681 GATEWAY BLVD., SOUTH SAN FRANCISCO /s/ Kendra Fox, as Attorney-in-Fact for Robert Chess 18 Feb 2026 0001227886

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction TWST Common Stock Sale $105,402 -2,184 -9.4% $48.26 21,084 13 Feb 2026 Direct F1
holding TWST Common Stock 42,528 13 Feb 2026 By the Chess 1997 Trust F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

ROBERT CHESS is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.

Explanation of Responses:

Id Content
F1 Represents the number of shares sold by the Reporting Person to cover tax liability in connection with the vesting of Restricted Stock Units. This "sell to cover" transaction was made pursuant to a prior election by the Reporting Person and does not represent a discretionary trade by the Reporting Person.
F2 The Reporting Person and his spouse are the sole trustees and the sole beneficiaries of the Chess 1997 Trust.