Robert P. Ragusa - 05 Feb 2026 Form 4 Insider Report for Twist Bioscience Corp (TWST)

Reporting relationship: Director
Issuer ticker: TWST
Reported as of: 05 Feb 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 09 Feb 2026, 16:28:59 UTC
Prior SEC filing: 05 Dec 2025
Next SEC filing: 03 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Kendra Fox, as Attorney-in-Fact for Robert Ragusa

Key filing fact

Robert P. Ragusa filed Form 4 for Twist Bioscience Corp (TWST) on 09 Feb 2026.

Key facts

This page summarizes Robert P. Ragusa's Form 4 filing for Twist Bioscience Corp (TWST).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 09 Feb 2026, 16:28.

Change

Previous filing in this sequence was filed on 05 Dec 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001222644 Primary reporting owner

RAGUSA ROBERT P

Relationship: Director
Address: C/O TWIST BIOSCIENCE CORPORATION, 681 GATEWAY BLVD., SOUTH SAN FRANCISCO
Signature: /s/ Kendra Fox, as Attorney-in-Fact for Robert Ragusa
Signature date: 09 Feb 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

TWST transaction

Common Stock

Award

Transaction value: $0
Shares: +5,095
Change %: +21%
Price: $0.000000
Shares after: 28,983
Date: 05 Feb 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

100% of the Shares subject to the Annual Equity Award will vest upon the earlier of (i) the one-year anniversary of the date of grant and (ii) the date of the first annual meeting of stockholders following the date of grant, provided that the Non-Employee Director is a Service Provider on each vesting date.