Paula Green - 15 Jun 2026 Form 4 Insider Report for Twist Bioscience Corp (TWST)

Reporting relationship: SVP of Human Resources
Issuer ticker: TWST
Reported as of: 15 Jun 2026
Net transaction value: -$2,134,488
SEC form: 4
Accepted by SEC: 17 Jun 2026, 16:05:32 UTC
Prior SEC filing: 10 Jun 2026
Next SEC filing: 24 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Judy Yan, as Attorney-in-Fact for Paula Green

Key filing fact

Paula Green filed Form 4 for Twist Bioscience Corp (TWST) on 17 Jun 2026.

Key facts

This page summarizes Paula Green's Form 4 filing for Twist Bioscience Corp (TWST).
4 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 17 Jun 2026, 16:05.

Change

Previous filing in this sequence was filed on 10 Jun 2026.
Current net transaction value: -$2,134,488.

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 0001753672 Primary reporting owner

Green Paula

Relationship: SVP of Human Resources
Address: C/O TWIST BIOSCIENCE CORPORATION, 681 GATEWAY BLVD., SOUTH SAN FRANCISCO
Signature: /s/ Judy Yan, as Attorney-in-Fact for Paula Green
Signature date: 17 Jun 2026

Reported non-derivative transactions

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

TWST transaction

Common Stock

Options Exercise

Transaction value
Shares: +26,137
Change %: +22%
Price: $23.33^*
Shares after: 146,842
Date: 15 Jun 2026
Ownership: Direct

TWST transaction

Common Stock

Sale

Transaction value: $1,967,856
Shares: -24,109
Change %: -16%
Price: $81.62
Shares after: 122,733
Date: 15 Jun 2026
Ownership: Direct
Footnotes: F1

TWST transaction

Common Stock

Sale

Transaction value: $166,632
Shares: -2,028
Change %: -1.7%
Price: $82.17
Shares after: 120,705
Date: 15 Jun 2026
Ownership: Direct
Footnotes: F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

TWST transaction Derivative

Employee Stock Option (right to buy)

Options Exercise

Transaction value
Shares: -26,137
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 15 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 26,137
Exercise price: $23.33
Footnotes: F3

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

Represents the weighted average sales price per share. The shares sold at prices ranging from $81.06 to $81.995 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange Commission, the Issuer, or a security holder of the Issuer.

Footnote F2

Represents the weighted average sales price per share. The shares sold at prices ranging from $82.10 to $82.18 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange Commission, the Issuer, or a security holder of the Issuer.

Footnote F3

25% of the shares subject to the option vested on October 24, 2020, and 1/48th of the shares subject to the option vest on each monthly anniversary thereafter, subject to the Reporting Person's continuous service through each vesting date.