SEC Form 4 reporting owner

Werner Robert F.

Werner Robert F. has filed 19 Form 4 transactions reported between November 21, 2025 and September 8, 2026, as Chief Accounting Officer of Twist Bioscience Corp.

Name as filed: WERNER ROBERT F.

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$1.2M

17 lines

Companies

with Form 4 filings

Latest transaction

Sep 8, 2026

transaction date

Roles and reported holdings

TWSTTwist Bioscience Corp
Nov 21, 2025 – Sep 8, 2026
Chief Accounting Officer
Held directly44,399 sh as of Sep 8, 2026 · Form 4
24 months: $1.2M sold

Transaction history

All 19 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Sep 8, 2026	TWSTChief Accounting Officer	Open-market saleCode S · direct	238	$122.62	$29K@ $122.62	44,399	Form 4
Aug 24, 2026	TWSTChief Accounting Officer	Open-market saleCode S · direct	854	$140.77	$120K@ $140.77	44,637	Form 4
Aug 21, 2026	TWSTChief Accounting Officer	Open-market saleCode S · direct	669	$139.07	$93K@ $139.07	45,491	Form 4
Aug 3, 2026	TWSTChief Accounting Officer	Open-market saleCode S · direct	167	$85.32	$14K@ $85.32	46,160	Form 4
Jun 8, 2026	TWSTChief Accounting Officer	GiftCode G · direct	500	—	—	46,327	Form 4
Jun 8, 2026	TWSTChief Accounting Officer	Open-market saleCode S · direct	1,127	$69.07	$78K@ $69.07	46,827	Form 4
Jun 8, 2026	TWSTChief Accounting Officer	Open-market saleCode S · direct	232	$69.84	$16K@ $69.84	47,954	Form 4
May 26, 2026	TWSTChief Accounting Officer	Open-market saleCode S · direct	800	$62.48	$50K@ $62.48	48,186	Form 4
May 21, 2026	TWSTChief Accounting Officer	Open-market saleCode S · direct	688	$53.26	$37K@ $53.26	48,986	Form 4
May 8, 2026	TWSTChief Accounting Officer	Open-market saleCode S · direct	4,961	$56.88	$282K@ $56.88	49,674	Form 4
May 4, 2026	TWSTChief Accounting Officer	Open-market saleCode S · direct	164	$57.15	$9K@ $57.15	54,635	Form 4
Mar 6, 2026	TWSTChief Accounting Officer	Open-market saleCode S · direct	246	$46.43	$11K@ $46.43	54,799	Form 4
Feb 23, 2026	TWSTChief Accounting Officer	Open-market saleCode S · direct	1,693	$46.71	$79K@ $46.71	55,045	Form 4
Feb 9, 2026	TWSTChief Accounting Officer	GiftCode G · direct	2,000	—	—	56,738	Form 4
Feb 4, 2026	TWSTChief Accounting Officer	Open-market saleCode S · direct	7,000	$45.65	$320K@ $45.65	58,738	Form 4
Feb 3, 2026	TWSTChief Accounting Officer	Open-market saleCode S · direct	175	$46.58	$8K@ $46.58	65,738	Form 4
Dec 8, 2025	TWSTChief Accounting Officer	Open-market saleCode S · direct	230	$32.88	$8K@ $32.88	65,913	Form 4
Nov 24, 2025	TWSTChief Accounting Officer	Open-market saleCode S · direct	822	$28.71	$24K@ $28.71	66,143	Form 4
Nov 21, 2025	TWSTChief Accounting Officer	Open-market saleCode S · direct	229	$26.50	$6K@ $26.50	66,965	Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.