WERNER ROBERT F.
Chief Accounting Officer
WERNER ROBERT F. has filed 19 SEC Form 4 filings (24 transaction rows) across 1 company, with disclosures dating back to 2025. 19 of those filings fall inside the rolling window. Most recent filing: Aug 25, 2026.
On the most recent filing, WERNER ROBERT F. is listed as Chief Accounting Officer at Twist Bioscience Corp. Inside the rolling window, WERNER ROBERT F. reported no open-market purchases and 19 open-market sales totaling $1.3M in TWST. The largest disclosed transaction in the window is a sale of 7,000 TWST shares on Feb 4, 2026, worth $320K.
Companies traded
Other insiders at TWST
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$1.3M
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| TWST | Chief Accounting Officer | Sale | 669 | $93K | Aug 25 | SEC ↗ | |
| TWST | Chief Accounting Officer | Sale | 854 | $120K | Aug 25 | SEC ↗ | |
| TWST | Chief Accounting Officer | Sale | 167 | $14K | Aug 5 | SEC ↗ | |
| TWST | Chief Accounting Officer | Sale | 1,359 | $94K | Jun 10 | SEC ↗ | |
| TWST | Chief Accounting Officer | Sale | 800 | $50K | May 28 | SEC ↗ | |
| TWST | Chief Accounting Officer | Sale | 688 | $37K | May 26 | SEC ↗ | |
| TWST | Chief Accounting Officer | Sale | 4,961 | $282K | May 12 | SEC ↗ | |
| TWST | Chief Accounting Officer | Sale | 164 | $9K | May 6 | SEC ↗ | |
| TWST | Chief Accounting Officer | Sale | 246 | $11K | Mar 10 | SEC ↗ | |
| TWST | Chief Accounting Officer | Sale | 1,693 | $79K | Feb 25 | SEC ↗ | |
| TWST | Chief Accounting Officer | Sale | 175 | $8K | Feb 5 | SEC ↗ | |
| TWST | Chief Accounting Officer | Sale | 7,000 | $320K | Feb 5 | SEC ↗ | |
| TWST | Chief Accounting Officer | Sale | 230 | $8K | Dec 10 | SEC ↗ | |
| TWST | Chief Accounting Officer | Sale | 229 | $6K | Nov 25 | SEC ↗ | |
| TWST | Chief Accounting Officer | Sale | 822 | $24K | Nov 25 | SEC ↗ | |
| TWST | Chief Accounting Officer | Sale | 160 | $5K | Nov 5 | SEC ↗ | |
| TWST | Chief Accounting Officer | Sale | 1,016 | $32K | Nov 3 | SEC ↗ | |
| TWST | Chief Accounting Officer | Sale | 2,041 | $66K | Oct 8 | SEC ↗ | |
| TWST | Chief Accounting Officer | Sale | 235 | $6K | Sep 10 | SEC ↗ |
Frequently asked questions
How many SEC Form 4 filings has WERNER ROBERT F. made?
WERNER ROBERT F. has filed 19 SEC Form 4 filings (24 transaction rows) across 1 company since 2025.
Which companies does WERNER ROBERT F. trade?
WERNER ROBERT F. has filed SEC Form 4 disclosures for 1 company, including TWST.
When was WERNER ROBERT F.'s most recent SEC Form 4 filing?
WERNER ROBERT F.'s most recent SEC Form 4 filing on Tracefour is dated Aug 25, 2026.
What is WERNER ROBERT F.'s job title?
On the most recent SEC Form 4 filings tracked by Tracefour, WERNER ROBERT F. is listed as Chief Accounting Officer.
What is WERNER ROBERT F.'s total buy and sell value in the current window?
Inside the rolling retention window, WERNER ROBERT F. bought $0 and sold $1.3M based on SEC Form 4 filings.
What was WERNER ROBERT F.'s largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 7,000 TWST shares on 2026-02-04, worth $320K, per SEC Form 4 filings.