Updated Jul 16, 2026
WERNER ROBERT F. has filed 5 SEC Form 4 filings across 1 company in the last 90 days — selling. Lifetime open-market sales: $1.12M.

Robert F. Werner serves as the Chief Accounting Officer at Twist Bioscience Corp, a company specializing in synthetic biology and DNA synthesis. He has been involved in various SEC filings related to his role within the company.
| Role | Insider |
|---|---|
| Notability | 20/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-10 | TWST | Twist Bioscience Corp | G — Bona-fide gift | 500 | $0.00 | |
| 2026-06-10 | TWST | Twist Bioscience Corp | S — Open-market sale | 1.1K | $69.07 | $78K |
| 2026-06-10 | TWST | Twist Bioscience Corp | S — Open-market sale | 232 | $69.84 | $16K |
| 2026-05-28 | TWST | Twist Bioscience Corp | S — Open-market sale | 800 | $62.48 | $50K |
| 2026-05-26 | TWST | Twist Bioscience Corp | S — Open-market sale | 688 | $53.26 | $37K |
| 2026-05-12 | TWST | Twist Bioscience Corp | S — Open-market sale | 5.0K | $56.88 | $282K |
| 2026-05-06 | TWST | Twist Bioscience Corp | S — Open-market sale | 164 | $57.15 | $9K |
| 2026-03-10 | TWST | Twist Bioscience Corp | S — Open-market sale | 246 | $46.43 | $11K |
| 2026-02-25 | TWST | Twist Bioscience Corp | S — Open-market sale | 1.7K | $46.71 | $79K |
| 2026-02-11 | TWST | Twist Bioscience Corp | G — Bona-fide gift | 2.0K | $0.00 | |
| 2026-02-05 | TWST | Twist Bioscience Corp | S — Open-market sale | 7.0K | $45.65 | $320K |
| 2026-02-05 | TWST | Twist Bioscience Corp | S — Open-market sale | 175 | $46.58 | $8K |
| 2025-10-06 | TWST | Twist Bioscience Corp | S — Open-market sale | 2.0K | $32.19 | $66K |
| 2025-09-08 | TWST | Twist Bioscience Corp | S — Open-market sale | 235 | $25.76 | $6K |
| 2025-08-25 | TWST | Twist Bioscience Corp | S — Open-market sale | 853 | $27.69 | $24K |
| 2025-08-21 | TWST | Twist Bioscience Corp | S — Open-market sale | 238 | $25.96 | $6K |
| 2025-08-04 | TWST | Twist Bioscience Corp | S — Open-market sale | 186 | $28.36 | $5K |
| 2024-12-10 | TWST | Twist Bioscience Corp | S — Open-market sale | 226 | $52.70 | $12K |
| 2024-12-06 | TWST | Twist Bioscience Corp | A — Grant or award | 8.4K | $0.00 | |
| 2024-11-27 | TWST | Twist Bioscience Corp | S — Open-market sale | 789 | $44.20 | $35K |
Robert F. Werner serves as the Chief Accounting Officer at Twist Bioscience Corp, a company specializing in synthetic biology and DNA synthesis. He has been involved in various SEC filings related to his role within the company.…
5 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 19 open-market sales ($1.12M) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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