Twist Bioscience Corp
SEC CIK 1581280 · TWST · last insider filing 2026-06-26
Directors (from insider filings)
| Name | Capacity as filed | Filings |
|---|---|---|
| Leproust Emily M. | Director · President & CEO | filed 2018 - 2026 |
| Starovasnik Melissa A. | Director | filed 2021 - 2026 |
| Johannessen JAN | Director | filed 2018 - 2026 |
| Chess Robert | Director | filed 2018 - 2026 |
| Crandell Keith | Director | filed 2018 - 2026 |
| Ragusa Robert P | Director | filed 2018 - 2026 |
| Chan Nelson | Director | filed 2019 - 2026 |
| Blake Katryn | Director | filed 2025 - 2026 |
| Banyai William | Director · See Remarks | filed 2018 - 2024 |
| Mai Xiaoying | Director | filed 2018 - 2024 |
| Barthelemy Nicolas | Director | filed 2019 - 2022 |
| Craves Fred B | Director | filed 2018 - 2019 |
| Conley Paul A. | Director | filed 2018 - 2018 |
Officers (from insider filings)
| Name | Title as filed | Filings |
|---|---|---|
| Cho Dennis | See Remarks | filed 2021 - 2026 |
| Green Paula | VP of Human Resources | filed 2018 - 2026 |
| Werner Robert F. | Chief Accounting Officer | filed 2023 - 2026 |
| Laponis Adam | Chief Financial Officer | filed 2024 - 2026 |
| Finn Patrick John | VP of Sales and Marketing | filed 2018 - 2026 |
| Thorburn James M | Chief Financial Officer | filed 2018 - 2024 |
| Yankton Kevin Bruce | Chief Accounting Officer | filed 2021 - 2023 |
| Weiss Patrick | VP of Operations | filed 2018 - 2022 |
| Daniels Mark | See Remarks | filed 2018 - 2021 |
| Peck Bill | Chief Technology Officer | filed 2018 - 2019 |
| Kunz Martin | SVP, Operations | filed 2019 - 2019 |
About this record
From the SEC's insider-transaction filings (Forms 3, 4 and 5). Every reporting director and officer carries a Commission-assigned identifier (CIK), so these footprints are identifier-verified - no name matching involved. Insiders file when they transact, so dates are filing dates: "last filed" never means "served until". This layer is not yet joined to the nonprofit register - identity joins ship only after independent review.
Source: SEC Insider Transactions Data Sets (Forms 3/4/5), US Federal Government public domain.