Insider holders · CIK 0001581280
Twist Bioscience Corp · TWST
Every insider with a reported Table I holding at this company, ranked by their last-reported share count. A balance is only as fresh as its filing — the report date sits next to every row on purpose. ← Back to activity
| Insider | Direct shares | Indirect shares | Total reported | Last report (ET) | From |
|---|---|---|---|---|---|
| Ever Alpha Fund L.P.10% Owner | 3,294,961 | — | 3,294,961 | Nov 6, 2018 · 5:02 pm EST | Form 4 |
| Robert P RagusaDirector | 0 | 1,702,101 | 1,702,101 | Nov 6, 2018 · 5:01 pm EST | Form 4 |
| ARCH Venture Fund VIII Overage, L.P.10% Owner | — | 954,146 | 954,146 | Nov 6, 2018 · 4:31 pm EST | Form 4 |
| ARCH Venture Partners VIII, LLC10% Owner | — | 954,146 | 954,146 | Nov 6, 2018 · 4:31 pm EST | Form 4 |
| ARCH Venture Partners VII, L.P.10% Owner | — | 954,146 | 954,146 | Nov 6, 2018 · 4:31 pm EST | Form 4 |
| ARCH Venture Partners VII, LLC10% Owner | — | 954,146 | 954,146 | Nov 6, 2018 · 4:31 pm EST | Form 4 |
| ARCH Venture Fund VII, L.P.10% Owner | — | 954,146 | 954,146 | Nov 6, 2018 · 4:31 pm EST | Form 4 |
| Clinton Bybee10% Owner | — | 954,146 | 954,146 | Nov 6, 2018 · 4:31 pm EST | Form 4 |
| Robert Nelsen10% Owner | — | 954,146 | 954,146 | Nov 6, 2018 · 4:31 pm EST | Form 4 |
| Keith CrandellDirector | 0 | 954,146 | 954,146 | Nov 6, 2018 · 5:00 pm EST | Form 4 |
| William BanyaiChief Operating Officer | 747,332 | — | 747,332 | Nov 21, 2018 · 5:40 pm EST | Form 4 |
| Bill PeckChief Technology Officer | 723,332 | — | 723,332 | Nov 21, 2018 · 5:45 pm EST | Form 4 |
| Emily M. LeproustChief Executive Officer | 613,699 | — | 613,699 | Sep 25, 2026 · 4:05 pm EDT | Form 4 |
| Patrick John FinnPresident and COO | 210,802 | — | 210,802 | Aug 25, 2026 · 4:05 pm EDT | Form 4 |
| Paula GreenSVP of Human Resources | 116,720 | — | 116,720 | Sep 23, 2026 · 4:07 pm EDT | Form 4 |
| Adam LaponisChief Financial Officer | 108,633 | — | 108,633 | Aug 25, 2026 · 4:05 pm EDT | Form 4 |
| Patrick WeissSVP, R&D GM Data Storage | 105,287 | — | 105,287 | Nov 21, 2018 · 5:46 pm EST | Form 4 |
| Dennis ChoSee Remarks | 73,303 | — | 73,303 | Sep 23, 2026 · 4:08 pm EDT | Form 4 |
| Fred B CravesDirector | 0 | 66,771 | 66,771 | Nov 6, 2018 · 5:01 pm EST | Form 4 |
| Robert ChessDirector | 21,084 | 42,528 | 63,612 | Aug 11, 2026 · 4:05 pm EDT | Form 4 |
| Mark DanielsSVP, Chief Legal Officer | 51,355 | — | 51,355 | Nov 21, 2018 · 5:41 pm EST | Form 4 |
| Robert F. WernerChief Accounting Officer | 44,399 | — | 44,399 | Sep 10, 2026 · 4:00 pm EDT | Form 4 |
| James M ThorburnChief Financial Officer | 39,002 | — | 39,002 | Nov 21, 2018 · 5:45 pm EST | Form 4 |
| Katryn BlakeDirector | 17,208 | — | 17,208 | Aug 14, 2026 · 4:12 pm EDT | Form 4 |
| Martin KunzSVP, Operations | 12,936 | — | 12,936 | Feb 5, 2019 · 5:26 pm EST | Form 4 |
| Xiaoying MaiDirector | 0 | — | 0 | Oct 30, 2018 · 7:28 pm EDT | Form 3 |
| Paul A. ConleyDirector | 0 | — | 0 | Oct 30, 2018 · 7:25 pm EDT | Form 3 |
| Jan JohannessenDirector | 0 | — | 0 | Oct 30, 2018 · 7:29 pm EDT | Form 3 |
Balances come from each insider’s most recent filing that reports a Table I holding; an insider who left the company years ago still appears with their last-known figure and its date. Indirect totals collapse multiple vehicles (trusts, LLCs) into one number — open the filing for the breakdown. Shares as filed, not split-adjusted.