LYTIR

Company · TWST

Twist Bioscience Corporation

Name as listed on its exchange; filed with the SEC as Twist Bioscience Corp.

Nasdaq's symbol directory lists TWST on Nasdaq as “Twist Bioscience Corporation - Common Stock”.

In the 12 months to Nov 8, 2026: insiders sold on 52 occasions ($127.1M); 21 planned-sale notices; 9 filings by holders of 5% or more.

All insider filings at the SEC · Appeared in No. 6, No. 5, No. 4, No. 3, No. 2, No. 1

Insider purchases and sales, by month (last 12 months)Insider purchases: $0 in total; Insider sales: $127.1M in total.Jun: Insider sales $5.4MJul: Insider sales $436KAug: Insider sales $41.2MSep: Insider sales $58.1MOct: Insider sales $20.7MNov: Insider sales $1.3MDecJanFebMarAprMayJunJulAugSepOctNov
Insider purchases above the line: $0Insider sales below: $127.1M
Dollar value of open-market purchases and sales reported on SEC Form 4, by the month traded. Sales include pre-arranged 10b5-1 plan sales.

Insider trades · SEC Form 4

Those inside the hall

Open-market purchases and sales only. Legs one person filed for one day are combined.

Who traded

  1. Emily M. Leproust, Chief Executive Officer sold on 15 days 9 of them under a 10b5-1 plan latest Nov 3, 2026 sold $94.4M
  2. Patrick John Finn, President and COO sold on 7 days 1 of them under a 10b5-1 plan latest Nov 3, 2026 sold $15.7M
  3. Dennis Cho, Senior Vice President, Chief Legal Officer & Corporate Secretary sold on 10 days 3 of them under a 10b5-1 plan latest Nov 3, 2026 sold $7.1M
  4. Paula Green, SVP of Human Resources sold on 8 days latest Nov 3, 2026 sold $4.6M
  5. Adam Laponis, Chief Financial Officer sold on 4 days latest Oct 9, 2026 sold $2.4M
  6. Robert Chess sold on 1 day all under a 10b5-1 plan latest Aug 7, 2026 sold $2.0M
  7. WERNER ROBERT F., Chief Accounting Officer sold on 6 days latest Nov 3, 2026 sold $557K
  8. BLAKE KATRYN sold on 1 day latest Aug 12, 2026 sold $275K
Every trade (52)
  1. SELLEmily M. Leproust, Chief Executive Officer sold Nov 3, 2026 4,573 shares filing $619K
  2. SELLPatrick John Finn, President and COO sold Nov 3, 2026 2,565 shares filing $347K
  3. SELLPaula Green, SVP of Human Resources sold Nov 3, 2026 1,007 shares filing $136K
  4. SELLDennis Cho, Senior Vice President, Chief Legal Officer & Corporate Secretary sold Nov 3, 2026 949 shares filing $128K
  5. SELLWERNER ROBERT F., Chief Accounting Officer sold Nov 3, 2026 148 shares filing $20K
  6. SELLPatrick John Finn, President and COO sold Oct 23, 2026 2,245 shares filing $302K
  7. SELLAdam Laponis, Chief Financial Officer sold Oct 9, 2026 2,462 shares filing $385K
  8. SELLEmily M. Leproust, Chief Executive Officer sold Oct 5, 2026 4,548 shares 8 legs combined 10b5-1 plan (scheduled) filing $919K
  9. SELLEmily M. Leproust, Chief Executive Officer sold Oct 2, 2026 45,736 shares 10b5-1 plan (scheduled) filing $8.6M
  10. SELLPatrick John Finn, President and COO sold Oct 2, 2026 25,714 shares filing $4.9M
  11. SELLPaula Green, SVP of Human Resources sold Oct 2, 2026 10,088 shares filing $1.9M
  12. SELLDennis Cho, Senior Vice President, Chief Legal Officer & Corporate Secretary sold Oct 2, 2026 9,514 shares filing $1.8M
  13. SELLAdam Laponis, Chief Financial Officer sold Oct 2, 2026 8,057 shares filing $1.5M
  14. SELLWERNER ROBERT F., Chief Accounting Officer sold Oct 2, 2026 1,482 shares filing $280K
  15. SELLEmily M. Leproust, Chief Executive Officer sold Oct 1, 2026 655 shares 10b5-1 plan (scheduled) filing $131K
  16. SELLEmily M. Leproust, Chief Executive Officer sold Sep 24, 2026 5,203 shares 10 legs combined 10b5-1 plan (scheduled) filing $923K
  17. SELLEmily M. Leproust, Chief Executive Officer sold Sep 21, 2026 1,687 shares filing $279K
  18. SELLDennis Cho, Senior Vice President, Chief Legal Officer & Corporate Secretary sold Sep 21, 2026 348 shares filing $58K
  19. SELLPaula Green, SVP of Human Resources sold Sep 21, 2026 294 shares filing $49K
  20. SELLEmily M. Leproust, Chief Executive Officer sold Sep 17, 2026 356,546 shares 13 legs combined 10b5-1 plan (scheduled) filing $56.3M
  21. SELLEmily M. Leproust, Chief Executive Officer sold Sep 8, 2026 2,302 shares filing $282K
  22. SELLPaula Green, SVP of Human Resources sold Sep 8, 2026 907 shares filing $111K
  23. SELLDennis Cho, Senior Vice President, Chief Legal Officer & Corporate Secretary sold Sep 8, 2026 412 shares filing $51K
  24. SELLWERNER ROBERT F., Chief Accounting Officer sold Sep 8, 2026 238 shares filing $29K
  25. SELLEmily M. Leproust, Chief Executive Officer sold Aug 25, 2026 41,570 shares 5 legs combined 10b5-1 plan (scheduled) filing $6.3M
  26. SELLWERNER ROBERT F., Chief Accounting Officer sold Aug 24, 2026 854 shares filing $120K
  27. SELLEmily M. Leproust, Chief Executive Officer sold Aug 21, 2026 6,639 shares filing $923K
  28. SELLPatrick John Finn, President and COO sold Aug 21, 2026 4,046 shares filing $563K
  29. SELLAdam Laponis, Chief Financial Officer sold Aug 21, 2026 1,965 shares filing $273K
  30. SELLDennis Cho, Senior Vice President, Chief Legal Officer & Corporate Secretary sold Aug 21, 2026 1,598 shares filing $222K
  31. SELLPaula Green, SVP of Human Resources sold Aug 21, 2026 1,360 shares filing $189K
  32. SELLWERNER ROBERT F., Chief Accounting Officer sold Aug 21, 2026 669 shares filing $93K
  33. SELLDennis Cho, Senior Vice President, Chief Legal Officer & Corporate Secretary sold Aug 19, 2026 14,205 shares 10b5-1 plan (scheduled) filing $1.8M
  34. SELLPatrick John Finn, President and COO sold Aug 18, 2026 78,355 shares 7 legs combined 10b5-1 plan (scheduled) filing $9.2M
  35. SELLEmily M. Leproust, Chief Executive Officer sold Aug 12, 2026 19,952 shares 10b5-1 plan (scheduled) filing $2.5M
  36. SELLBLAKE KATRYN sold Aug 12, 2026 2,240 shares filing $275K
  37. SELLEmily M. Leproust, Chief Executive Officer sold Aug 10, 2026 113,318 shares 10b5-1 plan (scheduled) filing $14.2M
  38. SELLRobert Chess sold Aug 7, 2026 18,417 shares 10b5-1 plan (scheduled) filing $2.0M
  39. SELLDennis Cho, Senior Vice President, Chief Legal Officer & Corporate Secretary sold Aug 5, 2026 14,205 shares 10b5-1 plan (scheduled) filing $1.6M
  40. SELLEmily M. Leproust, Chief Executive Officer sold Aug 3, 2026 5,101 shares filing $435K
  41. SELLPatrick John Finn, President and COO sold Aug 3, 2026 2,888 shares filing $246K
  42. SELLPaula Green, SVP of Human Resources sold Aug 3, 2026 1,133 shares filing $97K
  43. SELLDennis Cho, Senior Vice President, Chief Legal Officer & Corporate Secretary sold Aug 3, 2026 1,070 shares filing $91K
  44. SELLWERNER ROBERT F., Chief Accounting Officer sold Aug 3, 2026 167 shares filing $14K
  45. SELLPatrick John Finn, President and COO sold Jul 23, 2026 2,238 shares filing $210K
  46. SELLAdam Laponis, Chief Financial Officer sold Jul 9, 2026 2,399 shares filing $226K
  47. SELLEmily M. Leproust, Chief Executive Officer sold Jun 25, 2026 18,880 shares 10b5-1 plan (scheduled) filing $1.8M
  48. SELLDennis Cho, Senior Vice President, Chief Legal Officer & Corporate Secretary sold Jun 24, 2026 14,205 shares 10b5-1 plan (scheduled) filing $1.3M
  49. SELLEmily M. Leproust, Chief Executive Officer sold Jun 22, 2026 1,688 shares filing $147K
  50. SELLDennis Cho, Senior Vice President, Chief Legal Officer & Corporate Secretary sold Jun 22, 2026 346 shares filing $30K
  51. SELLPaula Green, SVP of Human Resources sold Jun 22, 2026 291 shares filing $25K
  52. SELLPaula Green, SVP of Human Resources sold Jun 15, 2026 26,137 shares 2 legs combined filing $2.1M

Planned sales · SEC Form 144

Notice given

A Form 144 is filed before an insider sells restricted stock. It states an intent; the sale, if it happens, appears later on a Form 4. Every recent notice

  1. Leproust Emily M. filed Nov 3, 2026 Officer 4,573 shares planned sale date 11/03/2026 filing $619K
  2. Finn Patrick John filed Nov 3, 2026 Officer 2,565 shares planned sale date 11/03/2026 filing $347K
  3. Green Paula filed Nov 3, 2026 Officer 1,007 shares planned sale date 11/03/2026 filing $136K
  4. Cho Dennis filed Nov 3, 2026 Officer 949 shares planned sale date 11/03/2026 filing $128K
  5. WERNER ROBERT F. filed Nov 3, 2026 Officer 148 shares planned sale date 11/03/2026 filing $20K
  6. Finn Patrick John filed Oct 23, 2026 Officer 2,245 shares planned sale date 10/23/2026 filing $302K
  7. Laponis Adam filed Oct 9, 2026 Officer 2,462 shares planned sale date 10/09/2026 filing $385K
  8. Leproust Emily M. filed Oct 5, 2026 Officer 4,548 shares planned sale date 10/05/2026 filing $919K
  9. Leproust Emily M. filed Oct 2, 2026 Officer 45,736 shares planned sale date 10/02/2026 filing $8.6M
  10. Finn Patrick John filed Oct 2, 2026 Officer 25,714 shares planned sale date 10/02/2026 filing $4.9M
  11. Green Paula filed Oct 2, 2026 Officer 10,088 shares planned sale date 10/02/2026 filing $1.9M
  12. Cho Dennis filed Oct 2, 2026 Officer 9,514 shares planned sale date 10/02/2026 filing $1.8M
  13. Laponis Adam filed Oct 2, 2026 Officer 8,057 shares planned sale date 10/02/2026 filing $1.5M
  14. WERNER ROBERT F. filed Oct 2, 2026 Officer 1,482 shares planned sale date 10/02/2026 filing $280K
  15. Leproust Emily M. filed Oct 1, 2026 Officer 655 shares planned sale date 10/01/2026 filing $131K
  16. Leproust Emily M. filed Sep 24, 2026 Officer 5,203 shares planned sale date 09/24/2026 filing $923K
  17. Leproust Emily M. filed Sep 21, 2026 Officer 1,687 shares planned sale date 09/21/2026 filing $279K
  18. Cho Dennis filed Sep 21, 2026 Officer 348 shares planned sale date 09/21/2026 filing $58K
  19. Green Paula filed Sep 21, 2026 Officer 294 shares planned sale date 09/21/2026 filing $49K
  20. Leproust Emily M. filed Sep 17, 2026 Officer 295,037 shares planned sale date 09/17/2026 filing $44.7M
  21. Leproust Emily M. filed Sep 17, 2026 Officer 61,509 shares planned sale date 09/17/2026 filing $9.3M

Large holders · SEC Schedules 13D and 13G

Five percent and over

Anyone who comes to hold more than 5% of a company's voting shares must tell the SEC. A Schedule 13D is filed by a holder who may seek to influence the company; a 13G by one who states it is a passive investor. An amendment updates an earlier filing, and a stake reported as 0% means the holder says it has sold all, or nearly all, of its shares. Every recent 13D and 13G

  1. FMR LLC filed Nov 5, 2026 Schedule 13G/A passive 9,535,192 shares filing 14.4%
  2. FMR LLC filed Sep 8, 2026 Schedule 13G/A passive 8,760,081 shares filing 13.2%
  3. ARK Investment Management LLC filed Sep 8, 2026 Schedule 13G/A passive filing 5.11%
  4. ARK Investment Management LLC filed Aug 14, 2026 Schedule 13G/A passive filing 7.31%
  5. T. Rowe Price Associates, Inc. filed Aug 14, 2026 Schedule 13G passive 3,634,470 shares filing 5.8%
  6. EdgePoint Investment Group Inc. filed Aug 14, 2026 Schedule 13G/A passive 2,521,635 shares filing 4.21%
  7. Artisan Partners Asset Management Inc. filed Aug 13, 2026 Schedule 13G/A passive 4,802,017 shares filing 7.7%
  8. WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC filed Aug 11, 2026 Schedule 13G/A passive 2,174,594 shares filing 3.5%
  9. FMR LLC filed Aug 6, 2026 Schedule 13G passive 4,703,044 shares filing 7.6%

Sources: SEC EDGAR (Forms 4 and 144) and STOCK Act periodic transaction reports. Filings can be late, amended or wrong at the source; see methodology.