The Filings Report

Twist Bioscience Corporation Common Stock insider trading

TWSTfinancial statementsForm 4 filings on EDGAR361 transactions since Nov 9, 2024

From August 12, 2026 to November 9, 2026, 0 insiders at Twist Bioscience Corporation Common Stock bought $0 of stock in the open market, and 7 sold $103M. Officers and directors accounted for $0 of purchases and $103M of sales. The last reported transaction was an open-market sale by Cho Dennis on November 3, 2026.

The answer card and chart use the same period. Change the range above the chart to update both. Form 4 filings through November 5, 2026; awards, option exercises, tax withholding and gifts are excluded from these totals.

Stock price and insider activity

Daily price candles with insider purchases and sales directly beneath them on the same timeline. Bars show individual days; totals sum all days in the selected period.

TWST daily priceSplit-adjusted prices in US dollars

Bought $0Sold $103MAug 12, 2026 – Nov 9, 2026

Nov 6, 2026O $123.83 · H $130.90 · L $116.50 · C $120.79Bought $0 (0)Sold $0 (0)
$109$138$167$197$2262026-08-12: open $123.96, high $125.38, low $120.50, close $125.212026-08-13: open $126.22, high $126.40, low $122.14, close $125.292026-08-14: open $124.09, high $124.71, low $118.44, close $118.572026-08-17: open $116.91, high $124.98, low $116.91, close $124.412026-08-18: open $121.61, high $123.30, low $115.28, close $116.102026-08-19: open $128.00, high $142.84, low $127.75, close $142.392026-08-20: open $136.84, high $145.51, low $135.17, close $136.332026-08-21: open $138.43, high $145.93, low $135.05, close $145.592026-08-24: open $145.37, high $145.41, low $137.37, close $140.802026-08-25: open $145.73, high $154.96, low $141.41, close $151.422026-08-26: open $148.00, high $154.00, low $147.00, close $150.062026-08-27: open $149.23, high $155.44, low $148.44, close $153.102026-08-28: open $150.05, high $153.11, low $140.99, close $141.382026-08-31: open $139.99, high $140.60, low $135.00, close $139.002026-09-01: open $134.94, high $138.15, low $131.00, close $132.062026-09-02: open $131.43, high $140.80, low $126.42, close $131.002026-09-03: open $132.85, high $133.95, low $127.42, close $128.712026-09-04: open $125.19, high $128.13, low $123.75, close $124.722026-09-08: open $121.38, high $131.60, low $120.71, close $128.062026-09-09: open $126.51, high $130.99, low $122.52, close $125.522026-09-10: open $121.66, high $129.28, low $120.19, close $126.852026-09-11: open $127.92, high $130.00, low $125.88, close $127.222026-09-14: open $126.04, high $136.86, low $121.92, close $134.752026-09-15: open $134.04, high $138.93, low $131.54, close $138.102026-09-16: open $142.28, high $148.50, low $137.08, close $143.072026-09-17: open $151.43, high $163.70, low $150.00, close $155.562026-09-18: open $158.04, high $167.05, low $156.16, close $166.992026-09-21: open $168.40, high $170.23, low $160.62, close $165.832026-09-22: open $165.83, high $170.66, low $162.86, close $164.602026-09-23: open $164.52, high $166.35, low $157.41, close $158.472026-09-24: open $157.72, high $185.22, low $156.83, close $184.032026-09-25: open $184.03, high $186.20, low $177.39, close $182.832026-09-28: open $181.82, high $187.87, low $175.02, close $179.602026-09-29: open $179.90, high $190.76, low $179.73, close $186.132026-09-30: open $188.75, high $197.19, low $187.05, close $193.242026-10-01: open $193.10, high $200.31, low $187.60, close $188.052026-10-02: open $188.76, high $198.10, low $183.39, close $188.672026-10-05: open $193.46, high $207.90, low $189.25, close $205.002026-10-06: open $209.55, high $219.71, low $164.49, close $166.972026-10-07: open $158.26, high $167.44, low $152.50, close $155.652026-10-08: open $148.00, high $152.59, low $144.60, close $152.052026-10-09: open $152.69, high $168.93, low $152.14, close $159.782026-10-12: open $159.78, high $161.80, low $147.55, close $151.862026-10-13: open $149.00, high $154.23, low $146.00, close $151.332026-10-14: open $146.69, high $156.00, low $144.79, close $148.162026-10-15: open $138.09, high $148.32, low $130.68, close $144.492026-10-16: open $143.88, high $145.05, low $130.98, close $132.752026-10-19: open $136.99, high $141.80, low $133.72, close $139.772026-10-20: open $139.77, high $148.83, low $134.94, close $142.702026-10-21: open $139.34, high $153.80, low $138.25, close $149.132026-10-22: open $143.50, high $150.14, low $131.85, close $135.472026-10-23: open $132.95, high $140.74, low $131.23, close $139.922026-10-26: open $139.45, high $147.62, low $136.19, close $145.252026-10-27: open $145.74, high $162.61, low $143.70, close $159.852026-10-28: open $160.44, high $178.53, low $159.00, close $173.452026-10-29: open $170.43, high $177.99, low $169.07, close $173.452026-10-30: open $162.94, high $167.27, low $148.00, close $152.782026-11-02: open $154.11, high $154.23, low $128.29, close $129.042026-11-03: open $130.35, high $141.62, low $130.14, close $140.302026-11-04: open $140.78, high $142.98, low $131.32, close $142.582026-11-05: open $134.79, high $134.98, low $118.60, close $120.612026-11-06: open $123.83, high $130.90, low $116.50, close $120.79Insider purchases / sales · USD$100M$0−$100M2026-08-12: 0 purchases ($0), 2 sales ($3M)2026-08-18: 0 purchases ($0), 7 sales ($9M)2026-08-19: 0 purchases ($0), 1 sales ($2M)2026-08-21: 0 purchases ($0), 6 sales ($2M)2026-08-24: 0 purchases ($0), 1 sales ($120K)2026-08-25: 0 purchases ($0), 5 sales ($6M)2026-09-08: 0 purchases ($0), 4 sales ($473K)2026-09-17: 0 purchases ($0), 13 sales ($56M)2026-09-21: 0 purchases ($0), 3 sales ($385K)2026-09-24: 0 purchases ($0), 10 sales ($923K)2026-10-01: 0 purchases ($0), 1 sales ($131K)2026-10-02: 0 purchases ($0), 6 sales ($19M)2026-10-05: 0 purchases ($0), 8 sales ($919K)2026-10-09: 0 purchases ($0), 1 sales ($385K)2026-10-23: 0 purchases ($0), 1 sales ($302K)2026-11-03: 0 purchases ($0), 5 sales ($1M)Aug 12Sep 2Sep 25Oct 16Nov 6

purchases above zero; sales below. Both use the transaction date and the same dollar scale. Hover, tap, or use arrow keys to inspect a date. Awards, exercises, tax withholding and gifts are excluded.

Dates with prices or insider activity are spaced evenly; empty weekends and holidays are omitted. Prices through Nov 6, 2026. Insider data through Nov 9, 2026. Prices are adjusted for splits; transaction values are reported dollars.

Every transaction

361 transactions from November 9, 2024 to November 9, 2026, newest first. Open-market purchases and sales are coloured; awards, exercises, tax withholding and gifts are grey and not counted.

TradedInsiderRoleTransactionSharesPriceValueHeld afterFiled
Nov 3, 2026Cho DennisSee Remarksopen-market sale949$135.40$128K62,840Nov 5, 2026
Nov 3, 2026Finn Patrick JohnPresident and COOopen-market sale2,565$135.40$347K180,278Nov 5, 2026
Nov 3, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale4,573$135.40$619K558,187Nov 5, 2026
Nov 3, 2026Werner Robert F.Chief Accounting Officeropen-market sale148$135.40$20K42,769Nov 5, 2026
Nov 3, 2026Green PaulaSVP of Human Resourcesopen-market sale1,007$135.40$136K105,625Nov 5, 2026
Oct 23, 2026Finn Patrick JohnPresident and COOopen-market sale2,245$134.59$302K182,843Oct 27, 2026
Oct 9, 2026Laponis AdamChief Financial Officeropen-market sale2,462$156.30$385K98,114Oct 13, 2026
Oct 5, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-11,840$200.44$369K565,468Oct 7, 2026
Oct 5, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-1481$201.26$97K564,987Oct 7, 2026
Oct 5, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-11,017$202.32$206K563,970Oct 7, 2026
Oct 5, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-1432$203.61$88K563,538Oct 7, 2026
Oct 5, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-1290$204.80$59K563,248Oct 7, 2026
Oct 5, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-1297$205.78$61K562,951Oct 7, 2026
Oct 5, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-1146$206.84$30K562,805Oct 7, 2026
Oct 5, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-145$207.46$9K562,760Oct 7, 2026
Oct 2, 2026Laponis AdamChief Financial Officeropen-market sale8,057$188.88$2M100,576Oct 5, 2026
Oct 2, 2026Green PaulaSVP of Human Resourcesopen-market sale10,088$188.88$2M106,632Oct 5, 2026
Oct 2, 2026Finn Patrick JohnPresident and COOopen-market sale25,714$188.88$5M185,088Oct 5, 2026
Oct 2, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-145,736$188.88$9M567,308Oct 5, 2026
Oct 2, 2026Cho DennisSee Remarksopen-market sale9,514$188.88$2M63,789Oct 5, 2026
Oct 2, 2026Werner Robert F.Chief Accounting Officeropen-market sale1,482$188.88$280K42,917Oct 5, 2026
Oct 1, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-1655$200.00$131K613,044Oct 5, 2026
Sep 24, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-12,485$175.23$435K616,417Sep 25, 2026
Sep 24, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-1945$176.39$167K615,472Sep 25, 2026
Sep 24, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-1164$177.17$29K615,308Sep 25, 2026
Sep 24, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-1330$178.67$59K614,978Sep 25, 2026
Sep 24, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-1143$179.93$26K614,835Sep 25, 2026
Sep 24, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-1515$180.39$93K614,320Sep 25, 2026
Sep 24, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-121$181.45$4K614,299Sep 25, 2026
Sep 24, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-116$182.50$3K614,283Sep 25, 2026
Sep 24, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-1501$183.76$92K613,782Sep 25, 2026
Sep 24, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-183$184.60$15K613,699Sep 25, 2026
Sep 21, 2026Cho DennisSee Remarksopen-market sale348$165.49$58K73,303Sep 23, 2026
Sep 21, 2026Green PaulaSVP of Human Resourcesopen-market sale294$165.49$49K116,720Sep 23, 2026
Sep 21, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale1,687$165.49$279K618,902Sep 23, 2026
Sep 17, 2026Leproust Emily M.Chief Executive Officer, Directoroption exercise133,269$26.66$4M901,696Sep 21, 2026
Sep 17, 2026Leproust Emily M.Chief Executive Officer, Directoroption exercise75,439$8.82$665K977,135Sep 21, 2026
Sep 17, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-12,440$151.46$370K974,695Sep 21, 2026
Sep 17, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-16,644$152.21$1M968,051Sep 21, 2026
Sep 17, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-13,399$153.40$521K964,652Sep 21, 2026
Sep 17, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-14,175$154.17$644K960,477Sep 21, 2026
Sep 17, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-113,378$155.46$2M947,099Sep 21, 2026
Sep 17, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-19,097$156.47$1M938,002Sep 21, 2026
Sep 17, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-132,260$157.49$5M905,742Sep 21, 2026
Sep 17, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-1232,173$158.09$37M673,569Sep 21, 2026
Sep 17, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-123,884$159.53$4M649,685Sep 21, 2026
Sep 17, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-114,493$160.44$2M635,192Sep 21, 2026
Sep 17, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-111,169$161.49$2M624,023Sep 21, 2026
Sep 17, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-12,565$162.31$416K621,458Sep 21, 2026
Sep 17, 2026Leproust Emily M.Chief Executive Officer, Directoropen-market sale10b5-1869$163.39$142K620,589Sep 21, 2026

Who the insiders are

Everyone who reported a transaction since November 9, 2024, by open-market value over twelve months. Shares held are after the insider’s latest directly held transaction.

InsiderRoleLast transactionKindShares heldBought, 12 monthsSold, 12 monthsSales under a plan
Leproust Emily M.Chief Executive Officer, DirectorNov 3, 2026open-market sale558,187—$101M (67)51 of 67
Finn Patrick JohnPresident and COONov 3, 2026open-market sale180,278—$22M (27)14 of 27
Cho DennisSee RemarksNov 3, 2026open-market sale62,840—$9M (22)5 of 22
Green PaulaSVP of Human ResourcesNov 3, 2026open-market sale105,625—$7M (20)0 of 20
Laponis AdamChief Financial OfficerOct 9, 2026open-market sale98,114—$4M (14)5 of 14
Chess RobertDirectorAug 7, 2026option exercise39,501—$3M (3)2 of 3
Werner Robert F.Chief Accounting OfficerNov 3, 2026open-market sale42,769—$1M (19)0 of 19
Johannessen JanDirectorMay 12, 2026option exercise29,754—$953K (3)0 of 3
Starovasnik Melissa A.DirectorMay 28, 2026open-market sale22,222—$282K (4)4 of 4
Blake KatrynDirectorAug 12, 2026open-market sale17,208—$275K (1)0 of 1
Crandell KeithDirectorFeb 5, 2026award27,571———
Ragusa Robert PDirectorFeb 5, 2026award28,983———
Chan NelsonDirectorFeb 5, 2026award33,251———
Chan Nelson CDirectorFeb 5, 2025award28,156———

Questions

Are Twist Bioscience Corporation Common Stock insiders buying or selling?

Over the twelve months to November 9, 2026, 10 insiders at Twist Bioscience Corporation Common Stock sold $148M of stock in the open market, all by officers and directors, and no insider bought. Net, insiders sold $148M. Only open-market purchases and sales are counted.

Who sold the most Twist Bioscience Corporation Common Stock stock in the last year?

Leproust Emily M. (Chief Executive Officer, Director) sold $101M in 67 open-market sales over the twelve months to November 9, 2026.

Do Twist Bioscience Corporation Common Stock executives sell under 10b5-1 plans?

81 of the 180 open-market sales in the last twelve months (45%) were reported as made under a Rule 10b5-1 trading plan, set up in advance. A sale under a plan is still counted as a sale.

What counts as insider buying here?

Only open-market purchases (Form 4 code P) and sales (code S) by officers, directors and 10% owners. Stock awards, option exercises, shares withheld for tax and gifts are listed in the table but never counted as buying or selling.

More on Twist Bioscience Corporation Common Stock

From Form 4, 4/A and 5 filings with the SEC. A record of insider transactions, not a recommendation.