LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM
TWSTCIK 0001581280

Twist Bioscience Corp

206 transactions by 13 insiders, from October 28, 2025 to October 9, 2026.

Transactions
20613 insiders
Bought · P
Nonenobody bought on the open market
Sold · S
$126.7Mopen market
Net
−$126.7Mnet selling

Officers and directors

People inside the company. What they do with their own shares is the reason this data exists.

InsiderTradesPlannedBoughtSold
Emily M. LeproustCEO7867/78—$91.3M
Patrick John FinnCOO3930/39—$16.0M
Dennis ChoOfficer235/23—$7.0M
Paula GreenSVP16——$4.9M
Robert F. WernerCAO15——$1.1M
Adam LaponisCFO125/12—$2.5M
Robert ChessDir86/8—$2.6M
Jan JohannessenDir5——$779K
Melissa A. StarovasnikDir54/5—$282K
Katryn BlakeDir2——$275K
Nelson ChanDir1———
Keith CrandellDir1———
Robert P. RagusaDir1———

All transactions

206 in total, newest filings first.

InsiderDateCodeSharesPriceValue
Adam LaponisCFOOct 9S2,462$156.30$385K
Emily M. LeproustCEOOct 5SPLAN45$207.46$9K
Emily M. LeproustCEOOct 5SPLAN146$206.84$30K
Emily M. LeproustCEOOct 5SPLAN297$205.78$61K
Emily M. LeproustCEOOct 5SPLAN290$204.80$59K
Emily M. LeproustCEOOct 5SPLAN432$203.61$88K
Emily M. LeproustCEOOct 5SPLAN1,017$202.32$206K
Emily M. LeproustCEOOct 5SPLAN481$201.26$97K
Emily M. LeproustCEOOct 5SPLAN1,840$200.44$369K
Emily M. LeproustCEOSep 24SPLAN83$184.60$15K
Emily M. LeproustCEOSep 24SPLAN501$183.76$92K
Emily M. LeproustCEOSep 24SPLAN16$182.50$3K
Emily M. LeproustCEOSep 24SPLAN21$181.45$4K
Emily M. LeproustCEOSep 24SPLAN515$180.39$93K
Emily M. LeproustCEOSep 24SPLAN143$179.93$26K
Emily M. LeproustCEOSep 24SPLAN330$178.67$59K
Emily M. LeproustCEOSep 24SPLAN164$177.17$29K
Emily M. LeproustCEOSep 24SPLAN945$176.39$167K
Emily M. LeproustCEOSep 24SPLAN2,485$175.23$435K
Dennis ChoOfficerSep 21S348$165.49$58K
Paula GreenSVPSep 21S294$165.49$49K
Emily M. LeproustCEOSep 21S1,687$165.49$279K
Emily M. LeproustCEODERIVSep 17MPLAN133,269$0.00—?
Emily M. LeproustCEODERIVSep 17MPLAN75,439$0.00—?
Emily M. LeproustCEOSep 17SPLAN869$163.39$142K
Emily M. LeproustCEOSep 17SPLAN2,565$162.31$416K
Emily M. LeproustCEOSep 17SPLAN11,169$161.49$1.8M
Emily M. LeproustCEOSep 17SPLAN14,493$160.44$2.3M
Emily M. LeproustCEOSep 17SPLAN23,884$159.53$3.8M
Emily M. LeproustCEOSep 17SPLAN232,173$158.09$36.7M
Emily M. LeproustCEOSep 17SPLAN32,260$157.49$5.1M
Emily M. LeproustCEOSep 17SPLAN9,097$156.47$1.4M
Emily M. LeproustCEOSep 17SPLAN13,378$155.46$2.1M
Emily M. LeproustCEOSep 17SPLAN4,175$154.17$644K
Emily M. LeproustCEOSep 17SPLAN3,399$153.40$521K
Emily M. LeproustCEOSep 17SPLAN6,644$152.21$1.0M
Emily M. LeproustCEOSep 17SPLAN2,440$151.46$370K
Emily M. LeproustCEOSep 17MPLAN75,439$8.82$665K
Emily M. LeproustCEOSep 17MPLAN133,269$26.66$3.6M
Emily M. LeproustCEOAug 25SPLAN1,093$154.45$169K
Emily M. LeproustCEOAug 25SPLAN9,181$153.93$1.4M
Emily M. LeproustCEOAug 25SPLAN6,412$152.75$979K
Emily M. LeproustCEOAug 25SPLAN12,236$151.36$1.9M
Emily M. LeproustCEOAug 25SPLAN12,648$150.56$1.9M
Robert F. WernerCAOAug 24S854$140.77$120K
Robert F. WernerCAOAug 21S669$139.07$93K
Emily M. LeproustCEOAug 21S6,639$139.07$923K
Adam LaponisCFOAug 21S1,965$139.07$273K
Paula GreenSVPAug 21S1,360$139.07$189K
Patrick John FinnCOOAug 21S4,046$139.07$563K
Dennis ChoOfficerAug 21S1,598$139.07$222K
Dennis ChoOfficerAug 19SPLAN14,205$129.75$1.8M
Patrick John FinnCOODERIVAug 18MPLAN23,355$0.00—?
Patrick John FinnCOOAug 18SPLAN2,000$122.58$245K
Patrick John FinnCOOAug 18SPLAN6,296$121.01$762K
Patrick John FinnCOOAug 18SPLAN12,917$119.86$1.5M
Patrick John FinnCOOAug 18SPLAN4,500$119.04$536K
Patrick John FinnCOOAug 18SPLAN8,868$117.70$1.0M
Patrick John FinnCOOAug 18SPLAN10,420$116.82$1.2M
Patrick John FinnCOOAug 18SPLAN33,354$115.90$3.9M
Patrick John FinnCOOAug 18MPLAN23,355$67.85$1.6M
Emily M. LeproustCEODERIVAug 12MPLAN19,952$0.00—?
Emily M. LeproustCEOAug 12SPLAN19,952$125.08$2.5M
Emily M. LeproustCEOAug 12MPLAN19,952$26.66$532K
Katryn BlakeDirAug 12S2,240$122.88$275K
Emily M. LeproustCEODERIVAug 10MPLAN113,318$0.00—?
Emily M. LeproustCEOAug 10SPLAN113,318$125.16$14.2M
Emily M. LeproustCEOAug 10MPLAN113,318$26.66$3.0M
Robert ChessDirDERIVAug 7MPLAN18,417$0.00—?
Robert ChessDirAug 7SPLAN18,417$110.89$2.0M
Robert ChessDirAug 7MPLAN18,417$11.89$219K
Dennis ChoOfficerAug 5SPLAN14,205$109.75$1.6M
Robert F. WernerCAOAug 3S167$85.32$14K
Emily M. LeproustCEOAug 3S5,101$85.32$435K
Paula GreenSVPAug 3S1,133$85.32$97K
Patrick John FinnCOOAug 3S2,888$85.32$246K
Dennis ChoOfficerAug 3S1,070$85.32$91K
Patrick John FinnCOOJul 23S2,238$93.89$210K
Adam LaponisCFOJul 9S2,399$94.33$226K
Emily M. LeproustCEOJun 25SPLAN18,880$95.00$1.8M
Dennis ChoOfficerJun 24SPLAN14,205$89.75$1.3M
Emily M. LeproustCEOJun 22S1,688$87.32$147K
Paula GreenSVPJun 22S291$87.32$25K
Dennis ChoOfficerJun 22S346$87.32$30K
Paula GreenSVPDERIVJun 15M26,137$0.00—?
Paula GreenSVPJun 15S2,028$82.17$167K
Paula GreenSVPJun 15S24,109$81.62$2.0M
Paula GreenSVPJun 15M26,137$23.33$610K
Robert F. WernerCAOJun 8G500$0.00—
Robert F. WernerCAOJun 8S1,127$69.07$78K
Robert F. WernerCAOJun 8S232$69.84$16K
Emily M. LeproustCEOJun 8S2,265$69.84$158K
Paula GreenSVPJun 8S884$69.84$62K
Dennis ChoOfficerJun 8S402$69.84$28K
Adam LaponisCFOMay 29SPLAN4,000$70.00$280K
Dennis ChoOfficerMay 29SPLAN14,205$69.75$991K
Melissa A. StarovasnikDirMay 28SPLAN2,500$68.00$170K
Emily M. LeproustCEODERIVMay 28MPLAN16,470$0.00—?
Emily M. LeproustCEOMay 28SPLAN6,465$68.61$444K
Emily M. LeproustCEOMay 28SPLAN7,623$67.95$518K
Emily M. LeproustCEOMay 28SPLAN900$66.85$60K
Emily M. LeproustCEOMay 28SPLAN1,482$65.33$97K
Emily M. LeproustCEOMay 28MPLAN16,470$8.82$145K
Robert F. WernerCAOMay 26S800$62.48$50K
Melissa A. StarovasnikDirMay 26SPLAN500$61.04$31K
Emily M. LeproustCEODERIVMay 27MPLAN25,017$0.00—?
Emily M. LeproustCEODERIVMay 26MPLAN24,282$0.00—?
Emily M. LeproustCEOMay 27SPLAN1,265$66.28$84K
Emily M. LeproustCEOMay 27SPLAN23,752$65.24$1.5M
Emily M. LeproustCEOMay 27MPLAN25,017$8.82$221K
Emily M. LeproustCEOMay 26SPLAN24,282$65.08$1.6M
Emily M. LeproustCEOMay 26MPLAN24,282$8.82$214K
Robert F. WernerCAOMay 21S688$53.26$37K
Emily M. LeproustCEOMay 21S6,888$53.26$367K
Adam LaponisCFOMay 21S2,019$53.26$108K
Paula GreenSVPMay 21S1,399$53.26$75K
Patrick John FinnCOOMay 21S4,160$53.26$222K
Dennis ChoOfficerMay 21S1,642$53.26$87K
Jan JohannessenDirDERIVMay 12M12,000$0.00—?
Jan JohannessenDirMay 12S12,000$56.12$673K
Jan JohannessenDirMay 12M12,000$14.00$168K
Robert F. WernerCAOMay 8S4,961$56.88$282K
Robert F. WernerCAOMay 4S164$57.15$9K
Emily M. LeproustCEOMay 4S5,127$57.15$293K
Paula GreenSVPMay 4S1,116$57.15$64K
Patrick John FinnCOOMay 4S2,844$57.15$163K
Dennis ChoOfficerMay 4S1,962$57.15$112K
Melissa A. StarovasnikDirApr 27SPLAN500$61.83$31K
Patrick John FinnCOOApr 23S2,321$60.76$141K
Emily M. LeproustCEODERIVApr 22MPLAN8,061$0.00—?
Emily M. LeproustCEODERIVApr 21MPLAN1,610$0.00—?
Emily M. LeproustCEOApr 22SPLAN151$66.00$10K
Emily M. LeproustCEOApr 22SPLAN7,910$65.28$516K
Emily M. LeproustCEOApr 22MPLAN8,061$8.82$71K
Emily M. LeproustCEOApr 21SPLAN1,610$65.01$105K
Emily M. LeproustCEOApr 21MPLAN1,610$8.82$14K
Adam LaponisCFOApr 17SPLAN4,000$60.00$240K
Adam LaponisCFOApr 14SPLAN3,000$55.00$165K
Adam LaponisCFOApr 9S2,597$49.89$130K
Melissa A. StarovasnikDirApr 1SPLAN1,000$51.00$51K
Emily M. LeproustCEOMar 20S1,742$43.79$76K
Paula GreenSVPMar 20S297$43.79$13K
Dennis ChoOfficerMar 20S354$43.79$16K
Robert ChessDirDERIVMar 17MPLAN10,000$0.00—?
Robert ChessDirMar 17SPLAN10,000$47.00$470K
Robert ChessDirMar 17MPLAN10,000$11.89$119K
Robert F. WernerCAOMar 6S246$46.43$11K
Emily M. LeproustCEOMar 6S2,423$46.43$112K
Paula GreenSVPMar 6S935$46.43$43K
Dennis ChoOfficerMar 6S425$46.43$20K
Robert F. WernerCAOFeb 23S1,693$46.71$79K
Emily M. LeproustCEOFeb 23S7,205$46.71$337K
Adam LaponisCFOFeb 23S2,085$46.71$97K
Paula GreenSVPFeb 23S1,465$46.71$68K
Patrick John FinnCOOFeb 23S4,294$46.71$201K
Dennis ChoOfficerFeb 23S844$46.71$39K
Paula GreenSVPFeb 17S39,404$52.40$2.1M
Patrick John FinnCOODERIVFeb 17MPLAN18,205$0.00—?
Patrick John FinnCOODERIVFeb 17MPLAN32,300$0.00—?
Patrick John FinnCOOFeb 17SPLAN3,541$53.11$188K
Patrick John FinnCOOFeb 17SPLAN26,952$52.69$1.4M
Patrick John FinnCOOFeb 17SPLAN16,616$51.42$854K
Patrick John FinnCOOFeb 17SPLAN21,858$50.32$1.1M
Patrick John FinnCOOFeb 17MPLAN32,300$26.66$861K
Patrick John FinnCOOFeb 17MPLAN18,205$23.33$425K
Robert ChessDirFeb 13S2,184$48.26$105K
Patrick John FinnCOODERIVFeb 13MPLAN500$0.00—?
Patrick John FinnCOODERIVFeb 13MPLAN712$0.00—?
Patrick John FinnCOODERIVFeb 12MPLAN1,000$0.00—?
Patrick John FinnCOODERIVFeb 12MPLAN1,500$0.00—?
Patrick John FinnCOOFeb 13SPLAN1,750$50.04$88K
Patrick John FinnCOOFeb 13MPLAN712$26.66$19K
Patrick John FinnCOOFeb 13MPLAN500$23.33$12K
Patrick John FinnCOOFeb 12SPLAN3,500$50.23$176K
Patrick John FinnCOOFeb 12MPLAN1,500$26.66$40K
Patrick John FinnCOOFeb 12MPLAN1,000$23.33$23K
Adam LaponisCFOFeb 12SPLAN7,000$50.00$350K
Dennis ChoOfficerFeb 11SPLAN5,000$49.93$250K
Robert F. WernerCAOFeb 9G2,000$0.00—
Melissa A. StarovasnikDirFeb 5A5,095$0.00—
Robert P. RagusaDirFeb 5A5,095$0.00—
Jan JohannessenDirFeb 6S2,200$47.91$105K
Jan JohannessenDirFeb 5A5,095$0.00—
Nelson ChanDirFeb 5A5,095$0.00—
Keith CrandellDirFeb 5A5,095$0.00—
Robert ChessDirFeb 5A5,095$0.00—
Katryn BlakeDirFeb 5A5,095$0.00—
Robert F. WernerCAOFeb 4S7,000$45.65$320K
Robert F. WernerCAOFeb 3S175$46.58$8K
Emily M. LeproustCEOFeb 3S5,001$46.58$233K
Paula GreenSVPFeb 3S1,194$46.58$56K
Patrick John FinnCOOFeb 3S2,705$46.58$126K
Dennis ChoOfficerFeb 3S1,099$46.58$51K
Patrick John FinnCOOJan 23S2,390$44.91$107K
Adam LaponisCFOJan 13SPLAN3,000$40.00$120K
Patrick John FinnCOODERIVJan 13MPLAN3,279$0.00—?
Patrick John FinnCOOJan 13SPLAN23,279$40.00$931K
Patrick John FinnCOOJan 13MPLAN3,279$8.82$29K
Adam LaponisCFOJan 9S2,738$35.26$97K
Dennis ChoOfficerDec 22S324$34.56$11K