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TWST — Twist Bioscience Corp

Materials · Biological Products, (No Diagnostic Substances) · Nasdaq

CIK 0001581280 · FYE 0930 · All Form 4 filings on EDGAR ↗

6Insiders filing
13Transactions
+$0Reported buys
−$10.5MReported sells
1Cluster events

Window in data: 2026-08-19 → 2026-08-25 · Data as of 2026-08-28

Cluster membership

WeekWindowTierDirInsidersTotal value
2026-W342026-08-19 → 2026-08-21ELEVATED− sell6$4.1M

Insiders

InsiderRoleTxnsReported value
Leproust Emily M.Chief Executive Officer6$7.2M
Cho DennisSee Remarks2$2.1M
Finn Patrick JohnPresident and COO1$563k
Laponis AdamChief Financial Officer1$273k
WERNER ROBERT F.Chief Accounting Officer2$213k
Green PaulaSVP of Human Resources1$189k

Transaction history

Filing dateTrade dateTickerInsiderTypeSharesPriceValueCluster
2026-08-272026-08-25TWSTLeproust Emily M. Chief Executive Officer 10b5-1S12,648$150.56−$1.9M
2026-08-272026-08-25TWSTLeproust Emily M. Chief Executive Officer 10b5-1S12,236$151.35−$1.9M
2026-08-272026-08-25TWSTLeproust Emily M. Chief Executive Officer 10b5-1S6,412$152.75−$979k
2026-08-272026-08-25TWSTLeproust Emily M. Chief Executive Officer 10b5-1S9,181$153.93−$1.4M
2026-08-272026-08-25TWSTLeproust Emily M. Chief Executive Officer 10b5-1S1,093$154.45−$169k
2026-08-252026-08-24TWSTWERNER ROBERT F. Chief Accounting OfficerS854$140.77−$120k
2026-08-252026-08-21TWSTCho Dennis See RemarksS1,598$139.07−$222k Cluster clu-0cb8f84d5479
2026-08-252026-08-21TWSTFinn Patrick John President and COOS4,046$139.07−$563k Cluster clu-0cb8f84d5479
2026-08-252026-08-21TWSTGreen Paula SVP of Human ResourcesS1,360$139.07−$189k Cluster clu-0cb8f84d5479
2026-08-252026-08-21TWSTLaponis Adam Chief Financial OfficerS1,965$139.07−$273k Cluster clu-0cb8f84d5479
2026-08-252026-08-21TWSTLeproust Emily M. Chief Executive OfficerS6,639$139.07−$923k Cluster clu-0cb8f84d5479
2026-08-252026-08-21TWSTWERNER ROBERT F. Chief Accounting OfficerS669$139.07−$93k Cluster clu-0cb8f84d5479
2026-08-212026-08-19TWSTCho Dennis See Remarks 10b5-1S14,205$129.75−$1.8M Cluster clu-0cb8f84d5479