Wednesday, October 28, 2026
Data from SEC filings, checked daily
Public filings, plainly told
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Insider tradingForm 4

Twist Bioscience Corp (TWST) Insider Trading

31 open-market trades reported since Aug 14, 2026: 0 purchases worth $0 and 31 sales worth $101.4M.

By insider

InsiderRoleBuysBoughtSellsSoldLatest
Patrick John FinnCOO0$04$14.9MOct 27, 2026
Adam LaponisCFO0$03$2.18MOct 13, 2026
Emily M. LeproustCEO0$010$77.2MOct 7, 2026
Paula GreenSVP0$04$2.25MOct 5, 2026
Dennis ChoSee Remarks0$05$3.97MOct 5, 2026
Robert F. WernerCAO0$04$522KOct 5, 2026
Katryn BlakeDirector0$01$275KAug 14, 2026

All trades

TWST insider trades
FiledTradedInsiderRoleTypeSharesPrice ($)ValueHolding3 mo. afterFiling
Oct 27Oct 23Patrick John FinnCOOCOO▼ SELL2,245134.59$302K−1.2%Form 4 ↗
Oct 13Oct 9Adam LaponisCFOCFO▼ SELL2,462156.31$385K−2.4%Form 4 ↗
Oct 7Oct 5Emily M. LeproustCEOCEO▼ SELL10b5-14,548202.15$919K−0.8%Form 4 ↗
Oct 5Oct 2Emily M. LeproustCEOCEO▼ SELL10b5-145,736188.88$8.64M−7.5%Form 4 ↗
Oct 5Oct 2Patrick John FinnCOOCOO▼ SELL25,714188.88$4.86M−12%Form 4 ↗
Oct 5Oct 2Paula GreenSVPSVP▼ SELL10,088188.88$1.91M−8.6%Form 4 ↗
Oct 5Oct 2Dennis ChoSee RemarksSee Remarks▼ SELL9,514188.88$1.80M−13%Form 4 ↗
Oct 5Oct 2Adam LaponisCFOCFO▼ SELL8,057188.88$1.52M−7.4%Form 4 ↗
Oct 5Oct 2Robert F. WernerCAOCAO▼ SELL1,482188.88$280K−3.3%Form 4 ↗
Oct 5Oct 1Emily M. LeproustCEOCEO▼ SELL10b5-1655200.00$131K−0.1%Form 4 ↗
Sep 25Sep 24Emily M. LeproustCEOCEO▼ SELL10b5-15,203177.38$923K−0.8%Form 4 ↗
Sep 23Sep 21Emily M. LeproustCEOCEO▼ SELL1,687165.49$279K−0.3%Form 4 ↗
Sep 23Sep 21Dennis ChoSee RemarksSee Remarks▼ SELL348165.49$58K−0.5%Form 4 ↗
Sep 23Sep 21Paula GreenSVPSVP▼ SELL294165.49$49K−0.3%Form 4 ↗
Sep 21Sep 17Emily M. LeproustCEOCEO▼ SELL10b5-1356,546157.99$56.3M−35%Form 4 ↗
Sep 10Sep 8Emily M. LeproustCEOCEO▼ SELL2,302122.62$282K−0.3%Form 4 ↗
Sep 10Sep 8Paula GreenSVPSVP▼ SELL907122.62$111K−0.8%Form 4 ↗
Sep 10Sep 8Dennis ChoSee RemarksSee Remarks▼ SELL412122.62$51K−0.6%Form 4 ↗
Sep 10Sep 8Robert F. WernerCAOCAO▼ SELL238122.63$29K−0.5%Form 4 ↗
Aug 27Aug 25Emily M. LeproustCEOCEO▼ SELL10b5-141,570151.98$6.32M−5.1%Form 4 ↗
Aug 25Aug 21Emily M. LeproustCEOCEO▼ SELL6,639139.07$923K−0.8%Form 4 ↗
Aug 25Aug 21Patrick John FinnCOOCOO▼ SELL4,046139.07$563K−1.9%Form 4 ↗
Aug 25Aug 21Adam LaponisCFOCFO▼ SELL1,965139.07$273K−1.8%Form 4 ↗
Aug 25Aug 21Dennis ChoSee RemarksSee Remarks▼ SELL1,598139.07$222K−2.1%Form 4 ↗
Aug 25Aug 21Paula GreenSVPSVP▼ SELL1,360139.07$189K−1.1%Form 4 ↗
Aug 25Aug 24Robert F. WernerCAOCAO▼ SELL854140.77$120K−1.9%Form 4 ↗
Aug 25Aug 21Robert F. WernerCAOCAO▼ SELL669139.07$93K−1.4%Form 4 ↗
Aug 21Aug 19Dennis ChoSee RemarksSee Remarks▼ SELL10b5-114,205129.75$1.84M−16%Form 4 ↗
Aug 20Aug 18Patrick John FinnCOOCOO▼ SELL10b5-178,355117.64$9.22M−27%Form 4 ↗
Aug 14Aug 12Emily M. LeproustCEOCEO▼ SELL10b5-119,952125.08$2.50M−2.4%Form 4 ↗
Aug 14Aug 12Katryn BlakeDirectorDirector▼ SELL2,240122.88$275K−12%Form 4 ↗
Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings