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Who

Emily M. Leproust

Chief Executive Officer

Company insider

Files Form 4 as: Chief Executive Officer, Twist Bioscience; Director, GeneDx Holdings.

In numbers

Trades disclosed
506
Buys
0
Sells
110
Bought
$0
Sold
$265.6M
Companies
2
Companies where not an officer
1
First trade
19 Nov 2018
Last trade
5 Oct 2026
Last filed
7 Oct 2026

Companies traded

Where they are an officer
TWST Twist BioscienceDirector, Officer · Genomics & Gene Editing · last 5 Oct 20260 buys · 110 sells
Everywhere else they filed: board seats, 10% stakes, other companies
WGS GeneDx HoldingsDirector · Providers & Facilities · last 18 Jun 20260 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
60Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
5 Oct 2026filed 7 Oct 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$369K1,840 at $200.44filing
5 Oct 2026filed 7 Oct 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$97K481 at $201.26filing
5 Oct 2026filed 7 Oct 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$206K1,017 at $202.32filing
5 Oct 2026filed 7 Oct 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$88K432 at $203.61filing
5 Oct 2026filed 7 Oct 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$59K290 at $204.80filing
5 Oct 2026filed 7 Oct 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$61K297 at $205.78filing
5 Oct 2026filed 7 Oct 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$30K146 at $206.84filing
5 Oct 2026filed 7 Oct 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$9,33645 at $207.46filing
2 Oct 2026filed 5 Oct 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$8.6M45,736 at $188.88filing
1 Oct 2026filed 5 Oct 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$131K655 at $200.00filing
24 Sep 2026filed 25 Sep 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$435K2,485 at $175.23filing
24 Sep 2026filed 25 Sep 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$15K83 at $184.60filing
24 Sep 2026filed 25 Sep 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$167K945 at $176.39filing
24 Sep 2026filed 25 Sep 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$29K164 at $177.17filing
24 Sep 2026filed 25 Sep 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$59K330 at $178.67filing
24 Sep 2026filed 25 Sep 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$26K143 at $179.93filing
24 Sep 2026filed 25 Sep 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$93K515 at $180.39filing
24 Sep 2026filed 25 Sep 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$3,81021 at $181.45filing
24 Sep 2026filed 25 Sep 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$2,92016 at $182.50filing
24 Sep 2026filed 25 Sep 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$92K501 at $183.76filing

The newest 500 lines are listed; the numbers count every line.

News

Twist Bioscience (NASDAQ:TWST) versus Quanterix (NASDAQ:QTRX) Financial AnalysisTWST · tickerreport.com · 15 Oct 2026

0 headlines in the last 90 days name Emily M. Leproust; 1 article from the last 14 days about the 1 company they traded most, at most three about any one of them.

Sectors

Health Care110

Buys in green, sells in red, by the company’s sector.

Related people

Adam LaponisChief Financial Officer · Chief Financial Officer at Twist Bioscience, filing Form 4 there in the last year
Dennis ChoOfficer · Officer at Twist Bioscience, filing Form 4 there in the last year
Robert F. WernerChief Accounting Officer · Chief Accounting Officer at Twist Bioscience, filing Form 4 there in the last year
Paula GreenSVP of Human Resources · SVP of Human Resources at Twist Bioscience, filing Form 4 there in the last year
Patrick John FinnPresident and COO · President and COO at Twist Bioscience, filing Form 4 there in the last year
Katryn BlakeDirector · Also traded TWST in the last 90 days
Robert ChessDirector · Also traded TWST in the last 90 days