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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.

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