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Who

Robert F. Werner

Chief Accounting Officer

Company insider

Files Form 4 as: Chief Accounting Officer, Twist Bioscience; Chief Accounting Officer, Invitae.

In numbers

Trades disclosed
99
Buys
0
Sells
56
Bought
$0
Sold
$4.2M
Companies
2
Companies where not an officer
0
First trade
5 Jun 2020
Last trade
2 Oct 2026
Last filed
5 Oct 2026

Companies traded

Where they are an officer
TWST Twist BioscienceOfficer · Genomics & Gene Editing · last 2 Oct 20260 buys · 44 sells
InvitaeOfficer · last 16 May 20230 buys · 12 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
40Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
2 Oct 2026filed 5 Oct 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$280K1,482 at $188.88filing
8 Sep 2026filed 10 Sep 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$29K238 at $122.62filing
8 Sep 2026filed 10 Sep 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$29K238 at $122.62filing
24 Aug 2026filed 25 Aug 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$120K854 at $140.77filing
24 Aug 2026filed 25 Aug 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$120K854 at $140.77filing
21 Aug 2026filed 25 Aug 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$93K669 at $139.07filing
21 Aug 2026filed 25 Aug 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$93K669 at $139.07filing
3 Aug 2026filed 5 Aug 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$14K167 at $85.32filing
3 Aug 2026filed 5 Aug 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$14K167 at $85.32filing
8 Jun 2026filed 10 Jun 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$16K232 at $69.84filing
8 Jun 2026filed 10 Jun 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$78K1,127 at $69.07filing
8 Jun 2026filed 10 Jun 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Code G—500 at $0.00filing
8 Jun 2026filed 10 Jun 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$16K232 at $69.84filing
8 Jun 2026filed 10 Jun 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$78K1,127 at $69.07filing
8 Jun 2026filed 10 Jun 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Code G—500 at $0.00filing
26 May 2026filed 28 May 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$50K800 at $62.48filing
26 May 2026filed 28 May 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$50K800 at $62.48filing
21 May 2026filed 26 May 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$37K688 at $53.26filing
21 May 2026filed 26 May 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$37K688 at $53.26filing
8 May 2026filed 12 May 2026TWST Twist BioscienceGenomics & Gene EditingSEC FORM 4 Sold$282K4,961 at $56.88filing

Sectors

Health Care44
Not placed12

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
Emily M. LeproustChief Executive Officer · Chief Executive 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
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