Skip to main content

Twist Bioscience Corp

TWST
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001581280

In the last 90 days, Twist Bioscience Corp insiders filed 0 open-market purchases and 30 sales; 337 institutions reported holding it in 13F filings for Q2 2026, worth $7.85B in total; ARK Invest is the only superinvestor holding it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Twist Bioscience Corp insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
30 filings
8 insiders, $99.7M in total
Insiders trading
8
Net value
−$99.7M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Twist Bioscience Corp, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Twist Bioscience Corp
NameTitleLast reported holdingLast filingFilings, past year
Leproust Emily M.Chief Executive Officer613,699Sep 25, 202630
Cho DennisSee Remarks73,303Sep 23, 202626
Green PaulaSVP of Human Resources116,720Sep 23, 202623
Werner Robert F.Chief Accounting Officer44,399Sep 10, 202619
Finn Patrick JohnPresident and COO210,802Aug 25, 202621
Laponis AdamChief Financial Officer108,633Aug 25, 202617
Blake KatrynDirector17,208Aug 14, 20262
Chess RobertDirector21,084Aug 11, 20264
Starovasnik Melissa A.Director22,222Jun 1, 20265
Johannessen JanDirector17,754May 14, 20263
Crandell KeithDirector27,571Feb 9, 20261
Ragusa Robert PDirector28,983Feb 9, 20261
Chan Nelson CDirector33,251Feb 9, 20261
Banyai WilliamSee Remark345,188May 7, 20240
Mai XiaoyingDirector31,057Feb 9, 20240
Thorburn James MChief Financial Officer86,334Jan 4, 20240
Yankton Kevin BruceChief Accounting Officer9,115May 19, 20230
Barthelemy NicolasDirector23,021Nov 23, 20220
Weiss PatrickChief Operating Officer47,401Apr 5, 20220

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
May 7, 2024 (view filing)May 34 daysGreen PaulaSVP of Human ResourcesSSale−910$37.13−$33.8K−1.0%91.5K after
May 7, 2024 (view filing)May 34 daysCho DennisSee RemarksSSale−568$37.13−$21.1K−0.7%80.4K after
May 7, 2024 (view filing)May 34 daysBanyai WilliamSee RemarkSSale−798$37.13−$29.6K−0.2%345.2K after
May 28, 2024 (view filing)May 235 daysWerner Robert F.Chief Accounting OfficerSSale−3.36K$42.32−$142.2K−7.7%40.2K after
Jun 10, 2024 (view filing)Jun 64 daysWerner Robert F.Chief Accounting OfficerSSale−242$51.33−$12.4K−0.6%39.9K after
Jun 10, 2024 (view filing)Jun 64 daysLeproust Emily M.Chief Executive OfficerSSale−2.41K$51.33−$123.6K−0.5%507.6K after
Jun 10, 2024 (view filing)Jun 64 daysGreen PaulaSVP of Human ResourcesSSale−918$51.33−$47.1K−1.0%90.6K after
Jun 10, 2024 (view filing)Jun 64 daysCho DennisSee RemarksSSale−276$51.33−$14.2K−0.3%80.2K after
Jun 18, 2024 (view filing)Jun 144 daysCho DennisSee RemarksSSale−95$51.04−$4.85K−0.1%80.1K after
Jun 24, 2024 (view filing)Jun 204 daysCho DennisSee RemarksSSale−234$49.41−$11.6K−0.3%79.8K after
Jun 24, 2024 (view filing)Jun 204 daysGreen PaulaSVP of Human ResourcesSSale−297$49.41−$14.7K−0.3%90.3K after
Jun 24, 2024 (view filing)Jun 204 daysLeproust Emily M.Chief Executive OfficerSSale−1.73K$49.41−$85.6K−0.3%505.8K after
Jul 5, 2024 (view filing)Jul 23 daysFinn Patrick JohnPresident and COOSSale−476$48.00−$22.8K−0.3%173.4K after
Jul 5, 2024 (view filing)Jul 23 daysGreen PaulaSVP of Human ResourcesSSale−322$48.00−$15.5K−0.4%90.0K after
Jul 5, 2024 (view filing)Jul 23 daysLeproust Emily M.Chief Executive OfficerSSale−1.11K$48.00−$53.5K−0.2%504.7K after
Jul 5, 2024 (view filing)Jul 23 daysCho DennisSee RemarksSSale−126$48.00−$6.05K−0.2%79.7K after
Jul 11, 2024 (view filing)Jul 92 daysLaponis AdamChief Financial OfficerSSale−842$48.91−$41.2K−1.1%73.6K after
Jul 25, 2024 (view filing)Jul 232 daysFinn Patrick JohnPresident and COOSSale−2.21K$56.63−$125.0K−1.3%171.2K after
Aug 7, 2024 (view filing)Aug 52 daysWerner Robert F.Chief Accounting OfficerSSale−168$39.93−$6.71K−0.4%39.8K after
Aug 7, 2024 (view filing)Aug 52 daysLeproust Emily M.Chief Executive OfficerSSale−5.14K$39.93−$205.2K−1.0%499.6K after
Aug 7, 2024 (view filing)Aug 52 daysGreen PaulaSVP of Human ResourcesSSale−1.14K$39.93−$45.4K−1.3%88.8K after
Aug 7, 2024 (view filing)Aug 52 daysFinn Patrick JohnPresident and COOSSale−2.88K$39.93−$115.2K−1.7%168.3K after
Aug 7, 2024 (view filing)Aug 52 daysCho DennisSee RemarksSSale−709$39.93−$28.3K−0.9%79.0K after
Aug 27, 2024 (view filing)Aug 234 daysWerner Robert F.Chief Accounting OfficerSSale−813$43.14−$35.1K−2.0%39.0K after
Sep 10, 2024 (view filing)Sep 64 daysLeproust Emily M.Chief Executive OfficerSSale−2.34K$39.16−$91.6K−0.5%497.3K after
Sep 10, 2024 (view filing)Sep 64 daysWerner Robert F.Chief Accounting OfficerSSale−240$39.16−$9.40K−0.6%38.7K after
Sep 10, 2024 (view filing)Sep 64 daysGreen PaulaSVP of Human ResourcesSSale−912$39.16−$35.7K−1.0%88.2K after
Sep 10, 2024 (view filing)Sep 64 daysCho DennisSee RemarksSSale−275$39.16−$10.8K−0.3%78.7K after
Sep 18, 2024 (view filing)Sep 162 daysCho DennisSee RemarksSSale−94$46.42−$4.36K−0.1%78.6K after
Sep 24, 2024 (view filing)Sep 204 daysLeproust Emily M.Chief Executive OfficerSSale−1.73K$46.94−$81.2K−0.3%495.5K after
Sep 24, 2024 (view filing)Sep 204 daysGreen PaulaSVP of Human ResourcesSSale−297$46.94−$13.9K−0.3%87.9K after
Sep 24, 2024 (view filing)Sep 204 daysCho DennisSee RemarksSSale−234$46.94−$11.0K−0.3%78.4K after
Oct 4, 2024 (view filing)Oct 22 daysCho DennisSee RemarksSSale−3.10K$43.21−$134.1K−4.0%75.3K after
Oct 4, 2024 (view filing)Oct 22 daysLeproust Emily M.Chief Executive OfficerSSale−13.6K$43.21−$587.9K−2.7%481.9K after
Oct 4, 2024 (view filing)Oct 22 daysGreen PaulaSVP of Human ResourcesSSale−3.31K$43.21−$143.0K−3.8%84.6K after
Oct 4, 2024 (view filing)Oct 22 daysFinn Patrick JohnPresident and COOSSale−6.87K$43.21−$296.6K−4.1%161.7K after
Oct 11, 2024 (view filing)Oct 92 daysLaponis AdamChief Financial OfficerSSale−856$41.81−$35.8K−1.2%73.4K after
Oct 25, 2024 (view filing)Oct 232 daysFinn Patrick JohnPresident and COOSSale−2.26K$43.09−$97.4K−1.4%159.5K after
Nov 6, 2024 (view filing)Nov 42 daysWerner Robert F.Chief Accounting OfficerSSale−156$41.56−$6.48K−0.3%47.1K after
Nov 6, 2024 (view filing)Nov 42 daysFinn Patrick JohnPresident and COOSSale−2.68K$41.56−$111.4K−1.1%237.6K after
Nov 6, 2024 (view filing)Nov 42 daysLeproust Emily M.Chief Executive OfficerSSale−4.84K$41.56−$201.2K−0.8%603.9K after
Nov 6, 2024 (view filing)Nov 42 daysCho DennisSee RemarksSSale−659$41.56−$27.4K−0.7%94.5K after
Nov 6, 2024 (view filing)Nov 42 daysGreen PaulaSVP of Human ResourcesSSale−1.06K$41.56−$43.9K−0.9%121.0K after
Nov 13, 2024 (view filing)Nov 112 daysChess RobertDirectorSSale−3.60K$47.26−$170.1K−14.3%21.6K after2 lots10b5-1
Nov 13, 2024 (view filing)Nov 112 daysLeproust Emily M.Chief Executive OfficerSSale−7.97K$48.00−$382.5K−1.4%581.6K after
Nov 13, 2024 (view filing)Nov 112 daysGreen PaulaSVP of Human ResourcesSSale−1.35K$48.00−$64.7K−1.2%114.1K after
Nov 13, 2024 (view filing)Nov 112 daysFinn Patrick JohnPresident and COOSSale−10.3K$48.00−$496.3K−4.5%221.1K after
Nov 13, 2024 (view filing)Nov 112 daysCho DennisSee RemarksSSale−1.51K$48.00−$72.3K−1.6%91.2K after
Nov 15, 2024 (view filing)Nov 69 daysFinn Patrick JohnPresident and COOSSale−6.24K$44.61−$278.3K−2.6%231.4K afterAmended
Nov 15, 2024 (view filing)Nov 69 daysGreen PaulaSVP of Human ResourcesSSale−5.52K$44.61−$246.2K−4.6%115.5K afterAmended