Form 4 Tracker
Twist Bioscience Corp
TWST

71 insider filings · Latest: Jun 25, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
May 21, 2026May 26 8:05 PMAdam LaponisChief Financial Officer
Sale
2,019$53.26$107.5K116,675(D)

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May 26, 2026May 26 7:41 PMWERNER ROBERT F.
Proposed Sale
800$62.48$50.0K

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May 26, 2026May 26 1:43 PMStarovasnik Melissa A.
Proposed Sale
500$61.04$30.5K

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May 21, 2026May 21 8:42 PMGreen Paula
Proposed Sale
1,399$53.26$74.5K

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May 21, 2026May 21 8:33 PMLaponis Adam
Proposed Sale
2,019$53.26$107.5K

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May 21, 2026May 21 8:30 PMLeproust Emily M.
Proposed Sale
6,888$53.26$366.8K

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May 21, 2026May 21 8:26 PMCho Dennis
Proposed Sale
1,642$53.26$87.4K

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May 21, 2026May 21 7:54 PMWERNER ROBERT F.
Proposed Sale
688$53.26$36.6K

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May 21, 2026May 21 7:31 PMFinn Patrick John
Proposed Sale
4,160$53.26$221.5K

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May 12, 2026May 14 8:05 PMJan JohannessenDirector
Sale
12,000$56.12$673.4K17,754(D)

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May 8, 2026May 12 8:05 PMRobert F. WernerChief Accounting Officer
Sale
4,961$56.88$282.2K49,674(D)

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May 12, 2026May 12 1:48 PMJOHANNESSEN JAN
Proposed Sale
12,000$56.12$673.4K

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May 8, 2026May 8 4:25 PMWERNER ROBERT F.
Proposed Sale
4,961$56.88$282.2K

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May 4, 2026May 6 8:05 PMDennis ChoSenior Vice President, Chief Legal Officer & Corporate Secretary
Sale
1,962$57.15$112.1K135,941(D)

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May 4, 2026May 6 8:05 PMEmily M. LeproustDirector, Chief Executive Officer
Sale
5,127$57.15$293.0K853,760(D)

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May 4, 2026May 6 8:05 PMPatrick John FinnPresident and COO
Sale
2,844$57.15$162.5K278,964(D)

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May 4, 2026May 6 8:05 PMPaula GreenSVP of Human Resources
Sale
1,116$57.15$63.8K122,988(D)

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May 4, 2026May 6 8:05 PMRobert F. WernerChief Accounting Officer
Sale
164$57.15$9.4K54,635(D)

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May 4, 2026May 4 7:20 PMLeproust Emily M.
Proposed Sale
5,127$57.15$293.0K

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May 4, 2026May 4 7:19 PMGreen Paula
Proposed Sale
1,116$57.15$63.8K

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Jun 15, 2026Jun 17 8:05 PMPaula GreenSVP of Human Resources
Option Exercise
26,137$23.330(D)

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May 28, 2026Jun 1 8:05 PMEmily M. LeproustDirector, Chief Executive Officer
Option Exercise
16,470$8.8275,439(D)

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May 27, 2026May 28 8:05 PMEmily M. LeproustDirector, Chief Executive Officer
Option Exercise
25,017$8.8291,909(D)

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May 26, 2026May 28 8:05 PMEmily M. LeproustDirector, Chief Executive Officer
Option Exercise
24,282$8.82116,926(D)

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May 12, 2026May 14 8:05 PMJan JohannessenDirector
Option Exercise
12,000$14.0010,304(D)

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Apr 22, 2026Apr 23 8:05 PMEmily M. LeproustDirector, Chief Executive Officer
Option Exercise
8,061$8.82141,208(D)

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Apr 21, 2026Apr 23 8:05 PMEmily M. LeproustDirector, Chief Executive Officer
Option Exercise
1,610$8.82149,269(D)

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Mar 17, 2026Mar 19 8:05 PMRobert ChessDirector
Option Exercise
10,000$11.8918,417(D)

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Feb 17, 2026Feb 19 9:05 PMPatrick John FinnPresident and COO
Option Exercise
50,505$26.660(D)

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Feb 13, 2026Feb 17 9:25 PMPatrick John FinnPresident and COO
Option Exercise
1,212$26.6618,052(D)

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Feb 12, 2026Feb 17 9:25 PMPatrick John FinnPresident and COO
Option Exercise
2,500$26.6618,705(D)

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