Form 4 Tracker
INSMED Inc
INSM

25 insider filings · Latest: Jun 3, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Mar 19, 2026Mar 20 4:05 PMWilliam LewisDirector, Chair and CEO
Sale
10,699$143.52$1.5M301,185(D)

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
May 18, 2026May 20 4:06 PMWilliam LewisDirector, Chair and CEO
Option Exercise
10,699$30.4617,760(D)

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May 11, 2026May 13 4:50 PMMartina M.D. FlammerChief Medical Officer
Option Exercise
12,949$17.070(D)

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May 4, 2026May 6 4:11 PMWilliam LewisDirector, Chair and CEO
Option Exercise
10,699$30.4622,200(D)

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Apr 16, 2026Apr 17 4:43 PMWilliam LewisDirector, Chair and CEO
Option Exercise
10,699$30.4626,640(D)

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Apr 6, 2026Apr 8 4:41 PMWilliam LewisDirector, Chair and CEO
Option Exercise
10,699$30.4631,080(D)

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Apr 1, 2026Apr 3 4:07 PMRoger AdsettChief Operating Officer
Option Exercise
88,060$14.560(D)

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Mar 30, 2026Mar 31 4:13 PMMichael Alexander SmithChief Legal Officer
Option Exercise
19,638$27.8918,561(D)

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Mar 19, 2026Mar 20 4:05 PMWilliam LewisDirector, Chair and CEO
Option Exercise
10,699$30.4635,520(D)

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