Form 4 Tracker
INSMED Inc
INSM

44 insider filings · Latest: Jun 25, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Jun 2, 2025Jun 2 8:35 PMLewis William
Proposed Sale
6,830$71.28$486.8K

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May 30, 2025May 30 8:08 PMSmith Michael Alexander
Proposed Sale
26,327$69.63$1.8M

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May 29, 2025May 29 8:22 PMWise John Drayton
Proposed Sale
6,691$66.60$445.6K

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May 28, 2025May 28 8:14 PMWise John Drayton
Proposed Sale
3,431$68.00$233.3K

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May 20, 2025May 20 9:03 PMWise John Drayton
Proposed Sale
7,000$67.38$471.7K

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May 20, 2025May 20 8:54 PMLewis William
Proposed Sale
27,887$67.63$1.9M

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May 15, 2025May 15 9:01 PMFlammer Martina M.D.
Proposed Sale
11,724$65.47$767.6K

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May 14, 2025May 14 10:23 PMWise John Drayton
Proposed Sale
401$65.61$26.3K

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May 14, 2025May 14 9:53 PMSmith Michael Alexander
Proposed Sale
409$65.61$26.8K

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May 14, 2025May 14 9:49 PMSchaeffer Orlov S Nicole
Proposed Sale
1,236$65.61$81.1K

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May 14, 2025May 14 9:45 PMLewis William
Proposed Sale
3,771$65.61$247.4K

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May 14, 2025May 14 9:39 PMFlammer Martina M.D.
Proposed Sale
1,744$65.61$114.4K

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May 14, 2025May 14 9:35 PMBonstein Sara
Proposed Sale
1,634$65.61$107.2K

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May 14, 2025May 14 9:30 PMAdsett Roger
Proposed Sale
1,925$65.61$126.3K

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May 13, 2025May 13 9:44 PMLewis William
Proposed Sale
17,442$67.81$1.2M

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May 13, 2025May 13 9:35 PMBonstein Sara
Proposed Sale
8,870$67.81$601.5K

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May 13, 2025May 13 9:32 PMFlammer Martina M.D.
Proposed Sale
8,408$67.81$570.1K

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May 13, 2025May 13 9:29 PMAdsett Roger
Proposed Sale
7,482$67.81$507.4K

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May 13, 2025May 13 9:18 PMSchaeffer Orlov S Nicole
Proposed Sale
4,999$67.81$339.0K

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May 13, 2025May 13 9:12 PMWise John Drayton
Proposed Sale
4,610$67.81$312.6K

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Jun 25, 2026Jun 26 8:03 PMWilliam LewisDirector, Chair and CEO
Option Exercise
21,398$30.468,880(D)

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Jun 23, 2026Jun 24 8:15 PMSamuele ButeraSVP, GM, Global Respiratory
Grant/Award
12,570$102.1512,570(D)

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May 18, 2026May 20 8:06 PMWilliam LewisDirector, Chair and CEO
Option Exercise
10,699$30.4617,760(D)

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May 11, 2026May 13 8:50 PMMartina M.D. FlammerChief Medical Officer
Option Exercise
12,949$17.070(D)

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May 4, 2026May 6 8:11 PMWilliam LewisDirector, Chair and CEO
Option Exercise
10,699$30.4622,200(D)

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Apr 16, 2026Apr 17 8:43 PMWilliam LewisDirector, Chair and CEO
Option Exercise
10,699$30.4626,640(D)

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

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Apr 1, 2026Apr 3 8:07 PMRoger AdsettChief Operating Officer
Option Exercise
88,060$14.560(D)

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Mar 30, 2026Mar 31 8:13 PMMichael Alexander SmithChief Legal Officer
Option Exercise
19,638$27.8918,561(D)

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Mar 19, 2026Mar 20 8:05 PMWilliam LewisDirector, Chair and CEO
Option Exercise
10,699$30.4635,520(D)

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Mar 5, 2026Mar 5 9:16 PMWilliam LewisDirector, Chair and CEO
Option Exercise
10,699$30.4639,960(D)

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Feb 24, 2026Feb 25 9:04 PMMichael Alexander SmithChief Legal Officer
Option Exercise
20,248$17.0714,282(D)

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Feb 19, 2026Feb 23 9:34 PMWilliam LewisDirector, Chair and CEO
Option Exercise
10,699$30.4644,400(D)

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Feb 9, 2026Feb 11 9:42 PMWilliam LewisDirector, Chair and CEO
Option Exercise
10,699$30.4668,850(D)

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Feb 2, 2026Feb 4 9:15 PMMartina M.D. FlammerChief Medical Officer
Option Exercise
7,982$65.7223,948(D)

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Jan 20, 2026Jan 22 9:28 PMWilliam LewisDirector, Chair and CEO
Option Exercise
10,699$30.4653,280(D)

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