Form 4 Tracker
INSMED Inc
INSM

49 insider filings · Latest: Aug 10, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Jun 5, 2025Jun 5 8:38 PMSmith Michael Alexander
Proposed Sale
1,879$73.47$138.1K

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Jun 4, 2025Jun 4 4:33 PMMCGIRR DAVID W J
Proposed Sale
3,000$73.27$219.8K

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Jun 3, 2025Jun 3 9:32 PMBonstein Sara
Proposed Sale
1,579$71.50$112.9K

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Jun 3, 2025Jun 3 9:24 PMFlammer Martina M.D.
Proposed Sale
1,686$71.50$120.5K

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Jun 3, 2025Jun 3 9:15 PMAdsett Roger
Proposed Sale
1,860$71.50$133.0K

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Jun 3, 2025Jun 3 9:09 PMSmith Michael Alexander
Proposed Sale
1,448$71.50$103.5K

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Jun 3, 2025Jun 3 9:00 PMWise John Drayton
Proposed Sale
1,860$71.50$133.0K

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Jun 3, 2025Jun 3 8:43 PMSchaeffer Orlov S Nicole
Proposed Sale
1,642$71.50$117.4K

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Jun 3, 2025Jun 3 8:37 PMLewis William
Proposed Sale
5,472$71.50$391.2K

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Jun 3, 2025Jun 3 4:50 PMMCGIRR DAVID W J
Proposed Sale
3,250$71.30$231.7K

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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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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Jan 20, 2026Jan 22 9:28 PMWilliam LewisDirector, Chair and CEO
Option Exercise
10,699$30.4653,280(D)

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