Form 4 Tracker
INSMED Inc
INSM

49 insider filings · Latest: Aug 10, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Aug 12, 2025Aug 12 8:37 PMSHAROKY MELVIN MD
Proposed Sale
10,000$121.54$1.2M

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Aug 4, 2025Aug 4 8:37 PMLewis William
Proposed Sale
6,830$109.78$749.8K

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Aug 4, 2025Aug 4 8:24 PMFlammer Martina M.D.
Proposed Sale
8,715$109.47$954.0K

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Jul 21, 2025Jul 21 8:13 PMBonstein Sara
Proposed Sale
58,400$102.64$6.0M

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Jul 15, 2025Jul 15 8:27 PMSmith Michael Alexander
Proposed Sale
933$102.48$95.6K

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Jul 15, 2025Jul 15 8:21 PMLewis William
Proposed Sale
6,830$102.35$699.0K

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Jul 11, 2025Jul 11 8:06 PMSmith Michael Alexander
Proposed Sale
748$96.41$72.1K

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Jul 7, 2025Jul 7 8:38 PMBonstein Sara
Proposed Sale
57,764$95.83$5.5M

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Jul 1, 2025Jul 1 8:47 PMLewis William
Proposed Sale
6,830$98.30$671.4K

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Jun 23, 2025Jun 23 8:11 PMBonstein Sara
Proposed Sale
57,765$101.75$5.9M

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Jun 23, 2025Jun 23 8:11 PMWise John Drayton
Proposed Sale
20,000$104.97$2.1M

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Jun 16, 2025Jun 16 9:01 PMLewis William
Proposed Sale
135,009$100.36$13.5M

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Jun 16, 2025Jun 16 8:08 PMAdsett Roger
Proposed Sale
10,686$98.79$1.1M

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Jun 13, 2025Jun 13 8:04 PMWise John Drayton
Proposed Sale
4,486$98.01$439.7K

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Jun 11, 2025Jun 11 8:41 PMFlammer Martina M.D.
Proposed Sale
19,423$94.47$1.8M

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Jun 11, 2025Jun 11 8:19 PMSchaeffer Orlov S Nicole
Proposed Sale
99,172$93.39$9.3M

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Jun 10, 2025Jun 10 9:24 PMBonstein Sara
Proposed Sale
57,766$89.09$5.1M

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Jun 10, 2025Jun 10 9:18 PMFlammer Martina M.D.
Proposed Sale
25,740$88.61$2.3M

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Jun 10, 2025Jun 10 9:13 PMSchaeffer Orlov S Nicole
Proposed Sale
38,300$88.61$3.4M

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Jun 10, 2025Jun 10 8:24 PMALFRED ALTOMARI
Proposed Sale
25,000$70.68$1.8M

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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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