Form 4 Tracker
INSMED Inc
INSM

49 insider filings · Latest: Aug 10, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Jan 2, 2026Jan 2 9:29 PMStacey Nicole Schaeffer Orlov
Proposed Sale
87,290$175.11$15.3M

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Dec 18, 2025Dec 18 9:45 PMWilliam Lewis
Proposed Sale
10,699$166.97$1.8M

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Dec 5, 2025Dec 5 10:39 PMMELVIN SHAROKY
Proposed Sale
20,000$205.00$4.1M

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Dec 4, 2025Dec 4 10:10 PMWilliam Lewis
Proposed Sale
10,699$205.59$2.2M

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Dec 1, 2025Dec 1 9:08 PMMartina Flammer
Proposed Sale
8,895$206.95$1.8M

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Nov 24, 2025Nov 24 8:07 PMANDERSON ELIZABETH M
Proposed Sale
5,000$204.00$1.0M

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Nov 17, 2025Nov 17 10:29 PMLeo Lee
Proposed Sale
75,000$193.22$14.5M

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Nov 13, 2025Nov 13 5:53 PMANDERSON ELIZABETH M
Proposed Sale
10,000$194.00$1.9M

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Nov 12, 2025Nov 12 9:57 PMStacey Nicole Schaeffer Orlov
Proposed Sale
30,000$194.51$5.8M

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Nov 11, 2025Nov 12 1:28 PMMartina Flammer
Proposed Sale
31,226$189.64$5.9M

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Nov 3, 2025Nov 3 10:01 PMMichael A Smith
Proposed Sale
27,130$183.75$5.0M

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Sep 12, 2025Sep 12 9:03 PMSchaeffer Orlov S Nicole
Proposed Sale
76,520$145.42$11.1M

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Sep 12, 2025Sep 12 7:55 PMSHAROKY MELVIN MD
Proposed Sale
10,000$145.00$1.4M

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Sep 2, 2025Sep 2 8:49 PMFlammer Martina M.D.
Proposed Sale
186,648$144.31$26.9M

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Sep 2, 2025Sep 2 8:41 PMSmith Michael Alexander
Proposed Sale
24,272$143.85$3.5M

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Aug 20, 2025Aug 20 4:53 PMSHAROKY MELVIN MD
Proposed Sale
10,000$129.46$1.3M

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Aug 19, 2025Aug 19 9:19 PMAdsett Roger
Proposed Sale
25,000$127.55$3.2M

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Aug 18, 2025Aug 18 8:58 PMLewis William
Proposed Sale
6,865$128.37$881.2K

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Aug 14, 2025Aug 14 8:10 PMSchaeffer Orlov S Nicole
Proposed Sale
10,000$127.31$1.3M

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Aug 13, 2025Aug 13 8:22 PMALFRED ALTOMARI
Proposed Sale
13,600$121.64$1.7M

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Aug 10, 2026Aug 12 9:04 PMRoger AdsettChief Operating Officer
Option Exercise
239,850$30.460(D)

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Aug 6, 2026Aug 7 8:39 PMMartina M.D. FlammerChief Medical Officer
Option Exercise
27,173$25.8335,580(D)

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Jul 23, 2026Jul 24 9:02 PMWilliam LewisDirector, Chair and CEO
Option Exercise
10,700$30.460(D)

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Jul 9, 2026Jul 10 8:02 PMWilliam LewisDirector, Chair and CEO
Option Exercise
10,699$30.464,440(D)

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Jul 6, 2026Jul 8 8:03 PMMartina M.D. FlammerChief Medical Officer
Option Exercise
12,302$29.134,358(D)

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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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