Dudediligence.

Insmed Incorporated

INSMNASDAQ · Pharmaceutical Preparations
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Insiders

Last 12 months

Sales planned on beside the trades reported on , and whether each names a .

Planned ·

$107.4M

61 notices · 781,197 sh

Jan 3 to Oct 4

Reported ·

$122.0M

152 sales · 0 buys

Oct 2025 to Jun 2026

The two figures cover different periods.

116 of 152 reported sales carry the 10b5-1 box. Together they are 0.34% of the shares on issue.

PLANNED · FORM 144Jan 3 to Oct 4REPORTED · FORM 4Oct 2025 to Jun 2026N2025DJ2026FMAMJJASO2026-09-09: Brennan David R, Form 1442026-08-17: MELVIN SHAROKY, Form 1442026-08-10: Roger Adsett, Form 1442026-08-06: Martina Flammer, Form 1442026-07-23: William Lewis, Form 1442026-07-09: William Lewis, Form 1442026-07-06: Martina Flammer, Form 1442026-06-25: William Lewis, Form 1442026-06-22: Michael Smith, Form 1442026-06-08: William Lewis, Form 1442026-06-05: Martina Flammer, Form 1442026-06-03: Sara Bonstein, Form 1442026-06-03: Martina Flammer, Form 1442026-06-03: Roger Adsett, Form 1442026-06-03: Michael Smith, Form 1442026-06-03: William Lewis, Form 1442026-05-22: Michael Smith, Form 1442026-05-18: William Lewis, Form 1442026-05-14: Martina Flammer, Form 1442026-05-13: Roger Adsett, Form 1442026-05-13: Michael Smith, Form 1442026-05-13: Sara Bonstein, Form 1442026-05-13: Martina Flammer, Form 1442026-05-13: William Lewis, Form 1442026-05-11: Martina Flammer, Form 1442026-05-04: William Lewis, Form 1442026-04-16: William Lewis, Form 1442026-04-06: William Lewis, Form 1442026-04-01: Roger Adsett, Form 1442026-03-30: Michael Smith, Form 1442026-03-19: William Lewis, Form 1442026-03-05: William Lewis, Form 1442026-02-24: Michael Smith, Form 1442026-02-19: William Lewis, Form 1442026-02-09: William Lewis, Form 1442026-02-05: Martina Flammer, Form 1442026-02-03: Roger Adsett, Form 1442026-02-03: Michael Smith, Form 1442026-02-03: William Lewis, Form 1442026-02-03: Martina Flammer, Form 1442026-02-03: Sara Bonstein, Form 1442026-02-02: Martina Flammer, Form 1442026-01-20: William Lewis, Form 1442026-01-12: William Lewis, Form 1442026-01-08: Sara Bonstein, Form 1442026-01-08: Martina Flammer, Form 1442026-01-08: Martina Flammer, Form 1442026-01-08: Roger Adsett, Form 1442026-01-08: Michael Smith, Form 1442026-01-08: William Lewis, Form 1442026-01-07: Roger Adsett, Form 1442026-01-07: Michael Smith, Form 1442026-01-07: William Lewis, Form 1442026-01-07: Sara Bonstein, Form 1442026-01-07: Martina Flammer, Form 1442026-01-06: Sara Bonstein, Form 1442026-01-06: Martina Flammer, Form 1442026-01-06: Roger Adsett, Form 1442026-01-06: Michael Smith, Form 1442026-01-06: William Lewis, Form 1442026-01-05: Martina Flammer, Form 1442026-01-02: Stacey Nicole Schaeffer Orlov, Form 1442025-11-03: Smith Michael Alexander, sold2025-11-11: Flammer Martina M.D., sold2025-11-12: Schaeffer Orlov S Nicole, sold2025-11-14: ANDERSON ELIZABETH M, sold2025-11-17: LEE LEO, sold2025-11-24: ANDERSON ELIZABETH M, sold2025-12-01: Flammer Martina M.D., sold2025-12-04: Lewis William, sold2025-12-05: SHAROKY MELVIN MD, sold2025-12-18: Lewis William, sold2026-01-02: Schaeffer Orlov S Nicole, sold2026-01-05: Flammer Martina M.D., sold2026-01-06: Lewis William, sold2026-01-06: Bonstein Sara, sold2026-01-06: Adsett Roger, sold2026-01-06: Flammer Martina M.D., sold2026-01-06: Smith Michael Alexander, sold2026-01-09: Flammer Martina M.D., sold2026-01-12: Lewis William, sold2026-01-20: Lewis William, sold2026-02-02: Flammer Martina M.D., sold2026-02-03: Lewis William, sold2026-02-03: Bonstein Sara, sold2026-02-03: Adsett Roger, sold2026-02-03: Smith Michael Alexander, sold2026-02-05: Flammer Martina M.D., sold2026-02-09: Lewis William, sold2026-02-19: Lewis William, sold2026-02-24: Smith Michael Alexander, sold2026-03-05: Lewis William, sold2026-03-19: Lewis William, sold2026-03-30: Smith Michael Alexander, sold2026-04-01: Adsett Roger, sold2026-04-06: Lewis William, sold2026-04-16: Lewis William, sold2026-05-04: Lewis William, sold2026-05-11: Flammer Martina M.D., sold2026-05-13: Lewis William, sold2026-05-13: Bonstein Sara, sold2026-05-13: Adsett Roger, sold2026-05-13: Flammer Martina M.D., sold2026-05-13: Smith Michael Alexander, sold2026-05-18: Lewis William, sold2026-05-22: Smith Michael Alexander, sold2026-06-03: Lewis William, sold2026-06-03: Bonstein Sara, sold2026-06-03: Adsett Roger, sold2026-06-03: Flammer Martina M.D., sold2026-06-03: Smith Michael Alexander, sold2026-06-08: Lewis William, sold2026-06-22: Smith Michael Alexander, sold
under a no plan named▼ salesize is dollars

Form 144 notices, newest first

2026-09-09Brennan David R, Director$3,099,729
25,000 shno plan dateForm 4s on file end Jun 23144 ↗
2026-08-17MELVIN SHAROKY, Director$637,637
5,000 shno plan dateForm 4s on file end Jun 23144 ↗
2026-08-10Roger Adsett, Chief Operating Officer$32.0M
239,850 shno plan dateForm 4s on file end Jun 23144 ↗
2026-08-06Martina Flammer, Chief Medical Officer$3,494,755
27,173 shplan 2025-02-27Form 4s on file end Jun 23144 ↗
2026-07-23William Lewis, Chair and CEO$1,134,867
10,700 shplan 2025-09-04Form 4s on file end Jun 23144 ↗
2026-07-09William Lewis, Chair and CEO$1,256,029
10,699 shplan 2025-09-04Form 4s on file end Jun 23144 ↗
2026-07-06Martina Flammer, Chief Medical Officer$1,352,864
12,302 shplan 2025-02-27Form 4s on file end Jun 23144 ↗
2026-06-25William Lewis, Chair and CEO$2,210,653
21,398 shplan 2025-09-04144 ↗
Form 4, 2026-06-26: sold 21,398 at $103.32 Form 4 ↗
2026-06-22Michael Smith, Chief Legal Officer$173,039
1,806 shplan 2025-11-07144 ↗
Form 4, 2026-06-24: sold 1,806 at $95.82 Form 4 ↗
2026-06-08William Lewis, Chair and CEO$612,576
6,515 shplan 2025-09-04144 ↗
Form 4, 2026-06-10: sold 6,515 at $94.03 Form 4 ↗
2026-06-05Martina Flammer, Chief Medical Officer$192,811
1,858 shplan 2025-02-27Form 4s on file end Jun 23144 ↗
2026-06-03Sara Bonstein, Chief Financial Officer$245,857
2,404 shno plan date144 ↗
Form 4, 2026-06-05: sold 2,404 at $102.27 Form 4 ↗
2026-06-03Martina Flammer, Chief Medical Officer$262,424
2,566 sh10b5-1 plan144 ↗
Form 4, 2026-06-05: sold 4,424 at $102.90 Form 4 ↗
2026-06-03Roger Adsett, Chief Operating Officer$242,379
2,370 shno plan date144 ↗
Form 4, 2026-06-05: sold 2,370 at $102.27 Form 4 ↗
2026-06-03Michael Smith, Chief Legal Officer$220,800
2,159 shno plan date144 ↗
Form 4, 2026-06-05: sold 2,159 at $102.27 Form 4 ↗
2026-06-03William Lewis, Chair and CEO$777,763
7,605 shno plan date144 ↗
Form 4, 2026-06-05: sold 7,605 at $102.27 Form 4 ↗
2026-05-22Michael Smith, Chief Legal Officer$666,951
6,149 shplan 2025-11-07144 ↗
Form 4, 2026-05-22: sold 6,149 at $108.47 Form 4 ↗
2026-05-18William Lewis, Chair and CEO$2,718,106
25,564 shplan 2025-09-04144 ↗
Form 4, 2026-05-20: sold 25,564 at $106.33 Form 4 ↗
2026-05-14Martina Flammer, Chief Medical Officer$1,231,599
10,479 shplan 2025-02-27Form 4s on file end Jun 23144 ↗
2026-05-13Roger Adsett, Chief Operating Officer$678,142
5,837 shno plan date144 ↗
Form 4, 2026-05-15: sold 5,837 at $116.18 Form 4 ↗
2026-05-13Michael Smith, Chief Legal Officer$477,383
4,109 shno plan date144 ↗
Form 4, 2026-05-15: sold 4,109 at $116.18 Form 4 ↗
2026-05-13Sara Bonstein, Chief Financial Officer$961,040
8,272 shno plan date144 ↗
Form 4, 2026-05-15: sold 8,272 at $116.18 Form 4 ↗
2026-05-13Martina Flammer, Chief Medical Officer$897,145
7,854 sh10b5-1 plan144 ↗
Form 4, 2026-05-15: sold 18,333 at $116.12 Form 4 ↗
2026-05-13William Lewis, Chair and CEO$1,543,218
13,283 shno plan date144 ↗
Form 4, 2026-05-15: sold 13,283 at $116.18 Form 4 ↗
2026-05-11Martina Flammer, Chief Medical Officer$1,300,105
12,949 shplan 2025-02-27144 ↗
Form 4, 2026-05-13: sold 12,949 at $100.40 Form 4 ↗
2026-05-04William Lewis, Chair and CEO$1,469,481
10,699 shplan 2025-09-04144 ↗
Form 4, 2026-05-06: sold 10,699 at $137.34 Form 4 ↗
2026-04-16William Lewis, Chair and CEO$1,540,292
10,699 shplan 2025-09-04144 ↗
Form 4, 2026-04-17: sold 10,699 at $143.97 Form 4 ↗
2026-04-06William Lewis, Chair and CEO$1,746,319
10,699 shplan 2025-09-04144 ↗
Form 4, 2026-04-08: sold 10,699 at $163.22 Form 4 ↗
2026-04-01Roger Adsett, Chief Operating Officer$14.5M
88,060 shplan 2025-12-03144 ↗
Form 4, 2026-04-03: sold 88,060 at $164.63 Form 4 ↗
2026-03-30Michael Smith, Chief Legal Officer$2,964,929
19,638 shplan 2025-11-07144 ↗
Form 4, 2026-03-31: sold 19,638 at $150.98 Form 4 ↗
2026-03-19William Lewis, Chair and CEO$1,535,514
10,699 shplan 2025-09-04144 ↗
Form 4, 2026-03-20: sold 10,699 at $143.52 Form 4 ↗
2026-03-05William Lewis, Chair and CEO$1,562,311
10,699 shplan 2025-09-04144 ↗
Form 4, 2026-03-05: sold 10,699 at $146.03 Form 4 ↗
2026-02-24Michael Smith, Chief Legal Officer$3,859,153
24,774 shplan 2025-11-07144 ↗
Form 4, 2026-02-25: sold 24,774 at $155.77 Form 4 ↗
2026-02-19William Lewis, Chair and CEO$1,615,250
10,699 shplan 2025-09-04144 ↗
Form 4, 2026-02-23: sold 10,699 at $150.97 Form 4 ↗
2026-02-09William Lewis, Chair and CEO$1,979,774
13,396 shplan 2025-09-04144 ↗
Form 4, 2026-02-11: sold 13,396 at $147.79 Form 4 ↗
2026-02-05Martina Flammer, Chief Medical Officer$132,462
869 shplan 2025-02-27144 ↗
Form 4, 2026-02-06: sold 869 at $152.44 Form 4 ↗
2026-02-03Roger Adsett, Chief Operating Officer$123,526
791 shno plan date144 ↗
Form 4, 2026-02-04: sold 791 at $156.17 Form 4 ↗
2026-02-03Michael Smith, Chief Legal Officer$100,012
640 shno plan date144 ↗
Form 4, 2026-02-04: sold 640 at $156.27 Form 4 ↗
2026-02-03William Lewis, Chair and CEO$470,412
3,009 shno plan date144 ↗
Form 4, 2026-02-04: sold 3,009 at $156.34 Form 4 ↗
2026-02-03Martina Flammer, Chief Medical Officer$123,837
795 shno plan dateno Form 4 on file144 ↗
2026-02-03Sara Bonstein, Chief Financial Officer$116,938
748 shno plan date144 ↗
Form 4, 2026-02-04: sold 748 at $156.34 Form 4 ↗
2026-02-02Martina Flammer, Chief Medical Officer$1,233,964
7,982 shplan 2025-02-27144 ↗
Form 4, 2026-02-04: sold 8,777 at $154.70 Form 4 ↗
2026-01-20William Lewis, Chair and CEO$1,700,420
10,699 shplan 2025-09-04144 ↗
Form 4, 2026-01-22: sold 10,699 at $158.93 Form 4 ↗
2026-01-12William Lewis, Chair and CEO$3,247,325
19,215 shplan 2025-09-04144 ↗
Form 4, 2026-01-13: sold 19,215 at $169.00 Form 4 ↗
2026-01-08Sara Bonstein, Chief Financial Officer$252,023
1,447 shno plan dateno Form 4 on file144 ↗
2026-01-08Martina Flammer, Chief Medical Officer$894,885
5,138 shplan 2025-02-27144 ↗
Form 4, 2026-01-13: sold 1,887 at $186.19 Form 4 ↗
2026-01-08Martina Flammer, Chief Medical Officer$288,674
1,660 shno plan dateno Form 4 on file144 ↗
2026-01-08Roger Adsett, Chief Operating Officer$358,616
2,059 shno plan dateno Form 4 on file144 ↗
2026-01-08Michael Smith, Chief Legal Officer$183,401
1,053 shno plan dateno Form 4 on file144 ↗
2026-01-08William Lewis, Chair and CEO$561,349
3,223 shno plan dateno Form 4 on file144 ↗
2026-01-07Roger Adsett, Chief Operating Officer$140,406
802 shno plan dateno Form 4 on file144 ↗
2026-01-07Michael Smith, Chief Legal Officer$124,124
709 shno plan dateno Form 4 on file144 ↗
2026-01-07William Lewis, Chair and CEO$412,636
2,357 shno plan dateno Form 4 on file144 ↗
2026-01-07Sara Bonstein, Chief Financial Officer$293,935
1,678 shno plan dateno Form 4 on file144 ↗
2026-01-07Martina Flammer, Chief Medical Officer$252,154
1,434 shno plan dateno Form 4 on file144 ↗
2026-01-06Sara Bonstein, Chief Financial Officer$262,941
1,517 shno plan date144 ↗
Form 4, 2026-01-08: sold 4,642 at $174.22 Form 4 ↗
2026-01-06Martina Flammer, Chief Medical Officer$279,927
1,615 sh10b5-1 plan144 ↗
Form 4, 2026-01-08: sold 16,530 at $174.06 Form 4 ↗
2026-01-06Roger Adsett, Chief Operating Officer$247,688
1,429 shno plan date144 ↗
Form 4, 2026-01-08: sold 4,290 at $174.06 Form 4 ↗
2026-01-06Michael Smith, Chief Legal Officer$241,969
1,396 shno plan date144 ↗
Form 4, 2026-01-08: sold 3,158 at $174.00 Form 4 ↗
2026-01-06William Lewis, Chair and CEO$709,959
4,096 shno plan date144 ↗
Form 4, 2026-01-08: sold 9,676 at $174.03 Form 4 ↗
2026-01-05Martina Flammer, Chief Medical Officer$3,577,423
20,873 shplan 2025-02-27144 ↗
Form 4, 2026-01-06: sold 12,303 at $171.38 Form 4 ↗
2026-01-02Stacey Nicole Schaeffer Orlov, Chief People Strategy Officer$15.3M
87,290 shplan 2025-08-29144 ↗
Form 4, 2026-01-06: sold 87,290 at $175.20 Form 4 ↗