List of insiders holdings for INSMED INC:
- Shares directly owned by the insider.
- Shares indirectly owned by the insider.
- Total shares owned by the insider (sum of shares directly and indirectly owned).
- Total market value if available.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| # | Insider Holder Name | Report Date Time | Shares Owned Directly Indirectly | Total Shares Owned | Filing |
| 1 | ALLAN GEOFFREY President, CEO and Chairman | 2009-04-02 16:45:44 | 3,771,713 0 | 3,771,713 | Form 4 |
| 2 | FMR LLC Edward C. Johnson 3d 10% Owner | 2022-02-09 09:19:58 | 3,557,538 0 | 3,557,538 | Form 13G |
| 3 | Ayer Capital Management LP ACM Capital Partners LLC Ayer Capital Partners LLC Venkatesan Jay 10% Owner | 2012-12-06 18:10:45 | 1,541,469 0 | 1,541,469 | Form 13G |
| 4 | Glover Steve C President Follow-on Biologics | 2009-04-02 16:48:34 | 1,204,494 0 | 1,204,494 | Form 4 |
| 5 | Gurreri Nicholas Lee Senior VP, Commercial Ops | 2011-02-01 16:14:26 | 899,000 0 | 899,000 | Form 4 |
| 6 | Farrar Doug Vice President, ITP | 2009-04-02 16:47:56 | 866,484 0 | 866,484 | Form 4 |
| 7 | Lewis William Chair and CEO | 2026-03-20 16:05:20 | 386,778 233,924 | 620,702 | Form 4 |
| 8 | SOMMER ANDREAS Chief Scientific Officer | 2004-03-15 14:28:10 | 449,101 0 | 449,101 | Form 3 |
| 9 | Kelley Glen L VP, REGULATORY AFFAIRS | 2009-04-10 16:31:39 | 334,712 0 | 334,712 | Form 3 |
| 10 | ENGELSEN STEINAR J Director | 2021-11-03 16:26:44 | 320,802 0 | 320,802 | Form 4 |
| 11 | SHAROKY MELVIN MD Director | 2026-03-05 16:15:10 | 242,776 26,820 | 269,596 | Form 4 |
| 12 | CROOKE GRAHAM K Director | 2010-06-11 08:02:11 | 228,404 0 | 228,404 | Form 4 |
| 13 | CONDON KENNETH G Director | 2010-06-11 08:01:01 | 168,504 0 | 168,504 | Form 4 |
| 14 | Lanfear Dennis M Director | 2010-06-11 08:04:29 | 168,404 0 | 168,404 | Form 4 |
| 15 | Pellizzari Christine A Chief Legal Officer | 2021-05-18 16:42:50 | 149,985 0 | 149,985 | Form 4 |
| 16 | TULLY KEVIN P Executive VP & CFO | 2011-12-23 10:16:23 | 146,800 0 | 146,800 | Form 4 |
| 17 | Drechsler Andrew T Chief Financial Officer | 2017-03-03 16:17:05 | 135,000 0 | 135,000 | Form 4 |
| 18 | Wise John Drayton Chief Commercial Officer | 2025-02-07 17:11:09 | 133,015 0 | 133,015 | Form 4 |
| 19 | Brennan David R Director | 2026-02-25 16:04:19 | 60,933 60,000 | 120,933 | Form 4 |
| 20 | TOMBESI PAOLO Chief Financial Officer | 2019-01-07 16:08:29 | 120,280 0 | 120,280 | Form 4 |
| 21 | Adsett Roger Chief Operating Officer | 2026-02-04 16:20:07 | 106,810 0 | 106,810 | Form 4 |
| 22 | MCGIRR DAVID W J Director | 2026-02-11 16:43:08 | 44,323 53,400 | 97,723 | Form 4 |
| 23 | SORIANO JOHN Chief Compliance Officer | 2021-09-09 16:10:41 | 87,250 0 | 87,250 | Form 4 |
| 24 | Flammer Martina M.D. Chief Medical Officer | 2026-02-06 16:18:50 | 83,243 0 | 83,243 | Form 4 |
| 25 | Bonstein Sara Chief Financial Officer | 2026-02-04 16:19:42 | 79,758 0 | 79,758 | Form 4 |
| 26 | Smith Michael Alexander Chief Legal Officer | 2026-03-31 16:13:26 | 79,065 0 | 79,065 | Form 4 |
| 27 | LaBella Nicholas A. Jr. Chief Scientific Officer | 2011-12-23 10:19:12 | 78,200 0 | 78,200 | Form 4 |
| 28 | Desjardins Clarissa Director | 2025-05-22 17:20:35 | 67,007 3,025 | 70,032 | Form 4 |
| 29 | ALTOMARI ALFRED Director | 2024-05-15 16:14:44 | 69,495 0 | 69,495 | Form 4 |
| 30 | Schaeffer Orlov S Nicole Chief People Strategy Officer | 2026-01-06 16:03:21 | 69,354 0 | 69,354 | Form 4 |
| 31 | WHITCOMB RANDALL W Director | 2015-03-10 16:07:19 | 69,188 0 | 69,188 | Form 4 |
| 32 | Quigley Mark Vice President, Quality | 2015-05-13 16:08:20 | 68,594 0 | 68,594 | Form 4 |
| 33 | HAYDEN DONALD J JR Director | 2019-04-11 16:06:02 | 65,911 0 | 65,911 | Form 4 |
| 34 | SCHAFER CAROL Director | 2025-05-19 16:57:41 | 63,317 0 | 63,317 | Form 4 |
| 35 | ANDERSON ELIZABETH M Director | 2025-11-26 16:31:41 | 58,729 0 | 58,729 | Form 4 |
| 36 | LEE LEO Director | 2025-11-18 16:21:46 | 54,677 0 | 54,677 | Form 4 |
| 37 | Drucker Andrea Holtzman SVP, Gen. Counsel & Corp Sec. | 2013-06-05 19:12:45 | 45,000 0 | 45,000 | Form 4 |
| 38 | GUNN RONALD D Executive VP and COO | 2007-02-14 13:54:10 | 43,461 0 | 43,461 | Form 5 |
| 39 | GOLL JOHN Chief Accounting Officer | 2020-01-07 18:11:19 | 42,426 0 | 42,426 | Form 4 |
| 40 | GUPTA RENU Executive Vice President & CMO | 2014-02-04 16:17:37 | 37,014 0 | 37,014 | Form 4 |
| 41 | SULLIVAN EUGENE JEFFREY Chief Med. & Scientific Ofc. | 2017-05-19 16:34:20 | 33,300 0 | 33,300 | Form 4 |
| 42 | Pauls Matthew Chief Commercial Officer | 2014-06-04 17:22:13 | 30,000 0 | 30,000 | Form 4 |
| 43 | Young Philip J CBO and EVP, Commercial Ops | 2007-02-14 13:52:33 | 26,732 0 | 26,732 | Form 5 |
| 44 | POTTER MYRTLE S Director | 2018-05-17 16:15:56 | 25,510 0 | 25,510 | Form 4 |
| 45 | Berry Peggy Vice President, Regulatory | 2015-02-27 16:09:46 | 25,000 0 | 25,000 | Form 4 |
| 46 | Duncan Michael Principal Financial Officer | 2005-12-12 21:04:20 | 25,000 0 | 25,000 | Form 4 |
| 47 | Kollender Richard S Director | 2013-11-01 16:12:53 | 24,598 0 | 24,598 | Form 4 |
| 48 | Keuer Thomas A Senior VP, Operations (sub) | 2006-02-14 19:58:57 | 22,615 0 | 22,615 | Form 5 |
| 49 | STRECK PAUL Chief Medical Officer | 2018-08-09 16:13:22 | 15,996 0 | 15,996 | Form 4 |
| 50 | Whitten Timothy President & CEO | 2012-06-04 16:29:06 | 10,000 0 | 10,000 | Form 4 |