List of insiders holdings for BIOGEN 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 | MULLEN JAMES C CEO & President | 2010-06-10 19:54:59 | 1,297,633 75,000 | 1,372,633 | Form 4 |
| 2 | HANNA NABIL EVP Discovery Research | 2004-04-05 19:24:30 | 710,095 0 | 710,095 | Form 4 |
| 3 | DENNER ALEXANDER J Director | 2022-06-17 16:29:01 | 15,099 643,000 | 658,099 | Form 4 |
| 4 | ROHN WILLIAM R Chief Operating Officer | 2004-11-19 14:09:11 | 151,226 383,388 | 534,614 | Form 4 |
| 5 | SHARP PHILIP A Director | 2009-06-05 11:07:10 | 476,253 0 | 476,253 | Form 4 |
| 6 | RASTETTER WILLIAM H Executive Chairman | 2005-07-01 11:34:23 | 50,677 376,229 | 426,906 | Form 4 |
| 7 | GREGOIRE SYLVIE L EVP, Bus. Dev & Program Mgmt. | 2003-11-14 20:42:33 | 366,544 0 | 366,544 | Form 4 |
| 8 | Vounatsos Michel Chief Executive Officer | 2022-02-23 16:21:11 | 136,590 0 | 136,590 | Form 4 |
| 9 | Arner Raymond G Acting General Counsel | 2005-06-27 20:08:33 | 115,306 0 | 115,306 | Form 3 |
| 10 | Cook Anne Marie Acting General Counsel | 2005-03-18 09:41:15 | 112,882 0 | 112,882 | Form 3 |
| 11 | HASLER HANS PETER Chief Operating Officer | 2009-02-26 17:31:20 | 106,826 0 | 106,826 | Form 4 |
| 12 | PICKETT CECIL B President, R & D | 2009-10-05 14:15:31 | 88,732 0 | 88,732 | Form 4 |
| 13 | BUCKNUM THOMAS J EVP and General Counsel | 2005-02-22 15:29:20 | 75,500 0 | 75,500 | Form 4 |
| 14 | Hasnain Faheem EVP, Oncology/Rheumatology SBU | 2008-07-10 14:08:08 | 75,079 0 | 75,079 | Form 4 |
| 15 | MATSUI CONNIE EVP, Corp. Strategy and Comm. | 2007-02-14 14:40:14 | 33,837 40,766 | 74,603 | Form 4 |
| 16 | Gilman Michael EVP - Research | 2005-02-22 15:15:00 | 70,000 0 | 70,000 | Form 4 |
| 17 | Kowolenko Michael SVP, Pharm Ops & Technology | 2007-07-27 10:57:54 | 69,828 0 | 69,828 | Form 4 |
| 18 | RODRIGUEZ EDWARD VP and Controller | 2003-09-03 18:22:51 | 61,357 7,100 | 68,457 | Form 4 |
| 19 | SCANGOS GEORGE A Chief Executive Officer | 2016-07-22 17:03:49 | 54,779 10,756 | 65,535 | Form 4 |
| 20 | BELZER ALAN Director | 2007-05-30 17:18:41 | 41,500 11,500 | 53,000 | Form 4 |
| 21 | DUNN JOHN MICHAEL EVP, New Ventures | 2009-02-26 17:28:47 | 40,822 0 | 40,822 | Form 4 |
| 22 | Cox John EVP Pharmaceutical Oper & Tech | 2016-04-05 17:04:17 | 39,045 0 | 39,045 | Form 4 |
| 23 | PAPADOPOULOS STELIOS Director | 2022-06-17 17:13:38 | 10,095 28,206 | 38,301 | Form 4 |
| 24 | Viehbacher Christopher President and CEO | 2026-02-17 20:18:48 | 38,015 0 | 38,015 | Form 4 |
| 25 | CAPELLO JEFFREY D EVP & Chief Financial Officer | 2020-02-14 18:27:32 | 32,617 0 | 32,617 | Form 4 |
| 26 | DORSA CAROLINE Director | 2025-06-18 16:34:49 | 31,002 0 | 31,002 | Form 4 |
| 27 | Murphy Nicole Head of Pharm Ops and Tech | 2026-02-17 20:16:40 | 30,171 0 | 30,171 | Form 4 |
| 28 | Guindo Chirfi Head of Glob Prod Strat & Com | 2022-02-23 16:15:56 | 29,551 0 | 29,551 | Form 4 |
| 29 | Hamm Robert A Chief Operating Officer | 2010-04-26 16:07:41 | 27,212 0 | 27,212 | Form 4 |
| 30 | Rowinsky Eric K Director | 2026-06-11 17:46:22 | 25,844 0 | 25,844 | Form 4 |
| 31 | DiPietro Kenneth EVP Human Resources | 2017-03-02 17:12:03 | 25,254 0 | 25,254 | Form 4 |
| 32 | Karaboutis Adriana EVP, Tech, Bus. Sol & Corp Aff | 2017-03-02 17:16:06 | 24,644 0 | 24,644 | Form 4 |
| 33 | MCDONNELL MICHAEL R EVP, Chief Financial Officer | 2025-02-12 17:46:02 | 24,341 0 | 24,341 | Form 4 |
| 34 | SCHNEIER CRAIG ERIC EVP, HR, Public Affairs & Comm | 2011-03-03 15:17:02 | 22,701 460 | 23,161 | Form 4 |
| 35 | WIGGINS MARK C EVP Corp. and Bus. Dev. | 2008-09-29 15:21:36 | 22,780 0 | 22,780 | Form 4 |
| 36 | ADELMAN BURT A EVP, Portfolio Strategy | 2008-02-14 17:43:53 | 21,737 0 | 21,737 | Form 5 |
| 37 | PANGIA ROBERT W Director | 2021-02-09 16:14:20 | 4,632 16,000 | 20,632 | Form 5 |
| 38 | KELLOGG PETER N EVP, Finance and CFO | 2007-03-22 09:38:32 | 18,966 0 | 18,966 | Form 4 |
| 39 | LYTTON MICHAEL EVP Corporate & Business Devel | 2010-03-04 13:27:57 | 18,869 0 | 18,869 | Form 4 |
| 40 | YOUNG WILLIAM Director | 2014-01-09 16:24:37 | 18,509 0 | 18,509 | Form 4 |
| 41 | Karp Daniel EVP, Corporate Development | 2020-02-14 18:36:19 | 16,434 0 | 16,434 | Form 4 |
| 42 | Holtzman Steven H EVP Corporate Development | 2016-02-25 16:59:28 | 16,399 0 | 16,399 | Form 4 |
| 43 | SHERWIN STEPHEN A Director | 2026-06-11 17:47:54 | 15,193 0 | 15,193 | Form 4 |
| 44 | Mulligan Richard Director | 2022-06-17 17:03:54 | 15,099 0 | 15,099 | Form 4 |
| 45 | Granata Francesco EVP Global Commercial Operatio | 2012-02-03 14:53:26 | 13,925 0 | 13,925 | Form 4 |
| 46 | LEAMING NANCY Director | 2021-07-02 17:29:46 | 13,763 0 | 13,763 | Form 4 |
| 47 | Pawlicki Raymond SVP, Chief Information Officer | 2013-11-25 14:11:02 | 13,190 0 | 13,190 | Form 4 |
| 48 | DEKKERS MARIJN E Director | 2009-06-05 11:06:13 | 12,570 0 | 12,570 | Form 4 |
| 49 | SCHENK LYNN Director | 2019-06-20 17:59:16 | 9,032 3,100 | 12,132 | Form 4 |
| 50 | WILLIAMS DOUGLAS E EVP Research & Development | 2015-06-22 16:15:02 | 11,817 0 | 11,817 | Form 4 |
| 51 | BEST LAWRENCE C Director | 2008-06-23 16:08:18 | 11,300 0 | 11,300 | Form 4 |
| 52 | GLASSBERG ALAN Director | 2008-06-23 16:10:20 | 11,300 0 | 11,300 | Form 4 |
| 53 | Mantas Jesus B Director | 2026-06-11 17:44:45 | 11,263 0 | 11,263 | Form 4 |
| 54 | Clancy Paul J Executive VP and CFO | 2017-04-27 16:23:52 | 10,813 0 | 10,813 | Form 4 |
| 55 | MacLean Michael F SVP, Chief Accounting Officer | 2010-10-04 16:14:35 | 10,681 0 | 10,681 | Form 4 |
| 56 | Singhal Priya Head of Development | 2026-02-17 20:17:51 | 10,560 0 | 10,560 | Form 4 |
| 57 | HAWKINS WILLIAM A Director | 2026-06-11 17:50:34 | 10,365 0 | 10,365 | Form 4 |
| 58 | Sandrock Alfred Head of Research & Development | 2021-06-09 19:05:57 | 10,169 0 | 10,169 | Form 4 |
| 59 | ROSS BRUCE Director | 2010-06-10 17:06:00 | 9,900 0 | 9,900 | Form 4 |
| 60 | Ehlers Michael D EVP, Research and Development | 2019-06-04 16:56:28 | 9,401 0 | 9,401 | Form 4 |
| 61 | Freire Maria C Director | 2026-06-11 17:09:24 | 8,820 0 | 8,820 | Form 4 |
| 62 | Kramer Robin Chief Financial Officer | 2026-02-17 20:14:49 | 8,450 0 | 8,450 | Form 4 |
| 63 | ALEXANDER SUSAN H EVP Chief Legal Officer | 2026-02-17 20:05:49 | 8,450 0 | 8,450 | Form 4 |
| 64 | Grogan Jane Head of Research | 2026-02-17 20:10:17 | 8,450 0 | 8,450 | Form 4 |
| 65 | Posner Brian S Director | 2023-01-27 18:31:54 | 8,025 0 | 8,025 | Form 5 |
| 66 | Gregory Ginger EVP, Human Resources | 2026-02-17 20:09:09 | 8,025 0 | 8,025 | Form 4 |
| 67 | McKenzie Paul EVP Pharmaceutical Oper & Tech | 2019-03-05 16:17:14 | 7,515 0 | 7,515 | Form 4 |
| 68 | Parini Michael Chief Legal Officer | 2026-09-03 16:14:24 | 7,405 0 | 7,405 | Form 4 |
| 69 | Izzar Rachid Head of Global Product Strat. | 2026-02-17 20:11:16 | 7,390 0 | 7,390 | Form 4 |
| 70 | LANGER SUSAN Director | 2026-06-11 17:34:50 | 6,634 0 | 6,634 | Form 4 |
| 71 | Keeney Adam Head of Corporate Development | 2026-05-05 16:11:57 | 6,365 0 | 6,365 | Form 4 |
| 72 | Kingsley Stuart A EVP, Global Comm. Operations | 2015-02-25 18:19:26 | 6,220 0 | 6,220 | Form 4 |
| 73 | Galdes Alphonse EVP Pharmaceutical Oper & Tech | 2022-01-21 16:50:34 | 5,064 969.37 | 6,033 | Form 4 |
| 74 | Patolawala Monish D Director | 2026-06-11 17:32:31 | 5,215 0 | 5,215 | Form 4 |
| 75 | Kress Jean-Paul EVP Pres Int'l & Global Hd GTO | 2017-07-05 19:18:43 | 4,660 0 | 4,660 | Form 4 |
| 76 | Gagnon Robert E. Vice President, Finance | 2012-03-01 15:23:23 | 3,999 0 | 3,999 | Form 4 |
| 77 | Pangalos Menelas N Director | 2026-06-11 17:21:32 | 3,875 0 | 3,875 | Form 4 |
| 78 | Artavanis-Tsakonas Spyridon EVP, Chief Scientific Officer | 2016-04-05 17:06:19 | 3,150 0 | 3,150 | Form 4 |
| 79 | Minor Lloyd Director | 2026-08-05 16:03:20 | 2,689 0 | 2,689 | Form 4 |
| 80 | Koppel Adam EVP, Strategy and Bus. Dev. | 2016-06-07 16:09:07 | 2,402 0 | 2,402 | Form 4 |
| 81 | JONES WILLIAM D Director | 2022-06-17 17:00:46 | 2,145 0 | 2,145 | Form 4 |
| 82 | Godbout Sean Chief Accounting Officer | 2026-04-03 16:05:27 | 1,706 0 | 1,706 | Form 4 |
| 83 | GOOD MARY L Director | 2007-05-30 17:24:40 | 1,250 0 | 1,250 | Form 4 |
| 84 | KELLER THOMAS F Director | 2008-03-07 17:02:55 | 0 1,250 | 1,250 | Form 4/A |
| 85 | COVINO GREGORY F VP, Chief Accounting Officer | 2018-03-05 16:35:11 | 531 0 | 531 | Form 4 |