BIOGEN INC. (BIIB) - Insider Holders & Insider Ownership

List of insiders holdings for BIOGEN INC.:
  1. Shares directly owned by the insider.
  2. Shares indirectly owned by the insider.
  3. Total shares owned by the insider (sum of shares directly and indirectly owned).
  4. Total market value if available.
  5. 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
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#Insider Holder NameReport
Date Time		Shares Owned
Directly
Indirectly		Total
Shares Owned		Filing
1MULLEN JAMES C
CEO & President		2010-06-10 19:54:591,297,633
75,000		1,372,633Form 4
2HANNA NABIL
EVP Discovery Research		2004-04-05 19:24:30710,095
0		710,095Form 4
3DENNER ALEXANDER J
Director		2022-06-17 16:29:0115,099
643,000		658,099Form 4
4ROHN WILLIAM R
Chief Operating Officer		2004-11-19 14:09:11151,226
383,388		534,614Form 4
5SHARP PHILIP A
Director		2009-06-05 11:07:10476,253
0		476,253Form 4
6RASTETTER WILLIAM H
Executive Chairman		2005-07-01 11:34:2350,677
376,229		426,906Form 4
7GREGOIRE SYLVIE L
EVP, Bus. Dev & Program Mgmt.		2003-11-14 20:42:33366,544
0		366,544Form 4
8Vounatsos Michel
Chief Executive Officer		2022-02-23 16:21:11136,590
0		136,590Form 4
9Arner Raymond G
Acting General Counsel		2005-06-27 20:08:33115,306
0		115,306Form 3
10Cook Anne Marie
Acting General Counsel		2005-03-18 09:41:15112,882
0		112,882Form 3
11HASLER HANS PETER
Chief Operating Officer		2009-02-26 17:31:20106,826
0		106,826Form 4
12PICKETT CECIL B
President, R & D		2009-10-05 14:15:3188,732
0		88,732Form 4
13BUCKNUM THOMAS J
EVP and General Counsel		2005-02-22 15:29:2075,500
0		75,500Form 4
14Hasnain Faheem
EVP, Oncology/Rheumatology SBU		2008-07-10 14:08:0875,079
0		75,079Form 4
15MATSUI CONNIE
EVP, Corp. Strategy and Comm.		2007-02-14 14:40:1433,837
40,766		74,603Form 4
16Gilman Michael
EVP - Research		2005-02-22 15:15:0070,000
0		70,000Form 4
17Kowolenko Michael
SVP, Pharm Ops & Technology		2007-07-27 10:57:5469,828
0		69,828Form 4
18RODRIGUEZ EDWARD
VP and Controller		2003-09-03 18:22:5161,357
7,100		68,457Form 4
19SCANGOS GEORGE A
Chief Executive Officer		2016-07-22 17:03:4954,779
10,756		65,535Form 4
20BELZER ALAN
Director		2007-05-30 17:18:4141,500
11,500		53,000Form 4
21DUNN JOHN MICHAEL
EVP, New Ventures		2009-02-26 17:28:4740,822
0		40,822Form 4
22Cox John
EVP Pharmaceutical Oper & Tech		2016-04-05 17:04:1739,045
0		39,045Form 4
23PAPADOPOULOS STELIOS
Director		2022-06-17 17:13:3810,095
28,206		38,301Form 4
24Viehbacher Christopher
President and CEO		2026-02-17 20:18:4838,015
0		38,015Form 4
25CAPELLO JEFFREY D
EVP & Chief Financial Officer		2020-02-14 18:27:3232,617
0		32,617Form 4
26DORSA CAROLINE
Director		2025-06-18 16:34:4931,002
0		31,002Form 4
27Murphy Nicole
Head of Pharm Ops and Tech		2026-02-17 20:16:4030,171
0		30,171Form 4
28Guindo Chirfi
Head of Glob Prod Strat & Com		2022-02-23 16:15:5629,551
0		29,551Form 4
29Hamm Robert A
Chief Operating Officer		2010-04-26 16:07:4127,212
0		27,212Form 4
30DiPietro Kenneth
EVP Human Resources		2017-03-02 17:12:0325,254
0		25,254Form 4
31Karaboutis Adriana
EVP, Tech, Bus. Sol & Corp Aff		2017-03-02 17:16:0624,644
0		24,644Form 4
32MCDONNELL MICHAEL R
EVP, Chief Financial Officer		2025-02-12 17:46:0224,341
0		24,341Form 4
33Rowinsky Eric K
Director		2025-06-18 16:44:1524,339
0		24,339Form 4
34SCHNEIER CRAIG ERIC
EVP, HR, Public Affairs & Comm		2011-03-03 15:17:0222,701
460		23,161Form 4
35WIGGINS MARK C
EVP Corp. and Bus. Dev.		2008-09-29 15:21:3622,780
0		22,780Form 4
36ADELMAN BURT A
EVP, Portfolio Strategy		2008-02-14 17:43:5321,737
0		21,737Form 5
37PANGIA ROBERT W
Director		2021-02-09 16:14:204,632
16,000		20,632Form 5
38KELLOGG PETER N
EVP, Finance and CFO		2007-03-22 09:38:3218,966
0		18,966Form 4
39LYTTON MICHAEL
EVP Corporate & Business Devel		2010-03-04 13:27:5718,869
0		18,869Form 4
40YOUNG WILLIAM
Director		2014-01-09 16:24:3718,509
0		18,509Form 4
41Karp Daniel
EVP, Corporate Development		2020-02-14 18:36:1916,434
0		16,434Form 4
42Holtzman Steven H
EVP Corporate Development		2016-02-25 16:59:2816,399
0		16,399Form 4
43Mulligan Richard
Director		2022-06-17 17:03:5415,099
0		15,099Form 4
44Granata Francesco
EVP Global Commercial Operatio		2012-02-03 14:53:2613,925
0		13,925Form 4
45LEAMING NANCY
Director		2021-07-02 17:29:4613,763
0		13,763Form 4
46SHERWIN STEPHEN A
Director		2025-06-18 16:42:3713,688
0		13,688Form 4
47Pawlicki Raymond
SVP, Chief Information Officer		2013-11-25 14:11:0213,190
0		13,190Form 4
48DEKKERS MARIJN E
Director		2009-06-05 11:06:1312,570
0		12,570Form 4
49SCHENK LYNN
Director		2019-06-20 17:59:169,032
3,100		12,132Form 4
50WILLIAMS DOUGLAS E
EVP Research & Development		2015-06-22 16:15:0211,817
0		11,817Form 4
51GLASSBERG ALAN
Director		2008-06-23 16:10:2011,300
0		11,300Form 4
52BEST LAWRENCE C
Director		2008-06-23 16:08:1811,300
0		11,300Form 4
53Clancy Paul J
Executive VP and CFO		2017-04-27 16:23:5210,813
0		10,813Form 4
54MacLean Michael F
SVP, Chief Accounting Officer		2010-10-04 16:14:3510,681
0		10,681Form 4
55Singhal Priya
Head of Development		2026-02-17 20:17:5110,560
0		10,560Form 4
56Sandrock Alfred
Head of Research & Development		2021-06-09 19:05:5710,169
0		10,169Form 4
57ROSS BRUCE
Director		2010-06-10 17:06:009,900
0		9,900Form 4
58Mantas Jesus B
Director		2025-06-18 16:47:429,758
0		9,758Form 4
59Ehlers Michael D
EVP, Research and Development		2019-06-04 16:56:289,401
0		9,401Form 4
60HAWKINS WILLIAM A
Director		2025-06-18 16:46:558,860
0		8,860Form 4
61Kramer Robin
Chief Financial Officer		2026-02-17 20:14:498,450
0		8,450Form 4
62Grogan Jane
Head of Research		2026-02-17 20:10:178,450
0		8,450Form 4
63ALEXANDER SUSAN H
EVP Chief Legal Officer		2026-02-17 20:05:498,450
0		8,450Form 4
64Keeney Adam
Head of Corporate Development		2026-02-17 20:12:098,025
0		8,025Form 4
65Posner Brian S
Director		2023-01-27 18:31:548,025
0		8,025Form 5
66Gregory Ginger
EVP, Human Resources		2026-02-17 20:09:098,025
0		8,025Form 4
67McKenzie Paul
EVP Pharmaceutical Oper & Tech		2019-03-05 16:17:147,515
0		7,515Form 4
68Izzar Rachid
Head of Global Product Strat.		2026-02-17 20:11:167,390
0		7,390Form 4
69Freire Maria C
Director		2025-06-18 16:45:116,815
0		6,815Form 4
70Kingsley Stuart A
EVP, Global Comm. Operations		2015-02-25 18:19:266,220
0		6,220Form 4
71Galdes Alphonse
EVP Pharmaceutical Oper & Tech		2022-01-21 16:50:345,064
969.37		6,033Form 4
72LANGER SUSAN
Director		2025-06-18 16:38:005,129
0		5,129Form 4
73Kress Jean-Paul
EVP Pres Int'l & Global Hd GTO		2017-07-05 19:18:434,660
0		4,660Form 4
74Gagnon Robert E.
Vice President, Finance		2012-03-01 15:23:233,999
0		3,999Form 4
75Patolawala Monish D
Director		2025-06-18 16:53:063,710
0		3,710Form 4
76Artavanis-Tsakonas Spyridon
EVP, Chief Scientific Officer		2016-04-05 17:06:193,150
0		3,150Form 4
77Koppel Adam
EVP, Strategy and Bus. Dev.		2016-06-07 16:09:072,402
0		2,402Form 4
78Minor Lloyd
Director		2025-06-18 16:54:062,370
0		2,370Form 4
79Pangalos Menelas N
Director		2025-06-18 17:05:172,370
0		2,370Form 4
80JONES WILLIAM D
Director		2022-06-17 17:00:462,145
0		2,145Form 4
81Godbout Sean
Chief Accounting Officer		2026-04-03 16:05:271,706
0		1,706Form 4
82KELLER THOMAS F
Director		2008-03-07 17:02:550
1,250		1,250Form 4/A
83GOOD MARY L
Director		2007-05-30 17:24:401,250
0		1,250Form 4
84COVINO GREGORY F
VP, Chief Accounting Officer		2018-03-05 16:35:11531
0		531Form 4