Biogen Inc. (BIIB) Insider Ownership

Historic Insider Ownership Trends

BIIB's three largest insider shareholders as of April 22, 2026 are Susan H Alexander (Evp Chief Legal Officer, 41.81K shares), Christopher Viehbacher (President And Ceo, 29.92K shares), Michael R Mcdonnell (Evp, Chief Financial Officer, 24.34K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Susan H Alexander Evp Chief Legal Officer 41,807 0 10 Feb, 2026
Christopher Viehbacher President And Ceo 29,924 0 10 Feb, 2026
Michael R Mcdonnell Evp, Chief Financial Officer 24,341 0 12 Feb, 2025
Eric K Rowinsky - 24,339 0 18 Jun, 2025
Ginger Gregory Evp, Human Resources 22,359 0 10 Feb, 2026
Susan H Alexander Evp Chief Legal Officer 0 20,082 07 Nov, 2024
Nicole Murphy Head Of Pharm Ops And Tech 19,611 0 17 Feb, 2026
Alexander J Denner - 15,099 0 17 Jun, 2022
Nancy Leaming - 13,763 0 02 Jul, 2021
Stephen A Sherwin - 13,688 0 18 Jun, 2025
Robin Kramer Chief Financial Officer 11,472 0 10 Feb, 2026
Rachid Izzar Head Of Global Product Strat. 11,011 0 10 Feb, 2026
Jesus B Mantas - 9,758 0 18 Jun, 2025
Brian S Posner - 8,175 0 02 Jul, 2021
Maria C Freire - 6,815 0 18 Jun, 2025
Adam Keeney Head Of Corporate Development 5,881 0 10 Feb, 2026
Susan Langer - 5,129 0 18 Jun, 2025
Alphonse Galdes Evp Pharmaceutical Oper Tech 5,064 0 21 Jan, 2022
Jane Grogan Head Of Research 4,058 0 10 Feb, 2026
Monish D Patolawala - 3,710 0 18 Jun, 2025
Lloyd Minor - 2,370 0 18 Jun, 2025
Sean Godbout Chief Accounting Officer 1,342 0 03 Apr, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
01 Apr, 2026 Sean Godbout Common Stock A 181 $0.00 1,396 D M
01 Apr, 2026 Sean Godbout Common Stock D 54 $183.78 1,342 D F
01 Apr, 2026 Sean Godbout Restricted Stock Unit D 181 $0.00 364 D M
13 Feb, 2026 Robin Kramer Restricted Stock Unit A 8,450 $0.00 8,450 D A
13 Feb, 2026 Christopher Viehbacher Restricted Stock Unit A 38,015 $0.00 38,015 D A
13 Feb, 2026 Ginger Gregory Restricted Stock Unit A 8,025 $0.00 8,025 D A
13 Feb, 2026 Adam Keeney Restricted Stock Unit A 8,025 $0.00 8,025 D A
13 Feb, 2026 Rachid Izzar Restricted Stock Unit A 7,390 $0.00 7,390 D A
12 Feb, 2026 Nicole Murphy Common Stock A 3 $195.04 19,611 D P
13 Feb, 2026 Sean Godbout Restricted Stock Unit A 1,800 $0.00 1,800 D A
13 Feb, 2026 Susan H Alexander Restricted Stock Unit A 8,450 $0.00 8,450 D A
13 Feb, 2026 Jane Grogan Restricted Stock Unit A 8,450 $0.00 8,450 D A
13 Feb, 2026 Nicole Murphy Restricted Stock Unit A 10,560 $0.00 10,560 D A
06 Feb, 2026 Ginger Gregory Common Stock A 1,635 $0.00 19,400 D M
06 Feb, 2026 Adam Keeney Common Stock A 1,802 $0.00 4,186 D M
06 Feb, 2026 Jane Grogan Common Stock A 1,385 $0.00 3,176 D M
06 Feb, 2026 Robin Kramer Common Stock A 789 $0.00 8,801 D M
06 Feb, 2026 Rachid Izzar Common Stock A 2,044 $0.00 8,204 D M
06 Feb, 2026 Sean Godbout Common Stock A 257 $0.00 752 D M
06 Feb, 2026 Christopher Viehbacher Common Stock A 9,008 $0.00 25,451 D M