BIIB
BIOGEN INC.
NASDAQ · Healthcare · Drug Manufacturers - General · US
$250.91
+0.79%0
Insider buys (3m)
0
Insider sells (3m)
$0.00
Net value (3m)
+20.8%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Nov 2, 2026 | Grogan Jane · officer: Head of Research | F-InKind | 345 | $254 |
| Nov 2, 2026 | Grogan Jane · officer: Head of Research | M-Exempt | 695 | $0.00 |
| Oct 5, 2026 | Godbout Sean · officer: Chief Accounting Officer | M-Exempt | 27 | $0.00 |
| Oct 5, 2026 | Godbout Sean · officer: Chief Accounting Officer | A-Award | 985 | $0.00 |
| Oct 5, 2026 | Godbout Sean · officer: Chief Accounting Officer | F-InKind | 8 | $220 |
| Sep 3, 2026 | Parini Michael · officer: Chief Legal Officer | A-Award | 7,405 | $0.00 |
| Aug 5, 2026 | Minor Lloyd · director | Sale | 593 | $203 |
| Jun 11, 2026 | HAWKINS WILLIAM A · director | A-Award | 1,505 | $0.00 |
| Jun 11, 2026 | Pangalos Menelas N · director | M-Exempt | 2,370 | $0.00 |
| Jun 11, 2026 | LANGER SUSAN · director | A-Award | 1,505 | $0.00 |
| Jun 11, 2026 | Minor Lloyd · director | A-Award | 1,505 | $0.00 |
| Jun 11, 2026 | Freire Maria C · director | A-Award | 2,005 | $0.00 |
| Jun 11, 2026 | SHERWIN STEPHEN A · director | A-Award | 1,505 | $0.00 |
| Jun 11, 2026 | Rowinsky Eric K · director | A-Award | 1,505 | $0.00 |
| Jun 11, 2026 | Mantas Jesus B · director | A-Award | 1,505 | $0.00 |
| Jun 11, 2026 | Patolawala Monish D · director | A-Award | 1,505 | $0.00 |
| Jun 11, 2026 | Pangalos Menelas N · director | A-Award | 1,505 | $0.00 |
| May 5, 2026 | Keeney Adam · officer: Head of Corporate Development | M-Exempt | 939 | $0.00 |
| May 5, 2026 | Keeney Adam · officer: Head of Corporate Development | F-InKind | 455 | $187 |
| Apr 3, 2026 | Godbout Sean · officer: Chief Accounting Officer | F-InKind | 54 | $184 |
| Apr 3, 2026 | Godbout Sean · officer: Chief Accounting Officer | M-Exempt | 181 | $0.00 |
| Feb 17, 2026 | ALEXANDER SUSAN H · officer: EVP Chief Legal Officer | A-Award | 8,450 | $0.00 |
| Feb 17, 2026 | Godbout Sean · officer: Chief Accounting Officer | A-Award | 1,800 | $0.00 |
| Feb 17, 2026 | Keeney Adam · officer: Head of Corporate Development | A-Award | 8,025 | $0.00 |
| Feb 17, 2026 | Murphy Nicole · officer: Head of Pharm Ops and Tech | A-Award | 10,560 | $0.00 |
| Feb 17, 2026 | Gregory Ginger · officer: EVP, Human Resources | A-Award | 8,025 | $0.00 |
| Feb 17, 2026 | Kramer Robin · officer: Chief Financial Officer | A-Award | 8,450 | $0.00 |
| Feb 17, 2026 | Grogan Jane · officer: Head of Research | A-Award | 8,450 | $0.00 |
| Feb 17, 2026 | Murphy Nicole · officer: Head of Pharm Ops and Tech | Purchase | 3 | $195 |
| Feb 17, 2026 | Viehbacher Christopher · director, officer: President and CEO | A-Award | 38,015 | $0.00 |
Institutional positioning
13F filings over the trailing two quarters
New 274Increased 833Reduced 637Sold out 85
| Filer | Action | Shares | Filed |
|---|---|---|---|
| FMR LLC | Increased | 18,217,239 | Aug 13, 2026 |
| BlackRock, Inc. | Increased | 15,985,736 | Aug 7, 2026 |
| BLACKROCK, INC. | Increased | 15,974,601 | May 13, 2026 |
| PRIMECAP MANAGEMENT CO/CA/ | Increased | 15,154,606 | Aug 14, 2026 |
| PRIMECAP MANAGEMENT CO/CA/ | Reduced | 14,757,607 | May 11, 2026 |
| FMR LLC | Increased | 12,807,541 | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 9,651,117 | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 9,537,417 | May 15, 2026 |
| STATE STREET CORP | Increased | 7,344,327 | Sep 22, 2026 |
| STATE STREET CORP | Increased | 7,167,922 | May 15, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 6,604,936 | Aug 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 6,531,727 | May 8, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 4,449,295 | Aug 12, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 4,342,602 | May 15, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 3,117,469 | Aug 14, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Nov 2, 2026