BIIB NASDAQ
Biogen Inc.
1W: +5.4%
1M: +2.9%
3M: +5.7%
YTD: +12.0%
1Y: +49.5%
3Y: -33.7%
5Y: -26.1%
$199.10
+6.48 (+3.36%)
Weekly Expected Move ±4.9%
$176
$186
$195
$205
$214
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🏦 Institutional Activity
Latest: Q1 20261,125
Institutions Holding
+26 vs prior
75.5%
Ownership
-5.66%
129
New
367
Increased
455
Reduced
204
Closed
👔 Insider Trades
25 records| Date | Name | Title | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-05-01 | Keeney Adam | officer: head of corporate development | F-Tax Withholding | 455 | $187.06 | $85K | Filing |
| 2026-02-12 | Murphy Nicole | officer: head of pharm ops and tech | P-Purchase | 3 | $195.03 | $585 | Filing |
| 2026-02-09 | Singhal Priya | officer: head of development | S-Sale | 2,660 | $199.83 | $532K | Filing |
| 2026-02-06 | Izzar Rachid | officer: head of global product strat. | F-Tax Withholding | 775 | $201.18 | $156K | Filing |
| 2026-02-06 | Godbout Sean | officer: chief accounting officer | F-Tax Withholding | 103 | $201.18 | $21K | Filing |
| 2026-02-06 | Godbout Sean | officer: chief accounting officer | F-Tax Withholding | 180 | $201.18 | $36K | Filing |
| 2026-02-06 | Gregory Ginger | officer: evp, human resources | F-Tax Withholding | 791 | $201.18 | $159K | Filing |
| 2026-02-06 | Gregory Ginger | officer: evp, human resources | F-Tax Withholding | 666 | $201.18 | $134K | Filing |
| 2026-02-06 | Gregory Ginger | officer: evp, human resources | F-Tax Withholding | 1,132 | $201.18 | $228K | Filing |
| 2026-02-06 | Grogan Jane | officer: head of research | F-Tax Withholding | 584 | $201.18 | $117K | Filing |
| 2026-02-06 | Izzar Rachid | officer: head of global product strat. | F-Tax Withholding | 805 | $201.18 | $162K | Filing |
| 2026-02-06 | Izzar Rachid | officer: head of global product strat. | F-Tax Withholding | 458 | $201.18 | $92K | Filing |
| 2026-02-06 | ALEXANDER SUSAN H | officer: evp chief legal officer | F-Tax Withholding | 1,514 | $201.18 | $305K | Filing |
| 2026-02-06 | Keeney Adam | officer: head of corporate development | F-Tax Withholding | 589 | $201.18 | $118K | Filing |
| 2026-02-06 | Kramer Robin | officer: chief financial officer | F-Tax Withholding | 273 | $201.18 | $55K | Filing |
| 2026-02-06 | Kramer Robin | officer: chief financial officer | F-Tax Withholding | 207 | $201.18 | $42K | Filing |
| 2026-02-06 | Kramer Robin | officer: chief financial officer | F-Tax Withholding | 1,063 | $201.18 | $214K | Filing |
| 2026-02-06 | Murphy Nicole | officer: head of pharm ops and tech | F-Tax Withholding | 1,017 | $201.18 | $205K | Filing |
| 2026-02-06 | Murphy Nicole | officer: head of pharm ops and tech | F-Tax Withholding | 914 | $201.18 | $184K | Filing |
| 2026-02-06 | Murphy Nicole | officer: head of pharm ops and tech | F-Tax Withholding | 1,408 | $201.18 | $283K | Filing |
| 2026-02-06 | Singhal Priya | officer: head of development | F-Tax Withholding | 1,056 | $201.18 | $212K | Filing |
| 2026-02-06 | Singhal Priya | officer: head of development | F-Tax Withholding | 1,412 | $201.18 | $284K | Filing |
| 2026-02-06 | Godbout Sean | officer: chief accounting officer | F-Tax Withholding | 76 | $201.18 | $15K | Filing |
| 2026-02-06 | ALEXANDER SUSAN H | officer: evp chief legal officer | F-Tax Withholding | 931 | $201.18 | $187K | Filing |
| 2026-02-06 | ALEXANDER SUSAN H | officer: evp chief legal officer | F-Tax Withholding | 1,059 | $201.18 | $213K | Filing |
🏛️ Congressional Trades
25 records| Date | Politician | Chamber | Type | Amount | Filing |
|---|---|---|---|---|---|
| 2026-01-30 | Gilbert Cisneros | House | Buy | $1,001 - $15,000 | Filing |
| 2025-05-15 | Rob Bresnahan | House | Buy | $1,001 - $15,000 | Filing |
| 2025-04-08 | Rob Bresnahan | House | Sell | $1,001 - $15,000 | Filing |
| 2025-02-25 | Rob Bresnahan | House | Buy | $1,001 - $15,000 | Filing |
| 2024-11-15 | Ro Khanna | House | Buy | $1,001 - $15,000 | Filing |
| 2024-09-09 | Ro Khanna | House | Sell | $1,001 - $15,000 | Filing |
| 2024-09-09 | Ro Khanna | House | Sell | $1,001 - $15,000 | Filing |
| 2024-03-25 | Ro Khanna | House | Sell | $1,001 - $15,000 | Filing |
| 2024-03-20 | Ro Khanna | House | Sell | $1,001 - $15,000 | Filing |
| 2024-02-13 | Ro Khanna | House | Buy | $1,001 - $15,000 | Filing |
| 2024-01-10 | Ro Khanna | House | Buy | $1,001 - $15,000 | Filing |
| 2023-11-03 | Ro Khanna | House | Sell | $1,001 - $15,000 | Filing |
| 2023-10-10 | Ro Khanna | House | Buy | $1,001 - $15,000 | Filing |
| 2023-10-02 | Ro Khanna | House | Buy | $1,001 - $15,000 | Filing |
| 2023-09-06 | Ro Khanna | House | Sell | $1,001 - $15,000 | Filing |
| 2023-08-29 | Ro Khanna | House | Sell | $1,001 - $15,000 | Filing |
| 2023-04-10 | Ro Khanna | House | Sell | $1,001 - $15,000 | Filing |
| 2023-03-06 | Daniel Goldman | House | Sell | $1,001 - $15,000 | Filing |
| 2023-02-10 | Ro Khanna | House | Buy | $1,001 - $15,000 | Filing |
| 2023-01-23 | Shri Thanedar | House | Sell | $15,001 - $50,000 | Filing |
| 2023-01-09 | Ro Khanna | House | Sell | $1,001 - $15,000 | Filing |
| 2022-12-06 | Ro Khanna | House | Buy | $1,001 - $15,000 | Filing |
| 2022-11-03 | Susan M. Collins | Senate | Buy | $15,001 - $50,000 | Filing |
| 2022-11-03 | Ro Khanna | House | Buy | $1,001 - $15,000 | Filing |
| 2022-08-23 | Ro Khanna | House | Buy | $1,001 - $15,000 | Filing |
🏦 Top Institutional Holders
20 holders| Holder | Shares | Value | Date Reported | Filing | |
|---|---|---|---|---|---|
| BlackRock, Inc. | 15,974,601 | $2.9B | +1,163,231 | 2026-03-31 | Filing |
| PRIMECAP MANAGEMENT CO/CA | 14,757,607 | $2.7B | -390 | 2026-03-31 | Filing |
| FMR LLC | 12,807,541 | $2.3B | +3,381,678 | 2026-03-31 | Filing |
| VANGUARD CAPITAL MANAGEMENT LLC | 9,537,417 | $1.7B | +9,537,417 | 2026-03-31 | Filing |
| STATE STREET CORP | 7,167,922 | $1.3B | +8,902 | 2026-03-31 | Filing |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 6,531,727 | $1.2B | +6,531,727 | 2026-03-31 | Filing |
| GEODE CAPITAL MANAGEMENT, LLC | 4,342,602 | $793M | +143,203 | 2026-03-31 | Filing |
| WELLINGTON MANAGEMENT GROUP LLP | 2,961,641 | $543M | -589,628 | 2026-03-31 | Filing |
| JPMORGAN CHASE & CO | 2,016,009 | $378M | +158,747 | 2026-03-31 | Filing |
| AQR CAPITAL MANAGEMENT LLC | 1,923,557 | $346M | +394,941 | 2026-03-31 | Filing |
| Invesco Ltd. | 1,745,255 | $320M | +89,814 | 2026-03-31 | Filing |
| NORTHERN TRUST CORP | 1,446,579 | $265M | +453 | 2026-03-31 | Filing |
| UBS AM, a distinct business unit of UBS | 1,377,568 | $253M | -13,802 | 2026-03-31 | Filing |
| Legal & General Group Plc | 1,349,832 | $247M | -109,765 | 2026-03-31 | Filing |
| BANK OF AMERICA CORP /DE | 1,156,369 | $212M | +27,524 | 2026-03-31 | Filing |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1,149,394 | $211M | +5,492 | 2026-03-31 | Filing |
| DIMENSIONAL FUND ADVISORS LP | 1,079,119 | $198M | +118,474 | 2026-03-31 | Filing |
| DEUTSCHE BANK AG | 1,063,828 | $195M | +110,100 | 2026-03-31 | Filing |
| GOLDMAN SACHS GROUP INC | 1,051,094 | $193M | -48,272 | 2026-03-31 | Filing |
| Pictet Asset Management Holding SA | 913,328 | $168M | -34,166 | 2026-03-31 | Filing |