— Know what they know.
Not Investment Advice
Also trades as: 0R1B.L (LSE) · $vol 0M · IDP.DE (XETRA) · $vol 0M · BIIB.SW (SIX)

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
NASDAQ · Healthcare · Drug Manufacturers - General · Alpha Radar Neutral · Power 58 · $29.4B mcap · 146M float · 0.795% daily turnover · Short 57% of daily vol

🏦 Institutional Activity

Latest: Q1 2026
1,125
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

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For informational purposes only. Not investment advice. Data sourced from SEC filings. Privacy Terms