Arkolith/Stocks/BIIB

BIIB · BIOGEN INC

USCUSIP 09062X103
Institutional Owners
6
13F Value Held
$1.4B
Insider Net (180d)
$0
Recent Filings
0

Institutional Ownership (13F)

6 holders
#FundValueSharesChangeFiling
1STATE STREET CORP$1.3B7.17MNEWQ1 2026
2Gotham Asset Management, LLC$54.7M298.4KADDEDQ1 2026
3CITADEL ADVISORS LLC$17.0M92.7KREDUCEDQ1 2026
4Bridgewater Associates, LP$5.6M40.0KNEWQ3 2025
5MANGROVE PARTNERS IM, LLC$888K4.6KNEWQ3 2024
6Point72 Asset Management, L.P.$862K4.7KREDUCEDQ1 2026

Insider Activity (Form 4)

No Form 4 insider transactions on file yet.

Recent Filings

0 shown

No filings captured for this ticker in the live stream yet.

Funds that own BIIB also own

CompanyCo-held byCombined value
NVIDIA CORPORATIONNVDA4 funds$178.6B
MICROSOFT CORPMSFT4 funds$114.8B
AMAZON COM INCAMZN4 funds$84.2B
ALPHABET INCGOOGL4 funds$66.2B
BROADCOM INCAVGO4 funds$61.1B
ALPHABET INCGOOG4 funds$54.1B
META PLATFORMS INCMETA4 funds$52.3B
EXXON MOBIL CORPXOM4 funds$36.6B
ELI LILLY & COLLY4 funds$33.1B
CHEVRON CORPORATIONCVX4 funds$32.2B
VISA INCV4 funds$25.3B
LOCKHEED MARTIN CORPLMT4 funds$20.3B

Ranked by how many of BIIB's institutional holders also hold each name — a cross-fund conviction signal. Via the MCP server (ticker.co_held).

13F holdings + Form 4 insider transactions + the live filing stream, joined for BIIB. Public domain, sourced to SEC EDGAR. Every panel above is one call to the Arkolith API & MCP server.