BIIB

BIOGEN INC

Institutional Holdings

Latest 13F data

Total Institutional Value

$193.14M

Total Shares Held

1.10M

Institutions

2

Institutional Holders (2)

Latest 13F positions

Patient Capital Management LLC
CIK: 1854794
576.4K$101.4M52.5%
+45%
Feb 13, 2026
Causeway Capital Management LLC
CIK: 1165797
521.1K$91.7M47.5%
-8%
Feb 13, 2026

Congressional Trades

(4 total)
View all →
MemberTypeAmountDate
DGilbert Cisneros
 Buy$1K - $15KJan 30, 2026
RRob Bresnahan
 Buy$1K - $15KMay 15, 2025
RRob Bresnahan
 Sell$1K - $15KApr 8, 2025
RRob Bresnahan
 Buy$1K - $15KFeb 25, 2025

Insider Transactions

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SEC Form 4 filings for BIIB — last 6 months

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