Biogen Inc.
BIIB- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0000875045
In the last 90 days, Biogen Inc. insiders filed 0 open-market purchases and 1 sale; 1,046 institutions reported holding it in 13F filings for Q2 2026, worth $30.7B in total; no superinvestor holds it.
Superinvestors holding BIIB, Q2 2026
No superinvestor reported holding BIIB in Q2 2026.
Moves by quarter
Superinvestors that opened, added to, trimmed or sold out of BIIB each quarter, comparing shares with the quarter before. A superinvestor that didn't file for a quarter isn't listed, and isn't counted as selling.
Q1 2024
0 superinvestors holding at quarter end
- Sold out
- Maverick Capital
Q4 2023
1 superinvestor holding at quarter end
Q3 2023
0 superinvestors holding at quarter end
- Sold out
- Maverick Capital
Q2 2023
1 superinvestor holding at quarter end
Q2 2022
0 superinvestors holding at quarter end
Q1 2022
1 superinvestor holding at quarter end
- Reduced
- Southeastern Asset Management (Longleaf) (−1.8%)
Q4 2021
1 superinvestor holding at quarter end
Q3 2021
1 superinvestor holding at quarter end
Q2 2021
0 superinvestors holding at quarter end