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; 1,047 institutions reported holding it in 13F filings for Q2 2026, worth $30.7B in total; no superinvestor holds it.
Q4 2021 vs. Q3 2021
How the institutions holding Biogen Inc. changed between Q3 2021 and Q4 2021.
All holders in Q4 2021All holders in Q3 2021
| Measure | Q3 2021 | Of which not filed for Q4 2021 | Q4 2021 | Change |
|---|---|---|---|---|
| Holders | 1,044 | 23 | 1,014 | −7 |
| Shares | 123.8M | 77.1K | 123.9M | +172.9K (+0.1%) |
| Value | $35.1B | $21.8M | $29.7B | −$5.31B (−15.2%) |
23 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so the changes leave them out.
New holders (146)
Institutions that held Biogen Inc. at the end of Q4 2021 but not at the end of Q3 2021.
Showing the largest 100 of 146 by value.
Sold out (153)
Institutions that held Biogen Inc. at the end of Q3 2021 and filed for Q4 2021 without it.
Showing the largest 100 of 153 by value.
Not filed for Q4 2021 yet (23)
Institutions that held Biogen Inc. at the end of Q3 2021 and haven't filed a 13F for Q4 2021. Not filing isn't selling, so they aren't counted as sold out.