Biogen Inc.
BIIB | NASDAQ
$218.44
+$2.94 (+1.36%)
Sep 21, 2026, 11:16 AM ET · Market open
Institutional Ownership
Net OutflowTotal Institutions
1,059
Total Ownership
91.69%
Capital Flow
-$150.86M
Shares Change
-4.75M
Ownership Distribution
Institutions (91.69%)
Others (8.31%)
Institutional Sentiment
Overall: neutralEquity Sentiment & Activity
bullishNew Positions
136
Increased Positions
541
Reduced Positions
291
Closed Positions
130
New (136)
Increased (541)
Reduced (291)
Closed (130)
Options Sentiment & Activity
bearishPut/Call Ratio
1.333
Call Flow
1,294,449
Put Flow
1,725,764
Calls (43%)
Puts (57%)
Super Investors
| Super Investor / Fund | Ownership | Portfolio Weight | Shares | Market Value | |
|---|---|---|---|---|---|
| Patient Capital Management | 0.19% -25.29% | 1.96% | 283.7K | 61.14M | |
| Gotham Asset Management LLC | 0.19% -6.21% | 0.14% | 279.9K | 60.32M | |
| Hillman Capital Management Inc. | 0.02% -18.78% | 3.60% | 23.99K | 5.17M |
Top Shareholders
| Institution | Ownership | Portfolio Weight | Shares | Market Value | |
|---|---|---|---|---|---|
| Blackrock, Inc. | 10.85% +7.49% | 0.05% +16.14% | 15.97M +7.85% | 2.93B +12.35% | |
| Primecap Management Co/ca/ | 10.03% -0.34% | 2.13% +8.35% | 14.76M 0.00% | 2.71B +4.17% | |
| FMR LLC | 8.70% +35.42% | 0.12% +46.23% | 12.81M +35.88% | 2.35B +41.54% |
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