Biogen
BIIB
BIIB
873 hedge funds and large institutions have $17.4B invested in Biogen in 2025 Q1 according to their latest regulatory filings, with 126 funds opening new positions, 331 increasing their positions, 266 reducing their positions, and 106 closing their positions.
New
Increased
Maintained
Reduced
Closed
more repeat investments, than reductions
Existing positions increased: | Existing positions reduced:
more first-time investments, than exits
New positions opened: | Existing positions closed:
more funds holding
Funds holding: →
less ownership
Funds ownership: →
14% less capital invested
Capital invested by funds: $20.1B → $17.4B (-$2.71B)
44% less call options, than puts
Call options by funds: $345M | Put options by funds: $621M
50% less funds holding in top 10
Funds holding in top 10: 4 → 2 (-2)
Holders
873
Holding in Top 10
2
Calls
$345M
Puts
$621M
Top Buyers
| 1 | +$113M | |
| 2 | +$101M | |
| 3 | +$98.5M | |
| 4 |
Fidelity Investments
Boston,
Massachusetts
|
+$75.4M |
| 5 |
Point72 Asset Management
Stamford,
Connecticut
|
+$55.7M |
Top Sellers
| 1 | -$180M | |
| 2 | -$175M | |
| 3 | -$107M | |
| 4 |
JP Morgan Chase
New York
|
-$86.6M |
| 5 |
O
OrbiMed
New York
|
-$77.9M |