Biogen
BIIB
BIIB
868 hedge funds and large institutions have $17.4B invested in Biogen in 2025 Q1 according to their latest regulatory filings, with 127 funds opening new positions, 328 increasing their positions, 264 reducing their positions, and 105 closing their positions.
New
Increased
Maintained
Reduced
Closed
Holders
868
Holders Change
+8
Holders Change %
+0.93%
% of All Funds
11.79%
Holding in Top 10
2
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-50%
% of All Funds
0.03%
New
127
Increased
328
Reduced
264
Closed
105
Calls
$345M
Puts
$621M
Net Calls
-$276M
Net Calls Change
-$229M
Top Buyers
| 1 |
AQR Capital Management
Greenwich,
Connecticut
|
+$113M |
| 2 |
Balyasny Asset Management
Chicago,
Illinois
|
+$101M |
| 3 |
SG Americas Securities
New York
|
+$98.5M |
| 4 |
Fidelity Investments
Boston,
Massachusetts
|
+$75.4M |
| 5 |
Point72 Asset Management
Stamford,
Connecticut
|
+$55.7M |
Top Sellers
| 1 |
Pacer Advisors
Malvern,
Pennsylvania
|
-$180M |
| 2 |
BGC
Beutel, Goodman & Co
Toronto,
Ontario, Canada
|
-$175M |
| 3 |
T. Rowe Price Associates
Baltimore,
Maryland
|
-$107M |
| 4 |
JPMorgan Chase & Co
New York
|
-$86.6M |
| 5 |
O
OrbiMed
New York
|
-$77.9M |
