Biogen
BIIB
BIIB
850 hedge funds and large institutions have $16.2B invested in Biogen in 2025 Q2 according to their latest regulatory filings, with 94 funds opening new positions, 337 increasing their positions, 260 reducing their positions, and 99 closing their positions.
New
Increased
Maintained
Reduced
Closed
Holders
850
Holders Change
-18
Holders Change %
-2.07%
% of All Funds
11.4%
Holding in Top 10
5
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+150%
% of All Funds
0.07%
New
94
Increased
337
Reduced
260
Closed
99
Calls
$381M
Puts
$333M
Net Calls
+$47.6M
Net Calls Change
+$323M
Top Buyers
| 1 |
Point72 Asset Management
Stamford,
Connecticut
|
+$430M |
| 2 |
Alyeska Investment Group
Chicago,
Illinois
|
+$63.9M |
| 3 |
Arrowstreet Capital
Boston,
Massachusetts
|
+$51.4M |
| 4 |
Fidelity Investments
Boston,
Massachusetts
|
+$45.9M |
| 5 |
A
AustralianSuper
Melbourne,
Australia
|
+$42.9M |
Top Sellers
| 1 |
BlackRock
New York
|
-$208M |
| 2 |
T. Rowe Price Investment Management
Baltimore,
Maryland
|
-$159M |
| 3 |
Amundi
Paris,
France
|
-$98M |
| 4 |
SG Americas Securities
New York
|
-$87.6M |
| 5 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
-$60.7M |
