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Biogen
BIIB

Overview Fund Activity

846 hedge funds and large institutions have $16.1B invested in Biogen in 2025 Q2 according to their latest regulatory filings, with 94 funds opening new positions, 336 increasing their positions, 257 reducing their positions, and 99 closing their positions.

Holders
846
Holders Change
-22
Holders Change %
-2.53%
% of All Funds
11.36%
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
336
Reduced
257
Closed
99
Calls
$292M
Puts
$203M
Net Calls
+$88.9M
Net Calls Change
+$365M

Top Buyers

1
Point72 Asset Management
1
Point72 Asset Management
Connecticut
$481M
2
Norges Bank
2
Norges Bank
Norway
$284M
3
Alyeska Investment Group
3
Alyeska Investment Group
Illinois
$63.9M
4
Arrowstreet Capital
4
Arrowstreet Capital
Massachusetts
$78.4M
5
Fidelity Investments
5
Fidelity Investments
Massachusetts
$210M

Top Sellers

1
BlackRock
1
BlackRock
New York
$1.7B
2
T. Rowe Price Investment Management
2
T. Rowe Price Investment Management
Maryland
$175M
3
Amundi
3
Amundi
France
$77.2M
4
SG Americas Securities
4
SG Americas Securities
New York
$2.82M
5
Qube Research & Technologies (QRT)
5
Qube Research & Technologies (QRT)
United Kingdom
$93.4M
Name Market Value Shares Shares
Change 		Shares
Change %
SHIM
801
Stone House Investment Management
Pennsylvania
$1.76K 14 -15 -52%
NL
802
NVWM LLC
Pennsylvania
$1.76K 14 +1 +8%
HCM
803
Hollencrest Capital Management
California
$1.63K 13 – –
NECFA
804
New England Capital Financial Advisors
Connecticut
$1.63K 13 – –
PPC
805
Park Place Capital
Alabama
$1.43K 11 – –
BWM
806
Bernard Wealth Management
Michigan
$1.38K 11 – –
1NWS
807
1 North Wealth Services
Maryland
$1.26K 10 – –
SIS
808
Strategic Investment Solutions
Illinois
$1.26K 10 – –
AF
809
Advisornet Financial
Minnesota
$1.13K 9 -6 -40%
WPA
810
Wealth Preservation Advisors
Tennessee
$1.13K 9 – –
CIA
811
Cape Investment Advisory
Georgia
$1.13K 9 +2 +29%
Kayne Anderson Rudnick Investment Management
812
Kayne Anderson Rudnick Investment Management
California
$1.13K 9 +9 New
IWM
813
IMG Wealth Management
Florida
$1.13K 9 +9 New
ACA
814
American Capital Advisory
Idaho
$1.01K 8 +6 +300%
SO
815
Sierra Ocean
California
$1.01K 8 -31 -79%
EWM
816
Evolution Wealth Management
Florida
$1.01K 8 +8 New
PCM
817
Penserra Capital Management
California
$1K 12 – –
HBW
818
Hazlett, Burt & Watson
West Virginia
$1K 10 +10 New
WCM
819
WealthTrak Capital Management
Virginia
$880 7 -1 -13%
RWM
820
Rialto Wealth Management
New York
$754 6 -10 -63%
WA
821
WestEnd Advisors
North Carolina
$754 6 – –
FG
822
Fairman Group
Pennsylvania
$754 6 – –
LI
823
LRI Investments
Florida
$754 6 – –
AFG
824
Albion Financial Group
Utah
$754 6 – –
PWM
825
Parkworth Wealth Management
California
$754 6 +6 New
31 32
33
34 35