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Biogen
BIIB

Overview Fund Activity

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
AQR Capital Management
Connecticut
$187M
2
Balyasny Asset Management
Balyasny Asset Management
Illinois
$108M
3
SG Americas Securities
SG Americas Securities
New York
$98.5M
4
Fidelity Investments
Fidelity Investments
Massachusetts
$179M
5
Point72 Asset Management
Point72 Asset Management
Connecticut
$55.7M

Top Sellers

1
Pacer Advisors
Pacer Advisors
Pennsylvania
$185M
2
BGC
Beutel, Goodman & Co
Ontario, Canada
$1K
3
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
$158M
4
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
$200M
5
O
OrbiMed
New York
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
JFGIW
776
Johnson Financial Group Inc (Wisconsin)
Wisconsin
$5.34K – – –
SO
777
Sierra Ocean
California
$5.34K +$2.6K +19 +95%
MAM
778
Meeder Asset Management
Ohio
$5.2K -$2.19K -16 -30%
EFMH
779
E Fund Management (HK)
Hong Kong
$5K +$3.75K +30 +300%
WB
780
Webster Bank
Connecticut
$4.93K -$5.34K -39 -52%
PWMG
781
Prestige Wealth Management Group
New Jersey
$4.79K – – –
HNW
782
High Note Wealth
Minnesota
$4.79K -$3.01K -22 -39%
MHR
783
Matthew Hamilton Rosenberg
$4.79K – – –
CSC
784
Caldwell Sutter Capital
California
$4.65K – – –
DWS
785
Dynamic Wealth Strategies
California
$4.52K +$4.52K +33 New
DPW
786
DiNuzzo Private Wealth
Pennsylvania
$4.38K -$684 -5 -14%
EWP
787
Elevation Wealth Partners
California
$4.11K – – –
WA
788
Whipplewood Advisors
Colorado
$4.11K -$293 -2 -7%
BC
789
Barrett & Company
Rhode Island
$4.11K – – –
HFS
790
Hantz Financial Services
Michigan
$4K +$4K +30 New
TVWM
791
Tower View Wealth Management
Wisconsin
$3.97K – – –
SHIM
792
Stone House Investment Management
Pennsylvania
$3.97K +$3.97K +29 New
S
793
Sachetta
Massachusetts
$3.83K -$137 -1 -3%
BSB
794
Bangor Savings Bank
Maine
$3.83K – – –
BA
795
Bellwether Advisors
Nebraska
$3.83K – – –
CT
796
Clearstead Trust
Maine
$3.7K +$3.7K +27 New
BCWM
797
Bartlett & Co Wealth Management
Ohio
$3.56K -$15.6K -114 -81%
TWD
798
True Wealth Design
Ohio
$3.42K -$6.71K -49 -66%
CWM
799
Consultiva Wealth Management
Puerto Rico
$3.42K – – –
PB
800
Pinnacle Bancorp
Nebraska
$3.15K +$3.15K +23 New
30 31
32
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