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Biogen
BIIB

Overview Fund Activity

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
Point72 Asset Management
Connecticut
$481M
2
Alyeska Investment Group
Alyeska Investment Group
Illinois
$63.9M
3
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
$78.4M
4
Fidelity Investments
Fidelity Investments
Massachusetts
$210M
5
A
AustralianSuper
Australia
$92.9M

Top Sellers

1
BlackRock
BlackRock
New York
$1.7B
2
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
$175M
3
Amundi
Amundi
France
$77.2M
4
SG Americas Securities
SG Americas Securities
New York
$2.82M
5
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT)
United Kingdom
$93.4M
Name Holding Trade Value Shares
Change 		Shares
Change %
CCMI
926
Creative Capital Management Investments
California
– -$12.6K -92 Closed
TF
927
Tompkins Financial
New York
– -$11.1K -81 Closed
FIA
928
FNY Investment Advisers
New York
– -$9K -70 Closed
WPA
929
West Paces Advisors
Georgia
– -$9.58K -70 Closed
SCB
930
Saudi Central Bank
Saudi Arabia
– -$7.8K -57 Closed
SIM
931
Synergy Investment Management
Florida
– -$6.84K -50 Closed
AFS
932
Anderson Financial Strategies
Ohio
– -$5.47K -40 Closed
DWS
933
Dynamic Wealth Strategies
California
– -$4.52K -33 Closed
BCMLT
934
Beacon Capital Management LLC (Tennessee)
Tennessee
– -$2.74K -20 Closed
MDA
935
Minot DeBlois Advisors
Massachusetts
– -$2.74K -20 Closed
HCP
936
Hexagon Capital Partners
Arkansas
– -$2.6K -19 Closed
CWM
937
CarsonAllaria Wealth Management
Illinois
– -$2.05K -15 Closed
SFG
938
Stonebridge Financial Group
Pennsylvania
– -$1.51K -11 Closed
BGC
939
Beutel, Goodman & Co
Ontario, Canada
– -$1K -10 Closed
HC
940
Hurley Capital
New York
– -$1.37K -10 Closed
GFPC
941
Global Financial Private Client
Florida
– -$1.1K -8 Closed
DFA
942
DHJJ Financial Advisors
Illinois
– -$822 -6 Closed
SWA
943
SOA Wealth Advisors
New York
– -$821 -6 Closed
WW
944
Winnow Wealth
Texas
– -$539 -4 Closed
NWM
945
Nova Wealth Management
Florida
– -$411 -3 Closed
GC
946
Gould Capital
Washington
– -$411 -3 Closed
MAS
947
MPWM Advisory Solutions
Georgia
– -$274 -2 Closed
BLC
948
Brown, Lisle/Cummings
Rhode Island
– -$137 -1 Closed
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