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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 %
AP
851
Atwood & Palmer
Missouri
$685 – – –
EWM
852
Evermay Wealth Management
Virginia
$685 – – –
CT
853
Colonial Trust
South Carolina
$684 -$25K -183 -97%
WW
854
Winnow Wealth
Texas
$539 +$135 +1 +33%
WA
855
WPG Advisers
Maryland
$411 -$822 -6 -67%
JWA
856
JFS Wealth Advisors
Pennsylvania
$411 -$411 -3 -50%
GC
857
Gould Capital
Washington
$411 – – –
NWM
858
Nova Wealth Management
Florida
$411 +$411 +3 New
CW
859
Curio Wealth
Maryland
$306 +$306 +1 New
ACA
860
American Capital Advisory
Idaho
$282 +$282 +2 New
MAS
861
MPWM Advisory Solutions
Georgia
$274 – – –
VWA
862
Valued Wealth Advisors
Utah
$137 -$274 -2 -67%
BLC
863
Brown, Lisle/Cummings
Rhode Island
$137 +$137 +1 New
HIA
864
HFM Investment Advisors
New Jersey
$137 +$137 +1 New
RJA
865
Ross\Johnson & Associates
Minnesota
$136 +$136 +1 New
Q1WB
866
Quest 10 Wealth Builders
Virginia
$107 +$107 +1 New
WOC
867
West Oak Capital
California
$62 – – –
Norges Bank
868
Norges Bank
Norway
– -$356M -2,325,199 Closed
O
869
OrbiMed
New York
– -$77.9M -509,100 Closed
PI
870
PineBridge Investments
New York
– -$38.2M -249,800 Closed
WCM
871
Wedge Capital Management
North Carolina
– -$27.4M -179,191 Closed
KAM
872
Krensavage Asset Management
New York
– -$16.7M -108,923 Closed
SSA
873
Schonfeld Strategic Advisors
New York
– -$12.2M -79,516 Closed
BA
874
Bridgewater Associates
Connecticut
– -$10.7M -70,033 Closed
KHLMVGHM
875
Kranot Hishtalmut Le Morim Ve Gananot Havera Menahelet
Israel
– -$8.34M -54,585 Closed
33 34
35
36 37