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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.

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
1
AQR Capital Management
Connecticut
$187M
2
Balyasny Asset Management
2
Balyasny Asset Management
Illinois
$108M
3
SG Americas Securities
3
SG Americas Securities
New York
$98.5M
4
Fidelity Investments
4
Fidelity Investments
Massachusetts
$179M
5
Point72 Asset Management
5
Point72 Asset Management
Connecticut
$55.7M

Top Sellers

1
Pacer Advisors
1
Pacer Advisors
Pennsylvania
$185M
2
BGC
2
Beutel, Goodman & Co
Ontario, Canada
$1K
3
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$158M
4
JPMorgan Chase & Co
4
JPMorgan Chase & Co
New York
$200M
5
O
5
OrbiMed
New York
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
MFS
951
Mattson Financial Services
Michigan
– -$19.4K -100 Closed
RCM
952
Raleigh Capital Management
North Carolina
– -$10.9K -71 Closed
EFP
953
EnRich Financial Partners
Wisconsin
– -$10.1K -66 Closed
CBT
954
Crews Bank & Trust
Florida
– -$7.03K -46 Closed
AT
955
Avalon Trust
New Mexico
– -$6.42K -42 Closed
CT
956
Coastline Trust
Rhode Island
– -$5.66K -37 Closed
UOIF
957
University of Illinois Foundation
Illinois
– -$3.82K -25 Closed
SSG
958
Summit Securities Group
New York
– -$3.67K -24 Closed
ACM
959
Aster Capital Management
United Arab Emirates
– -$2.75K -18 Closed
IHWM
960
Iron Horse Wealth Management
Iowa
– -$2.29K -15 Closed
Kayne Anderson Rudnick Investment Management
961
Kayne Anderson Rudnick Investment Management
California
– -$1.84K -12 Closed
CWC
962
Carolinas Wealth Consulting
North Carolina
– -$1.84K -12 Closed
EBA
963
Eagle Bay Advisors
New York
– -$1.38K -9 Closed
CWM
964
Cranbrook Wealth Management
Michigan
– -$1.07K -7 Closed
CFGS
965
Concourse Financial Group Securities
Alabama
– -$999 -7 Closed
CAS
966
Coppell Advisory Solutions
Texas
– -$1.05K -7 Closed
TFM
967
TFC Financial Management
Massachusetts
– -$459 -3 Closed
SC
968
Stance Capital
Massachusetts
– -$459 -3 Closed
CAWM
969
Capital A Wealth Management
Pennsylvania
– -$459 -3 Closed
AA
970
Ancora Advisors
Ohio
– -$306 -2 Closed
PWM
971
Parkworth Wealth Management
California
– -$153 -1 Closed
AWM
972
Activest Wealth Management
Florida
– -$153 -1 Closed
PCFFS
973
Pacific Center for Financial Services
California
– -$6 – –
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