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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 %
KRW
901
Kaufman Rossin Wealth
Florida
– – -1,690 Closed
OIA
902
OneDigital Investment Advisors
Kansas
– – -1,688 Closed
WW
903
Waterfront Wealth
Kansas
– – -1,593 Closed
AV
904
ASR Vermogensbeheer
Netherlands
– – -1,590 Closed
MOS
905
MGO One Seven
Ohio
– – -1,547 Closed
AIIMS
906
Analyst IMS Investment Management Services
Israel
– – -1,527 Closed
DADC
907
D.A. Davidson & Co
Montana
– – -1,518 Closed
JIC
908
Johnson Investment Counsel
Ohio
– – -1,513 Closed
VCM
909
Virtue Capital Management
Tennessee
– – -1,508 Closed
SACTSONJ
910
Supplemental Annuity Collective Trust (SACT) of New Jersey
New Jersey
– – -1,500 Closed
FNBT
911
FineMark National Bank & Trust
Florida
– – -1,486 Closed
IWM
912
IHT Wealth Management
Illinois
– – -1,480 Closed
WB
913
WesBanco Bank
West Virginia
– – -1,464 Closed
SW
914
SVB Wealth
Massachusetts
– – -855 Closed
IIM
915
Intact Investment Management
Quebec, Canada
– – -500 Closed
SIM
916
Sentry Investment Management
Wisconsin
– – -454 Closed
CIAM
917
Caitong International Asset Management
Hong Kong
– – -448 Closed
QC
918
Quent Capital
New York
– – -391 Closed
VWM
919
Vermillion Wealth Management
Minnesota
– – -300 Closed
RTC
920
Riverview Trust Company
Washington
– – -286 Closed
ST
921
Smithfield Trust
Pennsylvania
– – -100 Closed
CCMI
922
Creative Capital Management Investments
California
– – -92 Closed
TF
923
Tompkins Financial
New York
– – -81 Closed
WPA
924
West Paces Advisors
Georgia
– – -70 Closed
FIA
925
FNY Investment Advisers
New York
– – -70 Closed
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