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Biogen
BIIB

Overview Fund Activity

860 hedge funds and large institutions have $20.1B invested in Biogen in 2024 Q4 according to their latest regulatory filings, with 130 funds opening new positions, 292 increasing their positions, 317 reducing their positions, and 158 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
860
Holders Change
-42
Holders Change %
-4.66%
% of All Funds
11.45%
Holding in Top 10
4
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-50%
% of All Funds
0.05%
New
130
Increased
292
Reduced
317
Closed
158
Calls
$308M
Puts
$356M
Net Calls
-$47.1M
Net Calls Change
+$22.1M

Top Buyers

1
Pacer Advisors
1
Pacer Advisors
Pennsylvania
$408M
2
D.E. Shaw & Co
2
D.E. Shaw & Co
New York
$246M
3
VanEck Associates
3
VanEck Associates
New York
$163M
4
Qube Research & Technologies (QRT)
4
Qube Research & Technologies (QRT)
United Kingdom
$167M
5
UBS Group
5
UBS Group
Switzerland
$160M

Top Sellers

1
JPMorgan Chase & Co
1
JPMorgan Chase & Co
New York
$321M
2
RCM
2
RA Capital Management
Massachusetts
$0
3
T. Rowe Price Investment Management
3
T. Rowe Price Investment Management
Maryland
$474M
4
Ameriprise
4
Ameriprise
Minnesota
$22M
5
ClearBridge Investments
5
ClearBridge Investments
New York
$242K
Name Holding Trade Value Shares
Change 		Shares
Change %
AAIM
876
American Assets Investment Management
California
– -$3.88M -20,000 Closed
SCM
877
Silverarc Capital Management
Massachusetts
– -$3.87M -19,940 Closed
AP
878
Arlington Partners
Alabama
– -$3.72M -19,214 Closed
FWIA
879
Fort Washington Investment Advisors
Ohio
– -$3.45M -17,814 Closed
Walleye Trading
880
Walleye Trading
New York
– -$3.32M -17,102 Closed
EAM
881
Exome Asset Management
New York
– -$2.57M -13,317 Closed
GS
882
GTS Securities
New York
– -$2.58M -13,294 Closed
TSS
883
Two Sigma Securities
New York
– -$2.07M -10,659 Closed
FRM
884
Fox Run Management
Connecticut
– -$1.54M -7,922 Closed
OBAM
885
ODDO BHF Asset Management
France
– -$1.38M -7,136 Closed
CM
886
Crestline Management
Texas
– -$1.31M -6,750 Closed
HSA
887
Hussman Strategic Advisors
Maryland
– -$1.22M -6,300 Closed
AI
888
AXS Investments
New York
– -$1.2M -6,185 Closed
IFU
889
iSAM Funds (UK)
United Kingdom
– -$1.12M -5,756 Closed
EAM
890
Exane Asset Management
France
– -$969K -5,000 Closed
MIF
891
Mediolanum International Funds
Ireland
– -$951K -4,893 Closed
DAS
892
Diversify Advisory Services
Utah
– -$877K -4,719 Closed
LA
893
Lindenwold Advisors
Pennsylvania
– -$893K -4,605 Closed
MP
894
Mangrove Partners
Connecticut
– -$888K -4,582 Closed
RSVP
895
Ramsay Stattman Vela & Price
Colorado
– -$881K -4,545 Closed
Twin Tree Management
896
Twin Tree Management
Texas
– -$833K -4,296 Closed
Los Angeles Capital Management
897
Los Angeles Capital Management
California
– -$830K -4,282 Closed
SG Americas Securities
898
SG Americas Securities
New York
– -$712K -3,675 Closed
AIM
899
Aigen Investment Management
New York
– -$682K -3,520 Closed
DM
900
Deerfield Management
New York
– -$679K -3,504 Closed
34 35
36
37 38