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874 hedge funds and large institutions have $20.2B invested in Biogen in 2024 Q4 according to their latest regulatory filings, with 131 funds opening new positions, 300 increasing their positions, 322 reducing their positions, and 159 closing their positions.

New
Increased
Maintained
Reduced
Closed

1.72% more ownership

Funds ownership: 89.11%90.83% (+1.7%)

7% less repeat investments, than reductions

Existing positions increased: 300 | Existing positions reduced: 322

5% less funds holding

Funds holding: 916874 (-42)

13% less call options, than puts

Call options by funds: $310M | Put options by funds: $356M

18% less first-time investments, than exits

New positions opened: 131 | Existing positions closed: 159

19% less capital invested

Capital invested by funds: $25.1B → $20.2B (-$4.84B)

38% less funds holding in top 10

Funds holding in top 10: 85 (-3)

Holders
874
Holders Change
-42
Holders Change %
-4.59%
% of All Funds
11.51%
Holding in Top 10
5
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-37.5%
% of All Funds
0.07%
New
131
Increased
300
Reduced
322
Closed
159
Calls
$310M
Puts
$356M
Net Calls
-$45.6M
Net Calls Change
+$21.7M
Name Holding Trade Value Shares
Change
Change in
Stake
HSA
901
Hussman Strategic Advisors
Maryland
-$1.22M -6,300 Closed
AI
902
AXS Investments
New York
-$1.2M -6,185 Closed
IFU
903
iSAM Funds (UK)
United Kingdom
-$1.12M -5,756 Closed
EAM
904
Exane Asset Management
France
-$969K -5,000 Closed
MIF
905
Mediolanum International Funds
Ireland
-$951K -4,893 Closed
DAS
906
Diversify Advisory Services
Utah
-$877K -4,719 Closed
LA
907
Lindenwold Advisors
Pennsylvania
-$893K -4,605 Closed
MP
908
Mangrove Partners
Connecticut
-$888K -4,582 Closed
RSVP
909
Ramsay Stattman Vela & Price
Colorado
-$881K -4,545 Closed
Twin Tree Management
910
Twin Tree Management
Texas
-$725K -4,296 Closed
Los Angeles Capital Management
911
Los Angeles Capital Management
California
-$830K -4,282 Closed
SG Americas Securities
912
SG Americas Securities
New York
-$620K -3,675 Closed
AIM
913
Aigen Investment Management
New York
-$682K -3,520 Closed
DM
914
Deerfield Management
New York
-$679K -3,504 Closed
MA
915
Mutual Advisors
Nebraska
-$629K -3,420 Closed
OAM
916
Oxford Asset Management
United Kingdom
-$657K -3,388 Closed
CIA
917
Concurrent Investment Advisors
Florida
-$647K -3,340 Closed
BCM
918
Bridgeway Capital Management
Texas
-$640K -3,300 Closed
MM
919
MQS Management
New York
-$631K -3,256 Closed
BC
920
Bridgefront Capital
Texas
-$629K -3,243 Closed
AGP
921
Autumn Glory Partners
Texas
-$617K -3,184 Closed
PWG
922
Portside Wealth Group
Utah
-$552K -2,848 Closed
DFCM
923
Dark Forest Capital Management
Puerto Rico
-$542K -2,797 Closed
MWM
924
Moran Wealth Management
Florida
-$502K -2,592 Closed
CPC
925
Congress Park Capital
New York
-$486K -2,505 Closed