944 hedge funds and large institutions have $27.8B invested in Biogen in 2024 Q1 according to their latest regulatory filings, with 102 funds opening new positions, 300 increasing their positions, 352 reducing their positions, and 144 closing their positions.

New
Increased
Maintained
Reduced
Closed

less call options, than puts

Call options by funds: $ | Put options by funds: $

less ownership

Funds ownership:

less funds holding

Funds holding:

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

17% less capital invested

Capital invested by funds: $33.5B → $27.8B (-$5.73B)

20% less funds holding in top 10

Funds holding in top 10: 108 (-2)

29% less first-time investments, than exits

New positions opened: 102 | Existing positions closed: 144

Holders
944
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
8
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$301M
Puts
$303M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
901
$4.31K
902
$4.1K
903
$3.67K
904
$3.48K
905
$3.45K
906
$3.45K
907
$3.45K
908
$3.23K
909
$3.23K
910
$3.23K
911
$3.22K
912
$2.8K
913
$2.8K
914
$2.37K
915
$2.31K
916
$2.16K
917
$2.16K
918
$2.03K
919
$2K
920
$2K
921
$1.94K
922
$1.73K
923
$1.62K
924
$1.51K
925
$1.51K