1,101 hedge funds and large institutions have $51.4B invested in Biogen in 2018 Q1 according to their latest regulatory filings, with 94 funds opening new positions, 424 increasing their positions, 417 reducing their positions, and 101 closing their positions.

New
Increased
Maintained
Reduced
Closed

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less ownership

Funds ownership:

less first-time investments, than exits

New positions opened: | Existing positions closed:

less funds holding

Funds holding:

7% less funds holding in top 10

Funds holding in top 10: 2826 (-2)

14% less capital invested

Capital invested by funds: $60B → $51.4B (-$8.58B)

34% less call options, than puts

Call options by funds: $695M | Put options by funds: $1.05B

Holders
1,101
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
26
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$695M
Puts
$1.05B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
901
$226K
902
$225K
903
$225K
904
$225K
905
$219K
906
$219K
907
$219K
908
$216K
909
$214K
910
$214K
911
$211K
912
$210K
913
$209K
914
$209K
915
$208K
916
$208K
917
$207K
918
$206K
919
$206K
920
$206K
921
$205K
922
$205K
923
$202K
924
$201K
925
$200K