973 hedge funds and large institutions have $85.3B invested in Biogen in 2015 Q2 according to their latest regulatory filings, with 100 funds opening new positions, 367 increasing their positions, 348 reducing their positions, and 85 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
973
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
52
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.21B
Puts
$1.72B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
926
$32K
927
$32K
928
$31K
929
$30K
930
$30K
931
$28K
932
$25K
933
$25K
934
$24K
935
$23K
936
$22K
937
$21K
938
$20.2K
939
$19.2K
940
$19K
941
$17K
942
$17K
943
$17K
944
$16K
945
$15K
946
$15K
947
$15K
948
$12K
949
$12K
950
$11K