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
801
$306K
802
$301K
803
$301K
804
$299K
805
$292K
806
$291K
807
$286K
808
$284K
809
$283K
810
$281K
811
$280K
812
$280K
813
$280K
814
$279K
815
$277K
816
$277K
817
$274K
818
$273K
819
$273K
820
$270K
821
$269K
822
$268K
823
$267K
824
$265K
825
$265K