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
676
$683K
677
$680K
678
$680K
679
$667K
680
$663K
681
$661K
682
$655K
683
$646K
684
$639K
685
$635K
686
$630K
687
$625K
688
$625K
689
$614K
690
$606K
691
$603K
692
$603K
693
$602K
694
$597K
695
$596K
696
$595K
697
$581K
698
$581K
699
$578K
700
$576K