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
651
$804K
652
$799K
653
$796K
654
$794K
655
$772K
656
$768K
657
$767K
658
$766K
659
$758K
660
$756K
661
$755K
662
$754K
663
$749K
664
$748K
665
$745K
666
$743K
667
$739K
668
$727K
669
$723K
670
$708K
671
$702K
672
$698K
673
$697K
674
$693K
675
$690K