965 hedge funds and large institutions have $46.5B invested in Biogen in 2016 Q2 according to their latest regulatory filings, with 107 funds opening new positions, 368 increasing their positions, 348 reducing their positions, and 79 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
965
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
43
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.08B
Puts
$1.33B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
801
$242K
802
$242K
803
$242K
804
$242K
805
$241K
806
$241K
807
$241K
808
$239K
809
$238K
810
$237K
811
$232K
812
$231K
813
$231K
814
$230K
815
$228K
816
$228K
817
$228K
818
$226K
819
$224K
820
$222K
821
$222K
822
$220K
823
$219K
824
$219K
825
$218K