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
776
$362K
777
$359K
778
$358K
779
$356K
780
$354K
781
$351K
782
$349K
783
$346K
784
$341K
785
$335K
786
$335K
787
$334K
788
$329K
789
$328K
790
$324K
791
$323K
792
$319K
793
$316K
794
$316K
795
$315K
796
$314K
797
$313K
798
$313K
799
$307K
800
$307K