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
601
$1.09M
602
$1.06M
603
$1.05M
604
$1.05M
605
$1.05M
606
$1.04M
607
$1.04M
608
$1.03M
609
$1.02M
610
$1.01M
611
$1.01M
612
$1.01M
613
$1.01M
614
$996K
615
$989K
616
$985K
617
$977K
618
$972K
619
$970K
620
$969K
621
$957K
622
$954K
623
$943K
624
$939K
625
$931K