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
501
$2.24M
502
$2.24M
503
$2.23M
504
$2.19M
505
$2.17M
506
$2.17M
507
$2.14M
508
$2.12M
509
$2.07M
510
$2.06M
511
$2.05M
512
$2.02M
513
$2M
514
$2M
515
$1.99M
516
$1.98M
517
$1.98M
518
$1.98M
519
$1.94M
520
$1.91M
521
$1.88M
522
$1.86M
523
$1.85M
524
$1.85M
525
$1.83M