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
576
$1.31M
577
$1.31M
578
$1.3M
579
$1.3M
580
$1.29M
581
$1.28M
582
$1.27M
583
$1.27M
584
$1.25M
585
$1.25M
586
$1.25M
587
$1.24M
588
$1.23M
589
$1.23M
590
$1.22M
591
$1.21M
592
$1.21M
593
$1.18M
594
$1.16M
595
$1.15M
596
$1.13M
597
$1.13M
598
$1.13M
599
$1.12M
600
$1.12M