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
451
$3.25M
452
$3.21M
453
$3.16M
454
$3.15M
455
$3.15M
456
$3.14M
457
$3.14M
458
$3.13M
459
$3.12M
460
$3.1M
461
$3.1M
462
$3.1M
463
$3.07M
464
$3.03M
465
$3M
466
$2.98M
467
$2.95M
468
$2.92M
469
$2.91M
470
$2.91M
471
$2.91M
472
$2.88M
473
$2.85M
474
$2.84M
475
$2.83M