965 hedge funds and large institutions have $46.5B invested in Biogen in 2016 Q2 according to their latest regulatory filings, with 107 funds opening new positions, 368 increasing their positions, 348 reducing their positions, and 79 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
965
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
43
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.08B
Puts
$1.33B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
376
$4.35M
377
$4.34M
378
$4.27M
379
$4.24M
380
$4.23M
381
$4.17M
382
$4.1M
383
$4.07M
384
$4.07M
385
$4.04M
386
$3.99M
387
$3.97M
388
$3.95M
389
$3.91M
390
$3.89M
391
$3.87M
392
$3.86M
393
$3.84M
394
$3.84M
395
$3.8M
396
$3.8M
397
$3.76M
398
$3.73M
399
$3.69M
400
$3.65M