964 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, 347 reducing their positions, and 79 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
964
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
326
$6.17M
327
$6.16M
328
$6.06M
329
$6.05M
330
$5.98M
331
$5.92M
332
$5.89M
333
$5.87M
334
$5.85M
335
$5.75M
336
$5.73M
337
$5.71M
338
$5.69M
339
$5.59M
340
$5.51M
341
$5.44M
342
$5.44M
343
$5.42M
344
$5.35M
345
$5.28M
346
$5.27M
347
$5.24M
348
$5.21M
349
$5.2M
350
$5.19M