947 hedge funds and large institutions have $49.3B invested in Biogen in 2016 Q1 according to their latest regulatory filings, with 95 funds opening new positions, 364 increasing their positions, 350 reducing their positions, and 103 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
947
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
32
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.05B
Puts
$1.13B
Net Calls
Net Calls Change

Top Buyers

1 +$458M
2 +$148M
3 +$114M
4
VAM
Visium Asset Management
New York
+$99.3M
5
Invesco
Invesco
Georgia
+$89.1M
Name Holding Trade Value Shares
Change
Change in
Stake
651
$574K
652
$562K
653
$562K
654
$560K
655
$541K
656
$541K
657
$540K
658
$535K
659
$532K
660
$531K
661
$524K
662
$521K
663
$521K
664
$521K
665
$521K
666
$518K
667
$516K
668
$510K
669
$508K
670
$503K
671
$500K
672
$487K
673
$484K
674
$482K
675
$480K