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
851
$171K
852
$145K
853
$145K
854
$135K
855
$135K
856
$133K
857
$133K
858
$127K
859
$127K
860
$123K
861
$121K
862
$121K
863
$118K
864
$117K
865
$108K
866
$107K
867
$106K
868
$101K
869
$100K
870
$99K
871
$97K
872
$97K
873
$96K
874
$94K
875
$92K