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
876
$147K
877
$145K
878
$145K
879
$139K
880
$135K
881
$134K
882
$121K
883
$116K
884
$115K
885
$115K
886
$113K
887
$111K
888
$109K
889
$108K
890
$101K
891
$90.9K
892
$88K
893
$85K
894
$83K
895
$82K
896
$80K
897
$80K
898
$75K
899
$75K
900
$73K