972 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, 347 reducing their positions, and 85 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
972
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
$145K
877
$145K
878
$139K
879
$135K
880
$134K
881
$121K
882
$116K
883
$115K
884
$115K
885
$113K
886
$111K
887
$109K
888
$108K
889
$101K
890
$90.9K
891
$88K
892
$85K
893
$83K
894
$82K
895
$80K
896
$80K
897
$75K
898
$75K
899
$73K
900
$63K