1,013 hedge funds and large institutions have $59B invested in Biogen in 2017 Q3 according to their latest regulatory filings, with 99 funds opening new positions, 380 increasing their positions, 355 reducing their positions, and 68 closing their positions.

New
Increased
Maintained
Reduced
Closed

more funds holding in top 10

Funds holding in top 10:

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

1.38% more ownership

Funds ownership: 87.76%89.14% (+1.4%)

7% more repeat investments, than reductions

Existing positions increased: 380 | Existing positions reduced: 355

22% less call options, than puts

Call options by funds: $974M | Put options by funds: $1.24B

Holders
1,013
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
38
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$974M
Puts
$1.24B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
876
$220K
877
$219K
878
$219K
879
$210K
880
$209K
881
$209K
882
$208K
883
$208K
884
$207K
885
$204K
886
$204K
887
$204K
888
$203K
889
$202K
890
$197K
891
$195K
892
$191K
893
$188K
894
$186K
895
$181K
896
$176K
897
$165K
898
$164K
899
$162K
900
$157K