1,101 hedge funds and large institutions have $51.4B invested in Biogen in 2018 Q1 according to their latest regulatory filings, with 94 funds opening new positions, 424 increasing their positions, 417 reducing their positions, and 101 closing their positions.

New
Increased
Maintained
Reduced
Closed

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less ownership

Funds ownership:

less first-time investments, than exits

New positions opened: | Existing positions closed:

less funds holding

Funds holding:

7% less funds holding in top 10

Funds holding in top 10: 2826 (-2)

14% less capital invested

Capital invested by funds: $60B → $51.4B (-$8.58B)

34% less call options, than puts

Call options by funds: $695M | Put options by funds: $1.05B

Holders
1,101
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
26
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$695M
Puts
$1.05B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
876
$255K
877
$254K
878
$253K
879
$251K
880
$250K
881
$247K
882
$246K
883
$246K
884
$242K
885
$242K
886
$240K
887
$239K
888
$239K
889
$238K
890
$237K
891
$236K
892
$233K
893
$233K
894
$231K
895
$231K
896
$230K
897
$228K
898
$228K
899
$226K
900
$226K