1,100 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, 416 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 (-$8.57B)

34% less call options, than puts

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

Holders
1,100
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
976
$93K
977
$90K
978
$90K
979
$87K
980
$84K
981
$82.1K
982
$82K
983
$82K
984
$79.1K
985
$79K
986
$75K
987
$75K
988
$75K
989
$71K
990
$68K
991
$66K
992
$65K
993
$64K
994
$62K
995
$61K
996
$60K
997
$58K
998
$57K
999
$57K
1000
$57K