1,140 hedge funds and large institutions have $52.2B invested in Biogen in 2018 Q4 according to their latest regulatory filings, with 130 funds opening new positions, 374 increasing their positions, 452 reducing their positions, and 122 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:

less funds holding

Funds holding:

less ownership

Funds ownership:

17% less capital invested

Capital invested by funds: $62.8B → $52.2B (-$10.5B)

17% less repeat investments, than reductions

Existing positions increased: 374 | Existing positions reduced: 452

26% less call options, than puts

Call options by funds: $992M | Put options by funds: $1.34B

Holders
1,140
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
29
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$992M
Puts
$1.34B
Net Calls
Net Calls Change

Top Sellers

1 -$196M
2 -$177M
3 -$150M
4
Invesco
Invesco
Georgia
-$145M
5
Goldman Sachs
Goldman Sachs
New York
-$139M
Name Holding Trade Value Shares
Change
Change in
Stake
1051
$36K
1052
$35K
1053
$34K
1054
$33K
1055
$33K
1056
$33K
1057
$33K
1058
$32K
1059
$32K
1060
$31K
1061
$31K
1062
$30K
1063
$30K
1064
$29K
1065
$29K
1066
$28K
1067
$25K
1068
$24K
1069
$23K
1070
$23K
1071
$22K
1072
$20K
1073
$19K
1074
$19K
1075
$19K