use 5.14.2;
use warnings;

use Text::CSV_XS qw(csv);

my (@a, @b);
my $aoa = csv (
    in      => *DATA,
    headers => "skip",
    filter  => {
        1 => sub { push @a, $_; 1 },
        2 => sub { push @b, $_; 0 },
        });

{   local $" = ", ";
    say "var secid = [@a]";
    say "var Initial_shares = [@b]";
    }

__END__
secid,Initial_shares
002826,3777
0028262,3777
0028262,3777
0028262,3777
0028262,3777
0028262,3777