My browser thinks that page is "UTF-16 (Little endian)" encoded. I did this:

use LWP::Simple;
use Encode;

my $p = get( 'http://securities.stanford.edu/1008/UTIIQ96/' );
my $d = decode( 'UTF-16LE', substr( $p, 2 ), 1 );
[download]

After that, $d comes out without all the null characters. I'm using a substr of $p so as to skip over the Byte-order mark.