Get in to this now or you'll miss it
Was he checking and purchasing more railroad stocks? As mentioned before, he owns one major railroad and was purported to be checking out 'CSX'
Even when buffett owned multiple railroad stocks he owned all the big 4 but CSX. I am 100% confident he wouldn't buy csx.. CSX has a trucking business that will start dipping into the railroads profits. Stick to nsc and unp.