If Warren Buffett liked Burlington Northern Santa Fe in the high $70s, he must love it in the low $60s.
Buffett's Berkshire Hathaway reports in an SEC filing tonight that it bought almost 4.4 million shares in the freight railroad over the last three trading days at prices between $61.65 and $63.43.
Total cost of the 4,363,000 shares comes out to $272.2 million, an average of $62.15 each.
Burlington's stock price has tumbled 25 percent over the past two weeks. It closed at $81.27 on January 6 and finished at $61.25 today, Tuesday.