CSX falls after report Berkshire Hathaway not in market to buy a train company

** Railroad operator CSX's shares CSX.O fall 6.2% to $32.45

** Berkshire Hathaway's BRKa.N Warren Buffett said on CNBC the investment conglomerate is not in the market to buy a train company
** The news comes days after CSX and BNSF announced a new coast-to-coast service

** Earlier this month, activist investor Ancora Holdings urged CSX to evaluate potential tie-ups with Berkshire-owned BNSF Railway and Canadian Pacific Kansas City CP.TO in order to determine the best merger partner

** Buffett did meet with the CEO of CSX and discuss greater cooperation, CNBC report says

** Ancora's move came in response to railroad peer Union Pacific's UNP.N plans to acquire smaller rival Norfolk Southern NSC.N in an $85 billion deal, creating the first U.S. coast-to-coast freight railroad

** Including session moves, CSX's shares had risen 0.5% YTD