X0303 4 2010-01-08 0 0000277948 CSX CORP CSX 0001237371 MUNOZ OSCAR C/O CSX CORP 500 WATER STREET, 15TH FLOOR JACKSONVILLE FL 32202 0 1 0 0 Executive Vice President & CFO Common Stock 2010-01-08 4 S 0 35000 51.30 D 233727 D The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on October 16, 2009. The plan has been approved pursuant to the terms of the Issuer's policies and is part of the Reporting Person's strategy to diversify assets. The price shown is the weighted average price at which shares were sold in multiple transactions pursuant to a single market order. The range of prices for the transactions made was $51.20 to $51.40. Upon request of the SEC staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each price. /s/ Nathan D. Goldman Attorney-in-Fact 2010-01-11