CSX CORP — Director's Dealing 2006

Oct 20, 2006

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CSX CORP (CSX)
CIK: 0000277948
Period of Report: 2006-10-18

Reporting Person: SIZEMORE CAROLYN T (VP and Controller)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2006-10-18	Common Stock	M	2800	$19.7975	Acquired	2800	Direct
2006-10-18	Common Stock	S	2800	$36.13	Disposed	0	Direct
2006-10-18	Common Stock	M	3934	$19.07	Acquired	3934	Direct
2006-10-18	Common Stock	S	3934	$36.13	Disposed	0	Direct
2006-10-18	Common Stock	M	3892	$16.0725	Acquired	3892	Direct
2006-10-18	Common Stock	S	3892	$36.50	Disposed	0	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2006-10-18	Employee Stock Option (right to buy)	$19.7975	M	2800	Disposed	2011-05-17	Common Stock (2800)	Direct
2006-10-18	Employee Stock Option (right to buy)	$19.07	M	3934	Disposed	2012-02-13	Common Stock (3934)	Direct
2006-10-18	Employee Stock Option (right to buy)	$16.0725	M	3892	Disposed	2013-05-07	Common Stock (3892)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	15894.56	Indirect
Common Stock	2088.614	Indirect

Footnotes

F1: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on July 29, 2006.

F2: By Trustee, CSX Corporation Executive Deferred Compensation Plan. The number of shares included in this item reflect 842.117 equivalent shares of cash value held in the CSX Stock Fund, which amounts will fluctuate dependent upon daily net asset value of this fund.

F3: By Trustee, CSX Corporation Tax Savings Thrift Plan. Reflects equivalent shares of cash value held in CSX Stock Fund, which amounts will fluctuate dependent upon daily net asset value of this fund.