CSX CORP — Director's Dealing 2006

Oct 17, 2006

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CSX CORP (CSX)
CIK: 0000277948
Period of Report: 2006-10-16

Reporting Person: SIZEMORE CAROLYN T (VP and Controller)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2006-10-16	Common Stock	M	2800	$19.7975	Acquired	2800	Direct
2006-10-16	Common Stock	S	2800	$35.00	Disposed	0	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2006-10-16	Employee Stock Option (right to buy)	$19.7975	M	2800	Disposed	2011-05-17	Common Stock (2800)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	15894.56	Indirect
Common Stock	2088.611	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.

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.