Stock Trading History of Vaio Bruce A

The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider Vaio Bruce A since year 2005. The trader's CIK number is 1379839. At the time of this reporting, Vaio Bruce A is the Executive VP of Martin Marietta Materials Inc (stock ticker symbol MLM).

Stock purchases, sales, and option exercises reported by *Vaio Bruce A* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2007-02-20	MLM	Martin Marietta Materials Inc	Sale	7,739	129.31	1,000,761
2007-02-20	MLM	Martin Marietta Materials Inc	Option Exercise	10,000	48.00	480,000
2007-02-13	MLM	Martin Marietta Materials Inc	Sale	8,286	123.92	1,026,801
2007-02-13	MLM	Martin Marietta Materials Inc	Option Exercise	10,000	42.38	423,800
2006-12-05	MLM	Martin Marietta Materials Inc	Sale	11,618	101.75	1,182,131
2006-12-05	MLM	Martin Marietta Materials Inc	Option Exercise	15,000	38.32	574,800

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Vaio Bruce A (Executive VP of Martin Marietta Materials Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.