Stock Trading History of Siekierka Nathan

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 Siekierka Nathan since year 2005. The trader's CIK number is 1430782. At the time of this reporting, Siekierka Nathan is the Vice President of Computer Sciences Corp . (stock ticker symbol CSC). See this page for all insider trading activities at Computer Sciences Corp .

Stock purchases, sales, and option exercises reported by insider *Siekierka Nathan* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2008-05-22	CSC	Computer Sciences Corp	Option Exercise	1,782	.00	0

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 Siekierka Nathan (Vice President of Computer Sciences Corp at the time of this reporting) see the Securities and Exchange Commission (SEC) website.