Insider Trading History of Siekierka Nathan

The following table details the insider trading activities (stock purchases, stock sales, and stock option exercises) by Siekierka Nathan since 2008. The trader's CIK number is 1430782. At the time of the last reporting, Siekierka Nathan was the Vice Pres., Human Re of Computer Sciences Corp. (stock ticker symbol CSC). Also see all insider trading activities at Computer Sciences Corp.


Yearly summary of insider trading at Computer Sciences Corp (CSC) by Siekierka Nathan

Insider Buying Insider Sales Option Exercises
Year Symbol Shares Value Shares Value Shares Value
2010 CSC 0 $0 0 $0 2,728 $0
2009 CSC 0 $0 5,000 $277,635 7,995 $234,500
2008 CSC 0 $0 0 $0 1,782 $0


Insider trading of Computer Sciences Corp (CSC) by Siekierka Nathan

Trade Date Symbol Trade Type Shares Price ($) Value ($)
2010-06-18 CSC Option Ex 1,516 .00 0
2010-05-22 CSC Option Ex 1,212 .00 0
2009-12-01 CSC Sale 5,000 55.53 277,635
2009-12-01 CSC Option Ex 5,000 46.90 234,500
2009-05-22 CSC Option Ex 2,995 .00 0
2008-05-22 CSC Option Ex 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 Pres., Human Re of Computer Sciences Corp at the time of this reporting) see the Securities and Exchange Commission (SEC) website.



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