Stock Trading History of Siebecker Walter F

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 Siebecker Walter F since year 2005. The trader's CIK number is 1164872. At the time of this reporting, Siebecker Walter F is the Director of Factset Research Systems Inc . (stock ticker symbol FDS). See this page for all insider trading activities at Factset Research Systems Inc .

Stock purchases, sales, and option exercises reported by insider *Siebecker Walter F* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2008-10-15	FDS	Factset Research Systems Inc	Option Exercise	10,000	42.56	425,600
2008-06-20	FDS	Factset Research Systems Inc	Sale	5,000	65.56	327,800
2008-01-03	FDS	Factset Research Systems Inc	Option Exercise	45,000	6.26	281,875

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 Siebecker Walter F (Director of Factset Research Systems Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.