Insider Stock Trading History of Matson Tom Sr


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 Matson Tom Sr since year 2005. The trader's CIK number is 1186651. At the time of this reporting, Matson Tom Sr is the Director of Columbia Banking System Inc . (stock ticker symbol COLB). See this page for all insider trading activities at Columbia Banking System Inc .


Stock purchases, sales, and option exercises reported by insider Matson Tom Sr since 2005.
  Trade Date   Symbol Company Name (Issuer) Trade Type     Shares       Price ($)   Value ($)
2008-06-05 COLB Columbia Banking System Inc Option Ex 1,820 9.90 18,018

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 Matson Tom Sr (Director of Columbia Banking System Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.