The following table details the trading activities
(stock purchases, stock sales, and stock option exercises)
the Securities and Exchange Commission (SEC)
by insider Weyerhaeuser William T since year 2005.
The trader's CIK number is 1056916.
At the time of this reporting, Weyerhaeuser William T 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 .
|Trade Date||Symbol||Company Name (Issuer)||Trade Type||Shares||Price ($)||Value ($)|
|2011-04-25||COLB||Columbia Banking System Inc||Option Ex||1,050||14.40||15,120|
|2010-03-17||COLB||Columbia Banking System Inc||Option Ex||1,103||12.00||13,236|
|2009-11-05||CLW||Clearwater Paper Corp||Sale||19,024||48.39||920,571|
|2008-06-30||PCH||Potlatch Corp||Option Ex||37,238||.00||0|
|2008-05-05||PCH||Potlatch Corp||Option Ex||1,504||25.11||37,766|
|2007-10-23||PCH||Potlatch Corp||Option Ex||752||32.10||24,135|
|2006-08-16||PCH||Potlatch Corp||Option Ex||752||29.52||22,197|
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 Weyerhaeuser William T (Director of Columbia Banking System Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.