Insider Stock Trading History of Stumpf John P


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 Stumpf John P since year 2005. The trader's CIK number is 1382533. At the time of this reporting, Stumpf John P is the VP - Strategic Plann of Mdu Resources Group Inc . (stock ticker symbol MDU). See this page for all insider trading activities at Mdu Resources Group Inc .


Stock purchases, sales, and option exercises reported by insider Stumpf John P since 2005.
  Trade Date   Symbol Company Name (Issuer) Trade Type     Shares       Price ($)   Value ($)
2008-05-23 MDU Mdu Resources Group Inc Sale 5,442 31.62 172,103
2008-05-23 MDU Mdu Resources Group Inc Option Ex 5,442 16.20 88,133
2007-08-28 MDU Mdu Resources Group Inc Buy 187 26.61 4,975

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 Stumpf John P (VP - Strategic Plann of Mdu Resources Group Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.