Insider Stock Trading History of Stone Mark J


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 Stone Mark J since year 2005. The trader's CIK number is 1258539. At the time of this reporting, Stone Mark J is the Director of Northern Technologies International Corp . (stock ticker symbol NTIC). See this page for all insider trading activities at Northern Technologies International Corp .


Stock purchases, sales, and option exercises reported by insider Stone Mark J since 2005.
  Trade Date   Symbol Company Name (Issuer) Trade Type     Shares       Price ($)   Value ($)
2012-08-10 NTIC Northern Technologies International Corp Sale 2,059 9.85 20,289
2012-02-28 NTIC Northern Technologies International Corp Sale 6,700 15.20 101,840
2012-02-27 NTIC Northern Technologies International Corp Sale 100 15.70 1,570
2011-08-31 NTIC Northern Technologies International Corp Sale 2,000 16.20 32,400
2011-08-31 NTIC Northern Technologies International Corp Option Ex 2,000 8.01 16,020
2010-11-29 NTIC Northern Technologies International Corp Sale 2,000 14.39 28,786
2010-08-30 NTIC Northern Technologies International Corp Option Ex 2,000 5.75 11,500
2007-08-21 NTI Northern Technologies International Corp Option Ex 3,000 5.28 15,825
2006-01-31 NTIC Northern Technologies International Corp Sale 5,000 4.68 23,400

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 Stone Mark J (Director of Northern Technologies International Corp at the time of this reporting) see the Securities and Exchange Commission (SEC) website.