Stock Trading History of Lawson W Clif

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 Lawson W Clif since year 2005. The trader's CIK number is 1202713. At the time of this reporting, Lawson W Clif is the Executive VP and COO of Pam Transportation Services Inc . (stock ticker symbol PTSI). See this page for all insider trading activities at Pam Transportation Services Inc .

Stock purchases, sales, and option exercises reported by insider *Lawson W Clif* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2000-10-15	PTSI	Pam Transportation Services Inc	Purchase	500	10.03	5,016
2006-08-15	PTSI	Pam Transportation Services Inc	Sale	15,000	27.87	418,110

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 Lawson W Clif (Executive VP and COO of Pam Transportation Services Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.