Stock Trading History of Merk Thomas

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 Merk Thomas since year 2005. The trader's CIK number is 1354691. At the time of this reporting, Merk Thomas is the COO - Micro of Rofin Sinar Technologies Inc . (stock ticker symbol RSTI). See this page for all insider trading activities at Rofin Sinar Technologies Inc .

Stock purchases, sales, and option exercises reported by insider *Merk Thomas* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2008-07-01	RSTI	Rofin Sinar Technologies Inc	Purchase	6,000	4.90	29,369
2008-02-04	RSTI	Rofin Sinar Technologies Inc	Sale	6,000	42.70	256,200
2008-02-04	RSTI	Rofin Sinar Technologies Inc	Purchase	6,000	4.90	29,369
2007-05-09	RSTI	Rofin Sinar Technologies Inc	Sale	3,000	69.00	207,000
2007-05-09	RSTI	Rofin Sinar Technologies Inc	Purchase	3,000	8.75	26,250
2006-12-07	RSTI	Rofin Sinar Technologies Inc	Sale	8,000	58.04	464,320

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 Merk Thomas (COO - Micro of Rofin Sinar Technologies Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.