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Stock Trading History of De Rosen Michel

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 De Rosen Michel since year 2005. The trader's CIK number is 1187148. At the time of this reporting, De Rosen Michel is the Chief Executive Officer of Viropharma Inc (stock ticker symbol VPHM).

Stock purchases, sales, and option exercises reported by insider *De Rosen Michel* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2008-02-13	VPHM	Viropharma Inc	Option Exercise	36,900	2.71	99,999
2007-09-04	VPHM	Viropharma Inc	Option Exercise	39,477	2.40	94,744
2007-08-16	VPHM	Viropharma Inc	Purchase	12,120	8.17	99,020
2006-05-09	VPHM	Viropharma Inc	Purchase	10,100	9.84	99,333
2005-05-12	VPHM	Viropharma Inc	Purchase	28,500	3.51	99,949

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 De Rosen Michel (Chief Executive Officer of Viropharma Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.