Stock Trading History of St John Thomas 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 St John Thomas P since year 2005. The trader's CIK number is 1222254. At the time of this reporting, St John Thomas P is the VP, Therapeutic Development of Icos Corp / De (stock ticker symbol ICOS).

Stock purchases, sales, and option exercises reported by *St John Thomas P* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2007-01-04	ICOS	Icos Corp / De	Option Exercise	36,275	8.61	312,291
2006-12-05	ICOS	Icos Corp / De	Option Exercise	7,932	23.18	183,892
2006-05-01	ICOS	Icos Corp / De	Sale	5,585	21.70	121,205
2006-04-28	ICOS	Icos Corp / De	Option Exercise	1,100	7.88	8,662
2006-05-01	ICOS	Icos Corp / De	Option Exercise	5,585	7.88	43,981
2006-02-10	ICOS	Icos Corp / De	Option Exercise	4,415	7.88	34,768

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 St John Thomas P (VP, Therapeutic Development of Icos Corp / De at the time of this reporting) see the Securities and Exchange Commission (SEC) website.