Stock Trading History of Westphal Christoph H

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 Westphal Christoph H since year 2005. The trader's CIK number is 1291961. At the time of this reporting, Westphal Christoph H is the President and CEO of Sirtris Pharmaceuticals, Inc. . (stock ticker symbol SIRT). See this page for all insider trading activities at Sirtris Pharmaceuticals, Inc. .

Stock purchases, sales, and option exercises reported by insider *Westphal Christoph H* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2008-05-29	SIRT	Sirtris Pharmaceuticals, Inc.	Option Exercise	181,796	.76	138,164
2008-03-05	SIRT	Sirtris Pharmaceuticals, Inc.	Sale	6,810	11.55	78,648
2008-03-04	SIRT	Sirtris Pharmaceuticals, Inc.	Sale	8,690	11.53	100,210
2008-01-08	SIRT	Sirtris Pharmaceuticals, Inc.	Sale	20,187	14.32	289,032
2008-01-08	SIRT	Sirtris Pharmaceuticals, Inc.	Sale	19,813	13.54	268,221

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 Westphal Christoph H (President and CEO of Sirtris Pharmaceuticals, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.