Stock Trading History of Massa Ronald E

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 Massa Ronald E since year 2005. The trader's CIK number is 1236638. At the time of this reporting, Massa Ronald E is the Senior Vice President of Smith A O Corp (stock ticker symbol AOS).

Stock purchases, sales, and option exercises reported by *Massa Ronald E* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2007-05-21	AOS	Smith A O Corp	Sale	1,800	39.37	70,859
2007-05-21	AOS	Smith A O Corp	Sale	48,500	39.14	1,898,324
2007-05-21	AOS	Smith A O Corp	Option Exercise	50,300	22.60	1,136,603
2006-04-27	AOS	Smith A O Corp	Sale	2,400	46.80	112,316
2006-04-27	AOS	Smith A O Corp	Sale	53,900	46.63	2,513,244
2006-04-27	AOS	Smith A O Corp	Option Exercise	56,300	28.33	1,594,810

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 Massa Ronald E (Senior Vice President of Smith A O Corp at the time of this reporting) see the Securities and Exchange Commission (SEC) website.