SMITH A O CORP — Director's Dealing 2007

Jul 24, 2007

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SMITH A O CORP (AOS)
CIK: 0000091142
Period of Report: 2007-07-20

Reporting Person: O TOOLE ROBERT J (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2007-07-20	Common Stock	S	400	$50.07	Disposed	348474	Direct
2007-07-20	Common Stock	S	100	$50.09	Disposed	348374	Direct
2007-07-20	Common Stock	S	300	$50.20	Disposed	348074	Direct
2007-07-20	Common Stock	S	2500	$50.2037	Disposed	345574	Direct
2007-07-20	Common Stock	S	200	$50.21	Disposed	345374	Direct
2007-07-20	Common Stock	S	700	$50.25	Disposed	344674	Direct
2007-07-20	Common Stock	S	600	$50.26	Disposed	344074	Direct
2007-07-20	Common Stock	S	900	$50.27	Disposed	343174	Direct
2007-07-20	Common Stock	S	100	$50.28	Disposed	343074	Direct
2007-07-20	Common Stock	S	16500	$50.2901	Disposed	326574	Direct
2007-07-20	Common Stock	S	2400	$50.30	Disposed	324174	Direct
2007-07-20	Common Stock	S	1000	$50.31	Disposed	323174	Direct
2007-07-20	Common Stock	S	500	$50.32	Disposed	322674	Direct
2007-07-20	Common Stock	S	800	$50.33	Disposed	321874	Direct
2007-07-20	Common Stock	S	1800	$50.34	Disposed	320074	Direct
2007-07-20	Common Stock	S	1600	$50.35	Disposed	318474	Direct
2007-07-20	Common Stock	S	300	$50.36	Disposed	318174	Direct
2007-07-20	Common Stock	S	1662	$50.37	Disposed	316512	Direct
2007-07-20	Common Stock	S	1000	$50.38	Disposed	315512	Direct
2007-07-20	Common Stock	S	600	$50.39	Disposed	314912	Direct
2007-07-20	Common Stock	S	400	$50.40	Disposed	314512	Direct
2007-07-20	Common	S	1150	$50.4022	Disposed	313362	Direct
2007-07-20	Common Stock	S	3200	$50.42	Disposed	310162	Direct
2007-07-20	Common Stock	S	1100	$50.43	Disposed	309062	Direct
2007-07-20	Common Stock	S	100	$50.45	Disposed	308962	Direct
2007-07-20	Common Stock	S	100	$50.46	Disposed	308862	Direct
2007-07-20	Common Stock	S	400	$50.47	Disposed	308462	Direct
2007-07-20	Common Stock	S	200	$50.49	Disposed	308262	Direct
2007-07-20	Common Stock	S	1300	$50.50	Disposed	306962	Direct
2007-07-20	Common Stock	S	900	$50.51	Disposed	306062	Direct