SMITH A O CORP — Director's Dealing 2007

Jul 23, 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: KITA JOHN J (Senior V.P., Corp. Fin. & Cont)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2007-07-20	Common Stock	M	6300	$29.031	Acquired	18097	Direct
2007-07-20	Common Stock	M	9650	$15.135	Acquired	27747	Direct
2007-07-20	Common Stock	S	3450	$50.1354	Disposed	24297	Direct
2007-07-20	Common Stock	S	2500	$50.2037	Disposed	21797	Direct
2007-07-20	Common Stock	S	100	$50.34	Disposed	21697	Direct
2007-07-20	Common Stock	S	100	$50.35	Disposed	21597	Direct
2007-07-20	Common Stock	S	100	$50.37	Disposed	21497	Direct
2007-07-20	Common Stock	S	200	$50.39	Disposed	21297	Direct
2007-07-20	Common Stock	S	200	$50.42	Disposed	21097	Direct
2007-07-20	Common Stock	S	200	$50.43	Disposed	20897	Direct
2007-07-20	Common Stock	S	100	$50.45	Disposed	20797	Direct
2007-07-20	Common Stock	S	100	$50.46	Disposed	20697	Direct
2007-07-20	Common Stock	S	400	$50.47	Disposed	20297	Direct
2007-07-20	Common Stock	S	100	$50.49	Disposed	20197	Direct
2007-07-20	Common Stock	S	1500	$50.50	Disposed	18697	Direct
2007-07-20	Common Stock	S	900	$50.51	Disposed	17797	Direct
2007-07-20	Common Stock	S	100	$50.52	Disposed	17697	Direct
2007-07-20	Common Stock	S	100	$50.56	Disposed	17597	Direct
2007-07-20	Common Stock	S	100	$50.57	Disposed	17497	Direct
2007-07-20	Common Stock	S	100	$50.62	Disposed	17397	Direct
2007-07-20	Common Stock	S	5000	$50.66	Disposed	12397	Direct
2007-07-20	Common Stock	S	100	$50.68	Disposed	12297	Direct
2007-07-20	Common Stock	S	100	$50.72	Disposed	12197	Direct
2007-07-20	Common Stock	S	100	$50.73	Disposed	12097	Direct
2007-07-20	Common Stock	S	300	$50.78	Disposed	11797	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2007-07-20	Employee Stock Options (Right to Buy)	$29.031	M	6300	Disposed	2009-10-13	Common Stock (6300)	Direct
2007-07-20	Employee Stock Options (Right to Buy)	$15.135	M	9650	Disposed	2011-10-09	Common Stock (9650)	Direct

Footnotes

F1: Granted on 10/13/1999 under the A. O. Smith Corporation Long-Term Executive Incentive Compensation Plan, a transaction exempt under Rule 16b-3.

F2: Granted on 10/09/2001 under the A. O. Smith Corporation Long-Term Executive Incentive Compensation Plan, a transaction exempt under Rule 16b-3.