SMITH A O CORP — Director's Dealing 2012

Feb 17, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SMITH A O CORP (AOS)
CIK: 0000091142
Period of Report: 2012-02-16

Reporting Person: Ackerman Patricia K (VP, Investor Relations & Treas)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-02-16	Common Stock	M	1200	$23.76	Acquired	1624	Direct
2012-02-16	Common Stock	M	3300	$19.003	Acquired	4924	Direct
2012-02-16	Common Stock	S	100	$46.1005	Disposed	4824	Direct
2012-02-16	Common Stock	S	100	$46.1104	Disposed	4724	Direct
2012-02-16	Common Stock	S	100	$46.12	Disposed	4624	Direct
2012-02-16	Common Stock	S	400	$46.13	Disposed	4224	Direct
2012-02-16	Common Stock	S	100	$46.14	Disposed	4124	Direct
2012-02-16	Common Stock	S	100	$46.1404	Disposed	4024	Direct
2012-02-16	Common Stock	S	600	$46.15	Disposed	3424	Direct
2012-02-16	Common Stock	S	400	$46.1504	Disposed	3024	Direct
2012-02-16	Common Stock	S	1200	$46.16	Disposed	1824	Direct
2012-02-16	Common Stock	S	100	$46.1601	Disposed	1724	Direct
2012-02-16	Common Stock	S	600	$46.17	Disposed	1124	Direct
2012-02-16	Common Stock	S	300	$46.18	Disposed	824	Direct
2012-02-16	Common Stock	S	100	$46.182	Disposed	724	Direct
2012-02-16	Common Stock	S	300	$46.19	Disposed	424	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-02-16	Employee Stock Options (Right to Buy)	$23.76	M	1200	Disposed	2018-02-11	Common Stock (1200)	Direct
2012-02-16	Employee Stock Options (Right to Buy)	$19.003	M	3300	Disposed	2019-02-09	Common Stock (3300)	Direct

Footnotes

F1: The employee stock options were granted on 02/11/2008 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3.

F2: The employee stock options were granted on 02/09/2009 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3.