Ackerman patricia k - by 401 k plan trust investment history in Smith a o corp

Filed on 2011-12-06 by Ackerman Patricia K SEC CIK 1532645 Form 4

Accession 0000091142-11-000061.txt Sec File: edgar/data/1532645/0000091142-11-000061-index.htm

2011-12-02 Ackerman Patricia K (CIK 1532645) through By 401 K Plan Trust (Vp Investor Relations Treas)

Invested in Smith A O Corp sold 1105 shares at $38.811 remaining shares owned 0

Common Stock Smith A O Corp Aos Transaction code: S Open market or private sale of securities

f1 the number of underlying securities is based on the stock fund balance of december 2, 2011 and varies from previously reported amounts due to changes in the price of a. o. smith corporation common stock. the actual number of shares issuable is not determinable since the stock fund is a unitized account consisting of 97.82% company stock and 2.18% money market fund. the stock account balance reflected in this report is based on a december 2, 2011 stock fund price of $38.811 per share.