X0306 4 2019-07-08 0000091142 SMITH A O CORP AOS 0001236626 SMITH MARK D A. O. SMITH CORPORATION 11270 WEST PARK PLACE MILWAUKEE WI 53224 1 0 0 0 Common Stock 2019-07-08 4 A 0 55 45.88 A 113933 D Common Stock 29500 I In trust Common Stock 8956 I Held by spouse Class A Common Stock 0 Common Stock 0 234327 I In trust Class A Common Stock 0 Common Stock 0 3676 I Held by spouse Payment of retainer in stock under the A. O. Smith Corporation directors' compensation program based on the average of the high and low price of Common Stock on July 8, 2019. The reporting person beneficially owns the shares as settlor of a revocable family trust. Held by spouse 1 for 1 Convertible at any time to Common Stock. None. Held by spouse. James F. Stern, Attorney-in-Fact for Mark D. Smith 2019-07-10