FORM 4 [ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      
1. Name and Address of Reporting Person * SMITH MARK D 2. Issuer Name and Ticker or Trading Symbol SMITH A O CORP [ AOS ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable)__X__ Director                    _____ 10% Owner
_____ Officer (give title below)    _____ Other (specify below)
(Last)         (First)         (Middle)
A. O. SMITH CORPORATION, 11270 WEST PARK PLACE
3. Date of Earliest Transaction (MM/DD/YYYY)
8/6/2020
(Street)
MILWAUKEE, WI 53224
(City)       (State)       (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)
 
6. Individual or Joint/Group Filing (Check Applicable Line) _X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock                 112362  D   
Common Stock  8/6/2020    S    29500  D $48.6062  0 (1) I  In trust 
Common Stock                 8956 (2) I  Held by spouse 

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
6. Date Exercisable and Expiration Date 7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Class A Common Stock  $0 (3)                  (4)  (5) Common Stock  0    234327 (1) I  In trust 
Class A Common Stock  $0 (3)                  (4)  (5) Common Stock  0    3676 (2) I  Held by Spouse 

Explanation of Responses:
(1)  The reporting person beneficially owns the shares as settlor of a revocable family trust.
(2)  Held by spouse.
(3)  1 for 1
(4)  Convertible at any time to Common Stock.
(5)  None.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
SMITH MARK D
A. O. SMITH CORPORATION
11270 WEST PARK PLACE
MILWAUKEE, WI 53224
X



Signatures
James F. Stern, Attorney-in-Fact for Mark D. Smith 8/7/2020
**Signature of Reporting Person Date
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