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 * STERN JAMES F 2. Issuer Name and Ticker or Trading Symbol SMITH A O CORP [ AOS ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable)_____ Director                    _____ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
Exec VP, General Counsel & Sec
(Last)         (First)         (Middle)
A. O. SMITH CORPORATION, 11270 WEST PARK PLACE
3. Date of Earliest Transaction (MM/DD/YYYY)
2/13/2020
(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  2/13/2020    A    3945 (1) A $43.96  159993  D   
Common Stock  2/13/2020    F    1855  D $43.96  158138  D   

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
Restricted Stock Units  $43.96  2/13/2020    M        3945    (1)  (1) Common Stock  3945  $0  14565  D   

Explanation of Responses:
(1)  3,945 Restricted Stock Units were granted on 02/13/2017, under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. 3,945 Restricted Stock Units vested on 02/13/2020. As a result of vesting, the Company is obligated to deliver 3,945 shares of Common Stock to the reporting person.

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


Exec VP, General Counsel & Sec

Signatures
Wendy L. Grant, Attorney-in-Fact for James F. Stern 2/18/2020
**Signature of Reporting Person Date
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