For the quarterly period ended March 31, 2026.or TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from __________ to __________Commission File Number 1-475________________________________ A. O. Smith Corporation (Exact name of registrant as specified in its charter)________________________________ Delaware(State of Incorporation) 11270 West Park Place, Milwaukee, Wisconsin(Address of Principal Executive Office)39-0619790(I.R.S. EmployerIdentification No.)53224-9508(Zip Code)(414) 359-4000(Registrant’s telephone number, including area code)_________________________________________________ Securities registered pursuant to Section12(b) of the Act: Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities ExchangeAct of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has beensubject to such filing requirements for the past 90 days.☒YesNo Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant toRule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant wasrequired to submit such files).☒YesNo Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reportingcompany, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,”and “emerging growth company” in Rule 12b-2 of the Exchange Act. Large accelerated filer☒Non-accelerated filer☐ AcceleratedFiler☐Smaller reporting company☐Emerging growth company☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complyingwith any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act.)☐Yes☒No Class A Common Stock Outstanding as of April28, 2026 - 25,863,159 shares Common Stock Outstanding as of April28, 2026 - 111,965,465 shares Index A. O. Smith Corporation Part I.FINANCIAL INFORMATIONCondensed Consolidated Statements of Earnings - Three Months Ended March 31, 2026 and 20253Condensed Consolidated Statements of Comprehensive Earnings - Three Months EndedMarch 31, 2026 and20253Condensed Consolidated Balance Sheets - March 31, 2026and December31, 20254Condensed Consolidated Statements of Cash Flows - Three Months EndedMarch 31, 2026 and 20255Condensed Consolidated Statements of Stockholders’ Equity - Three Months Ended March 31, 2026 and 20256Notes to Condensed Consolidated Financial Statements - March 31, 20267-17Item 2.Management’s Discussion and Analysis of Financial Condition and Results of Operations18-23Item 3.Quantitative and Qualitative Disclosures about Market Risk23Item 4.Controls and Procedures24PartII.OTHER INFORMATIONItem 1.Legal Proceedings24Item 2.Unregistered Sales of Equity Securities, Use of Proceeds, and Issuer Purchases of Equity Securities24Item 5.Other Information24Item 6.Exhibits24Index to Exhibits25Signatures26 A. O. SMITH CORPORATIONCONDENSED CONSOLIDATED STATEMENTS OF EARNINGS(dollars in millions, except for per share data)(unaudited) Three Months EndedMarch 31,20262025Net sales$945.6$963.9Cost of products sold579.9588.5Gross profit365.7375.4Selling, general and administrative expenses203.9192.6Interest expense7.12.9Other income, net—(1.2)Earnings before provision for income taxes154.7181.1Provision for income taxes36.744.5Net Earnings$118.0$136.6Basic Net Earnings Per Share of Common Stock$0.85$0.95Diluted Net Earnings Per Share of Common Stock$0.85$0.95Dividends Per Share of Common Stock$0.36$0.34 Three Months EndedMarch 31,20262025Net earnings$118.0$136.6Other comprehensive (loss) earningsForeign currency translation adjustments(3.5)0.7Unrealized gains on cash flow derivative instruments, less related income provision of $(0.4) in2026, and $(0.3) in 20251.30.8Adjustment to pension liability, less related income tax provision of $0.0 in 2026 and $0.0 20250.10.1Comprehensive Earnings$115.9$138.2 A. O. SMITH CORPORATIONCONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS(dollars in millions)(unaudited) A. O. SMITH CORPORATIONCONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY(dollars in millions)(unaudited) A. O. SMITH CORPORATIONNOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTSMarch31, 2026(unaudited) 1. Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accountingprinciples generally accepted in the United States (GAAP) for interim financial information and pursuant to the rules and regulationsof