SMITH A O CORP (AOS) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-03-04 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: SMITH A O CORP (AOS) CIK: 0000091142 --- Reporting Owner --- Name: Schuh Darrell W. CIK: 0002016343 Role: Officer (SVP; President & GM Lochinvar) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-03-04 | Code: S (Open market sale) Shares: -1,104 | Price: $74.39 Total Value: $82,126.34 Shares Owned After: 2,201 | Ownership: D (Direct) Footnotes: [F1] The price in Column 4 is a weighted average price. The prices actually received ranged from $74.26 to $74.52. The reporting person has provided to the issuer, and will provide to any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range for all transactions reported on this Form 4 utilizing an average weighted price. [F2] Mr. Schuh is a participant in the A. O. Smith Dividend Reinvestment Plan ('Plan") and receives a quarterly dividend pursuant to the Plan. The total amount of dividends received was 10 shares of Common Stock. --- Footnotes (Complete Index) --- F1: The price in Column 4 is a weighted average price. The prices actually received ranged from $74.26 to $74.52. The reporting person has provided to the issuer, and will provide to any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range for all transactions reported on this Form 4 utilizing an average weighted price. F2: Mr. Schuh is a participant in the A. O. Smith Dividend Reinvestment Plan ('Plan") and receives a quarterly dividend pursuant to the Plan. The total amount of dividends received was 10 shares of Common Stock. --- Signature --- /s/ James F. Stern, Attorney-in-Fact for Darrell W. Schuh (2026-03-04)