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: 2026-07-01 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: SMITH A O CORP (AOS) CIK: 0000091142 --- Reporting Owner --- Name: Anderson Carrie L CIK: 0001706446 Role: Officer (EVP & CFO) --- Derivative Transactions --- [Transaction #1] Security: Restricted Stock Units Date: 2026-07-01 | Code: A (Grant or award) Shares: +32,060 | Price: $62.38 Shares Owned After: 32,060 | Ownership: D (Direct) Footnotes: [F1] Each restricted stock unit represents the right to receive, at settlement, one share of Common Stock. [F2] The restricted stock units were granted on 07/01/2026 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units become payable in Common Stock on the vesting date of 07/01/2032. [F2] The restricted stock units were granted on 07/01/2026 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units become payable in Common Stock on the vesting date of 07/01/2032. --- Footnotes (Complete Index) --- F1: Each restricted stock unit represents the right to receive, at settlement, one share of Common Stock. F2: The restricted stock units were granted on 07/01/2026 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units become payable in Common Stock on the vesting date of 07/01/2032. --- Signature --- /s/ Paul J. Jones, Attorney-in-Fact for Carrie L. Anderson (2026-07-02)