Company: AOS
Filing Date: 2025-06-30
Form Type: 11-K
Source: 0000091142-25-000086
Chunk: 4

Company: SMITH A O CORP
Filing Date: 2025-06-30
Form: 11-K
Chunk 4
---
 increases                                                         |     |      | 102,179,714 |             |     |      | 119,893,637 |             |
| Decreases:                                                              |     |      |             |             |     |      |             |             |
| Benefit and withdrawal payments                                         |     |      |  68,918,435 |             |     |      |  48,626,021 |             |
| Change in net assets available before transfers                         |     |      |             |  33,261,279 |     |      |             |  71,267,616 |
| Transfers from other plans                                              |     |      |             |   1,712,980 |     |      |             |   2,534,263 |
| Change in net assets available for benefits                             |     |      |             |  34,974,259 |     |      |             |  73,801,879 |
| Net assets available for benefits:                                      |     |      |             |             |     |      |             |             |
| Beginning of year                                                       |     |      |             | 582,729,048 |     |      |             | 508,927,169 |
| End of year                                                             |     | $    | 617,703,307 |             |     | $    | 582,729,048 |             |

<div align='center'>The accompanying notes to the financial statements

are an integral part of this statement.

7</div>

#### A. O. SMITH

### RETIREMENT SECURITY PLAN

### Notes to Financial Statements

#### December 31, 2024 and 2023
1. Description of Plan and Significant Accounting Policies

The A. O. Smith Retirement Security Plan (the Plan) was originally established as the A.O. Smith Profit Sharing Retirement Plan (the Plan) in 1956. Effective January 1, 2010, the Plan was renamed the A. O. Smith Retirement Security Plan and the accounts of all non-union participants maintained under the A. O. Smith Corporation Savings Plan were transferred into the Plan. The Plan generally covers salaried or commissioned employees of A. O. Smith Corporation (the Company), its subsidiaries and affiliates and the non-union hourly employees of the Company’s facilities in Appleton, WI; Ashland City, TN; Austin, TX; Charlotte, NC; Chicago, IL; Cookeville, TN; Dallas, TX; El