Lois M. Martin - 13 Apr 2026 Form 4 Insider Report for SMITH A O CORP (AOS)

Reporting relationship: Director
Issuer ticker: AOS
Reported as of: 13 Apr 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 15 Apr 2026, 15:03:12 UTC
Prior SEC filing: 16 May 2025
Next SEC filing: 15 May 2026
Source filing: View source filing
Reporting owner signature: James F. Stern, Attorney-in-Fact for Lois M. Martin

Key filing fact

Lois M. Martin filed Form 4 for SMITH A O CORP (AOS) on 15 Apr 2026.

Key facts

This page summarizes Lois M. Martin's Form 4 filing for SMITH A O CORP (AOS).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 15 Apr 2026, 15:03.

Change

Previous filing in this sequence was filed on 16 May 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001282708 Primary reporting owner

MARTIN LOIS M

Relationship: Director
Address: A. O. SMITH CORPORATION, 11270 WEST PARK PLACE, MILWAUKEE
Signature: James F. Stern, Attorney-in-Fact for Lois M. Martin
Signature date: 15 Apr 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

AOS transaction

Common Stock

Award

Transaction value
Shares: +2,262
Change %: +54%
Price: $66.32^*
Shares after: 6,445
Date: 13 Apr 2026
Ownership: Direct
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Payment of retainer in stock under the A. O. Smith Corporation directors' compensation program based on the average of the high and low price of Common Stock on April 13, 2026.

Footnote F2

Ms. Martin 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 89 shares of Common Stock.