A. O. Smith director granted 2,296 RSUs

Saak Aaron W reported acquisition or exercise transactions in this Form 4 filing.

Accepted by SEC EDGAR 05/01/2026 - 10:58 AM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Saak Aaron W reported acquisition or exercise transactions in this Form 4 filing.

SMITH A O CORP director Aaron W. Saak received a grant of 2,296 restricted stock units (RSUs) tied to the company’s common stock. The award, dated April 23, 2026, is compensation-related rather than an open-market purchase. Following this grant, Saak holds 2,296 RSUs directly. The company’s plan permits participants to defer receipt of awards, and Saak has elected to defer this RSU grant.

Insider Trade Summary

Grant/Award: 2,296 shares

Grant/Award 1 txn

Insider Saak Aaron W

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	2,296	$65.34	$150K

Holdings After Transaction: Restricted Stock Units — 2,296 contracts (Direct)

Holdings Before and After: Restricted Stock Units, 0 to 2,296 contracts (Direct)

Footnotes (1)

1. F1. The Plan permits the participant to defer the receipt of the award, and Mr. Saak has made a deferral.

Key Figures

RSUs granted: 2,296 units Reference price per RSU: $65.34 Underlying common shares: 2,296 shares +1 more

4 metrics

RSUs granted 2,296 units Restricted stock units granted on April 23, 2026

Reference price per RSU $65.34 Reported transaction price per unit for the RSU grant

Underlying common shares 2,296 shares Common stock underlying the RSU award

Holdings after grant 2,296 RSUs Total restricted stock units held following this transaction

Key Terms

Restricted Stock Units, Common Stock, deferral, Grant, award, or other acquisition

4 terms

Restricted Stock Units financial

"security_title: "Restricted Stock Units""

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Common Stock financial

"underlying_security_title: "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

deferral financial

"The Plan permits the participant to defer the receipt of the award, and Mr. Saak has made a deferral."

Grant, award, or other acquisition financial

"transaction_code_description: "Grant, award, or other acquisition""

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did AOS director Aaron W. Saak report on this Form 4/A?

Director Aaron W. Saak reported receiving a grant of 2,296 restricted stock units. These RSUs are a form of stock-based compensation linked to SMITH A O CORP common stock, rather than shares bought on the open market at the reported reference price.

How many restricted stock units did AOS grant to director Aaron W. Saak?

SMITH A O CORP granted Aaron W. Saak 2,296 restricted stock units. Each RSU represents a right to receive one share of common stock, subject to the plan’s terms and any vesting, settlement, or deferral elections applicable to this specific award.

What is the reference price per unit for Aaron W. Saak’s AOS RSU grant?

The filing shows a reference price of $65.34 per unit for the 2,296 restricted stock units. This price is typically used for reporting and valuation purposes under compensation and disclosure rules, not as an open-market purchase or sale price.

Did Aaron W. Saak buy or sell AOS shares in this Form 4/A filing?

No open-market buying or selling occurred in this filing. Aaron W. Saak acquired 2,296 restricted stock units as a grant or award, which is compensation-related, instead of purchasing or selling existing A. O. Smith common shares in the market.

What does the deferral election mentioned in Aaron W. Saak’s AOS filing mean?

The company’s plan allows participants to defer receiving their stock awards. The footnote states Mr. Saak has made a deferral, meaning he chose to delay actual receipt of the shares underlying his 2,296 restricted stock units under the plan’s rules.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Saak Aaron W

(Last) (First) (Middle)

A. O. SMITH CORPORATION

11270 WEST PARK PLACE

(Street)

MILWAUKEE WISCONSIN 53224

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
SMITH A O CORP [ AOS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/23/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)
04/14/2026

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	$0	04/23/2026		A		2,296		(1)	(1)	Common Stock	2,296	$65.34	2,296	D

Explanation of Responses:

1. The Plan permits the participant to defer the receipt of the award, and Mr. Saak has made a deferral.

Remarks:

	James F. Stern, Attorney-in-Fact for Aaron W. Saak	05/01/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)