A. O. Smith Corporation manufactures and markets residential and commercial gas, heat pump and electric water heaters, boilers, tanks, and water treatment products in North America, China, Europe, and India. It operates through two segments, North America and Rest of World. The company offers water heaters for residences, restaurants, hotels and motels, office buildings, laundries, car washes, and small businesses; commercial boilers for hospitals, schools, hotels, and other large commercial buildings, as well as residential boilers for homes, apartments, and condominiums; and water treatment products comprising point-of-entry water softeners, well water solutions, and whole-home water filtration products, on-the-go filtration bottles, point-of-use carbon, and reverse osmosis products for residences, restaurants, hotels, and offices. It also provides food and beverage filtration products; expansion tanks, commercial solar water heating systems, swimming pool and spa heaters, and related products and parts; and heat pumps, electric wall-hung, gas tankless, combi-boiler, heat pump and solar water heaters. The company offers its products primarily under the A. O. Smith, State, Lochinvar, and water softener brands. It distributes its products through independent wholesale plumbing distributors, as well as through retail channels consisting of hardware and home center chains, and manufacturer representative firms; and offers Aquasana branded products directly to consumers through e-commerce, as well as other online retailers. A. O. Smith Corporation was founded in 1874 and is headquartered in Milwaukee, Wisconsin.

A. O. Smith Corporation

Initial Statement of Beneficial Ownership

Insider	Title	Transaction Type	Shares Traded	% of Shares Traded	% Chg. in Shares	End of Filing Shares	Price	Transaction Value	Filing Date	Transaction Date
James F. Stern	Executive VP of Corporate Development and Strategy & Secretary Show All	Other Disposition (Other Disposition)	-2.5K	-0.002205%	-2.5%	96.3K	—	—	02 Dec 2025	01 Dec 2025 - 01 Dec 2025
Paul J. Jones	Senior VP, General Counsel & Chief Compliance Officer Show All	Other Derivative Acquisition (Other Derivative Acquisition)	2.2K	—	62.3%	5.7K	—	—	14 Oct 2025	13 Oct 2025 - 13 Oct 2025
Paul J. Jones	Senior VP, General Counsel & Chief Compliance Officer Show All	Initial Statement of Beneficial Ownership (Initial Statement of Beneficial Ownership)	—	—	—	3.5K	—	—	01 Oct 2025	01 Oct 2025 - 01 Oct 2025
James F. Stern	Executive VP of Corporate Development and Strategy & Secretary Show All	Open Market Disposition (Open Market Disposition)	-17.4K	-0.015258%	-15.0%	98.8K	71.2 - 71.2	-1.2M	07 Aug 2025	07 Aug 2025 - 07 Aug 2025
Charles T. Lauber	Executive VP & CFO Show All	Derivative Exercise and Sale (Derivative Exercise and Sale)	-2.1K	-0.001815%	—	39.9K	31.7 - 70.8	-81.1K	01 Aug 2025	31 Jul 2025 - 31 Jul 2025
Charles T. Lauber
Kevin J. Wheeler
Mark D. Smith
Mark D. Smith
Ming Cheng
Ming Cheng
Stephen M. Shafer
James F. Stern
Mark D. Smith
Lois M. Martin
Christopher L. Mapes
Michael M. Larsen
Ilham Kadri
Victoria M. Holt
Todd W. Fister
Ronald D. Brown
Stephen D. O'brien	—
Stephen D. O'brien	—
Samuel M. Carver
Samuel M. Carver
Kevin J. Wheeler
Kevin J. Wheeler
Kevin J. Wheeler
James F. Stern
James F. Stern