Cover and table of contents

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Cover and table of contents

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q


☒			QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2025


☐			TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from _____to ______

Commission file number 001-15149

LENNOX INTERNATIONAL INC**.**

Incorporated pursuant to the laws of the State of Delaware

Internal Revenue Service Employer Identification No. 42-0991521

2140 LAKE PARK BLVD., RICHARDSON, Texas, 75080

(972) 497-5000

Securities registered pursuant to Section 12(b) of the Act:


Title of each class			Trading Symbol(s)			Name of each exchange on which registered
Common stock, $0.01 par value per share			LII			New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company" in Rule 12b-2 of the Exchange Act.


Large Accelerated Filer	☒	Accelerated Filer	☐
Non-Accelerated Filer	☐	Smaller Reporting Company	☐
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

As of October 13, 2025, the number of shares outstanding of the registrant’s common stock, par value $0.01 per share, was 35,072,782.

LENNOX INTERNATIONAL INC.

FORM 10-Q

For the three and nine months ended September 30, 2025

INDEX


		Page
Part I	Financial Information
	Item 1. Financial Statements
	Consolidated Balance Sheets - September 30, 2025 (Unaudited) and December 31, 2024	1
	Consolidated Statements of Operations (Unaudited) - Three and Nine Months Ended September 30, 2025 and 2024	2
	Consolidated Statements of Comprehensive Income (Unaudited) - Three and Nine Months Ended September 30, 2025 and 2024	3
	Consolidated Statements of Stockholders' Equity (Unaudited) - Three and Nine Months Ended September 30, 2025 and 2024	4
	Consolidated Statements of Cash Flows (Unaudited) - Nine Months Ended September 30, 2025 and 2024	6
	Notes to Consolidated Financial Statements (Unaudited)	7
	Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations	21
	Item 3. Quantitative and Qualitative Disclosures About Market Risk	30
	Item 4. Controls and Procedures	31
Part II	Other Information
	Item 1. Legal Proceedings	31
	Item 1A. Risk Factors	31
	Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	31
	Item 5. Other Information	32
	Item 6. Exhibits	33

Part I - Financial Information

Next: Item 1. Financial Statements