Lennox International 10-Q 2026-06-30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

For the quarterly period ended June 30, 2026

OR

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:

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.

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 July 22, 2026, the number of shares outstanding of the registrant’s common stock, par value $0.01 per share, was 34,560,675.

LENNOX INTERNATIONAL INC.

FORM 10-Q

For the three and six months ended June 30, 2026

INDEX

i

Part I - Financial Information

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

The accompanying notes are an integral part of these consolidated financial statements.

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited)

Showing the first 8K of 100K characters. Open the full section

This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934 (the "Exchange Act"), as amended, that are based on information currently available to management as well as management’s assumptions and beliefs as of the date such statements were made. All statements, other than statements of historical fact, included in this Quarterly Report on Form 10-Q constitute forward-looking statements, including but not limited to statements identified by forward-looking terminology, such as the words “may,” “will,” “should,” “plan,” “anticipate,” “believe,” “intend,” “estimate,” and “expect” and similar expressions. Such statements reflect our current views with respect to future events, based on what we believe are reasonable assumptions; however, such statements are subject to certain risks and uncertainties.

In addition to the specific uncertainties discussed elsewhere in this Quarterly Report on Form 10-Q, the risk factors set forth in Part I, “Item 1A. Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2025, and those set forth in Part II, “Item 1A. Risk Factors” of this report, if any, may affect our performance and results of operations. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may differ materially from those in the forward-looking statements. We disclaim any intention or obligation to update or review any forward-looking statements or information, whether as a result of new information, future events or otherwise, except as required by law.

Business Overview

We operate in two reportable business segments of the HVACR industry, Home Comfort Solutions and Building Climate Solutions. For more detailed information regarding our reportable segments, see Note 2 in the Notes to the Consolidated Financial Statements.

Our fiscal quarterly periods are comprised of approximately 13 weeks, but the number of days per quarter may vary year-over-year. Our quarterly reporting periods usually end on the Saturday closest to the last day of March, June, and September. Our fourth quarter and fiscal year ends on December 31, regardless of the day of the week on which December 31 falls. For convenience, throughout this Management’s Discussion and Analysis of Financial Condition and Results of Operations, the 13-week periods comprising each fiscal quarter are denoted by the last day of the respective calendar quarter.

We sell our products and services through a combination of direct sales, distributors and company-owned stores. The demand for our products and services is seasonal and can be significantly impacted by the weather. Warmer than normal summer temperatures generate demand for replacement air conditioning and refrigeration products and services, and colder than normal winter temperatures have a similar effect on heating products and services. Conversely, cooler than normal summers and warmer than normal winters depress the demand for HVACR products and services. In addition to weather, demand for our products and services is influenced by national and regional economic and demographic factors, such as interest rates, the availability of financing, regional population and employment trends, new construction, general economic conditions, and consumer spending habits and confidence. A substantial portion of the sales in each of our business segments is attributable to replacement business, with the balance comprised of new construction business.

The principal elements of cost of goods sold are components, raw materials, factory overhead, labor, estimated costs of warranty expense, and freight and distribution costs. The principal raw materials used in our manufacturing processes are steel, aluminum and copper. In recent years, pricing volatility for these commodities and related components has impacted us and the HVACR industry in general. We seek to mitigate the impact of certain commodity price volatility and tariffs through a combination of pricing actions, vendor contracts, improved production efficiency, and cost reduction initiatives. We also partially mitigate volatility in the prices of these commodities by entering into futures contracts and fixed forward contracts.

Financial Overview

Results for the second quarter of 2026 were mixed as our Home Comfort Solutions segment faced volume headwinds driven by market softness. Overall our net sales increased 3% and our segment profit was relatively flat as compared to prior year. For our Home Comfort Solutions segment, net sales decreased 7% and segment profit decreased $30 million. For our Building Climate Solutions segment, net sales increased 24% and segment profit increased $35 million.

Financial Highlights

• Net sales of $1,545 million in the second quarter of 2026 reflected a 3% increase as compared to the same period in 2025.

• Operating income in the second quarter of 2026 increased $6 million to $355 million as favorable mix and price were partially offset by lower sales volumes, higher product costs and higher freight and distribution costs.

• Net income for the second quarter of 2026 was $269 million.

• Diluted earnings per share was $7.72 per share in the second quarter of 2026 as compared to $7.71 per share in the same period in 2025.

• For the six months ended June 30, 2026, we returned $91 million to shareholders through dividend payments and repurchased $151 million of common stock through our share repurchase program.

Recent Developments

Throughout 2025 and 2026, the U.S. government implemented new tariff measures under various authorities, including the International Emergency Economic Powers Act ("IEEPA") and Sections 122, 232, and 301 of the Trade Expansion Act of 1962.

In February 2026, the U.S. Supreme Court ruled against tariffs imposed under IEEPA, and U.S. Customs and Border Protection is now processing valid court-ordered IEEPA refunds. The ruling did not repeal Section 232 tariffs on steel, copper, and aluminum or Section 301 tariffs on covered Chinese HVAC imports.

Following this ruling, the U.S. presidential administration imposed a temporary surcharge, known as Section 122, which applied a 10% global tariff on most imported products, effective through July 24, 2026. The temporary surcharge was replaced by a new Section 301 forced labor tariffs framework of 10% or 12.5%, covering imports from 60 trading partners. Section 232 articles and qualifying USMCA goods are excluded from this new framework. Section 232 tariffs also continued to evolve, with modifications implemented in April and June 2026. The Company is evaluating the potential impact of all tariff actions on future material costs and sourcing decisions.

Three Months Ended June 30, 2026 Compared to Three Months Ended June 30, 2025 - Consolidated Results

The following table provides a summary of our financial results, including information presented as a percentage of net sales:

Net Sales

Net sales for the second quarter of 2026 increased 3% as compared to the same period in 2025 primarily due to a 3% increase from favorable mix and price and a 4% increase in sales volumes from completed acquisitions, which were partially offset by a 4% decrease in sales volumes.

Gross Profit

Gross profit margins in the second quarter of 2026 increased 40 basis points ("bps") to 34.9% as compared to 34.5% in the same period in 2025. Gross margins increased 120 bps from favorable mix and price and 40 bps from sales volumes from completed acquisitions, which were partially offset by 80 bps from higher product costs, primarily reflecting inflation and factory under absorption, net of $30 million in tariff refunds, and 40 bps from higher freight and distribution inflation and investments.

Selling, General and Administrative Expenses

Selling, general and administrative expenses ("SG&A") increased $10 million to $183 million in the second quarter of 2026 as compared to $173 million in the same period in 2025, primarily attributable to higher discretionary and employee-related costs and the acquisition of Duro Dyne and Supco in the fourth quarter of 2025.

Losses (Gains) and Other Expenses, Net

Losses (gains) and other expenses, net for the second quarter of 2026 and 2025 included the following (in millions):

Income from Equity Method Investments

Investments over which we do not exercise control but have significant influence are accounted for using the equity method of accounting. Income from equity method investments was de minimis in the second quarter of 2026, consistent with 2025.

Interest Expense, net

Interest expense, net increased to $15 million in the second quarter of 2026 from $8 million in the same period in 2025 primarily due to increased borrowings on our commercial paper facility and our term loan agreement entered into in October of 2025.

Income Taxes

Our effective tax rate was 20.8% for the second quarter of 2026 as compared to 19.4% in the same period in 2025. The increase in the rate is primarily due to higher income in higher tax jurisdictions.

Second Quarter of 2026 Compared to Second Quarter of 2025 - Results by Segment

Home Comfort Solutions

The following table presents our Home Comfort Solutions segment's net sales and profit for the second quarter of 2026 and 2025 (dollars in millions):

Net sales decreased 7% in the second quarter of 2026 as compared to the same period in 2025 primarily due to a 12% decrease in sales volumes, which was partially offset by a 3% increase from favorable mix and price and a 2% increase in sales

volumes from completed acquisitions.

Segment profit in the second quarter of 2026 decreased $30 million as compared to the same period in 2025, primarily due to lower sales volumes, which resulted in a $49 million profit headwind, $3 million from increased freight and distribution costs, $2 million from product cost inflation and lower factory absorption, net of $25 million in tariff refunds, and $8 million from miscellaneous other costs. These impacts were partially offset by a $24 million benefit from favorable mix and price, $5 million from completed acquisitions, and $3 million from SG&A improvement.

Building Climate Solutions

The following table presents our Building Climate Solutions segment's net sales and profit for the second quarter of 2026 and 2025 (dollars in millions):

Net sales increased 24% in the second quarter of 2026 as compared to the same period in 2025 primarily due to a 12% increase in sales volumes, a 9% increase in sales volumes from completed acquisitions, and 3% from favorable mix and price.

Segment profit in the second quarter of 2026 increased $35 million as compared to the same period in 2025 primarily due to $23 million profit benefit from higher sales volumes, $15 million increase from favorable mix and price, and $11 million profit benefit from sales volumes from completed acquisitions, which were partially offset by $9 million in product cost inflation and lower factory absorption, net of $5 million in tariff refunds, and $5 million from other costs.

Year-to-Date through June 30, 2026 Compared to Year-to-Date through June 30, 2025 - Consolidated Results

The following table provides a summary of our financial results, including information presented as a percentage of net sales:

Net Sales

Net sales increased 4% for the six months ended June 30, 2026 as compared to the same period in 2025, primarily due to a 5% increase from favorable mix and price and a 5% increase in sales volumes from completed acquisitions, which were partially offset by a 6% decrease in sales volumes.

Gross Profit

Gross profit margins for the six months ended June 30, 2026 decreased 20 bps to 33.2% as compared to 33.4% in the same period in 2025. Gross margins decreased 170 bps from higher product costs, primarily reflecting inflation and factory under absorption, net of $30 million in tariff refunds, 40 bps from higher freight and distribution costs, and 20 bps from miscellaneous

costs, which were partially offset by 180 bps from favorable mix and price and 30 bps from completed acquisitions.

Selling, General and Administrative Expenses

SG&A increased $24 million to $368 million for the six months ended June 30, 2026 as compared to $345 million in the same period in 2025 primarily attributable to higher discretionary and employee-related costs and the acquisition of Duro Dyne and Supco in the fourth quarter of 2025. As a percentage of net sales, SG&A increased 30 bps to 13.7% from 13.4%.

Losses (Gains) and Other Expenses, Net

Losses (gains) and other expenses, net for the six months ended June 30, 2026 and 2025 included the following (in millions):

Income from Equity Method Investments

Investments over which we do not exercise control but have significant influence are accounted for using the equity method of accounting. Income from equity method investments decreased slightly to $1 million for the six months ended June 30, 2026 as compared to $3 million the same period in 2025.

Interest Expense, net

Interest expense, net increased $15 million for the six months ended June 30, 2026 to $30 million as compared to $15 million in the same period in 2025 primarily due to increased borrowings on our commercial paper facility and our term loan agreement entered into in October of 2025.

Income Taxes

Our effective tax rate was 20.6% for the six months ended June 30, 2026 as compared to 19.4% in the same period in 2025. The increase in the rate was primarily due to higher income in higher tax jurisdictions.

Year-to-Date through June 30, 2026 Compared to Year-to-Date through June 30, 2025 - Results by Segment

Home Comfort Solutions

The following table presents our Home Comfort Solutions segment's net sales and profit for the six months ended June 30, 2026 and 2025 (dollars in millions):

Net sales decreased 8% for the six months ended June 30, 2026 as compared to the same period in 2025 primarily due to a 16% decrease in sales volumes, which was partially offset by a 6% increase from favorable mix and price and a 2% increase in sales volumes from completed acquisitions.

Segment profit for the first six months of 2026 decreased by $68 million as compared to the same period in 2025, primarily due to lower sales volumes, which resulted in $104 million profit headwind, $25 million from product cost inflation and lower factory absorption, net of $25 million in tariff refunds, $4 million from higher freight and distribution and $8 million from miscellaneous costs. These impacts were partially offset by a $65 million benefit from favorable mix and price and $8 million from completed acquisitions.

Building Climate Solutions

The following table presents our Building Climate Solutions segment's net sales and profit for the six months ended June 30, 2026 and 2025 (dollars in millions):

Net sales increased 30% for the six months ended June 30, 2026 as compared to the same period in 2025 primarily due to a 14% increase in sales volumes, a 10% increase in sales volumes from completed acquisitions, and 6% from favorable mix and price.

Segment profit for the first six months of 2026 increased $72 million as compared to the same period in 2025 primarily due to $47 million profit benefit from higher sales volumes, $37 million increase from favorable mix and price, and $18 million profit benefit from sales volumes from completed acquisitions, which were partially offset by $17 million from product cost inflation and lower factory absorption, net of $5 million in tariff refunds, $8 million in increased SG&A costs, and $5 million from freight and distribution costs.

Liquidity and Capital Resources

Our working capital and capital expenditure requirements are generally met through internally generated funds, bank lines of credit and a commercial paper program (as described below). Working capital needs are generally greater in the first and second quarters due to the seasonal nature of our business cycle.

Statement of Cash Flows

The following table summarizes our cash flow activity for the six months ended June 30, 2026 and 2025 (in millions):

Net Cash Provided By Operating Activities - The change in net cash provided by operating activities for the six months ended June 30, 2026 compared to the net cash provided by operating activities for the same period in 2025 is primarily due to favorable working capital changes.

Net Cash Used In Investing Activities - Capital expenditures were $91 million for the six months ended June 30, 2026 compared to $54 million in the same period of 2025. The increase in capital expenditures was primarily driven by strategic investments in land and buildings that will support future product innovation centers.

Net Cash Used In Financing Activities - Net cash used in financing activities for the six months ended June 30, 2026 decreased to $76 million as compared to $368 million used during the same period of 2025. The change was primarily due to changes in net borrowings and repayments of long-term debt and repurchases of common stock through our share repurchase

program. We repurchased $151 million of shares for the six months ended June 30, 2026 and returned $91 million to shareholders through dividend payments.

Debt Position

The following table details our lines of credit and financing arrangements as of June 30, 2026 (in millions):

Commercial Paper Program

We utilize a commercial paper program (the "Program") pursuant to which we may issue short-term, unsecured commercial paper notes (the "CP Notes") under the exemption from registration contained in Section 4(a)(2) of the Securities Act of 1933, as amended. Amounts available under the Program may be borrowed, repaid, and re-borrowed from time to time, with the aggregate face or principal amount of the CP Notes outstanding under the Program at any time not to exceed $500.0 million. The CP Notes have maturities of up to 397 days from the date of issue and rank pari passu with all of our other unsecured and unsubordinated indebtedness. The net proceeds from issuances of the CP Notes are typically used for general corporate purposes. Our revolving credit facility serves as a liquidity backstop for the repayment of CP Notes outstanding under the Program. There are $412.0 million CP Notes outstanding under the Program as of June 30, 2026.

Credit Agreement

On May 9, 2025, we entered into an Amendment and Restatement Agreement (the "Credit Agreement") to our existing unsecured revolving credit facility with JPMorgan Chase Bank, N.A., as administrative agent, and the other lenders party thereto. The Credit Agreement decreased our total revolving commitments from $1.1 billion to $1.0 billion with an option to increase the revolving commitments by up to $350 million at our request, subject to the terms and conditions of the Credit Agreement. The Credit Agreement also extended the maturity date of the revolving commitments from July 2026 to May 2030. We had no outstanding borrowings and $1.7 million committed to standby letters of credit as of June 30, 2026. Subject to covenant limitations, $586.3 million was available for future borrowings after taking into consideration outstanding borrowings under our Program. Availability under the Credit Agreement is reduced by borrowings under the Program. The Credit Agreement includes a subfacility for swingline loans up to $65.0 million. Maturity of the Credit Agreement may be extended by the lenders pursuant to two one-year extension options that we may request under the Credit Agreement.

Term Loan

On October 16, 2025, we entered into a Term Credit Agreement (the “Term Credit Agreement”) with Wells Fargo Bank, National Association, as administrative agent, and the other lenders party thereto. We borrowed $300.0 million pursuant to the Term Credit Agreement and used the net proceeds to repay existing borrowings under the Credit Agreement. The Term Credit Agreement matures on October 16, 2027. Loans under the Term Credit Agreement bear interest at our election at a rate per annum equal to (i) a forward-looking term rate based on the secured overnight financing rate for the applicable interest period ("Term SOFR"), plus an applicable margin ranging between 0.90% and 1.025% per annum depending on our long-term unsecured debt rating, or (ii) the highest of the Wells Fargo Bank, National Association prime rate, the Federal Funds rate plus

0.50%, and Term SOFR for a one month tenor in effect on such day plus 1.00%, plus an applicable margin ranging between 0.00% and 0.025% per annum depending on our long-term unsecured debt rating.

The Term Credit Agreement contains customary covenants and events of default that are substantially similar to the existing covenants and events of default in our Credit Agreement.

Senior Unsecured Notes

In September 2023, we issued $500.0 million of senior unsecured notes, which will mature in September 2028 (the "2028 Notes") with interest being paid semi-annually in March and September at 5.50%. In July 2020, we issued $300.0 million of senior unsecured notes, which will mature on August 1, 2027 (the "2027 Notes," and collectively with the 2028 Notes, the "Notes") with interest being paid semi-annually in February and August at 1.70% per annum. On August 1, 2025, we repaid upon maturity $300.0 million of senior unsecured notes originally issued in 2020.

In the event of a credit rating downgrade below investment grade resulting from a change of control, holders of our senior unsecured notes will have the right to require us to repurchase all or a portion of the senior unsecured notes at a repurchase price equal to 101% of the principal amount of the notes, plus accrued and unpaid interest, if any. All the Notes are guaranteed, on a senior unsecured basis, by certain of our subsidiaries that guarantee indebtedness under our Credit Agreement (the "Guarantor Subsidiaries"). The indenture governing the Notes contains covenants that, among other things, limit our ability and the ability of the Guarantor Subsidiaries to: create or incur certain liens; enter into certain sale and leaseback transactions; and enter into certain mergers, consolidations and transfers of substantially all of our assets. The indenture also contains a cross default provision which is triggered if we default on other debt of at least $75.0 million in principal which is then accelerated, and such acceleration is not rescinded within 30 days of the notice date. We are currently in compliance with all covenant requirements.

Financial Leverage

We periodically review our capital structure to ensure the appropriate levels of leverage and liquidity. We may access the capital markets, as necessary, based on business needs and to take advantage of favorable interest rate environments or other market conditions. We also evaluate our debt-to-capital and debt-to-EBITDA ratios to determine, among other considerations, the appropriate targets for capital expenditures and share repurchases under our share repurchase programs. Our debt-to-total-capital ratio increased to 55% at June 30, 2026, as compared to 54% at December 31, 2025.

As of June 30, 2026, our senior credit ratings were Baa1 with a stable outlook, and BBB with a stable outlook, by Moody's Investors Service, Inc. ("Moody's") and Standard & Poor's Rating Group ("S&P"), respectively. The security ratings are not a recommendation to buy, sell or hold securities and may be subject to revision or withdrawal at any time by the assigning rating agency. Each rating should be evaluated independently of any other rating. Our goal is to maintain investment grade ratings from Moody's and S&P to help ensure the capital markets remain available to us.

Liquidity

We believe our cash and cash equivalents of $51.5 million, future cash generated from operations and available borrowing capacity are sufficient to fund operations, planned capital expenditures, future contractual obligations, potential share repurchases and dividends, and other needs in the foreseeable future. In July 2026, we acquired Heat Controller for approximately $205 million. For more information, see Note 14 in the Notes to the Consolidated Financial Statements. Included in our cash and cash equivalents of $51.5 million as of June 30, 2026 was $21.8 million of cash held in foreign locations. Our cash held in foreign locations is used for investing and operating activities in those locations, and we generally do not have the need or intent to repatriate those funds to the United States. An actual repatriation in the future from our non-U.S. subsidiaries could be subject to foreign withholding taxes and U.S. state taxes.

Guarantees Related to Our Debt Obligations

Our senior unsecured notes were issued by Lennox International Inc. ("Parent") and are unconditionally guaranteed by the Guarantor Subsidiaries (and together with Lennox International Inc., the “Obligor Group”). The Guarantor Subsidiaries are

100% owned and consolidated, all guarantees are full and unconditional, and all guarantees are joint and several.

Summarized financial information is presented below for the Obligor Group on a combined basis after elimination of intercompany transactions and balances within the Obligor Group and equity in the earnings from and investments in any non-Guarantor Subsidiary. The revenue amounts presented in the summarized financial information include substantially all of our condensed consolidated revenue, and there is no intercompany revenue from the non-Guarantor Subsidiaries. This summarized financial information has been prepared and presented pursuant to Regulation S-X Rule 13-01 and is not intended to present the financial position or results of operations of the Obligor Group in accordance with U.S. GAAP.

The following combined Parent and Guarantor Subsidiaries financial information is presented as of June 30, 2026 and December 31, 2025 and for the six months ended June 30, 2026 (in millions):

Off Balance Sheet Arrangements

We have no off-balance sheet arrangements that we believe may have a material current or future effect on our financial condition, liquidity or results of operations.

Commitments and Contingencies

For information regarding our commitments and contingencies, see Note 4 in the Notes to the Consolidated Financial Statements.

Recent Accounting Pronouncements

There were no recent accounting pronouncements that are expected to have a material impact on our financial statements and disclosures.

For quantitative and qualitative disclosures about market risk affecting LII, see "Quantitative and Qualitative Disclosures About Market Risk" in Item 7A of Part II of our Annual Report on Form 10-K for the fiscal year ended December 31, 2025. Our exposure to market risk has not changed materially since December 31, 2025.

Disclosure Controls and Procedures

As required by Rule 13a-15 under the Exchange Act, we carried out an evaluation, under the supervision and with the participation of our current management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of our disclosure controls and procedures as of the end of the period covered by this report. There are inherent limitations to the effectiveness of any system of disclosure controls and procedures, including the possibility of human error and circumvention or overriding of the controls and procedures. Accordingly, even effective disclosure controls and procedures can only provide reasonable assurance of achieving their control objectives. Based on that evaluation, the Chief Executive Officer and Chief Financial Officer have concluded that, as of June 30, 2026, our disclosure controls and procedures were effective to provide reasonable assurance that information required to be disclosed by us in the reports we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the applicable rules and forms, and that such information is accumulated and communicated to management, including our Chief Executive Officer and Chief Financial Officer, to allow timely decisions regarding required disclosure.

Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Part II - Other Information

Item 1. Legal Proceedings

Antitrust Class Actions

On March 20, 2026, seven HVAC equipment manufacturers (and certain of their affiliated companies), including the Company, were named as defendants in a complaint filed in the U.S. District Court for the Eastern District of Michigan on behalf of a putative class that alleges violations of Section 1 of the Sherman Antitrust Act of 1890, as amended, and certain state laws. Additional class action complaints were filed in April 2026 in the same court, based on similar allegations. The cases were consolidated under the caption In re HVAC Equipment Antitrust Litigation, No. 2:26-cv-10949 (E.D. Mich.). On July 10, 2026, the plaintiffs filed three amended, consolidated class-action complaints.

The complaints allege that the defendants conspired to fix, raise, maintain, and/or stabilize prices of HVAC equipment. The alleged class is defined as including all persons who purchased HVAC equipment in the U.S. during the period from January 1, 2020 to the present which was manufactured by one or more defendants for end use in a residential or commercial building. The complaints seek to recover an unspecified amount of damages, injunctive relief, and attorneys’ fees on behalf of the putative class.

The Company disputes these allegations and plans to vigorously defend itself. At this stage of the antitrust litigation, the Company cannot reasonably estimate the range of possible loss, if any, or the timing, outcome, or consequence of this litigation. An adverse outcome in this litigation could have a material adverse impact on the Company’s business, financial position, results of operations, or cash flows.

Other Claims

We are involved in a number of other claims and lawsuits incidental to the operation of our businesses. Where appropriate, insurance coverages are maintained and estimated costs are recorded for such claims and lawsuits. It is management's opinion that none of these other claims or lawsuits will have a material adverse effect, individually or in the aggregate, on our financial position, results of operations or cash flows.

In addition to the other information set forth in this Quarterly Report on Form 10-Q, you should carefully consider the risk factors discussed in Part I, “Item 1A. Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2025, which could materially affect our business, financial condition or results of operations. There have been no material changes to our risk factors from those disclosed in our Annual Report on Form 10-K for the year ended December 31, 2025.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

In the second quarter of 2026, we purchased shares of our common stock as follows:

(1) Since the inception of the Company’s share repurchase program in 2008, the Board has authorized share repurchases in an amount not to exceed $5.0 billion (the "Share Repurchase Plans"). The Share Repurchase Plans do not have an expiration date. See Note 5 in the Notes to the Consolidated Financial Statements for further details.

Rule 10b5-1 Plan Elections

During the quarter ended June 30, 2026, none of our directors or officers adopted, modified, or terminated any Rule 10b5-1 trading arrangement or non-Rule 10b5-1 trading arrangement, as such terms are defined in Item 408(a) of Regulation S-K.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

LENNOX INTERNATIONAL INC.

By: /s/ Michael P. Quenzer

Michael P. Quenzer

Chief Financial Officer

(on behalf of registrant and as principal financial officer)

Date: July 29, 2026