GRIFFON CORP

(Unless otherwise indicated, references to years or year-end refer to Griffon’s fiscal period ending September 30)

NOTE 1 –DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION

About Griffon Corporation

Griffon Corporation (the “Company,” “Griffon,” “we” or “us”) is a leading provider of residential and commercial building products. The Company is the largest North American manufacturer and marketer of garage doors under the Clopay, IDEAL and Holmes brands, and rolling steel door and grille products under the Clopay, Cornell, and Cookson brands. The Company is also a leading provider of residential, industrial, and commercial ceiling fans sold under the Hunter, Casablanca, and Jan Fan brands.

The Company, founded in 1959, is organized as a Delaware corporation headquartered in New York, N.Y. and listed on the New York Stock Exchange (NYSE:GFF).

On February 5, 2026, Griffon announced it entered into a definitive agreement to form a joint venture with ONCAP, the mid-market private equity platform of Onex Corporation (TSX:ONEX), to create a leading global provider of hand tools, home organization solutions, and lawn and garden products for professionals and consumers. The joint venture will combine the United States and Canada businesses of Griffon’s AMES Companies (“AMES”) with the Bellota Tools, Corona, and Burgon & Ball businesses of Venanpri, an ONCAP majority-owned portfolio company. The joint venture will be managed as a subsidiary of Venanpri which, together with other affiliates of ONCAP, will hold a 57% equity interest. Upon closing of the transaction, Griffon will receive consideration of $100,000 in cash, subject to working capital adjustments, will enter into a credit agreement with the joint venture to evidence a $161,100 second-lien loan provided to the joint venture, and will participate in the governance and oversight of the joint venture as a 43% equity holder. Griffon will accrue interest receivable on the second-lien loan through the date of maturity. The joint venture will be financed through committed debt financing, in addition to the second-lien loan provided by Griffon. This transaction is subject to customary closing conditions and, after closing, which is expected to occur by the end of June 2026, Griffon’s interest in the joint venture will be accounted for as an equity method investment. As of March 31, 2026, the Company recorded a loss of $22,648 on assets held for sale because the carrying value of the United States (“U.S.”) and Canada businesses of the AMES Companies is greater than its estimated fair value less its cost to sell.

Griffon also announced on February 5, 2026 the initiation of a comprehensive review of strategic alternatives for its AMES Australia and United Kingdom ("U.K.") operations. The strategic process for AMES Australia is active and ongoing and we expect to complete the process by the end of the calendar year. As of March 31, 2026, the Company ceased its AMES U.K. operations and will liquidate its assets and settle its liabilities. As a result of these actions, AMES’ U.S., Canada, Australia, and U.K. operations have been reported as discontinued operations in the Condensed Consolidated Statements of Operations for all periods presented. Except for certain U.K. assets and liabilities not held for sale, we classified the assets and liabilities associated with the AMES' U.S., Canada, Australia and U.K. discontinued operations as held for sale in the Condensed Consolidated Balance Sheets. The U.K. assets classified as held for sale relate to inventory and property, plant and equipment that will be sold in liquidation. Accordingly, all references made to results and information in this Quarterly Report on Form 10-Q are to Griffon's continuing operations, unless specifically noted otherwise. Refer to Note 15, Discontinued Operations for further details.

Griffon now conducts its operations throughone reportable segment, managed on a consolidated basis. All prior period comparative segment information presented has been applied retrospectively to reflect the new segment structure. For further information regarding our segment reporting, see Note 12, Reportable Segment.

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“US GAAP”) for interim financial information, and the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, these financial statements do not include all the information and footnotes required by US GAAP for complete financial statements. As such, they should be read together with Griffon’s Annual Report on Form 10-K for the fiscal year ended September 30, 2025, which provides a more complete explanation of Griffon’s accounting policies, financial position, operating results, business, properties and other matters. In the opinion of management, these financial statements reflect all adjustments considered necessary for a fair statement of interim results. Griffon’s businesses are seasonal; for this and other reasons, the financial results of the Company for any interim period are not necessarily indicative of the results for the full year.

The Condensed Consolidated Balance Sheet information at September 30, 2025 was derived from the audited financial statements included in Griffon’s Annual Report on Form 10-K for the year ended September 30, 2025.

The condensed consolidated financial statements include the accounts of Griffon and all subsidiaries. Intercompany accounts and transactions have been eliminated in consolidation. Certain amounts in prior years may have been reclassified to conform to the current year presentation.

The preparation of financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting periods. These estimates may be adjusted due to changes in economic, industry or customer financial conditions, as well as changes in technology or demand. Significant estimates include expected loss allowances for credit losses and returns, net realizable value of inventories, restructuring reserves, valuation of goodwill and intangible assets, assumptions associated with pension benefit obligations and income or expenses, useful lives associated with depreciation and amortization of intangible and fixed assets, warranty reserves, sales incentive accruals, assumptions associated with stock based compensation valuation, income taxes and tax valuation reserves, environmental reserves, legal reserves, insurance reserves, the valuation of assets and liabilities of discontinued operations and the accompanying disclosures. These estimates are based on management’s best knowledge of current events and actions Griffon may undertake in the future. Actual results may ultimately differ from these estimates.

NOTE 2 –FAIR VALUE MEASUREMENTS

The carrying values of cash and equivalents, accounts receivable, accounts and notes payable, and revolving credit and variable interest rate debt approximate fair value due to either the short-term nature of such instruments or the fact that the interest rate of the revolving credit and variable rate debt is based upon current market rates.

Applicable accounting guidance establishes a fair value hierarchy requiring the Company to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. A financial instrument’s categorization within the hierarchy is based on the lowest level of input that is significant to the fair value measurement. The accounting guidance establishes three levels of inputs that may be used to measure fair value, as follows:

•Level 1 inputs are measured and recorded at fair value based upon quoted prices in active markets for identical assets.

•Level 2 inputs include inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices in active markets for similar assets and liabilities, quoted prices for identical or similar assets or liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of assets or liabilities.

•Level 3 inputs are unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions.

On March 31, 2026, the fair values of Griffon’s Senior Notes and Term Loan B facility approximated $966,246 and $387,484, respectively. Fair values were based upon quoted market prices (Level 1 inputs).

Insurance contracts with values of $5,325 at March 31, 2026 are measured and recorded at fair value based upon quoted prices in active markets for similar assets (Level 2 inputs) and are included in other assets on the Condensed Consolidated Balance Sheets.

Items Measured at Fair Value on a Recurring Basis

In the normal course of business, Griffon’s operations are exposed to the effects of changes in foreign currency exchange rates related to inventory purchases. To manage these risks, Griffon may enter into various derivative contracts such as foreign currency exchange contracts, including forwards and options. As of March 31, 2026, Griffon entered into several such contracts in order to lock into a foreign currency rate for planned settlements of trade liabilities payable in U.S. Dollars.

At March 31, 2026, Griffon had $86,322 of Chinese Yuan contracts at a weighted average rate of $6.91 which qualified for hedge accounting (Level 2 inputs). These hedges were all deemed effective as cash flow hedges with gains and losses related to changes in fair value deferred and recorded in AOCI and Prepaid and other current assets, or Accrued liabilities, until settlement. Upon settlement, gains and losses are recognized in the Consolidated Statements of Operations and Comprehensive Income (Loss) in COGS. AOCI included deferred gains of $199 ($144, net of tax) at March 31, 2026. Upon settlement, gains of $260 and $322 were recorded in COGS during the three and six months ended March 31, 2026. All contracts expire in 30 to 153 days.

NOTE 3 –REVENUE

The Company recognizes revenue when performance obligations identified under the terms of contracts with its customers are satisfied. A performance obligation is a promise in a contract to transfer a distinct good or service, or a bundle of goods or services, to the customer, and is the unit of accounting. A contract with a customer is an agreement which both parties have approved, that creates enforceable rights and obligations, has commercial substance and with respect to which payment terms are identified and collectability is probable. Once the Company has entered into a contract or purchase order, it is evaluated to identify performance obligations. For each performance obligation, revenue is recognized when control of the promised products is transferred to the customer, or services are satisfied under the contract or purchase order, in an amount that reflects the consideration the Company expects to be entitled to in exchange for those products or services (the transaction price).

The Company’s performance obligations are recognized at a point in time related to the manufacture and sale of a broad range of products and components, and revenue is recognized when title, and risk and rewards of ownership, have transferred to the customer, which is generally upon shipment.

For a complete explanation of Griffon’s revenue accounting policies, this note should be read in conjunction with Griffon’s Annual Report on Form 10-K for the year ended September 30, 2025. See Note 12 - Reportable Segment for revenue from contracts with customers disaggregated by end markets.

NOTE 4 –INVENTORIES

Inventories are stated at the lower of cost (first-in, first-out or average cost) or net realizable value.

The following table details the components of inventory:

NOTE 5 –PROPERTY, PLANT AND EQUIPMENT

The following table details the components of property, plant and equipment, net:

(1) Machinery and equipment includes approximately $22,163 and $31,078 of construction in progress assets as of March 31, 2026 and September 30, 2025, respectively.

Depreciation and amortization expense for property, plant and equipment was $6,381 and $5,951 for the quarters ended March 31, 2026 and 2025, respectively, and $12,239 and $11,829 for the six months ended March 31, 2026 and 2025, respectively. Depreciation and amortization included in Selling, general and administrative ("SG&A") expenses were $2,309 and $2,508 for the quarters ended March 31, 2026 and 2025, respectively and $4,563 and $4,964 for the six months ended March 31, 2026 and 2025, respectively. Remaining components of depreciation and amortization, attributable to manufacturing operations, are included in Cost of goods and services.

During the six months ended March 31, 2026, no event or indicator of impairment occurred which would require testing of property, plant and equipment related to continuing operations.

NOTE 6 –CREDIT LOSSES

The Company is exposed to credit losses primarily through sales of products and services. Trade receivables are recorded at their stated amount, less expected allowances for credit losses and, when appropriate, for customer program reserves and cash discounts. The Company’s expected loss allowance methodology for trade receivables is primarily based on the aging method of the accounts receivable balances and the financial condition of its customers. The expected allowance for credit losses represents estimated uncollectible receivables associated with potential customer defaults on contractual payment obligations (usually due to customers’ potential insolvency) and estimates for returns. As of March 31, 2026 and September 30, 2025, the allowance for credit losses includes an allowance for sales returns of $2,245 and $2,429, respectively. The allowance for credit losses includes amounts for certain customers where a risk of default has been specifically identified, as well as an amount for customer defaults, based on a formula, when it is determined the risk of some default is probable and estimable, but cannot yet be associated with specific customers. The provision related to the expected allowance for credit losses is recorded in SG&A expenses. The Company writes-off accounts receivable when they are deemed to be uncollectible.

The Company also considers current and expected future economic and market conditions when determining any estimate of credit losses. Generally, estimates used to determine the allowance are based on assessment of anticipated payment and all other historical, current and future information that is reasonably available. All accounts receivable amounts are expected to be collected in less than one year.

Based on a review of the Company's policies and procedures, including the aging of its trade receivables, recent write-off history and other factors related to future macroeconomic conditions, Griffon determined that its method to determine expected allowances for credit losses is in accordance with the accounting guidance for credit losses on financial instruments, including trade receivables, in all material respects.

The following table provides a roll-forward of the allowance for credit losses that is deducted from gross accounts receivable to present the net amount expected to be collected:

NOTE 7 –GOODWILL AND OTHER INTANGIBLES

The carrying value of goodwill as of March 31, 2026 and September 30, 2025 was $191,253.

The following table provides the gross carrying value and accumulated amortization for each major class of intangible assets:

Amortization expense for intangible assets was $3,682 and $3,642 for the quarters ended March 31, 2026 and 2025, respectively and $7,342 and $7,262 for the six months ended March 31, 2026 and 2025, respectively. Amortization expense for the remainder of 2026 and the next five fiscal years and thereafter, based on current intangible balances and classifications, is estimated as follows: remaining in 2026 - $7,410; 2027 - $14,800; 2028 - $14,800; 2029 - $14,800; 2030 - $14,800; 2031 - $14,800; thereafter $131,972.

Indicators of impairment related to the Company's continuing operations Goodwill and Intangible Assets were not present during the six months ended March 31, 2026 and 2025.

NOTE 8 –INCOME TAXES

During the quarter ended March 31, 2026, the Company recognized a tax provision of $18,038 on income before taxes from continuing operations of $64,975, compared to a tax provision of $17,782 on income before taxes from continuing operations of $67,587 in the prior year quarter. The current year quarter results includes the impact of retirement plan events of $1,609 ($1,225, net of tax); and discrete and certain other tax benefits, net, that affect comparability of $14. The prior year quarter results included strategic review costs - retention and other of $889 ($670, net of tax); and discrete and certain other tax benefits, net, that affect comparability of $1,006. Excluding these items, the effective tax rates for the quarters ended March 31, 2026 and 2025 were 27.7% and 27.8%, respectively.

During the six months ended March 31, 2026, the Company recognized a tax provision of $38,189 on income before taxes from continuing operations of $140,698, compared to a tax provision of $38,516 on income before taxes from continuing operations of $147,457 in the comparable prior year period. The six month period ended March 31, 2026 included the impact of retirement plan events of $3,218 ($2,451, net of tax); loss from debt extinguishment of $556, ($423, net of tax); and discrete and other tax provisions, net, that affect comparability of $215. The six month period ended March 31, 2025 included strategic review costs - retention and other of $1,778 ($1,339, net of tax); and discrete and other tax benefits, net, that affect comparability of $1,134. Excluding these items, the effective tax rate for both the six months ended March 31, 2026 and 2025 was 26.9%.

Subsequent to the actions discussed in Note 1, the Company has recorded a deferred tax liability of $13,865 relating to the outside book to tax difference of North America discontinued operations, offset by a deferred tax asset of $22,086 relating to the outside book to tax basis difference in foreign discontinued operations. Under ASC 740-30, the Company is no longer permanently reinvested in the discontinued operations of Canada, Australia, and U.K.

NOTE 9 –LONG-TERM DEBT

Debt at March 31, 2026 and September 30, 2025 consisted of the following:

Interest expense for the three and six months ended March 31, 2026 and 2025 consists of the following:

(a) During 2020, Griffon issued, at par, $1,000,000 of 5.75% Senior Notes due 2028 (the “Senior Notes”). Proceeds from the Senior Notes were used to redeem $1,000,000 of 5.25% Senior Notes due in 2022. In connection with the issuance and exchange of the Senior Notes, Griffon capitalized $16,448 of underwriting fees and other expenses incurred, which is being amortized over the term of such notes. During 2022, Griffon purchased $25,225 of Senior Notes in the open market at a weighted average discount of 91.82% of par, or $23,161. As of March 31, 2026, outstanding Senior Notes due totaled $974,775; interest is payable semi-annually on March 1 and September 1.

The Senior Notes are senior unsecured obligations of Griffon guaranteed by certain domestic subsidiaries, and subject to certain covenants, limitations and restrictions. The Senior Notes were registered under the Securities Act of 1933, as amended (the "Securities Act") via an exchange offer. The fair value of the Senior Notes approximated $966,246 on March 31, 2026 based upon quoted market prices (Level 1 inputs). At March 31, 2026, $3,871 of underwriting fees and other expenses incurred remained to be amortized.

(b) On January 24, 2022, Griffon amended and restated its Credit Agreement (the "Credit Agreement") to provide for a new $800,000 Term Loan B facility, due January 24, 2029, in addition to the revolving credit facility (the "Revolver") provided for under the Credit Agreement. The Term Loan B facility was issued at 99.75% of par value. Additionally, during 2024 Griffon further amended its Credit Agreement to favorably reprice the Term Loan B facility. The amendment reduced the margin above Secured Overnight Financing Rate ("SOFR") by 0.25%, eliminated the credit spread adjustment and reduced the SOFR floor from 0.50% to 0%.

The Term Loan B bears interest at the Term SOFR rate plus a spread of 2.00% (5.66% as of March 31, 2026). The Term Loan B facility continues to require nominal quarterly principal payments of $2,000, potential additional annual principal payments based on a percentage of excess cash flow and certain secured leverage thresholds and a final balloon payment due at maturity. Term Loan B borrowings may generally be repaid without penalty. Once repaid, Term Loan B borrowings may not be reborrowed. The Term Loan B facility is subject to the same affirmative and negative covenants that apply to the Revolver (as described below), but is not subject to any financial maintenance covenants. Term Loan B borrowings are secured by the same collateral that secures borrowings under the Revolver, on an equal and ratable basis. The fair value of the Term Loan B facility approximated $387,484 on March 31, 2026 based upon quoted market prices (Level 1 inputs).

During the six months ended March 31, 2026, Griffon prepaid $58,000 of the aggregate principal amount outstanding under the Term Loan B facility, in addition to the required principal payments of $4,000. In connection with this prepayment Griffon recognized a $556 loss on debt extinguishment, $500 related to the write-off of underwriting fees and other expenses and $56 of the original issue discount. Since the inception of the loan, Griffon has prepaid $383,000 aggregate principal amount of the Term Loan B, which permanently reduced the outstanding balance. As of March 31, 2026, the Term Loan B outstanding balance was $387,000. At March 31, 2026, unamortized costs of $3,084 related to existing and new Term Loan B facility lenders will continue to be amortized over the term of the loan.

On August 1, 2023, Griffon amended and restated the Credit Agreement to increase the maximum borrowing availability under the Revolver from $400,000 to $500,000 and extend the maturity date of the Revolver from March 22, 2025 to August 1, 2028. In the event the Senior Notes are not repaid, refinanced, or replaced prior to December 1, 2027, the Revolver will mature on December 1, 2027. The amendment also modified certain other provisions of the Credit Agreement, including increasing the letter of credit sub-facility under the Revolver from $100,000 to $125,000 and increasing the customary accordion feature from a minimum of $375,000 to a minimum of $500,000. The Revolver also includes a multi-currency sub-facility of $200,000.

Borrowings under the Revolver may be repaid and re-borrowed at any time. Interest is payable on borrowings at either a SOFR, Sterling Overnight Index Average ("SONIA") or base rate benchmark rate, plus an applicable margin, which adjusts based on financial performance. Griffon's SOFR loans accrue interest at Term SOFR plus a credit adjustment spread and a margin of 1.75% (5.51% at March 31, 2026); SONIA loans accrue interest at SONIA Base Rate plus a credit adjustment spread and a margin of 1.75% (5.51% at March 31, 2026); and base rate loans accrue interest at prime rate plus a margin of 0.75% (7.50% at March 31, 2026).

At March 31, 2026, under the Credit Agreement, there was $50,000 in outstanding borrowings on the Revolver; outstanding standby letters of credit were $13,152; and $436,848 was available, subject to certain loan covenants, for borrowing at that date.

The Revolver has certain financial maintenance tests including a maximum total leverage ratio, a maximum senior secured leverage ratio and a minimum interest coverage ratio, as well as customary affirmative and negative covenants and events of default. The negative covenants place limits on Griffon's ability to, among other things, incur indebtedness, incur liens, and make restricted payments and investments. Both the Revolver and Term Loan B borrowings under the Credit Agreement are guaranteed by Griffon’s material domestic subsidiaries and are secured, on a first priority basis, by substantially all domestic assets of the Company and the guarantors.

(c) The balance in other long-term debt consists of finance leases.

At March 31, 2026, Griffon and its subsidiaries were in compliance with the terms and covenants of its credit and loan agreements.

NOTE 10 —SHAREHOLDERS’ EQUITY AND EQUITY COMPENSATION

During the six months ended March 31, 2026, the Company paidtwo quarterly cash dividends of $0.22 per share. During fiscal year 2025, the Company paid four quarterly cash dividends of $0.18 per share, totaling $0.72. For all dividends, a dividend payable is established for the holders of restricted shares; such dividends will be released upon vesting of the underlying restricted shares. At March 31, 2026, accrued dividends were $1,836.

The Company currently intends to pay dividends each quarter; however, payment of dividends is determined by the Board of Directors at its discretion based on various factors, and no assurance can be provided as to the payment of future dividends. Dividends paid on shares in Griffon's Employee Stock Ownership Plan (the “ESOP”) through December 31, 2024 were used to offset ESOP loan payments and recorded as a reduction of debt service payments and compensation expense. The ESOP loan was paid in full as of December 31, 2024 and dividends paid after that date are paid in cash directly to participant accounts.

The ESOP was frozen as of September 30, 2024; this means that, for plan years after this date, no additional employees will become participants under the ESOP and no new voluntary contributions will be made to the ESOP. Prior to this date, all U.S. employees of Griffon, who were not members of a collective bargaining unit, were automatically eligible to participate in the plan on the October 1st following completion of one qualifying year of service (as defined in the plan). During the first quarter of fiscal 2025, the final loan payment was made by the ESOP to the Company and compensation expense for the period was fully offset by dividends paid. As of March 31, 2026, there were 3,777,638 shares of common stock in the ESOP, all of which were allocated to participant accounts.

On May 6, 2026, the Board of Directors declared a quarterly cash dividend of $0.22 per share, payable on June 17, 2026 to shareholders of record as of the close of business on May 29, 2026.

On January 29, 2016, shareholders approved the Griffon Corporation 2016 Equity Incentive Plan (the "Original Incentive Plan") pursuant to which, among other things, awards of performance shares, performance units, stock options, stock appreciation rights, restricted shares, restricted stock units, deferred shares and other stock-based awards may be granted. On January 31, 2018, shareholders approved Amendment No. 1 to the Original Incentive Plan pursuant to which, among other things,1,000,000 shares were added to the Original Incentive Plan; on January 30, 2020, shareholders approved Amendment No. 2 to the Original Incentive Plan, pursuant to which 1,700,000 shares were added to the Original Incentive Plan; on February 17, 2022, shareholders approved the Amended and Restated 2016 Equity Incentive Plan (the “Amended Incentive Plan”), which amended and restated the Original Incentive Plan and pursuant to which, among other things,1,200,000 shares were added to the Original Incentive Plan; and on March 20, 2024, shareholders approved an amendment to add 2,600,000 shares to the Amended Incentive Plan. Options granted under the Amended Incentive Plan may be either “incentive stock options” or nonqualified stock options, generally expireten years after the date of grant and are granted at an exercise price of not less than 100% of the fair market value at the date of grant. The maximum number of shares of common stock available for award under the Amended Incentive Plan is 8,850,000 (600,000 of which may be issued as incentive stock options), plus (i) any shares that were reserved for issuance under the Original Incentive Plan as of the effective date of the Original Incentive Plan, and (ii) any shares underlying awards outstanding on such date under the 2011 Incentive Plan that were subsequently canceled or forfeited. As of March 31, 2026, there were 1,316,946 shares available for grant.

Compensation expense for restricted stock and restricted stock units is recognized ratably over the required service period based on the fair value of the grant, calculated as the number of shares or units granted multiplied by the stock price on the date of grant, and for performance shares, including performance units, the likelihood of achieving the performance criteria. The Company recognizes forfeitures as they occur. Compensation expense for restricted stock granted tofour senior executives is calculated as the target number of shares granted, upon achieving certain performance criteria or market conditions multiplied by the grant date fair value. The Monte Carlo Simulation Model is used to estimate the grant-date fair value of restricted stock awards that include market conditions. Compensation cost related to stock-based awards with graded vesting, generally over a period ofthree years, is recognized using the straight-line attribution method and recorded within SG&A expenses. The Company’s compensation expense relating to all stock-based incentive plans was $7,688 and $6,182 for the three months ended March 31, 2026 and 2025, respectively, and $13,758 and $11,262 for the six months ended March 31, 2026 and 2025, respectively.

During the first quarter of 2026, Griffon granted 147,398 shares of restricted stock and restricted stock units to 29 executives and key employees, subject to certain performance conditions, with a vesting period ofthirty-six months and a total fair value of $9,855, or a weighted average fair value of $66.86 per share. During the first quarter of 2026, Griffon also granted 531,456 shares of restricted stock tofour senior executives with a vesting period ofthirty-six months and atwo-year post-vesting holding period, subject to the achievement of certain performance conditions relating to required levels of return on invested capital and the relative total shareholder return of Griffon's common stock as compared to a market index. So long as the minimum performance conditions are attained, the amount of shares that can vest will range from a minimum of 88,578 to a maximum of 531,456, with the target number of shares being 177,152. The total estimated fair value of these restricted shares, assuming achievement of the performance conditions at target, is $14,326, or a weighted average fair value of $80.87 per share (based on the target number of shares).

During the second quarter of 2026, Griffon granted 13,400 shares of restricted stock to non-employee directors of Griffon with a vesting period ofone year and a fair value of $1,200, or a weighted average fair value of $89.52 per share.

Subsequent to the second quarter of 2026, Griffon granted 5,401 shares of restricted stock to one executive with a vesting period ofsixty months and a total fair value of $500, or a weighted average fair value of $92.58 per share.

On November 13, 2024, Griffon announced that the Board of Directors approved an increase of $400,000 to its share repurchase authorization. Under the authorized share repurchase program, the Company may, from time to time, purchase shares of its common stock in the open market, including pursuant to a 10b5-1 plan, pursuant to an accelerated share repurchase program or issuer tender offer, or in privately negotiated transactions. Share repurchases during the quarter and six months ended March 31, 2026 totaled 422,151 and 668,888 shares of common stock, respectively, for a total of $32,940 and $51,003, respectively, or an average of $78.03 and $76.25 per share, respectively. This excludes excise taxes incurred for share repurchases of $329 and $510, respectively, for the quarter and six months ended March 31, 2026, respectively. As of March 31, 2026, $247,010 remains available under Griffon's Board authorized repurchase program.

During the quarter and six months ended March 31, 2026,6,304 and 166,160 shares, respectively, with a market value of $515 or $81.77 per share and $12,505 or $75.26 per share, respectively, were withheld to settle employee taxes due upon the vesting of restricted stock, and were added to treasury stock. This excludes excise tax benefits of $30 and $173 for the quarter and six months ended March 31, 2026, respectively.

NOTE 11 –EARNINGS PER SHARE (EPS)

Basic EPS was calculated by dividing income available to common shareholders by the weighted average number of shares of common stock outstanding during the period. Diluted EPS was calculated by dividing income available to common shareholders by the weighted average number of shares of common stock outstanding plus additional common shares that could be issued in connection with stock-based compensation.

The following table is a reconciliation of the share amounts (in thousands) used in computing earnings per share:

NOTE 12 –REPORTABLE SEGMENT

Subsequent to the actions discussed in Note 1, Griffon now conducts its operations throughone reportable segment, managed on a consolidated basis. All prior period comparative information has been conformed to this reporting structure.

Griffon Corporation is a leading provider of residential and commercial building products. The Company is the largest manufacturer and marketer of garage doors and rolling steel doors in North America. Sectional garage doors for residential and commercial applications are sold under the brands Clopay, IDEAL, and Holmes. Rolling steel door and grille products designed for commercial, industrial, institutional, and retail use are sold under the Clopay, Cornell, and Cookson brands. The Company is also a leading provider of residential, industrial, and commercial ceiling fans sold under the Hunter, Casablanca, and Jan Fan brands.

Griffon is organized based on the nature of products sold by the Company, its production and distribution mode, its internal management structure and information that is regularly provided to the Chief Operating Decision Maker ("CODM"), which is our Chief Executive Officer. The CODM reviews financial information presented on a consolidated basis when managing the operations of the Company for purposes of allocating resources and assessing performance, and measures performance using net income (loss). There are no other significant expense categories reviewed by the CODM, other than what is presented in the Consolidated Statement of Operations and depreciation and amortization expense, which is presented in the Consolidated Statement of Cash Flows.

Disaggregation of Revenue

Revenue from contracts with customers is disaggregated by end markets as it more accurately depicts the nature and amount of the Company’s revenue. The following table presents revenue disaggregated by end market:

(1) The breakout between residential new construction and residential repair and remodel contains certain management assumptions, such as customer and product type.

The Company’s consolidated revenue is concentrated in the United States. Revenue generated from sales to customers in the United States was approximately 96% of consolidated revenue for both the three and six months ended March 31, 2026. For the three and six months ended March 31, 2025, revenue generated from sales to customers in the United States was approximately 96% and 95% of consolidated revenue, respectively. As of March 31, 2026 and September 30, 2025, the Company's long-lived assets are primarily concentrated in the United States.

As the Company discloses one reportable segment, net income is reported in the Condensed Consolidated Statements of Operations, assets are reported in the Condensed Consolidated Balance Sheets, and capital expenditures are reported in the Condensed Consolidated Statements of Cash Flows.

NOTE 13 –EMPLOYEE BENEFIT PLANS

Defined benefit pension and other post-retirement benefit plan expenses are as follows:

The defined benefit pension and other post-retirement benefit plan expenses in the above table were recorded in Other, net on the Condensed Consolidated Statement of Operations and Comprehensive Income (Loss), except for service costs, which were recorded in selling, general and administrative expenses.

Included in the above table, is the new retiree medical plan for certain Griffon executives, which was effective August 5, 2025. Under the plan, eligible retirees and their covered spouses are provided company-paid medical, prescription drug and dental coverage through the Company's group health plans (or if such coverage cannot be provided, an equivalent benefit), along with reimbursement for certain uncovered expenses.

During the quarter and six months ended March 31, 2026, the Company recognized a benefit plan expense of $1,794 and $3,588, respectively, which includes a non-cash charge of $1,609 and $3,218, respectively, related to the implementation of this retiree medical plan. The Company expects to record non-cash charges related to implementation of the plan of $5,362 in 2026.

During 2025, the Company completed the termination of the Hunter Pension Plan (the "Plan"). In connection with such termination the Plan made lump sum payments of $4,830, and placed $10,859 of assets with an annuity provider, based on the elections of the participants. Additionally, excess cash of $6,100 was transferred to the Company, a portion of which was transferred directly to a qualified replacement plan. In 2025, the Company recognized a gain on the termination of the Plan of $2,181, net of excise taxes, in the Consolidated Statements of Operations and Comprehensive Income (Loss).

NOTE 14 –RECENT ACCOUNTING PRONOUNCEMENTS

Issued but not yet effective accounting pronouncements

In December 2023, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The new standard was issued to improve transparency and decision usefulness of income tax disclosures by providing information that helps investors better understand how an entity's operations, tax risks, tax planning and operational opportunities affect its tax rate and future cash flows. The standard requires significant additional disclosures focused on income taxes paid and the rate reconciliation table. Specifically, the amendments in the standard require the Company to disclose disaggregated: (1) income taxes paid by federal, state, and foreign, (2) continuing operations pre-tax income between domestic and foreign, and (3) continuing operations income tax expense by federal, state and foreign. The standard also requires the Company to disclose specific categories in the rate reconciliation and provide additional information for reconciling items that meet a quantitative threshold. This standard is effective for the Company beginning with our fiscal year 2026 annual reporting period, and can be applied prospectively or retrospectively. While the Company is currently evaluating the guidance to determine the impact it may have on its condensed consolidated financial statements, the Company does not expect the adoption of this standard to have a material impact on its financial position, results of operations, or cash flows.

In November 2024, the FASB issued ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses. The amendments in this update require disclosures and further disaggregation, in the notes to financial statements, of specified information regarding certain costs and expenses. The required disclosures include the amounts of purchases of inventory, employee compensation, depreciation, intangible asset amortization, and depreciation, depletion, and amortization recognized as part of oil and gas producing activities included in each relevant expense caption. Additionally, further disclosures are required for certain amounts already required to be disclosed under current GAAP, a qualitative description of amounts remaining in relevant expense captions that are not separately disaggregated quantitatively, and the total amount of selling expenses, and on an annual basis, the definition of selling expenses. The ASU is effective for the Company beginning with the Company's fiscal year 2028 and interim reporting periods beginning with the Company's 2029 fiscal year. Implementation of this standard may be applied prospectively or retrospectively. The Company is currently evaluating this guidance to determine the impact it may have on its condensed consolidated financial statements.

In December 2025, the FASB issued guidance, ASU 2025-11, Interim Reporting (Topic 270): Narrow-Scope Improvements. The ASU clarifies interim reporting disclosure requirements by introducing a principle that entities disclose material events and changes since the most recent annual reporting period and by consolidating existing interim disclosure guidance. ASU 2025-11 is effective for interim periods beginning after December 15, 2027, with early adoption permitted. For the Company, the ASU will be effective for the interim period ending March 31, 2028. The Company is currently evaluating the impact of the adoption of ASU 2025-11 on its condensed consolidated financial statements and related disclosures.

NOTE 15 –DISCONTINUED OPERATIONS

On February 5, 2026, Griffon announced it entered into a definitive agreement to form a joint venture with ONCAP, the mid-market private equity platform of Onex Corporation (TSX:ONEX), to create a leading global provider of hand tools, home organization solutions, and lawn and garden products for professionals and consumers. The joint venture will combine the United States and Canada businesses of Griffon’s AMES Companies (“AMES”) with the Bellota Tools, Corona, and Burgon & Ball businesses of Venanpri, an ONCAP majority-owned portfolio company. The joint venture will be managed as a subsidiary of Venanpri which, together with other affiliates of ONCAP, will hold a 57% equity interest. Upon closing of the transaction, Griffon will receive consideration of $100,000 in cash, subject to working capital adjustments, will enter into a credit agreement with the joint venture to evidence a $161,100 second-lien loan provided to the joint venture, and will participate in the governance and oversight of the joint venture as a 43% equity holder. Griffon will accrue interest receivable on the second-lien loan through the date of maturity. The joint venture will be financed through committed debt financing, in addition to the second-lien loan provided by Griffon. This transaction is subject to customary closing conditions and, after closing, which is expected to occur by the end of June 2026, Griffon’s interest in the joint venture will be accounted for as an equity method investment. As of March 31, 2026, the Company recorded a loss of $22,648 on assets held for sale because the carrying value of the U.S. and Canada businesses of the AMES Companies is greater than its estimated fair value less its cost to sell.

Griffon also announced on February 5, 2026 the initiation of a comprehensive review of strategic alternatives for its AMES Australia and United Kingdom ("U.K.") operations. The strategic process for AMES Australia is active and ongoing and we expect to complete the process by the end of the calendar year. As of March 31, 2026, the Company ceased its AMES U.K. operations and will liquidate its assets and settle its liabilities. As a result of these actions, AMES’ U.S., Canada, Australia, and U.K. operations have been reported as discontinued operations in the Condensed Consolidated Statements of Operations for all periods presented. Except for certain U.K. assets and liabilities not held for sale, we classified the assets and liabilities associated with the AMES' U.S., Canada, Australia and U.K. discontinued operations as held for sale in the Condensed Consolidated Balance Sheets. The U.K. assets classified as held for sale relate to inventory and property, plant and equipment that will be sold in liquidation. Accordingly, all references made to results and information in this Quarterly Report on Form 10-Q are to Griffon's continuing operations, unless specifically noted otherwise. In accordance with ASC 205-20 Presentation of Financial Statements: Discontinued Operations, a disposal of a component of an entity or a group of components of an entity is required to be reported as discontinued operations if the disposal represents a strategic shift that has (or will have) a major effect on an entity’s operations and financial results when the component of an entity meets the held for sale criteria or is disposed of other than by sale. In the period in which the component meets the discontinued operations criteria, the major current assets, other assets, current liabilities, and noncurrent liabilities shall be reported as components of total assets and liabilities separate from those balances of the continuing operations except as noted above for certain U.K. assets and liabilities not held for sale. At the same time, the results of all discontinued operations, less applicable income taxes (benefit), shall be reported as components of net income (loss) separate from the net income (loss) of continuing operations.

The following amounts related to AMES have been segregated from Griffon's continuing operations and are reported as discontinued operations:

As of March 31, 2026, the Company has ceased business operations of the AMES Companies in the U.K. and recorded charges totaling $27,328 consisting of non-cash asset impairment charges of $21,282 and cash charges related to personnel-related costs and vendor agreement terminations of $6,046. Non-cash asset impairment charges of $21,282 related to intangible asset impairments of $6,609, and inventory and fixed asset write-down charges of $7,340 and $7,333, respectively, that have no recoverable value. In total, $15,751 was recorded within selling, general and administrative expenses in discontinued operations and $11,577 was recorded within cost of goods and services in discontinued operations.

As of March 31, 2026, the Company recorded an expected loss of $22,648 ($31,099, including tax provision) on assets held for sale because the carrying value of the U.S. and Canada businesses of the AMES Companies is greater than its estimated fair value less its cost to sell. The tax carrying value of these businesses is less than its estimated fair value less costs to sell, resulting in a tax provision of $8,451. The loss consists of a write-down of $14,332 to the carrying value of the U.S. and Canada businesses to their fair value and $8,316 associated with the estimated costs to sell AMES' U.S. and Canada in connection with the anticipated joint venture transaction. Griffon recorded an additional $5,287 of legal and consulting costs related to the sale of the joint venture, which is included in selling, general and administrative expenses in discontinued operations.

For the three and six months ended March 31, 2026, depreciation and amortization for property, plant and equipment was $2,389 and $8,574, respectively. Depreciation and amortization ceased for AMES' U.S., Canada and Australia operations from the time they were classified as a discontinued operation, in accordance with accounting guidelines. Depreciation and amortization excluded in both the three and six months ended March 31, 2026 was $3,576. Depreciation and amortization would have been $5,965 and $12,150 for the three and six months ended March 31, 2026, respectively. For the three and six months ended March 31, 2025, depreciation and amortization was $6,058 and $12,173, respectively.

For the three and six months ended March 31, 2026, ROU asset amortization was $1,451 and $5,762, respectively. ROU asset amortization ceased for the AMES' U.S., Canada and Australia operations from the time they were classified as a discontinued operation, in accordance with accounting guidelines. ROU asset amortization excluded in both the three and six months ended March 31, 2026 was $2,931. ROU asset amortization would have been $4,382 and $8,693 for the three and six months ended March 31, 2026, respectively. For the three and six months ended March 31, 2025, amortization on operating leases was $4,180 and $8,512, respectively.

The following amounts related to the AMES discontinued operations have been segregated from Griffon’s continuing operations, and are reported as assets and liabilities of discontinued operations in the Condensed Consolidated Balance Sheets:

(1) The Company recorded a loss of $22,648 consisting of a write-down of $14,332 for the carrying value of assets to its fair value and $8,316 associated with the estimated costs to sell for AMES' United States and Canada in connection with the anticipated joint venture transaction.

NOTE 16 –OTHER INCOME (EXPENSE)

For the quarters ended March 31, 2026 and 2025, Other income (expense) of $(1,238) and $317, respectively, includes $134 and ($6), respectively, of net currency exchange gains (losses) in connection with the translation of receivables and payables denominated in currencies other than the functional currencies of Griffon and its subsidiaries, net periodic benefit plan expense of $(1,908) and $(40), respectively, net gains (losses) on investments of $122 and $(16), respectively, and royalty income of $445 and $556, respectively. Net periodic benefit plan expense includes a charge of $1,609 recorded in the three months ended March 31, 2026 associated with the establishment of a new retiree medical plan. Refer to Note 13 - Employee Benefit Plans for additional details.

For the six months ended March 31, 2026 and 2025, Other income (expense) of $(2,616) and $586, respectively, includes $283 and $(276), respectively, of net currency exchange gains (losses) in connection with the translation of receivables and payables denominated in currencies other than the functional currencies of Griffon and its subsidiaries, net periodic benefit plan expense of $(3,815) and $(81), respectively, net gains (losses) on investments of $(7) and $54, respectively, and royalty income of $964 and $1,146, respectively. Net periodic benefit plan expense includes a charge of $3,218 recorded in the six months ended March 31, 2026 associated with the establishment of a new retiree medical plan. Refer to Note 13 - Employee Benefit Plans for additional details.

NOTE 17 –WARRANTY LIABILITY

The Company offers warranties against product defects for periods generally ranging fromone toten years, with limited lifetime warranties on certain door and fan models. Typical warranties require the Company to repair or replace the defective products during the warranty period at no cost to the customer. At the time revenue is recognized, Griffon records a liability for warranty costs, estimated based on historical experience, and periodically assesses its warranty obligations and adjusts the liability as necessary. Warranty costs expected to be incurred in the next 12 months are classified in accrued liabilities. Warranty costs expected to be incurred beyond one year are classified in other long-term liabilities. The short-term warranty liability was $6,542 as of March 31, 2026 and $5,694 as of September 30, 2025. The long-term warranty liability was $1,239 at both March 31, 2026 and September 30, 2025.

Changes in Griffon’s warranty liability, included in Accrued liabilities, for the three and six months ended March 31, 2026 and 2025 were as follows:

NOTE 18 –OTHER COMPREHENSIVE INCOME (LOSS)

The amounts recognized in other comprehensive income (loss) were as follows:

The components of Accumulated other comprehensive income (loss) are as follows:

Amounts reclassified from accumulated other comprehensive income (loss) to income were as follows:

NOTE 19 —LEASES

The Company recognizes right-of-use ("ROU") assets and lease liabilities on the balance sheet, with the exception of leases with a term of twelve months or less. The Company determines if an arrangement is a lease at inception. The ROU assets and short and long-term liabilities associated with our Operating leases are shown as separate line items on our Condensed Consolidated Balance Sheets. Finance leases are included in property, plant, and equipment, net, and the related finance lease obligations are presented within debt on our Condensed Consolidated Balance Sheets. The Company's finance leases are immaterial. ROU assets, along with any other related long-lived assets, are periodically evaluated for impairment.

ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. ROU assets and liabilities are recognized at the lease commencement date based on the present value of lease payments over the lease term. Lease payments primarily include rent and insurance costs (lease components). The Company's leases also include non-lease components such as real estate taxes and common-area maintenance costs. The Company elected the practical expedient to account for lease and non-lease components as a single component. In certain of the Company's leases, the non-lease components are variable and in accordance with the standard are therefore excluded from lease payments to determine the ROU asset. As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at the commencement date in determining the present value of lease payments. We use the implicit rate when readily determinable. Our determination of the lease term may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option.

For operating leases, fixed lease payments are recognized as operating lease cost on a straight-line basis over the lease term. For finance leases, the ROU asset is included in property, plant and equipment, net and is depreciated on a straight-line basis over the remaining lease term, along with recognition of interest expense associated with accretion of the lease liability. For leases with a lease term of 12 months or less (a "Short-term" lease), any fixed lease payments are recognized on a straight-line basis over such term, and are not recognized on the Condensed Consolidated Balance Sheets. Variable lease costs are recognized as incurred. Components of operating lease costs are as follows:

(a) Primarily relates to common-area maintenance and property taxes.

(b) Not recorded on the balance sheet.

Supplemental cash flow information was as follows:

Supplemental Condensed Consolidated Balance Sheet information related to leases was as follows:

(1) Finance lease assets are recorded net of accumulated depreciation of $78 and $66 as of March 31, 2026 and September 30, 2025, respectively.

The aggregate future maturities of lease payments for operating leases and finance leases as of March 31, 2026 are as follows:

(a) Excluding the six months ended March 31, 2026.

Average lease terms and discount rates at March 31, 2026 were as follows:

NOTE 20 —COMMITMENTS AND CONTINGENCIES

Legal and environmental

Peekskill Site. Lightron Corporation (“Lightron”), a wholly-owned subsidiary of Griffon, once conducted lamp manufacturing and metal finishing operations at a location in the Town of Cortlandt, New York, just outside the city of Peekskill, New York (the “Peekskill Site”) which was owned by ISC Properties, Inc. (“ISCP”), a wholly-owned subsidiary of Griffon, for approximately three years. ISCP sold the Peekskill Site in December 1982.

Based upon studies conducted by ISCP and the New York Department of Environmental Conservation, soils and groundwater beneath the Peekskill Site contain chlorinated solvents and metals. Stream sediments downgradient from the Peekskill Site also contain metals. On May 15, 2019 the United States Environmental Protection Agency ("EPA") added the Peekskill Site to the National Priorities List under CERCLA and has since reached agreement with Lightron and ISCP pursuant to which Lightron and ISCP will perform a Remedial Investigation/Feasibility Study (“RI/FS”). Performance of the RI/FS is expected to be completed in 2027.

Lightron has not engaged in any operations in over three decades. ISCP functioned solely as a real estate holding company and has not held any real property in over three decades. Griffon does not acknowledge any responsibility to perform any investigation or remediation at the Peekskill Site. Lightron and ISCP are being defended by an insurance company, subject to a reservation of rights, and the insurance company is paying the costs of the RI, with Lightron and ISCP paying for the FS.

Memphis, TN site. Hunter Fan Company (“Hunter”) operated headquarters and a production plant in Memphis, TN for over 50 years (the “Memphis Site”). While Hunter completed certain on-site remediation of PCB-contaminated soils, Hunter did not investigate the extent to which PCBs existed beneath the building itself nor determine whether off-site areas had been impacted. Hunter vacated the site approximately twenty years ago, and the on-site buildings have now been demolished.

The State of Tennessee Department of Environment and Conservation (“TDEC”) identified the Memphis site as being potentially contaminated, raising the possibility that site operations could have resulted in soil and groundwater contamination involving volatile organic compounds and metals. In 2021, the TDEC performed a preliminary assessment of the site and recommended to the EPA that it include the site on the National Priorities List established under CERCLA. The TDEC further recommended that the EPA fund an investigation of potential soil gas contamination in receptors near the site. The TDEC has also indicated that it will proceed with this investigation if the EPA does not act. Since 2021, there has been no further action by the EPA or TDEC relating to the Memphis site.

It is unknown whether the EPA will add the Memphis Site to the National Priorities List, whether a site investigation will reveal contamination and, if there is contamination, the extent of any such contamination. However, given that certain PCB work was not completed in the past and the TDEC’s stated intent for the EPA to perform an investigation (and the statement by the TDEC that it will perform the investigation if the EPA will not), liability is probable in this matter. There are other potentially responsible parties for this site, including a former owner of Hunter; Hunter has notified such former owner of this matter.

If the EPA decides to add this site to the National Priorities List, a Remedial Investigation/Feasibility Study (“RI/FS”) will be required. Hunter expects that the EPA will ask it to perform this work. If Hunter does not reach an agreement with the EPA to perform this work, the EPA will implement the RI/FS on its own. Should the EPA implement the RI/FS or perform further studies and/or subsequently remediate the site without first reaching an agreement with one or more relevant parties, the EPA would likely seek reimbursement from such parties, including Hunter, for the costs incurred.

General legal

Griffon is subject to various laws and regulations relating to the protection of the environment and is a party to legal proceedings arising in the ordinary course of business. Management believes, based on facts presently known to it, that the resolution of the matters above and such other matters will not have a material adverse effect on Griffon’s consolidated financial position, results of operations or cash flows.