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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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FORM 10-Q

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

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For the Quarterly Period Ended August 31, 2026

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or

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

For the transition period from                    to                   

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Commission File Number: 1-6263

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(Registrant’s telephone number, including area code)

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 ☐

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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 ☐

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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.

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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. ☐

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

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As of August 31, 2026, there were 40,194,211 shares of the registrant’s Common Stock, $1.00 par value per share, outstanding.

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AAR CORP. and Subsidiaries

Quarterly Report on Form 10-Q

For the Quarter Ended August 31, 2026

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AAR CORP. and Subsidiaries

Condensed Consolidated Balance Sheets

As of August 31, 2026 and May 31, 2026

(In millions, except share data)

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The accompanying Notes to Condensed Consolidated Financial

Statements are an integral part of these statements.

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The accompanying Notes to Condensed Consolidated Financial

Statements are an integral part of these statements.

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The accompanying Notes to Condensed Consolidated Financial

Statements are an integral part of these statements.

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The accompanying Notes to Condensed Consolidated Financial

Statements are an integral part of these statements.

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The accompanying Notes to Condensed Consolidated Financial

Statements are an integral part of these statements.

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AAR CORP. and Subsidiaries

1. Basis of Presentation

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AAR CORP. and its subsidiaries are referred to herein collectively as “AAR,” “Company,” “we,” “us,” or “our,” unless the context indicates otherwise. The accompanying Condensed Consolidated Financial Statements include the accounts of AAR and its subsidiaries after elimination of intercompany accounts and transactions.

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We have prepared these statements without audit, pursuant to the rules and regulations of the United States Securities and Exchange Commission (“SEC”). The Condensed Consolidated Balance Sheet as of May 31, 2026 has been derived from audited financial statements. To prepare the financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”), management has made a number of estimates and assumptions relating to the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities. Actual results could differ from those estimates. Certain information and note disclosures, normally included in comprehensive financial statements prepared in accordance with GAAP, have been condensed or omitted pursuant to such rules and regulations of the SEC. These Condensed Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and notes thereto included in our Annual Report on Form 10-K for the fiscal year ended May 31, 2026.

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In the opinion of management, the Condensed Consolidated Financial Statements reflect all adjustments (which consist only of normal recurring adjustments) necessary to present fairly the Condensed Consolidated Financial Statements of AAR CORP. and its subsidiaries as of August 31, 2026 and for the three-month periods ended August 31, 2026 and 2025. The results of operations for such interim periods are not necessarily indicative of the results for the full year.

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Certain reclassifications have been made to the prior year presentation to conform to the fiscal 2027 presentation.

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New Accounting Pronouncements Not Yet Adopted

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In November 2024, the Financial Accounting Standards Board issued Accounting Standards Update (“ASU”) No. 2024-03, Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures (Subtopic 220-40), Disaggregation of Income Statement Expenses. This ASU includes new disclosure requirements about specific expense categories, including but not limited to, purchases of inventory, employee compensation, depreciation, amortization, and selling expenses that are included in certain expense captions presented on the face of the income statement. The ASU is effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027. Early adoption is permitted and the ASU can be applied on a prospective or retrospective basis. We expect this ASU to only impact our disclosures with no impacts to our results of operations, cash flows, and financial condition.

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AAR CORP. and Subsidiaries

Notes to Condensed Consolidated Financial Statements

August 31, 2026

(Unaudited)

(Dollars in millions, except per share amounts)

2. Acquisitions

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Acquisition of Aircraft Reconfig Technologies

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On April 24, 2026, we acquired the outstanding shares of Aircraft Reconfig Technologies (“ART”), a leading aircraft interiors engineering company for $36.3 million including post-closing adjustments for cash, working capital, and indebtedness.

We accounted for the acquisition using the acquisition method and included the results of ART’s operations in our consolidated financial statements from the effective date of the acquisition. ART’s results are reported within our Repair, Engineering, and Software segment. The base purchase price of $36.0 million was paid at closing and post-closing adjustments of $0.3 million were resolved and paid in the three-month period ended August 31, 2026. Transaction costs associated with the acquisition of $1.1 million were expensed as incurred during fiscal 2026.

The purchase price was allocated to identifiable assets and liabilities based on information available at the date of acquisition. The allocation of the purchase price is preliminary and may change in future periods as fair value estimates of the assets acquired and liabilities assumed are finalized, including those related to working capital, intangible assets, property and equipment, leases, and indemnification assets.

The final determination of the fair values will be completed within the one-year measurement period. The preliminary fair value of assets acquired and liabilities assumed is as follows:

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Acquired amortizable intangible assets include customer relationships of $7.0 million, developed technology of $3.9 million, and backlog of $3.1 million, which are being amortized over 9.5 years, 6 years, and 3 years, respectively. The goodwill associated with the ART acquisition is deductible for tax purposes and is primarily attributable to the benefits we expect to derive from expected synergies including complementary product lines, cross-selling opportunities, operational efficiencies, and intangible assets that do not qualify for separate recognition, such as their assembled workforce.

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Acquisition of HAECO Americas

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On November 3, 2025, we acquired the outstanding shares of HAECO Americas, LLC and its subsidiary HAECO Airframe Services, LLC (together, “HAECO Americas”) from HAECO USA, Inc. for a purchase price of $78.0 million, which includes estimated post-closing adjustments for cash, working capital, and indebtedness. HAECO Americas provides heavy aircraft maintenance, repair, and overhaul (“MRO”) and modification services across its hangars located in Greensboro, North Carolina and Lake City, Florida.

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We accounted for the acquisition using the acquisition method and included the results of HAECO Americas’ operations in our consolidated financial statements from the effective date of the acquisition. HAECO Americas’ results are reported within our Repair, Engineering, and Software segment. The base purchase price was paid at closing and transaction costs associated with the acquisition of $3.3 million were expensed as incurred in fiscal 2026.

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The purchase price was allocated to identifiable assets and liabilities based on information available at the date of acquisition. The allocation of the purchase price is preliminary and may change in future periods as fair value estimates of the assets acquired and liabilities assumed are finalized, including those primarily related to working capital.

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Notes to Condensed Consolidated Financial Statements

August 31, 2026

(Unaudited)

(Dollars in millions, except per share amounts)

The preliminary fair value of the identifiable assets acquired exceeded the total purchase price resulting in a bargain purchase gain of $29.5 million, which we recognized in fiscal 2026. We believe the acquisition resulted in a bargain purchase gain as the seller was highly motivated to divest the business as part of its long-term strategies.

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The final determination of the fair values will be completed within the one-year measurement period. The preliminary fair value of assets acquired and liabilities assumed is as follows:

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As part of our integration activities, we are consolidating our facility footprint, which includes closing our Indianapolis, Indiana airframe maintenance facility and relocating the majority of those operations to the Greensboro, North Carolina facility. Expenses incurred for integration activities during the three-month period ended August 31, 2026 were $3.5 million.

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Acquisition of ADI

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On September 25, 2025, we acquired the outstanding shares of American Distributors Holding Co., LLC (“ADI”), including ADI American Distributors, LLC and other of ADI’s subsidiaries, for a purchase price of $137.1 million. The post-closing adjustments for cash, working capital and indebtedness were resolved in the third quarter of fiscal 2026 resulting in a $0.6 million reduction in the purchase price.

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ADI is a leading distributor of electronic components and assemblies to original equipment manufacturers (“OEMs”) across the aerospace and defense industry. The initial purchase price was paid at closing except for $4.5 million, which was placed on deposit with an escrow agent to secure potential indemnification obligations and fund post-closing adjustments for working capital and indebtedness. During the three-month period ended February 28, 2026, the post-closing adjustments were finalized resulting in the release of $1.0 million from the escrow. During the three-month period ended August 31, 2026, an additional $1.4 million was released from the escrow.

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We accounted for the acquisition using the acquisition method and included the results of ADI’s operations in our consolidated financial statements from the effective date of the acquisition. ADI’s results are reported within our Parts Supply segment.

The purchase price was allocated to identifiable assets and liabilities based on information available at the date of acquisition. The final fair value of assets acquired and liabilities assumed is as follows:

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Acquired amortizable intangible assets include customer relationships of $43.3 million and backlog of $16.4 million, which are being amortized over 12.5 years and 3 years, respectively. We also recognized indefinite-lived trademarks of $16.1 million. The goodwill associated with the ADI acquisition is deductible for tax purposes and is primarily attributable to the benefits we expect to derive from expected synergies including complementary product lines, cross-selling opportunities, operational efficiencies, and intangible assets that do not qualify for separate recognition, such as their assembled workforce. Expenses incurred for integration activities during the three-month period ended August 31, 2026 were $0.2 million.

Acquisition of Aerostrat

On August 11, 2025, we acquired the outstanding shares of Aerostrat Corp. (“Aerostrat”) for a purchase price of $15.0 million plus contingent consideration of up to $5.0 million. Aerostrat is a leading long-range maintenance planning software provider used by airlines, MRO facilities, and cargo companies to automate complex scheduling, ensure production capacity, and simplify aircraft allocation.

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The purchase price was paid at closing except for $3.1 million, which was placed on deposit with an escrow agent to secure potential indemnification obligations and fund post-closing adjustments for working capital and indebtedness. During the three-month period ended August 31, 2026, the post-closing adjustments were finalized resulting in the release of $1.5 million from the escrow.

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The contingent consideration includes $1.0 million subject to the successful launch of certain product offerings by December 31, 2026 and up to $4.0 million based on the achievement of adjusted revenue targets by August 1, 2028. The estimated fair value of the contingent consideration was $4.0 million at the acquisition date and has been included in the purchase price.

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We accounted for the acquisition using the acquisition method and included the results of Aerostrat’s operations in our consolidated financial statements from the effective date of the acquisition. Aerostrat’s results are reported within our Repair, Engineering, and Software segment.

The final fair value of assets acquired and liabilities assumed is as follows:

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Acquired amortizable intangible assets include customer relationships of $4.7 million and developed technology of $4.9 million, which are being amortized over 10 years and 20 years, respectively. Intangible assets also include tradenames of $0.7 million, which are indefinite-lived. The goodwill associated with the Aerostrat acquisition is not deductible for tax purposes and is primarily attributable to the benefits we expect to derive from expected synergies including complementary products and services, cross-selling opportunities and intangible assets that do not qualify for separate recognition, such as their assembled workforce.

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AAR CORP. and Subsidiaries

Notes to Condensed Consolidated Financial Statements

August 31, 2026

(Unaudited)

(Dollars in millions, except per share amounts)

Acquisition of Triumph Group’s Product Support Business

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On March 1, 2024, we completed the acquisition of Triumph Group, Inc.’s Product Support business (“Product Support”) for a purchase price of $720.0 million. Product Support is a leading global provider of specialized MRO capabilities for critical aircraft components in the commercial and defense markets, providing MRO services for structural components, engine and airframe accessories, interior refurbishment and wheels and brakes. Product Support also designs proprietary designated engineering representative repairs and parts manufacturer approval parts.

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As part of our integration activities, we are consolidating our facility footprint which included the closure of our Garden City, New York leased component repair facility and relocating those operations to certain Product Support facilities. In conjunction with the facility exit, environmental remediation obligations were identified and we recognized a liability for $1.1 million in fiscal 2026 as our estimate of the future costs associated with the remediation. The timing of expenditures depends on a number of factors, including the nature and extent of contamination, the timing of regulatory approvals, the complexity of the investigation and remediation, and the standards for remediation. In addition to the liability for the environmental remediation obligations, we also recognized a liability of $0.5 million which represents our estimated settlement cost for a related landlord dispute.

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Expenses recognized for integration activities, including facility closure costs, product line exits, severance, retention, and other related costs, were $1.0 million during the three-month period ended August 31, 2025. The integration was completed in fiscal 2026.

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Acquisition of Trax USA Corp.

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On March 20, 2023, we acquired the outstanding shares of Trax USA Corp. (“Trax”) for a purchase price of $120.0 million plus contingent consideration of up to $20.0 million based on Trax’s adjusted revenue in calendar years 2023 and 2024. Trax is a leading provider of aircraft MRO and fleet management software supporting a broad spectrum of maintenance activities for a diverse global customer base of airlines and MROs.

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The contingent consideration is based on an adjusted cumulative revenue target across calendar years 2023 and 2024. The adjusted cumulative revenue target is based on revenue recognized under U.S. GAAP adjusted for certain events related to deferred revenue, customer commitments, and other adjustments. The contingent consideration is treated as compensation expense within Selling, general, and administrative expenses. During the three-month period ended August 31, 2026, we recognized $4.9 million of compensation expense related to the contingent consideration. As of August 31, 2026, we have a contingent consideration liability of $13.0 million, which was classified as Accrued liabilities on our Condensed Consolidated Balance Sheet.

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In November 2025, Trax’s former owners filed a demand for arbitration contesting the determination of the contingent consideration and certain tax matters. We strongly disagree with the claims by Trax’s former owners and we believe we have adequate support for our determination of the contingent consideration and our positions on the tax matters. We expect to finalize the contingent consideration in fiscal 2027.

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AAR CORP. and Subsidiaries

Notes to Condensed Consolidated Financial Statements

August 31, 2026

(Unaudited)

(Dollars in millions, except per share amounts)

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3. Revenue Recognition

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Revenue is measured based on the consideration specified in a contract with a customer and excludes any sales incentives and amounts collected on behalf of third parties. We recognize revenue when we satisfy a performance obligation by transferring control over a product or service to a customer.

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Our unit of accounting for revenue recognition is a performance obligation included in our customer contracts. A performance obligation reflects the distinct good or service that we must transfer to a customer. At contract inception, we evaluate if the contract should be accounted for as a single performance obligation or if the contract contains multiple performance obligations. In some cases, our contract with the customer is considered one performance obligation as it includes factors such as whether the good or service being provided is significantly integrated with other promises in the contract, whether the service provided significantly modifies or customizes another good or service or whether the good or service is highly interdependent or interrelated. If the contract has more than one performance obligation, we determine the standalone price of each distinct good or service underlying each performance obligation and allocate the transaction price based on their relative standalone selling prices.

The transaction price of a contract, which can include both fixed and variable amounts, is allocated to each performance obligation identified. Some contracts contain variable consideration, which could include incremental fees or penalty provisions related to performance. Variable consideration that can be reasonably estimated based on current assumptions and historical information is included in the transaction price at the inception of the contract but limited to the amount that is probable that a significant reversal in the amount of cumulative revenue recognized will not occur. Variable consideration that cannot be reasonably estimated is recorded when known.

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Our performance obligations are satisfied over time as work progresses or at a point in time based on transfer of control of products and services to our customers. The majority of our sales from products typically represent distinct performance obligations and are recognized at a point in time upon transfer of control to the customer, which generally occurs upon shipment. In connection with certain sales of products, we also provide logistics services, which include inventory management, replenishment, and other related services. The price of such services is generally included in the price of the products delivered to the customer, and revenues are recognized upon delivery of the product, at which point the customer has obtained control of the product. We do not account for these services separate from the related product sales as the services are inputs required to fulfill part orders received from customers.

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For our performance obligations that are satisfied over time, we measure progress in a manner that depicts the performance of transferring control to the customer. As such, we utilize the input method of cost-to-cost to recognize revenue over time as this depicts when control of the promised goods or services are transferred to the customer. Revenue is recognized based on the relationship of actual costs incurred to date to the estimated total cost at completion of the performance obligation.

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We are required to make certain judgments and estimates, including estimated revenues and costs, as well as inflation and the overall profitability of the arrangement. Key assumptions involved can include customer volume, future labor costs and efficiencies, repair or overhaul costs, overhead costs, and ultimate timing of product delivery. Differences may occur between the judgments and estimates made by management and actual program results. For contracts that are deemed to be loss contracts, we establish forward loss reserves for total estimated costs that are in excess of total estimated consideration in the period in which they become known.

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We utilize the portfolio approach to estimate the amount of revenue to recognize for certain contracts which require over time revenue recognition. Such contracts are grouped together either by revenue stream, customer or product line with each portfolio of contracts grouped together based on having similar characteristics. The portfolio approach is utilized only when the result of the accounting is not expected to be materially different than if applied to individual contracts.

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We also may enter into offset agreements or conditions as part of obtaining orders for our products and services from certain government customers in foreign countries. These agreements are designed to enhance the social and economic environment of the foreign country by requiring the contractor to promote investment in the country. These agreements also may be satisfied through our use of cash or other means of providing financial support for in-country projects with local companies. The amounts ultimately applied against our offset agreements are based on negotiations with the customer and satisfaction of our offset obligations are included in the estimates of our total costs to complete the contract.

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Notes to Condensed Consolidated Financial Statements

August 31, 2026

(Unaudited)

(Dollars in millions, except per share amounts)

When contracts are modified, we consider whether the modification either creates new or changes the existing enforceable rights and obligations. Contract modifications that are for goods or services that are not distinct from the existing contract, due to the significant integration with the original goods or services provided, are accounted for as if they were part of that existing contract with the effect of the contract modification recognized as an adjustment to revenue on a cumulative catch-up basis. When the modifications include additional performance obligations that are distinct, they are accounted for as a new contract and performance obligation, which are recognized prospectively.

Certain contracts with customers have options for the customer to acquire additional goods or services. In most cases, the pricing of these options are reflective of the standalone selling price of the good or service. These options do not provide the customer with a material right and are accounted for only when the customer exercises the option to purchase the additional goods or services. If the option on the customer contract was not indicative of the standalone selling price of the good or service, the material right would be accounted for as a separate performance obligation.

Under most of our U.S. government contracts, if the contract is terminated for convenience, we are entitled to payment for items delivered and fair compensation for work performed, the costs of settling and paying other claims, and a reasonable profit on the costs incurred or committed.

In the performance of our government contracts, we routinely request contract modifications that require additional funding from the customer. Most often, these requests are due to customer-directed changes in the scope of work. While we are entitled to recovery of these costs under our contracts, the administrative process with our customer may be protracted. Based on the circumstances, we periodically file requests for equitable adjustment (“REAs”) that are sometimes converted into claims. In some cases, these REAs are disputed by our customer. We believe our outstanding modifications, REAs and other similar claims will be resolved without material impact to our results of operations, financial condition or cash flows.

In the ordinary course of business, agencies of the U.S. and other governments audit our claimed costs and conduct inquiries and investigations of our business practices with respect to government contracts to determine whether our operations are conducted in accordance with these requirements and the terms of the relevant contracts. U.S. government agencies, including the Defense Contract Audit Agency (“DCAA”), routinely audit our claimed indirect costs, for compliance with the Cost Accounting Standards and the Federal Acquisition Regulations. These agencies also conduct reviews and investigations and make inquiries regarding our accounting and other systems in connection with our performance and business practices with respect to our government contracts and subcontracts.

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Costs to fulfill and obtain a contract are considered for capitalization based on contract specific facts and circumstances. The incremental costs to fulfill a contract, including setup and implementation costs prior to beginning the period of performance, are capitalized when expenses are incurred prior to the start of satisfying a performance obligation. The capitalized costs are subsequently expensed over the contract’s period of performance.

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We have elected to use certain practical expedients permitted under Accounting Standards Codification (“ASC”) 606. Shipping and handling fees and costs incurred associated with outbound freight after control over a product has transferred to a customer are accounted for as a fulfillment cost and are included in Cost of sales on our Condensed Consolidated Statements of Income, and are not considered a performance obligation to our customers. Our reported Sales on our Condensed Consolidated Statements of Income include sales and related non-income taxes. We also utilize the “as invoiced” practical expedient in certain cases where performance obligations are satisfied over time and the invoiced amount corresponds directly with the value we are providing to the customer.

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Cumulative Catch-up Adjustments

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Changes in estimates and assumptions related to our arrangements accounted for using the cost-to-cost method are recorded using the cumulative catch-up method of accounting. These changes are primarily adjustments to the estimated profitability for our long- term programs where we provide component inventory management, supply chain logistics programs, and/or repair services.

For the three-month period ended August 31, 2026, we recognized unfavorable cumulative catch-up adjustments of $(3.4) million. For the three-month period ended August 31, 2025, we recognized no cumulative catch-up adjustments.

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Notes to Condensed Consolidated Financial Statements

August 31, 2026

(Unaudited)

(Dollars in millions, except per share amounts)

Contract Assets and Liabilities

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The timing of revenue recognition, customer billings, and cash collections results in a contract asset or contract liability at the end of each reporting period. For instances where we recognize revenue prior to having an unconditional right to payment, we record a contract asset. When an unconditional right to consideration exists, we reduce our contract asset and recognize an unbilled or trade receivable. When amounts are dependent on factors other than the passage of time in order for payment from a customer to be due, we record a contract asset which consists of costs incurred where revenue recognized over time using the cost-to-cost model exceeds the amounts billed to customers. Contract liabilities include advance payments and billings in excess of revenue recognized. Certain customers make advance payments prior to the satisfaction of our performance obligations on the contract. These amounts are recorded as contract liabilities until such performance obligations are satisfied, either over time as costs are incurred or at a point in time when deliveries are made. Contract assets and contract liabilities are determined on a contract-by-contract basis.

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Net contract assets and liabilities are as follows:

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Contract assets – non-current is reported within Other non-current assets and deferred revenue on long-term contracts is reported within Other liabilities on our Condensed Consolidated Balance Sheets. Changes in contract assets and contract liabilities primarily result from the timing difference between our performance of services and payments from customers.

During the first quarter of fiscal 2025, our Mobility Systems’ business received a stop-work order from our U.S. government customer on the Next Generation Pallet contract as the program was terminated for convenience by the customer. Under the conditions for the termination for convenience, we have the right to submit a proposal for recovery of our incurred costs. In conjunction with the termination, we expensed equipment and inventory of $12.7 million in the first quarter of fiscal 2025 and recognized a contract asset of $9.5 million reflecting the estimated recovery on our incurred costs.

During the third quarter of fiscal 2025, we submitted our termination settlement proposal to the customer and increased our contract asset to $13.5 million based on the revised estimated recovery. In conjunction with the termination settlement proposal submission, we also expensed an additional $1.0 million of equipment and other costs.

Changes in our deferred revenue were as follows for the three-month periods ended August 31, 2026 and 2025:

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Notes to Condensed Consolidated Financial Statements

August 31, 2026

(Unaudited)

(Dollars in millions, except per share amounts)

Remaining Performance Obligations

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As of August 31, 2026, we had approximately $866 million of remaining performance obligations, also referred to as firm backlog, which excludes unexercised contract options and potential orders under our indefinite-delivery, indefinite-quantity contracts. We expect that approximately 70% of this backlog will be recognized as revenue over the next 12 months, an additional 15% of the firm backlog over the following 12 months, and the balance thereafter. The amount of remaining performance obligations that are expected to be recognized as revenue beyond 12 months primarily relates to our long-term programs where we provide component inventory management, supply chain logistics programs, and/or repair services.

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All sales within the Legacy Commercial Programs operating segment are to commercial customers, and there are no significant sales to commercial customers in the Government Solutions operating segment.

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Consolidated sales by geographic region for the three-month periods ended August 31, 2026 and 2025 were as follows:

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Notes to Condensed Consolidated Financial Statements

August 31, 2026

(Unaudited)

(Dollars in millions, except per share amounts)

4. Restricted Cash

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Restricted cash represents cash on hand that is legally restricted as to withdrawal or usage. As of August 31, 2026, restricted cash includes $5.7 million on deposit with escrow agents related to our recent acquisitions and $2.9 million required to be set aside by a contractual agreement to provide servicing related to receivable securitization arrangements.

The restrictions related to our acquisitions lapse at the time of resolution of certain contingencies including tax contingencies. The restrictions related to the receivable securitization arrangements lapse at the time we remit the customer payments collected by us as servicer of previously sold customer receivables to the purchaser.

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5. Accounts Receivable

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Financial instruments that potentially subject us to concentrations of market or credit risk consist principally of trade receivables. While our trade receivables are diverse and represent a number of entities and geographic regions, the majority are with the U.S. government and its contractors and entities in the aviation industry. The composition of our accounts receivable is as follows:

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6. Equity

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Stock-Based Compensation

In July 2026, as part of our annual long-term stock incentive compensation, we granted 217,562 shares of performance-based restricted stock and 91,749 shares of time-based restricted stock to eligible employees. The grant date fair value per share for these shares was $129.47 (the closing price per share of our common stock on the grant date). We also granted 15,004 shares of time-based restricted stock to members of the Board of Directors with a grant date fair value per share of $109.99 (the closing price per share of our common stock on the grant date). No stock options were granted in fiscal 2027.

In July 2026, we granted 161,500 shares of restricted stock to our Chairman, President, and Chief Executive Officer which is tied to our stock price performance. The restricted stock grant vests on July 31, 2031 with the number of shares ultimately vesting based on our stock price meeting or exceeding certain stock price hurdle thresholds on or prior to July 31, 2031 which include stock prices of $175 (one-third of the shares will vest), $200 (an additional one-third of the shares will vest), and $250 (the remaining one-third of the shares will vest). The fair value of the grant was estimated at $15.0 million using a Monte Carlo simulation model for the market-based grant.

Expense charged to operations for restricted stock during each of the three-month periods ended August 31, 2026 and 2025 was $7.1 million and $4.2 million, respectively.

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Notes to Condensed Consolidated Financial Statements

August 31, 2026

(Unaudited)

(Dollars in millions, except per share amounts)

The total intrinsic value of stock options exercised during the three-month periods ended August 31, 2026 and 2025 was $1.1 million and $4.6 million, respectively. Expense charged to operations for stock options during the three-month periods ended August 31, 2026 and 2025 was $0.7 million and $1.1 million, respectively.

Stock-based compensation expense is recognized on a straight-line basis over the requisite service period based on the equity’s grant date fair value. For participants who are or become retirement-eligible during the service period, stock-based compensation expense is recognized over the period ending on the date the participant becomes retirement-eligible.

Earnings per Share

The computation of basic earnings per share is based on the weighted average number of common shares outstanding during each period. The computation of diluted earnings per share is based on the weighted average number of common shares outstanding during the period plus, when their effect is dilutive, incremental shares related to outstanding stock options.

At August 31, 2026, no stock options were determined to be anti-dilutive. The potential dilutive effect of 64,000 shares relating to stock options was excluded from the computation of weighted average common shares outstanding – diluted for the three-month period ended August 31, 2025. These shares would have been anti-dilutive because the exercise price of these options was greater than the average market price of the common shares for the period.

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7. Inventories

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The summary of inventories is as follows:

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8. Supplemental Cash Flow Information

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9. Sale of Receivables

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On February 23, 2018, we entered into a Purchase Agreement with Citibank N.A. (“Purchaser”) for the sale, from time to time, of certain accounts receivable due from certain customers (the “Purchase Agreement”). Under the Purchase Agreement, the maximum amount of receivables sold is limited to $150 million and Purchaser may, but is not required to, purchase the eligible receivables we offer to sell. The term of the Purchase Agreement runs through February 22, 2027, but, the Purchase Agreement may also be terminated earlier under certain circumstances. The term of the Purchase Agreement shall be automatically extended for annual terms unless either party provides advance notice that they do not intend to extend the term.

We have no retained interests in the sold receivables, other than limited recourse obligations in certain circumstances, and only perform collection and administrative functions for the Purchaser. We account for these receivable transfers as sales under ASC 860, Transfers and Servicing, and de-recognize the sold receivables from our Condensed Consolidated Balance Sheets. At August 31, 2026, we have utilized $22.1 million, which reduced the availability under the Purchase Agreement to $127.9 million.

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Notes to Condensed Consolidated Financial Statements

August 31, 2026

(Unaudited)

(Dollars in millions, except per share amounts)

During the three-month periods ended August 31, 2026 and 2025, we sold $61.1 million and $49.2 million, respectively, of receivables under the Purchase Agreement and remitted $61.8 million and $46.2 million, respectively, to the Purchaser on their behalf. As of August 31, 2026 and May 31, 2026, we had collected cash of $2.9 million and $11.8 million, respectively, which was not yet remitted to the Purchaser as of those dates and was classified as Restricted cash on our Condensed Consolidated Balance Sheets.

We recognize discounts on the sale of our receivables and other fees related to the Purchase Agreement in Other expense, net on our Condensed Consolidated Statements of Income. We incurred discounts on the sale of our receivables of $0.2 million and $0.2 million during the three-month periods ended August 31, 2026 and 2025, respectively.

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10. Financing Arrangements

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A summary of the carrying amount of our debt is as follows:

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Credit Agreement

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On December 14, 2022, we entered into a new credit agreement with various financial institutions as lenders and Wells Fargo Bank, N.A. as administrative agent for the lenders (the “Credit Agreement”) that included an unsecured revolving credit facility (the “Revolving Credit Facility”) that we can draw upon for working capital and general corporate purposes. In conjunction with the Credit Agreement, we terminated our revolving credit facility under the credit agreement dated April 12, 2011, as amended, (the “2011 Credit Agreement”) with the outstanding borrowings under the 2011 Credit Agreement at the date of its termination rolled over to the Credit Agreement.

On March 1, 2024, we entered into an amendment (the “Revolver Amendment”) to our Credit Agreement, which governs the Company’s existing revolving credit facility (the revolving credit facility as amended by the Revolver Amendment, the “Amended Revolving Credit Facility”). Among other things, the Revolver Amendment (i) increased the aggregate commitments under the Amended Revolving Credit Facility to $825.0 million from $620 million under the Revolving Credit Facility, (ii) increased the maximum leverage ratio permitted under the financial covenants applicable to the Amended Revolving Credit Facility and (iii) included an additional pricing level that will increase the applicable interest rate margins on the Amended Revolving Credit Facility to 250 basis points (in the case of secured overnight financing rate (“SOFR”)) and 150 basis points (in the case of Base Rate loans) if our adjusted total debt to EBITDA ratio exceeds 3.75:1.00.

Under certain circumstances, we may request an increase to the lending commitments under the Credit Agreement by an aggregate amount of up to $300 million, not to exceed $1,125 million in total. The Credit Agreement expires on December 14, 2027. Borrowings under the Credit Agreement bear interest at an applicable variable rate based on SOFR plus 112.5 to 250 basis points based on certain financial measurements plus 10 basis points if a SOFR loan, or at the offered fluctuating Base Rate plus 12.5 to 150 basis points based on certain financial measurements if a Base Rate loan.

Borrowings outstanding under the Amended Revolving Credit Facility at August 31, 2026 were $185.0 million and there were $7.7 million of outstanding letters of credit, which reduced the availability of this facility to $632.3 million.

Our Credit Agreement requires us to comply with leverage and interest coverage ratios and comply with certain affirmative and negative covenants, including those relating to financial reporting and notification, compliance with applicable laws, and limitations on additional liens, indebtedness, acquisitions, investments and disposition of assets. Our Credit Agreement also requires our significant domestic subsidiaries to provide a guarantee of payment under the Credit Agreement.

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AAR CORP. and Subsidiaries

Notes to Condensed Consolidated Financial Statements

August 31, 2026

(Unaudited)

(Dollars in millions, except per share amounts)

Senior Notes – Original Issuance

On March 1, 2024, we issued $550.0 million aggregate principal amount of 6.75% Senior Notes due 2029 (the “Notes”) to fund a portion of the purchase price for the acquisition of the Product Support business. The Notes were issued pursuant to an indenture (the “Base Indenture”), dated as of March 1, 2024, between us and Wilmington Trust, National Association (the “Trustee”), as trustee, and a First Supplemental Indenture, dated as of March 1, 2024 (together with the Base Indenture, the “Indenture”), among us, the Note Guarantors (as defined below) and the Trustee.

Our domestic subsidiaries that guarantee the Amended Revolving Credit Facility (collectively, the “Note Guarantors”) guaranteed (the “Note Guarantees”) all of the Company’s obligations under the Notes and the Indenture. The Notes and the Note Guarantees have not been, and will not be, registered under the Securities Act of 1933, as amended (the “Securities Act”).

The Notes bear interest at a rate of 6.75% per year, payable semiannually in cash in arrears on March 15 and September 15 of each year, commencing September 15, 2024. The Notes will mature on March 15, 2029. The Company may redeem the Notes, in whole or in part, at specified redemption prices if redeemed during the twelve-month period beginning on March 15 of the years indicated below:

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The Notes are jointly and severally guaranteed by each of the Note Guarantors. The Notes and the Note Guarantees are the general unsecured obligations of us or each of the Note Guarantors and, as applicable, (i) rank equal in right of payment to all of our or such Note Guarantor’s existing and future senior indebtedness, (ii) rank senior in right of payment to all of our or such Note Guarantor’s obligations that are, by their terms expressly subordinated in right of payment to the Notes or the Note Guarantees, (iii) are effectively subordinated to all of our or such Note Guarantor’s secured indebtedness, to the extent of the value of the assets securing such indebtedness and (iv) in the case of the Note Guarantees, are structurally subordinated to indebtedness and other liabilities of our subsidiaries that are not Note Guarantors.

The Indenture contains customary covenants, including limitations on the ability of us and our restricted subsidiaries to (i) incur debt, certain disqualified stock and preferred stock, (ii) create liens, (iii) pay dividends or distributions or redeem or repurchase equity, (iv) prepay subordinated debt or make certain investments, (v) transfer and sell assets, (vi) engage in consolidations, mergers or dispositions of all or substantially all of our or their assets, (vii) enter into agreements that restrict dividends, loans and other distributions from subsidiaries and (viii) enter into transactions with affiliates. These covenants are subject to a number of important exceptions and qualifications described in the Indenture. In addition, the Indenture contains a number of customary events of default, including, among other things, payment default, failure to comply with covenants or agreements contained in the Indenture or the Notes and certain provisions related to bankruptcy events.

Senior Notes – Subsequent Issuance

On August 14, 2025, we issued an additional $150.0 million aggregate principal amount of our Notes (the “Additional Notes”). The Additional Notes were issued under the existing Indenture and other than with respect to the date of issuance and the offering price, the Additional Notes have the same terms as the Notes.

Debt issuance costs of $2.5 million were incurred in connection with the Additional Notes which were issued at an original issuance premium 102% of their principal amount, or $3.0 million. The premium and debt issuance costs are amortized and recognized as interest expense using the effective interest rate method, or, when the results are not materially different, on a straight-line basis over the expected term of the related debt. The premium and debt issuance costs are classified within Long-term debt on our Condensed Consolidated Balance Sheet and are amortized into interest expense over the contractual term of the Notes.

At August 31, 2026, our variable and fixed rate debt had fair values that approximated their carrying values and were classified as Level 3 in the fair value hierarchy as their fair values are determined based upon one or more significant unobservable inputs.

At August 31, 2026, we were in compliance with the financial and other covenants in our financing agreements.

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Notes to Condensed Consolidated Financial Statements

August 31, 2026

(Unaudited)

(Dollars in millions, except per share amounts)

11. Other Non-current Assets

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Investment in AAR Sumisho Aviation Services (“ASAS”)

Our investments in joint ventures include a 50% ownership interest in a joint venture to provide aviation aftermarket supply chain solutions to Japanese defense and global commercial markets. Each of the partners in the ASAS joint venture have provided financial guarantees to third-parties to guarantee the payments for ASAS’s financing arrangements, including inventory purchases. No liabilities have been recognized on the outstanding guarantees. We are unable to estimate our maximum exposure under these guarantees as they are largely dependent on the volume of inventory purchase orders outstanding.

Our sales to the ASAS joint venture, including service fees earned by us on providing support to the ASAS joint venture, were $4.2 million and $5.0 million during the three-month periods ended August 31, 2026 and 2025, respectively.

Investments in Aircraft Joint Ventures

Under the terms of servicing agreements with certain of our aircraft joint ventures, we provide administrative services and technical advisory services, including aircraft evaluations, oversight and logistical support of the maintenance process and records management. We also provide evaluation and inspection services prior to the purchase of an aircraft and remarketing services with respect to the divestiture of aircraft by the joint ventures. During the three-month periods ended August 31, 2026 and 2025, we received $0.6 million and $1.1 million, respectively, for such services.

Investment in xCelle Americas, LLC (“xCelle Americas JV”)

Our investments in joint ventures include a 49.9% ownership interest in a joint venture to provide component repair services including overhaul of nacelles on next generation aircraft. In March 2025, we provided a loan to xCelle Americas JV for $3.3 million with semi-annual principal payments over the five-year term of the loan. Interest is payable semi-annually at SOFR plus 2.7%.

Our sales to the xCelle Americas JV were $0.2 million and $0.1 million during the three-month periods ended August 31, 2026 and 2025, respectively.

Investment in xCelle Asia Limited (“xCelle Asia JV”)

In December 2025, we invested $7.1 million for a 49.9% interest in the xCelle Asia JV based in Thailand. The xCelle Asia JV operations include nacelle MRO services, including on-wing and on-site inspections and rotable support for next generation aircraft nacelles.

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12. Accumulated Other Comprehensive Loss

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Changes in our accumulated other comprehensive loss (“AOCL”) by component for the three-month periods ended August 31, 2026 and 2025 were as follows:

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Notes to Condensed Consolidated Financial Statements

August 31, 2026

(Unaudited)

(Dollars in millions, except per share amounts)

13. Sale of Landing Gear Overhaul Business

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On December 19, 2024, we entered into an agreement to divest our LGO business to GA Telesis for $51 million subject to post-closing adjustments for working capital, cash, and debt. In the third quarter of fiscal 2025, the LGO assets and liabilities were reclassified to assets and liabilities held for sale and we recognized a non-cash, pre-tax impairment charge of $63.0 million to adjust the carrying value of the LGO assets to their estimated fair value. Goodwill of $14.6 million was also reclassified to assets held for sale and was included in the determination of the impairment charge.

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The LGO business was reported within our Repair, Engineering, and Software segment. The divestiture did not represent a strategic shift that will have a major effect on our operations and financial results and, therefore, did not qualify for presentation as discontinued operations.

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The sale closed in the fourth quarter of fiscal 2025 with net proceeds received of $48.0 million. We recognized $6.6 million of additional loss on the sale resulting from purchase price adjustments in the fourth quarter of fiscal 2025. We recognized a gain of $1.0 million in the first quarter of fiscal 2026 for the final resolution of the purchase price adjustments.

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14. Business Segment Information

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During the fourth quarter of fiscal 2026, we changed our operating segment structure to realign our former Integrated Solutions segment which resulted in the following changes:

Our operating segments are comprised of:

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Our previously reported segment financial information has been recast to conform to our new segment structure. The change in our operating segments had no impact on our previously reported consolidated results of operations, financial condition, or cash flows.

The accounting policies for the segments are the same as those described in Note 1 of Notes to Consolidated Financial Statements included in our Annual Report on Form 10-K for the year ended May 31, 2026. Cost of sales consists principally of the cost of products, including material used in manufacturing operations, direct labor, and overhead.

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Our Chief Operating Decision Maker (“CODM”) is our Chairman, President, and Chief Executive Officer and he evaluates performance on our operating segments using operating income as the primary profitability measure. Our operating segments are aligned principally around differences in products and services and are consistent with how our CODM allocates resources, assesses performance, and makes decisions.

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Notes to Condensed Consolidated Financial Statements

August 31, 2026

(Unaudited)

(Dollars in millions, except per share amounts)

The Company has not aggregated operating segments for purposes of identifying reportable segments. In some cases, inter-segment sales are recorded at fair value, which results in intercompany profit on inter-segment sales that is eliminated in consolidation. Corporate selling, general, and administrative expenses include centralized functions such as legal, finance, treasury and human resources with a portion of the costs allocated to our operating segments.

Exit from Legacy Commercial Programs Operations

During the fourth quarter of fiscal 2026, we announced our intention to exit our Legacy Commercial Programs business and expect the wind-down of this segment will take approximately three to four years as the Legacy Commercial Programs’ existing customer contracts are terminated or exited and its rotable assets are sold. As the wind-down occurs, the fair value of the segment will progressively decrease which will ultimately result in the full impairment of the Legacy Commercial Programs goodwill of $16.4 million in a future period or periods.

Prior to fiscal 2027, our rotable assets which were previously supporting long-term commercial programs were depreciated on a straight-line basis over their estimated useful lives. As part of the wind-down, the rotable assets are now being actively sold and not primarily supporting long-term programs. Effective June 1, 2026, we no longer recognize depreciation expense as the fair value of the rotable asset pool is in excess of its carrying value. During the three-month period ended August 31, 2025, we recognized depreciation expense of $1.7 million associated with the rotable asset pool. Sales of rotable assets were $29.0 million and $6.5 million during the three-month periods ended August 31, 2026 and 2025, respectively.

Significant expenses for each segment are as follows:

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