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

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.

As of the close of business on November 11, 2025, there were 13,721,291 shares of Quantum Corporation’s common stock issued and outstanding.

As used in this Quarterly Report on Form 10-Q, the terms "Quantum," the “Company,” "we," "us," and "our" refer to Quantum Corporation and its subsidiaries taken as a whole, unless otherwise noted or unless the context indicates otherwise.

This report contains forward-looking statements. All statements contained in this report other than statements of historical fact, including, but not limited to, statements regarding our future operating results and financial position; our business strategy, focus and plans; our market growth and trends; our products, services and expected benefits thereof; and our objectives for future operations, are forward-looking statements. The words “believe,” “may,” “will,” “estimate,” “continue,” “anticipate,” “intend,” “expect,” “could,” “would,” “project,” “plan,” “potentially,” “preliminary,” “likely,” and similar expressions are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events and trends that we believe may affect our financial condition, results of operations, business strategy, short-term and long-term business operations and objectives, and financial needs. These forward-looking statements are subject to a number of risks, uncertainties, and assumptions, including: the competitive pressures that we face; risks associated with executing our strategy; the impact of macroeconomic and geopolitical trends and events; the need to manage third-party suppliers and the distribution of our products and the delivery of our services effectively; the protection of our intellectual property assets, including intellectual property licensed from third parties; risks associated with our international operations; the development and transition of new products and services and the enhancement of existing products and services to meet customer needs; our response to emerging technological trends; the execution and performance of contracts by us and our suppliers, customers, clients and partners; the hiring and retention of key employees; risks associated with business combination and investment transactions; the execution, timing and results of any transformation or restructuring plans, including estimates and assumptions related to the cost and the anticipated benefits of the transformation and restructuring plans; the outcome of any legal proceedings, claims and disputes; the ability to meet stock exchange continued listing standards; the possibility that Nasdaq may delist our securities; risks related to our restatement and revisions to financial statements; risks related to our ability to implement and maintain effective internal control over financial reporting in the future; risks related to changes in our management; and those risks described under Part II, Item 1A. Risk Factors. Moreover, we operate in a competitive and changing environment. New risks emerge from time to time. It is not possible for our management to predict all risks, nor can we assess the effect of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements we may make. In light of these risks, uncertainties, and assumptions, the future events and trends discussed in this report may not occur and actual results could differ materially and adversely from those anticipated or implied in the forward-looking statements. Accordingly, you should not rely on forward-looking statements as predictions of future events. Although we believe that the expectations reflected in the forward-looking statements are reasonable, we cannot guarantee that the future results, performance, or events and circumstances reflected in the forward-looking statements will be achieved or occur. We undertake no obligation to update any of these forward-looking statements for any reason after the date of this report or to conform these statements to actual results or revised expectations.

Quantum Corporation, together with its consolidated subsidiaries, stores and manages digital video and other forms of unstructured data, providing streaming performance for video and rich media applications, along with low-cost, long-term storage systems for data protection and archiving. The Company helps customers around the world capture, create and share digital data and preserve and protect it for decades. The Company’s software-defined, hyperconverged storage solutions span from non-volatile memory express, to solid state drives, hard disk drives, tape and the cloud and are tied together leveraging a single namespace view of the entire data environment. The Company works closely with a broad network of distributors, value-added resellers, direct marketing resellers, original equipment manufacturers and other suppliers to meet customers’ evolving needs.

The accompanying unaudited condensed consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information. All intercompany balances and transactions have been eliminated. Certain information and footnote disclosures normally included in annual financial statements have been condensed or omitted. The Company believes the disclosures made are adequate to prevent the information presented from being misleading. However, the accompanying unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included within the Company’s Annual Report on Form 10-K for the fiscal year ended March 31, 2025 (the “Annual Report”).

The unaudited condensed consolidated interim financial statements reflect all adjustments, consisting only of normal and recurring items, necessary to present fairly our financial position as of September 30, 2025, the results of operations and comprehensive loss, statements of cash flows, and changes in stockholders’ deficit for the three and six months ended September 30, 2025 and 2024. Interim results are not necessarily indicative of full year performance because of short-term variations.

These condensed consolidated financial statements have been prepared in accordance with GAAP assuming the Company will continue as a going concern. The going concern assumption contemplates the realization of assets and satisfaction of liabilities in the normal course of business. However, substantial doubt about the Company’s ability to continue as a going concern exists.

The Company is required to repay the Term Loan (as defined herein) on August 5, 2026. At the present time, the Company does not have sufficient cash to be able to make this repayment nor does the Company expect to generate sufficient cash through operating activities to make this repayment by August 5, 2026. On September 23, 2025, the Company entered into a transaction agreement with Dialectic (as further discussed herein) which laid out the terms to exchange Dialectic’s portion of the Term Loan for one or more convertible notes with a three year maturity. The issuance of the convertible note(s) is subject to stockholder approval. In the same agreement, the Company also agreed to use the proceeds from the Standby Equity Purchase Agreement (“SEPA”) to repay OC III Lenders for its portion of the Term Loan. However, there is no assurance that the issuance of the Convertible Note will be approved nor that we will be able to raise sufficient cash proceeds from the SEPA to repay the Term Loan. See Note 4: Debt for further information on our credit agreements.

The condensed consolidated financial statements do not include any adjustments to the carrying amounts and classification of assets, liabilities, and reported expenses that may be necessary if the Company were unable to continue as a going concern. All credit facilities are collateralized by a pledge of the Company’s assets.

In connection with the preparation of the Company’s Quarterly Report on Form 10-Q for the three and six months ended September 30, 2025, the Company identified that certain previously disclosed errors—which resulted in a restatement of the financial statements for the three and nine months ended December 31, 2024, as filed in the Annual Report also affected the financial statements for the three and six months ended September 30, 2024.

The impact of these errors on the three and six months ended September 30, 2024 was evaluated in accordance with SEC Staff Accounting Bulletins No. 99 and 108 and was determined to be immaterial to the previously issued financial statements. Accordingly, the Company has revised, rather than restated, the comparative financial information for September 30, 2024 presented in this Quarterly Report on Form 10-Q.

•Service contract term – The Company identified inconsistencies in the contract term used to recognize service and subscription revenue under ASC 606. Revenue is required to be deferred and recognized ratably over the contractual term of the arrangement. Management reviewed and updated the revenue recognition periods to ensure consistent application for all relevant contracts invoiced during the fiscal year ended March 31, 2025. These adjustments have been reflected in the revenue calculations presented herein. See Note 12: Revision of Previously Issued Financial Statements for more information.

•Application of ASC 606 related to standalone selling price (“SSP”) – The Company determined that the standalone selling prices used during the fiscal year ended March 31, 2025 had not been appropriately updated. Accordingly, prior to March 31, 2025, the Company refreshed the SSPs for all performance obligations in bundled contracts, maximizing the use of observable inputs. This adjustment resulted in changes to the allocation of transaction price and corresponding revenue recognition.

For further discussion of the restatement of the financial statements for the three and nine months ended December 31, 2024, refer to the Annual Report.

Certain prior-period amounts in the condensed consolidated statements of cash flows have been reclassified to conform to the current period presentation. These reclassifications had no effect on total cash flows.

Reverse Stock Split

On August 15, 2024, the Company’s stockholders approved an amendment to the Company’s Amended and Restated Certificate of Incorporation to effect a reverse stock split of the issued shares of the Company’s common stock, par value $0.01 per share (the “Common Stock”), at a ratio ranging from 1 share-for-5 shares up to a ratio of 1-for-20 shares, with the exact ratio, if any, to be selected by the board of directors (the “Board”). On August 15, 2024, the Board approved a 1-for-20 reverse stock split (the “Reverse Stock Split”) of the Common Stock. The Reverse Stock Split became effective as of August 26, 2024 at 4:01 p.m., Eastern Time (the “Effective Time”). At the Effective Time, every twenty issued shares of Common Stock were automatically reclassified into one issued share of Common Stock, with any fractional shares resulting from the Reverse Stock Split rounded up to the nearest whole share. The number of outstanding shares of Common Stock was reduced from approximately 95.9 million shares to approximately 4.8 million shares.

All share and per share amounts for Common Stock in these condensed consolidated financial statements and notes thereto have been retroactively adjusted for all periods presented to give effect to the Reverse Stock Split.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported and disclosed in the financial statements and accompanying notes. Actual results could differ from these estimates and assumptions due to risks and uncertainties. Such estimates include, but are not limited to, the determination of standalone selling price for revenue arrangements with multiple performance obligations, inventory adjustments, useful lives of intangible assets and property and equipment, stock-based compensation, fair value of warrants, and provision for income taxes including related reserves. Management bases its estimates on historical experience and on various other assumptions which management believes to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities.

Restricted cash is comprised of bank guarantees and similar required minimum balances that serve as cash collateral in connection with various items including insurance requirements, value added taxes, ongoing tax audits and leases in certain countries.

In December 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which required greater disaggregation of tax information in rate reconciliation and income taxes paid by jurisdiction. ASU 2023-09 was adopted beginning April 1, 2025, with no material impact.

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, which requires additional disclosures of specific expense categories included within each expense caption presented on the Statements of Operations. The new standard can be applied on either a fully retrospective or prospective basis ASU 2024-03 will be effective for our fiscal year beginning April 1, 2027, and interim periods within our fiscal year beginning April 1, 2028, with early adoption permitted. The Company is currently evaluating the impact of this new standard on its financial statement disclosures.

In July 2025, the FASB issued ASU 2025-05, "Financial Instruments—Credit Losses (Topic 326): Measurements of Credit Losses for Accounts Receivable and Contract Assets" ("ASU 2025-05"). The amendments in this update provide a practical expedient related to the estimation of expected credit losses for current accounts receivable and current contract assets that arise from transactions accounted for under FASB Accounting Standards Codification 606. Under ASU 2025-05, an entity is required to disclose whether it has elected to use the practical expedient. An entity that makes the accounting policy election is required to disclose the date through which subsequent cash collections are evaluated. ASU 2025-05 is effective for the Company beginning in the fiscal year beginning April 1, 2026, with early adoption permitted. The Company is currently evaluating the impact of this new standard on its financial statement disclosures.

In September 2025, the FASB issued ASU 2025-06, “Targeted Improvements to the Accounting for Internal-Use Software” (Topic 350). ASU 2025-06 eliminates references to software development project stages and revises the criteria that must be met to begin capitalizing internal-use software costs. The standard permits entities to adopt the guidance using a prospective, retrospective, or modified transition approach and becomes effective for us beginning January 1, 2028, with early adoption permitted. The Company is currently assessing the potential impact that ASU 2025-06 will have on its financial statements disclosures.

The following table presents the Company’s receivables and contract liabilities and certain information related to this balance as of September 30, 2025, March 31, 2025 and March 31, 2024 (in thousands): 

Total remaining performance obligations (“RPO”) representing contracted but not recognized revenue was $130.3 million as of September 30, 2025. RPO consists of both deferred revenue and uninvoiced, non-cancelable contracts that are expected to be invoiced and recognized as revenue in future periods and excludes variable consideration related to sales-based royalties.

RPO consisted of the following (in thousands):

Certain significant amounts included in the Company's condensed consolidated balance sheets consist of the following (in thousands):

Intangible assets amortization expense was $0.1 million and $0.5 million, and $0.3 million and $0.9 million for the three and six months ended September 30, 2025 and 2024, respectively. The Company recorded amortization of developed technology in cost of product revenue, and customer lists in sales and marketing expenses in the condensed consolidated statements of operations.

As of September 30, 2025 and March 31, 2025, goodwill was approximately $13.0 million. There were no impairments to goodwill as of September 30, 2025 and March 31, 2025.

The Company’s debt consisted of the following (in thousands):

(1) The unamortized debt issuance costs related to the Term Loan are presented as a reduction of the carrying amount of the corresponding debt balance on the accompanying condensed consolidated balance sheets. Unamortized debt issuance costs related to the PNC Credit Facility are presented within other assets on the accompanying condensed consolidated balance sheets.

On August 5, 2021, the Company entered into a Term Loan Credit and Security Agreement (the “Term Loan Credit Agreement”), pursuant to which a senior secured term loan was issued (the “2021 Term Loan”), maturing on August 5, 2026. The Company also entered into an Amended and Restated Revolving Credit and Security Agreement on December 27, 2018 (the “PNC Credit Facility” and, together with the Term Loan Credit Agreement, the “Credit Agreements”), which, per its terms, was maturing on August 5, 2026 and provided for borrowings up to a maximum principal amount of the lesser of: (a) $40.0 million or (b) the amount of the borrowing base, as defined in the PNC Credit Facility agreement.

On June 1, 2023, the Company entered into amendments to the Credit Agreements (the “June 2023 Amendment”) which, among other things, provided an advance of $15.0 million in additional term loan borrowings (the “2023 Term Loan” and, together with the 2021 Term Loan, the "Term Loan") and incurred $0.9 million in original issuance discount and origination fees which have been recorded as a reduction to the carrying amount of the 2023 Term Loan and amortized to interest expense over the term of the loan. The terms of the 2023 Term Loan are substantially similar to the terms of the 2021 Term Loan, including in relation to maturity and security, except that, among other things, (a) the Applicable Margin (i) for any 2023 Term Loan designated an “ABR Loan” is 9.00% per annum and (ii) for any 2023 Term Loan designated as a “SOFR Loan” is 10.00% per annum, (b) accrued interest on the 2023 Term Loan is payable in kind ("PIK"), and is capitalized and added to the principal amount of the 2023 Term Loan at the end of each interest period applicable thereto, (c) the 2023 Term Loan does not amortize prior to the maturity date thereof, and (d) the 2023 Term Loan may not be prepaid prior to the payment in full of the existing term loans. In connection with the 2023 Term Loan, the Company issued warrants to purchase an aggregate of 0.06 million shares (the “June 2023 Warrants”) of the Common Stock, at an exercise price of $20.00 per share.

On July 11, 2024, the Company entered into amendments to the Credit Agreements (the “July 2024 Amendments”) which, among other things, delayed the testing of the Company’s June 30, 2024 net leverage ratio financial covenant until July 31, 2024. In connection with the amendments, the Company issued the Term Loan lenders warrants to purchase an aggregate of 50,000 shares of the Common Stock at a purchase price of $8.20 (the “July 2024 Warrants”).

The July 2024 Amendments to the 2021 Term Loan were accounted for as a modification. The fair value of the July 2024 Warrants of $0.4 million is reflected as a reduction to the carrying amount of the 2021 Term Loan and amortized to interest expense over the remaining term of the loan. The July 2024 Amendments to the PNC Credit Facility were accounted for as a modification and the $0.1 million in related fees and expenses were recorded to other assets and are amortized to interest expense over the remaining term of the agreement.

On August 13, 2024, the Company entered into amendments to the Credit Agreements (the “August 2024 Amendments”) which, among other things, (i) waived compliance with the June 30, 2024 net leverage ratio financial covenant; (ii) waived any non-compliance with the minimum liquidity financial covenant through the date of the amendments; (iii) removed the fixed charges coverage ratio financial covenant until the fiscal quarter ended September 30, 2025; (iv) waived the testing requirement for the net leverage ratio financial covenant for the fiscal quarter ended September 30, 2024; (v) replaced the net leverage ratio financial covenant with a minimum EBITDA financial covenant for the fiscal quarters ended December 31, 2024 and March 31, 2025; (vi) reset the net leverage ratio financial covenant requirements for the fiscal quarters ended June 30, 2025 and September 30, 2025; (vii) reduced the minimum liquidity covenant to $10 million through September 30, 2025; (viii) adjusted the applicable interest rates on the Term Loan and PNC Credit Facility; (ix) removed required 2021 Term Loan principal amortization until the fiscal quarter ended September 30, 2025; and (x) repriced certain lender warrants.

In connection with the August 2024 Amendments, the Company received a new senior secured delayed draw term loan facility with a borrowing capacity of up to $26.3 million ($25.0 million after original issuance discount) and a commitment period expiring on October 31, 2024 (each draw, an “August 2024 Term Loan”). The Company borrowed $10.5 million at closing (“Initial August 2024 Term Loan”). Borrowings under the August 2024 Term Loan have an August 5, 2026 maturity date, which aligns with the 2021 Term Loan. The principal is payable quarterly beginning September 30, 2025, at a rate per annum equal to 5% of the original principal balance. The August 2024 Term Loan’s interest rate margin is (a) until March 31, 2025 (i) for any August 2024 Term Loan designated as a ‘SOFR Loan’, 12.00% per annum and (ii) for any August 2024 Term Loan designated an ‘ABR Loan’, 11.00% per annum, in each case, with 6.00% of such interest rate margin paid-in-kind, and (b) from April 1, 2025, (i) for any August 2024 Term Loan designated as a ‘SOFR Loan’, 14.00% per annum and (ii) for any August 2024 Term Loan designated an ‘ABR Loan’, 13.00% per annum, in each case, with 8.00% of such interest rate margin paid-in-kind. The August 2024 Term Loan also includes a multiple on invested capital payable to the August 2024 Term Loan lenders. Subsequently, the Company borrowed the remaining $15.8 million of the August 2024 Term Loan’s borrowing capacity before September 30, 2024.

Subsequent to the August 2024 Amendments, the 2021 Term Loan amortizes at 5.00% per annum commencing on September 30, 2025. Subsequent to the August 2024 Amendments and (A) until March 31, 2025, loans under the 2021 Term Loan designated as (x) ABR Loans bear interest at a rate per annum equal to the “ABR Rate” (calculated as the greatest of (i) 1.75%; (ii) the Federal funds rate plus 0.50%; (iii) a secured overnight financing rate based rate (the “SOFR Rate”) based upon an interest period of one month plus 1.0%; and (iv) the “Prime Rate” last quoted by the Wall Street Journal), plus an applicable margin of 8.75%, and (y) SOFR Rate Loans bear interest at a rate per annum equal to the SOFR Rate plus an applicable margin of 9.75%, in each case, with 3.75% of such interest rate margin paid-in-kind, with two specified step-downs in such applicable margin upon the receipt by the Company of cash proceeds from certain specified capital raises, and (B) from and after April 1, 2025, loans under the 2021 Term Loan designated as (x) ABR Loans bear interest at a rate per annum equal to the ABR Rate, plus an applicable margin of 8.75%, and (y) SOFR Rate Loans bear interest at a rate per annum equal to the SOFR Rate plus an applicable margin of 9.75%, in each case, with 3.75% of such applicable margin paid-in-kind, with a step-up of 1.00% per annum (which shall be paid-in-kind) if the Company’s total net leverage ratio is greater than 4.00x, and a step-down of 1.00% per annum if the Company’s total net leverage ratio is less than 3.50x (which shall reduce the paid-in-kind component of the applicable margin). The SOFR Rate is subject to a floor of 2.00%. The Company can designate a loan as an ABR Rate Loan or SOFR Rate Loan in its discretion.

Subsequent to the August 2024 Amendments, PNC Credit Facility loans designated as (x) PNC SOFR Loans bear interest at a rate per annum equal to a SOFR based rate, plus an applicable margin of 4.75% and (y) PNC Domestic Rate Loans and Swing Loans bear interest at a rate per annum equal to the greatest of (i) the base commercial lending rate of PNC Bank; (ii) the Overnight Bank Funding Rate plus 0.5%; and (iii) the daily SOFR rate plus 1.0%, plus an applicable margin of 3.75%. The Company can designate a loan as a PNC SOFR Loan or PNC Domestic Rate Loan in its discretion.

In connection with the August 2024 Amendments, the Company issued warrants to purchase an aggregate of 380,310 shares of the Common Stock, at an exercise price of $6.20 per share (the “August 2024 Warrants”) and which had a fair value of $2.0 million.

The August 2024 Amendments to the 2021 Term Loan held by one lender was accounted for as a modification. The $1.2 million fair value of the August 2024 Warrants issued to this lender and the $0.5 million of PIK fees paid to this lender are reflected as a reduction to the carrying amount of their Term Loan and their initial delayed draw term loan and amortized to interest expense over the remaining term of the loan. The August 2024 Amendments to the 2021 Term Loan held by another lender was accounted for as a debt extinguishment. The Company recorded a loss on debt extinguishment of $3.0 million related to the write-off of a portion of unamortized debt issuance costs and fees and expenses incurred with the August 2024 Amendments.

On April 2, 2025, the Company consented to an assignment (the “Master Assignment Agreement”) of the 2021 Term Loan and 2024 Term Loans. One of the lenders sold and assigned all of its interests to Dialectic. The Master Assignment Agreement was accounted for as a debt extinguishment. The Company recorded a gain on debt extinguishment of $2.4 million related to the net of discount on issuance of term loans to a new lender and write-off of all unamortized debt issuance costs and fees related to the previous lender. The $0.4 million in new lender fees were recorded as a reduction to the carrying amounts of the term loans and amortized to interest expense over the remaining term of the loan.

On May 5, 2025, the Company entered into an amendment (the “May 2025 Term Loan Amendment”) to the Term Loan. The May 2025 Term Loan Amendment, among other things, revised the prepayment requirements under the Credit Agreement in connection with the net cash proceeds received from the SEPA. The May 2025 Term Loan Amendment was accounted for as a modification and the $0.1 million in lender amendment fees were recorded as a reduction to the carrying amounts of the term loans and amortized to interest expense over the remaining term of the loan.

On August 13, 2025, the Company terminated its PNC Credit Facility. As of the date of termination, there were no amounts outstanding under the facility. In connection with the termination, the Company paid an exit fee of $1.2 million, which was recorded within Loss on Debt Extinguishment on the condensed consolidated statement of operations and comprehensive loss.

On August 13, 2025, the Company obtained waivers to certain covenants including the net leverage covenant under the Term Loan Credit Agreement for the quarter ended June 30, 2025. Additionally, the requirement to use certain proceeds of the SEPA to pay down the Term Loan was waived.

On September 23, 2025, the Company entered into a Transaction Agreement (the “Transaction Agreement”) with the lenders under its Credit Agreement. Pursuant to this agreement, the Company agreed will issue to Dialectic Technology SPV LLC (“Dialectic”), on a dollar-for-dollar basis, one or more senior secured convertible notes (the “Convertible Note”) in exchange for the amounts then outstanding under the term loans held by Dialectic (the “Debt Exchange”). The closing of the Debt Exchange is subject to customary conditions, including approval by the Company’s stockholders. As of September 30, 2025, such approval has not been obtained, and the Debt Exchange had not occurred. As of September 30, 2025, total Term Loans outstanding to Dialectic was $52.6 million.

On September 23, 2025, the Company also entered into the Fifteenth Amendment to the Term Loan Credit Agreement (the “Fifteenth Amendment”). The Fifteenth Amendment, among other things, (i) permits the Company to retain up to $15.0 million of net cash proceeds from the SEPA received on or after the date of the Fifteenth Amendment for working capital and general corporate purposes, (ii) converts certain tranches of term loans held by the OC III Lenders into new and separate tranches, (iii) defers payment of cash interest on term loans held by Dialectic accruing during the quarters ending September 30, 2025 and December 31, 2025, until the earliest of (a) the date the Company elects to pay such deferred cash interest, (b) the maturity of such term loans, or (c) the date the Debt Exchange occurs, at which point such deferred interest will be subject to the terms of the Convertible Note indenture, and increases the interest rate applicable to such term loans by 2.00% during the period that such cash interest is being deferred, (iv) eliminates the existing maximum total net leverage ratio covenant and minimum daily liquidity covenant (noting that, following the Debt Exchange, the Convertible Notes will be subject to a minimum liquidity covenant), and (v) amends certain other provisions, including mandatory prepayment events, payment of fees and expenses, and reporting requirements.

In connection with the Fifteenth Amendment, the Company issued warrants to Dialectic to purchase up to 2,653,308 shares of Common Stock, representing 19.9% of the Company’s outstanding shares as of the Transaction Agreement date (the “Forbearance Warrant”) as consideration for the forbearance, waivers, and amendments granted under the Fifteenth Amendment.

The Fifteenth Amendment to the Term Loans held by Dialectic was accounted for as an extinguishment under ASC 470-50, resulting in the recognition of a new debt instrument, the derecognition of the original term loans, and a loss on extinguishment of $33.3 and $30.7 million, which is included in loss on debt extinguishment for the three and six months ended September 30, 2025. The fair value of the Forbearance Warrant was treated as a lender fee and included in the extinguishment loss calculation. The Fifteenth Amendment to the Term Loans held by OC III Lenders was accounted for as a modification.

The Term Loan and Forbearance Warrant with Dialectic constitute related party transactions, as John Fichthorn, a member of the Company's Board of Directors, is also Managing Partner of Dialectic Capital Management, the investment advisor to Dialectic. The principal on the Term Loan totaled $52.6 million as of September 30, 2025,and is payable at maturity. The Forbearance Warrant allows Dialectic to purchase up to 2,653,308 shares, with a fair value of $23.9 million as of that date.

The Forbearance Warrant, issued on September 23, 2025, has an exercise price of $8.81 per share, representing 80% of the seven-day volume-weighted average price as of September 22, 2025, and is exercisable until the seventh anniversary of its issuance. It includes a put right that allows the holder to require the Company to repurchase the unexercised portion for cash after the fifth anniversary, or earlier upon a change of control or liquidation. The repurchase price equals the holder’s pro rata share of the original issue value of $20 million, adjusted for any exercised portion.

The Forbearance Warrant is classified as a liability under ASC 480, as it may require cash settlement and meets the definition of a derivative. It is initially measured at fair value, with subsequent changes recognized in the condensed consolidated statement of operations under “Change in fair value of warrant liabilities.” See Note 5: Fair Value of Financial Instruments for more information.

On January 25, 2025, the Company entered into the SEPA, in which pursuant to and subject to its terms, the Company has the right, but not the obligation, to sell up to $200 million of Common Stock at any time during the three-year period following the date of the SEPA.

As of September 30, 2025, the Company has issued approximately 7.5 million shares of Common Stock under the SEPA for net proceeds of approximately $82.8 million, of which 6.3 million shares of Common Stock for net proceeds of approximately $66.3 million were issued in the six months ended September 30, 2025. No shares were issued in the three months ended September 30, 2025.

The Company’s assets measured and recorded at fair value on a recurring basis may consist of money market funds, which are included in cash and cash equivalents in the condensed consolidated balance sheets. These instruments are valued using quoted market prices in active markets (Level 1 fair value measurements) at the respective balance sheet dates.

No impairment charges were recognized for non-financial assets for the three and six months ended September 30, 2025 and 2024. The Company has no non-financial liabilities measured and recorded at fair value on a non-recurring basis.

The Company’s financial liabilities were comprised primarily of long-term debt as of September 30, 2025. The carrying amounts of the Company’s debt instruments are recorded at amortized cost. The fair value of the Company’s long-term debt is disclosed for informational purposes only and is not recognized in the condensed consolidated balance sheets.

The fair value of the Company’s debt was estimated using a discounted cash flow approach based on the Company’s current borrowing rates for similar types of debt instruments, adjusted for credit and nonperformance risk.

The Company uses significant other observable market data and assumptions (Level 2 inputs, as defined in ASC 820, Fair Value Measurement) that it believes market participants would use in pricing such debt.

The carrying value and estimated fair value of the Company’s long-term debt were as follows (in thousands):

On September 23, 2025, the Company established the initial fair value for the Forbearance Warrant issued to Dialectic in connection with the Fifteenth Amendment. The fair value was subsequently remeasured as of September 30, 2025, and the resulting change in fair value was recognized in the condensed consolidated statement of operations under “Change in fair value of warrant liabilities.”

The Forbearance Warrant was valued using a Monte Carlo simulation model in conjunction with a Probability-Weighted Expected Return Model (“PWERM”). This model incorporates various assumptions, including the Company’s Common Stock price, expected volatility, risk-free interest rate, and the remaining contractual term of the warrant.

Because the valuation relies on significant unobservable inputs, the fair value of the Forbearance Warrant is classified as Level 3 within the fair value hierarchy.

The following table summarizes the key assumptions used in estimating the fair value of the Forbearance Warrant at issuance and at September 30, 2025:

(1) Scenario probability as of issuance was based on timing expectations of management that a liquidation event occurring was estimated at 35%; a fundamental transaction occurring was estimated at 15%; and none of the previous events was estimated at 50%.

The table below sets forth a summary of changes in the fair value of the Company’s warrant liabilities for the period ended September 30, 2025:

Supplemental balance sheet information related to leases is as follows (in thousands):

Components of lease cost were as follows (in thousands):

Operating cash outflows related to operating leases each totaled $1.1 million and $1.4 million for the six months ended September 30, 2025 and 2024, respectively.

During the quarters ended September 30, 2025 and 2024, the Company had certain approved restructuring plans to improve operational efficiencies and rationalize its cost structure. During the quarter ended September 30, 2025, the Company recognized $3.2 million of restructuring charges primarily related to employee severance and other termination benefits. These charges are presented within restructuring charges in the Condensed Consolidated Statements of Operations. The Company expects to recognize additional restructuring charges in future periods, primarily related to severance and termination benefits, and is expected to be substantially complete by the end of the fourth quarter of fiscal year 2026, which is subject to change.

The following tables present the activity and the estimated timing of future payouts for accrued restructuring included in other current liabilities in the condensed consolidated balance sheets (in thousands):

During the three and six months ended September 30, 2025, the Company recognized approximately $0.2 million and $0.3 million in forfeitures of unvested restricted stock units (“RSUs”) in connection with workforce reductions and employee departures.

The Company has performance share units, restricted stock units and options to purchase shares under its Employee Stock Purchase Plan, as amended and restated on July 25, 2023 (“ESPP”), granted under various stock incentive plans that, upon exercise and vesting, would increase shares outstanding. The Company has also issued a warrant to purchase shares of Common Stock.

The dilutive impact related to shares of Common Stock from incentive plans and the outstanding warrant is determined by applying the treasury stock method to the assumed vesting of outstanding performance share units and restricted stock units and the exercise of outstanding options and warrants. The dilutive impact related to shares of Common Stock from contingently issuable performance share units is determined by applying a two-step approach using both the contingently issuable share guidance and the treasury stock method. In periods of a net loss, all potentially dilutive weighted-average outstanding shares of Common Stock equivalents were excluded from the computation of diluted net income (loss) per share attributable to common stockholders for the periods presented because including them would have been anti-dilutive.

The following weighted-average outstanding shares of Common Stock equivalents were excluded from the computation of diluted net loss per share attributable to common stockholders for the periods presented because including them would have been anti-dilutive (in thousands):

The Company had outstanding market based restricted stock units as of September 30, 2025 that were eligible to vest into shares of the Common Stock subject to the achievement of certain stock price targets in addition to a time-based vesting period. These contingently issuable shares are excluded from the computation of diluted earnings per share if, based on current period results, the shares would not be issuable if the end of the reporting period were the end of the contingency period. There were 34,201 shares of contingently issuable market-based restricted stock units that were excluded from the table above as the market conditions were not satisfied as of September 30, 2025.

The effective tax rate for the three months and six months ended September 30, 2025 and 2024 was (0.4)% and (0.6)%, as compared to (2.3)% and (1.6)% respectively. The effective tax rates differed from the federal statutory tax rate of 21% during each of these periods due primarily to unbenefited losses experienced in jurisdictions with valuation allowances on deferred tax assets as well as the forecasted mix of earnings in domestic and international jurisdictions.

As of September 30, 2025, including interest and penalties, the Company had $83.6 million of unrecognized tax benefits, $74.4 million of which, if recognized, would favorably affect the effective tax rate without consideration of the valuation allowance. As of September 30, 2025, the Company had accrued interest and penalties related to these unrecognized tax benefits of $1.3 million. The Company recognizes interest and penalties related to income tax matters in the income tax provision in the condensed consolidated statements of operations. As of September 30, 2025, $76.0 million of unrecognized tax benefits were recorded as a contra deferred tax asset in other long-term assets in the condensed consolidated balance sheets and $7.6 million (including interest and penalties) were recorded in other long-term liabilities in the condensed consolidated balance sheets. During the next 12 months, it is reasonably possible that approximately $5.3 million of tax benefits, inclusive of interest and penalties, that are currently unrecognized could be recognized as a result of the expiration of applicable statutes of limitations. Upon recognition of the tax benefit related to the expiring statutes of limitation, $5.2 million will be offset by the establishment of a related valuation allowance. The net tax benefit recognized in the statements of operation is estimated to be $0.1 million.

On July 4, 2025, President Trump signed into law the legislation commonly referred to as the One Big Beautiful Bill Act (“OBBBA”). The OBBBA includes various provisions, such as the permanent extension of certain expiring provisions of the Tax Cuts and Jobs Act, modifications to the international tax framework and the restoration of favorable tax treatment for certain business provisions. The OBBBA has multiple effective dates, with certain provisions effective in 2025 and others being implemented through 2027. While there is no material impact to the Company's condensed consolidated financial statements for the quarter ended September 30, 2025, the Company is assessing its impact on the consolidated financial statements that would take effect beginning in the period in which the OBBBA was signed into law.

The Company uses contract manufacturers for its manufacturing operations. Under these arrangements, the contract manufacturer procures inventory to manufacture products based upon the Company’s forecast of customer demand. The Company has similar arrangements with certain other suppliers. The Company is responsible for the financial impact on the supplier or contract manufacturer of any reduction or product mix shift in the forecast relative to materials that the third party had already purchased under a prior forecast. Such a variance in forecasted demand could require a cash payment for inventory in excess of current customer demand or for costs of excess or obsolete inventory. As of September 30, 2025, the Company had issued non-cancelable commitments for $45.0 million to purchase inventory from its contract manufacturers and suppliers.

On September 4, 2025, a shareholder class action complaint was filed in the United States District Court for the District of Colorado. The complaint identifies Seung Lee as the plaintiff and names Quantum Corporation and James J. Lerner, Kenneth P. Gianella, and Laura Nash as defendants. It alleges certain violations of Sections 10(b) and 20(a) of the Securities Exchange Act of 1934 and SEC Rule 10b-5 related to certain disclosures made in the Company’s quarterly and annual reports regarding its financial reporting for the third quarter of the Company’s fiscal year 2025 and its restatement of that financial reporting. The complaint seeks to designate the plaintiff as the lead plaintiff for the class and define a class period of November 15, 2024 through August 18, 2025, and seeks an award of unspecified damages, costs, and expenses. At this time, Quantum is not able to determine whether this lawsuit would have any material impact on our business, operating results, or financial condition.

On October 28, 2025, a shareholder derivative complaint was filed in the United States District Court for the District of Colorado. The complaint was filed by Brent Cullison derivatively on behalf of Quantum Corporation against James J. Lerner, Kenneth P. Gianella, Laura Nash, Don Jaworski, John Fichthorn, Hugues Meyrath, John R. Tracy, Emily White, James C. Clancy, and Tony J. Blevins. The complaint substantially repeats the allegations of the shareholder litigation described above and alleges related breaches of fiduciary duties and other causes of action. The complaint seeks recovery of damages sustained by Quantum arising from the allegations, as well as fees and costs incurred.

Another shareholder derivative complaint was filed in the same court on November 4, 2025. That complaint names Felicia Marti on behalf of Quantum Corporation as the plaintiff, with James J. Lerner, Kenneth P. Gianella, Laura Nash, John Fichthorn, Donald J. Jaworski, Hugues Meyrath, John R. Tracy, and Emily White named as defendants. The complaint substantially repeats the allegations of the Cullison derivative litigation and seeks relief of recovery of damages sustained by Quantum arising from the allegations, certain corporate governance reforms, and fees and costs incurred.

At this time, Quantum is not able to determine whether the derivative lawsuits would have any material impact on our business, operating results, or financial condition.

Additionally, from time to time, the Company is party to various legal proceedings and claims arising from the normal course of business activities. Based on current available information, the Company does not expect that the ultimate outcome of any currently pending matters, individually or in the aggregate, will have a material adverse effect on the Company’s results of operations, cash flows or financial position.

Our chief operating decision maker (“CODM”), the Chief Executive Officer, manages business activities as a single operating and reportable segment at the consolidated level. The CODM reviews and utilizes consolidated financial information, including revenue, gross profit, operating loss and net loss as reported on the condensed consolidated statements of operations, to assess performance and allocate resources to support strategic priorities. Condensed consolidated net loss is our segment’s primary measure of profit or loss. The measure of segment assets is reported on the condensed consolidated balance sheets as total consolidated assets.

Our CODM reviews the following significant segment expenses, which are each separately disclosed and presented in the condensed consolidated statements of operations: cost of revenue for product, cost of revenue for subscription services, research and development expenses, sales and marketing expenses, and general and administrative expenses. Other segment items within condensed consolidated net loss include restructuring and impairment expenses, other income (expense), net and income tax provision. Other significant noncash segment expenses include stock-based compensation, depreciation and amortization and fair value adjustments on warrant liabilities.

The following table depicts the disaggregation of revenue by geographic areas and major product offerings and geographies and is consistent with how the CODM evaluates its financial performance (in thousands):

1 Revenue for the Americas geographic region outside of the United States is not significant.

2 Royalty revenue is not allocatable to geographic regions.

1 Subscription revenue of $6.4 million and $5.0 million was allocated to primary and secondary storage systems for the three months ended September 30, 2025 and 2024, respectively. Subscription revenue of $2.9 million and $4.1 million was allocated to primary and secondary storage systems for the six months ended September 30, 2025 and 2024, respectively.

The following table shows reported segment revenue, segment profit or loss, and significant segment expenses were as follows: (in thousands):