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QUANTUM CORP /DE/

For the period ended Dec 31, 2025. Filed Feb 17, 2026.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Dec 31, 2025 · Filed Feb 17, 2026

QMCO$16.99+17.4%Stored close · as of Nov 9, 2026

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Item 6. Exhibits

The exhibits required to be filed or furnished as part of this Quarterly Report are listed below. Notwithstanding any language to the contrary, exhibits 32.1 and 32.2 shall not be deemed to be filed as part of this Quarterly Report for purposes of Section 18 of the Exchange Act or deemed to be incorporated by reference into any filing under the Exchange Act or the Securities Act of 1933, except to the extent that the Company specifically incorporates it by reference.

Incorporated by Reference
ExhibitNumberExhibit DescriptionFormFiling DateExhibitFiled or Furnished Herewith
3.1Amended and Restated Certificate of Incorporation of the Company, as amended through August 26, 2024S-11/27/253.1
3.2Amended and Restated Bylaws, as amended through June 12, 20258-K6/18/253.1
4.1Indenture (including form of 10.00% PIK Senior Secured Convertible Note due 2028) dated December 18, 2025, by and among the Company, the guarantors party thereto and U.S. Bank Trust Company, National Association, as trustee and collateral agent8-K12/18/254.1
4.2Registration Rights Agreement dated December 18, 2025, by and between the Company and Dialectic Technology SPV LLC8-K12/18/254.2
10.1#Quantum Corporation 2023 Long-Term Incentive Plan, as amended and restated through October 20, 2025X
10.2#Amendment No. 2 to Quantum Corporation 2021 Inducement Plan, dated January 8, 2026X
31.1Certification of the Principal Executive Officer pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002X
31.2Certification of the Principal Financial Officer pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002X
32.1^Certification of Principal Executive Officer pursuant to 18 U.S.C. section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002X
32.2^Certification of Principal Financial Officer pursuant to 18 U.S.C. section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002X
101.SCHXBRL Taxonomy Extension Schema DocumentX
101.CALXBRL Taxonomy Extension Calculation Linkbase DocumentX
101.DEFXBRL Taxonomy Extension Definition Linkbase DocumentX
101.LABXBRL Taxonomy Extension Label Linkbase DocumentX
101.PREXBRL Taxonomy Extension Presentation Linkbase DocumentX
104Cover page interactive data file, submitted using inline XBRL (contained in Exhibit 101)X
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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.