Document

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

☐

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

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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.

This Amendment No. 1 on Form 10-Q/A (this “Amendment”) amends the Quarterly Report on Form 10-Q of Quantum Corporation (the “Company”) for the quarter ended June 30, 2025, originally filed with the U.S. Securities and Exchange Commission (the “SEC”) on September 11, 2025 (the “Original Filing”).

In addition, as required by Rule 12b-15 of the Securities and Exchange Act of 1934 (the “Exchange Act”), new certifications by the Company’s principal executive officer and principal financial officer are filed herewith as Exhibits 31.3 and 31.4, respectively, to this Amendment under Item 6, pursuant to Rule 13a-14(a) or 15d-14(a) of the Exchange Act. Because no financial statements have been included in this Amendment and this Amendment does not contain or amend any disclosure with respect to Items 307 and 308 of Regulation S-K, paragraphs 3, 4 and 5 of the certifications have been omitted. The Company is also not including new certifications under Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. 1350) (Section 906 of the Sarbanes-Oxley Act of 2002), as no financial statements are being filed with this Amendment.

Other than as expressly set forth herein, this Amendment does not, and does not purport to, amend, update or restate the information in the Original Filing or reflect any events that have occurred after the Original Filing was made. Information not affected by this Amendment remains unchanged and reflects the disclosures made at the time as of which the Original Filing was made. This Amendment should be read together with the Original Filing and the Company’s other filings with the SEC.

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 the Original Filing or this Amendment 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

Exhibit
Number

Exhibit Description

Form

Filing Date

Exhibit

Filed or Furnished Herewith

3.1

Amended and Restated Certificate of Incorporation of the Company, as amended through August 26, 2024

S-1

1/27/25

3.1

3.2

Amended and Restated Bylaws, as amended through June 12, 2025

8-K

6/18/25

3.1

10.1#@

Offer Letter dated April 9, 2025 by and between the Company and Lewis W. Moorehead

10-Q

9/11/25

10.1

10.2#@

Offer Letter dated April 10, 2025 by and between the Company and John A. Fichthorn

10-Q

9/11/25

10.2

10.3#

Offer Letter dated June 12, 2025 by and between the Company and Hugues Meyrath

8-K

6/18/25

10.1

10.4#

Change of Control Agreement dated June 12, 2025 by and between the Company and Hugues Meyrath

8-K

6/18/25

10.2

10.5#

Letter Agreement dated March 28, 2025 by and between the Company and Kenneth P. Gianella

8-K

4/03/25

10.1

10.6

Thirteenth Amendment to Term Loan Credit and Security Agreement dated May 5, 2025, by and among the Company, Quantum LTO Holdings, LLC, the borrowers and guarantors party thereto, the lenders party thereto, and Alter Domus (US) LLC, as disbursing agent and collateral agent.

10.7

Fourteenth Amendment to Term Loan Credit and Security Agreement dated June 12, 2025, by and among the Company, Quantum LTO Holdings, LLC, the borrowers and guarantors party thereto, the lenders party thereto, and Alter Domus (US) LLC, as disbursing agent and collateral agent.

10.8*

Agency Resignation, Appointment and Assumption Agreement dated April 21, 2025, by and among the Company, Blue Torch Finance LLC, Alter Domu s (US) LLC, the loan parties thereto , and the lenders party thereto.

31.1@

Certification of the Principal Executive Officer pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002

31.2@

Certification of the Principal Financial Officer pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002

31.3

Certification of the Principal Executive Officer pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002

31.4

Certification of the Principal Financial Officer pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002

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 2002

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 2002

101.SCH

XBRL Taxonomy Extension Schema Document

101.CAL

XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF

XBRL Taxonomy Extension Definition Linkbase Document

101.LAB

XBRL Taxonomy Extension Label Linkbase Document

101.PRE

XBRL Taxonomy Extension Presentation Linkbase Document

104

Cover page interactive data file, submitted using inline XBRL (contained in Exhibit 101)

Quantum Corporation

(Registrant)

September 23, 2025

/s/ Hugues Meyrath

(Date)

Hugues Meyrath

President and Chief Executive Officer

(Principal Executive Officer)

September 23, 2025

/s/ Laura A. Nash

(Date)

Laura A. Nash

Chief Accounting Officer

(Principal Financial Officer and Principal Accounting Officer)


Large accelerated filer	☐	Accelerated filer	☐
Non-accelerated filer	x	Smaller reporting company	x
		Emerging growth company


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


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


Quantum Corporation
(Exact name of registrant as specified in its charter)


(408)			944-4000
Registrant's telephone number, including area code


N/A
(Former name, former address and former fiscal year, if changed since last report)


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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