Washington, D.C. 20549



Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 21, 2023
Q logo.jpg
Quantum Corporation
(Exact name of registrant as specified in its charter)
(State or other jurisdiction of incorporation or organization)(Commission File No.)(I.R.S. Employer Identification No.)
224 Airport ParkwaySuite 550
San JoseCA95110
(Address of Principal Executive Offices)(Zip Code)

Registrant's telephone number, including area code
(Former name, former address and former fiscal year, if changed since last report)

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

Title of each classTrading SymbolName of each exchange on which registered
Common Stock, $0.01 par value per shareQMCONasdaq Global Market

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company

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. ☐

Item 4.01 Changes in Registrant’s Certifying Accountant.

On August 18, 2023, the Audit Committee of the Board of Directors of Quantum Corporation (the “Company”) appointed Grant Thornton LLP (“Grant Thornton”) as the Company’s independent registered public accounting firm for the fiscal year ending March 31, 2024, effective immediately. As previously disclosed in the Company’s Current Report on Form 8-K filed on July 27, 2023, Armanino LLP (“Armanino”), the Company’s predecessor auditor, informed the Company that Armanino would resign effective as of the earlier of (i) the date the Company engages a new independent registered public accounting firm or (ii) the filing of the Company’s Quarterly Report on Form 10-Q for the fiscal quarter ended December 31, 2023, as a result of Armanino’s determination to cease providing certain services to public companies. As a result, Armanino ceased to serve as the Company’s auditors effective as of August 18, 2023.

During the Company’s two most recent fiscal years ended March 31, 2022 and 2023, and the subsequent interim period through August 18, 2023, neither the Company, nor anyone on the Company’s behalf, consulted with Grant Thornton regarding either (i) the application of accounting principles to a specific transaction, either completed or proposed, or the type of audit opinion that might be rendered on the Company’s consolidated financial statements, and neither a written report nor oral advice was provided to the Company that Grant Thornton concluded was an important factor considered by the Company in reaching a decision as to any accounting, auditing or financial reporting issue or (ii) any matter that was either the subject of a disagreement (within the meaning of Item 304(a)(1)(iv) of Regulation S-K and the related instructions) or a reportable event (as described in Item 304(a)(1)(v) of Regulation S-K).

In accordance with Item 304(a)(3) of Regulation S-K, the Company provided Armanino with a copy of the disclosures it is making in this Current Report on Form 8-K and requested from Armanino a letter addressed to the Securities and Exchange Commission indicating whether it agrees with such disclosures. A copy of Armanino’s letter dated August 21, 2023 is attached as Exhibit 16.1 hereto.

Item 9.01. Financial Statements and Exhibits.

Exhibit NumberDescription
104Cover Page Interactive Data File (embedded within the Inline XBRL document).


Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Quantum Corporation
August 21, 2023/s/ Brian E. Cabrera
(Date)Brian E. Cabrera
Senior Vice President, Chief Administrative Officer, and Corporate Secretary