Quantum Corp Files Proxy Materials

Ticker: QMCO · Form: DEFA14A · Filed: Dec 2, 2025 · CIK: 709283

Quantum Corp /De/ DEFA14A Filing Summary
FieldDetail
CompanyQuantum Corp /De/ (QMCO)
Form TypeDEFA14A
Filed DateDec 2, 2025
Risk Levellow
Pages1
Reading Time1 min
Sentimentneutral

Sentiment: neutral

Topics: proxy-filing, sec-filing, corporate-governance

TL;DR

Quantum Corp filed proxy docs, no fee needed. Standard stuff.

AI Summary

Quantum Corporation filed a Definitive Additional Materials (DEFA14A) on December 2, 2025, related to proxy materials. The filing indicates no fee was required for this submission. The company, headquartered in San Jose, CA, is involved in computer storage devices.

Why It Matters

This filing is a routine proxy statement update, indicating the company is proceeding with shareholder communications and corporate governance processes.

Risk Assessment

Risk Level: low — This is a standard regulatory filing for proxy materials and does not contain new financial information or strategic changes.

Key Players & Entities

  • Quantum Corp (company) — Registrant
  • 224 AIRPORT PARKWAY SUITE 550, SAN JOSE, CA 95110 (company) — Business and Mail Address
  • 0000709283-25-000087 (other) — Accession Number
  • 20251202 (date) — Filing Date

FAQ

What type of filing is this DEFA14A for Quantum Corporation?

This filing is classified as Definitive Additional Materials, indicated by the checkbox 'Definitive Additional Materials' being selected.

When was this filing submitted to the SEC?

The filing was submitted on December 2, 2025.

Is there a filing fee associated with this document?

No, the checkbox 'No fee required' is selected, indicating no filing fee was necessary.

What is Quantum Corporation's primary business according to the filing?

Quantum Corporation is categorized under the Standard Industrial Classification code 3572, which corresponds to Computer Storage Devices.

Where is Quantum Corporation's principal executive office located?

Quantum Corporation's business and mail address is listed as 224 AIRPORT PARKWAY, SUITE 550, SAN JOSE, CA 95110.

Filing Stats: 357 words · 1 min read · ~1 pages · Grade level 11.3 · Accepted 2025-12-02 16:24:57

Filing Documents

From the Filing

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.) Filed by the Registrant Filed by a party other than the Registrant Check the appropriate box Preliminary Proxy Statement Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) Definitive Proxy Statement Definitive Additional Materials Soliciting Material Pursuant to Section 240.14a-12 Quantum Corporation (Name of Registrant as Specified in its Charter) ____________________________________________________________________________ (Name of Person(s) Filing Proxy Statement, if other than the Registrant) Payment of Filing Fee (Check all boxes that apply) No fee required. Fee paid previously with preliminary materials. Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11. 1 Social media posts first used on or after December 2, 2025 Voting your Quantum shares is quick and easy. Please submit your vote before the Dec 15 deadline (1159 PM ET) ahead of the Dec 16 Annual Meeting. Vote now link to 2025 Annual Meeting landing page #QuantumCorp #ShareholderVote #QMCO Don't forget to vote! Quantum's voting cut-off is Dec 15 at 1159 PM ET ahead of the Dec 16 Annual Meeting. link to 2025 Annual Meeting landing page #QuantumCorp #ShareholderVote #QMCO A reminder for Quantum shareholders Please submit your vote ahead of the Dec 15, 1159 PM ET cut-off. The Annual Meeting will be held Dec 16. Vote now link to 2025 Annual Meeting landing page #QuantumCorp #ShareholderVote #QMCO Quantum shareholders please vote your shares by 1159 PM ET on Dec 15 in advance of the Dec 16 Annual Meeting. Vote here link to 2025 Annual Meeting landing page #QuantumCorp #ShareholderVote #QMCO Quantum shareholders are reminded to vote their shares ahead of the Dec 15 at 1159 PM ET voting deadline. The Annual Meeting will be held on Dec 16. Vote here link to 2025 Annual Meeting landing page #QuantumCorp #ShareholderVote #QMCO A reminder to Quantum shareholders Please submit your vote before the Dec 15 (1159 PM ET) cut-off to participate in the Dec 16 Annual Meeting. Vote here link to 2025 Annual Meeting landing page #QuantumCorp #ShareholderVote #QMCO

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