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Stocks/QMCO/SEC Filings/8-K Nov 9, 2026

QMCO 8-K: SEC filing

Filed with the SEC on Nov 9, 2026 · accession 0001628280-26-072188

QMCO filed a 8-K (current report) with the SEC on Nov 9, 2026. A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more. The stock moved +17.4% by the first close after the filing.

Summary of the filing

Quantum Corporation furnished an 8-K reporting its financial results for the fiscal quarter ended September 30, 2026, with the earnings release attached as Exhibit 99.1.

For details, click here →How to read a 8-K →

Key details

RegistrantQuantum Corporation
Principal financial officer and chief accounting officerHiral A. Patel

How QMCO stock reacted

Close before

$14.47

Nov 6, 2026

First close after

+17.42%

$16.99

5 trading days

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Since filing

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Frequently asked questions

What did QMCO file with the SEC on Nov 9, 2026?

QMCO filed a 8-K (SEC filing). Quantum Corporation furnished an 8-K reporting its financial results for the fiscal quarter ended September 30, 2026, with the earnings release attached as Exhibit 99.1.

How do I read a 8-K?

A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more. The "Item" number tells you the topic (e.g. 2.02 results, 5.02 executive change, 1.01 new agreement, 1.03 bankruptcy). Exhibits (99.1 press release) usually hold the details.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 8-K (current report): A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more.

How did QMCO stock react to this filing?

QMCO closed at $14.47 before the filing and $16.99 on Nov 9, 2026 (+17.42%).

Other QMCO SEC filings

  • SCHEDULE 13G · SEC filingNov 6, 2026
  • 8-K · Cfo changeOct 9, 2026
  • 8-K · Executive departureSep 28, 2026
  • 8-K · Board changeSep 17, 2026
  • 8-K · Executive departureSep 1, 2026
  • SCHEDULE 13G · SEC filingAug 14, 2026
  • SCHEDULE 13G · SEC filingAug 14, 2026
  • 8-K · Executive departureAug 14, 2026
  • 10-Q · SEC filingAug 11, 2026
  • SCHEDULE 13G · SEC filingAug 10, 2026

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Source: SEC EDGAR filing 0001628280-26-072188. The summary and key details are extracted by SEPT from the filing and may contain errors. Price reaction uses daily closing prices. Not financial advice.