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Quantum Corp SEC Filings
What Quantum Corp has told the SEC happened, by the 8-K items and forms it filed under: when it reported results, who joined or left, what it bought or sold, and whether its auditor or its accounts ever changed.
QMCO overview →Filings on file
188
since Sep 26, 2016
Warning signs
27
latest Jun 15, 2026
Last results
Aug 10, 2026
8-K item 2.02
Industry
Computer Storage Devices
SIC 3572
Newest first
Each label is a form type or an 8-K item as filed; each row links to the filing.
| Filed | What it reports | Document |
|---|---|---|
| Jun 15, 2026 | Late filing notice NT 10-K | Read ↗ |
| Oct 6, 2025 | Auditor change 8-K | Read ↗ |
| Aug 26, 2025 | Delisting notice or listing transfer 8-K | Read ↗ |
| Aug 15, 2025 | Late filing notice NT 10-Q | Read ↗ |
| Aug 8, 2025 | Earlier accounts withdrawn 8-K | Read ↗ |
| Jul 23, 2025 | Delisting notice or listing transfer 8-K | Read ↗ |
| Jun 30, 2025 | Late filing notice NT 10-K | Read ↗ |
| Oct 10, 2024 | Delisting notice or listing transfer 8-K | Read ↗ |
| May 29, 2024 | Earlier accounts withdrawnMaterial agreementUnregistered share sale 8-K | Read ↗ |
| Mar 25, 2024 | Delisting notice or listing transferMaterial agreement 8-K | Read ↗ |
| Feb 14, 2024 | Delisting notice or listing transfer 8-K | Read ↗ |
| Feb 14, 2024 | Late filing notice NT 10-Q | Read ↗ |
| Nov 17, 2023 | Delisting notice or listing transfer 8-K | Read ↗ |
| Nov 13, 2023 | Late filing notice NT 10-Q | Read ↗ |
| Sep 26, 2023 | Delisting notice or listing transfer 8-K | Read ↗ |
| Aug 21, 2023 | Auditor change 8-K | Read ↗ |
| Jul 27, 2023 | Auditor change 8-K | Read ↗ |
| Jun 14, 2019 | Late filing notice NT 10-K | Read ↗ |
| Apr 9, 2019 | Late filing notice NT 10-Q | Read ↗ |
| Jan 25, 2019 | Auditor change 8-K | Read ↗ |
| Jan 15, 2019 | Delisting notice or listing transfer 8-K | Read ↗ |
| Nov 9, 2018 | Late filing notice NT 10-Q | Read ↗ |
| Sep 14, 2018 | Earlier accounts withdrawn 8-K | Read ↗ |
| Aug 10, 2018 | Late filing notice NT 10-Q | Read ↗ |
| Jun 15, 2018 | Late filing notice NT 10-K | Read ↗ |
| Feb 16, 2018 | Delisting notice or listing transfer 8-K | Read ↗ |
| Feb 12, 2018 | Late filing notice NT 10-Q | Read ↗ |
Source: Quantum Corp's EDGAR filing history, the last ten years. The labels are the form types and 8-K item numbers the company filed under, not a reading of what it wrote — an item 5.02 can be a chief executive fired or a director retiring on schedule — so each row links to the filing.
More on QMCO
Company overviewEverything on QMCO in one place, with the price.Insider tradingWhat QMCO's own officers and directors buy and sell.Who owns itEvery manager reporting a position in QMCO.Funds holding itWhich funds and ETFs hold QMCO, and how big a bet.LobbyingWhat QMCO spends lobbying Congress, and on what.Who lobbies for itThe lobbyists on QMCO's account, and who they worked for.Federal contractsWhat federal agencies pay QMCO.PatentsWhat QMCO is filing at the patent office.Workplace safetyWhat OSHA found at QMCO's sites.