Quantum Corp /DE/ SEC filings QMCO
Quantum Corp /DE/ has 1,000 filings in SEC EDGAR's recent list, going back to Jul 3, 2013. Its latest annual report, Form ARS, was filed on Jul 29, 2026 for the period ended Mar 31, 2026. The latest quarterly report (Form 10-Q) was filed on Aug 11, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 9, 2026 (officer or director change, other events). The company's fiscal year ends on March 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| DEFA14A | Additional proxy material | Jul 29, 2026 | — |
| DEF 14A | Proxy statement | Jul 29, 2026 | Sep 15, 2026 |
| DEFA14A | Additional proxy material | Dec 2, 2025 | — |
| DEFA14A | Additional proxy material | Oct 31, 2025 | — |
| DEF 14A | Proxy statement | Oct 31, 2025 | Dec 16, 2025 |
| PRE 14A | Preliminary proxy statement | Oct 21, 2025 | Oct 21, 2025 |
| DEFA14A | Additional proxy material | Sep 23, 2025 | — |
| DEF 14A | Proxy statement | Mar 27, 2025 | Apr 24, 2025 |
| PRE 14A | Preliminary proxy statement | Mar 17, 2025 | Mar 17, 2025 |
| DEFA14A | Additional proxy material | Aug 2, 2024 | — |
| DEFA14A | Additional proxy material | Jul 2, 2024 | — |
| DEF 14A | Proxy statement | Jul 2, 2024 | Aug 15, 2024 |
| PRE 14A | Preliminary proxy statement | Jun 18, 2024 | Aug 15, 2024 |
| DEFA14A | Additional proxy material | Aug 21, 2023 | — |
| DEFA14A | Additional proxy material | Jul 27, 2023 | — |
| DEF 14A | Proxy statement | Jul 27, 2023 | Sep 12, 2023 |
| DEFA14A | Additional proxy material | Jul 5, 2022 | — |
| DEF 14A | Proxy statement | Jul 5, 2022 | Mar 31, 2022 |
| PRE 14A | Preliminary proxy statement | Jun 16, 2022 | Mar 31, 2022 |
| DEFA14A | Additional proxy material | Aug 2, 2021 | — |
| DEF 14A | Proxy statement | Jul 28, 2021 | Mar 31, 2021 |
| DEFA14A | Additional proxy material | Jul 2, 2020 | — |
| DEF 14A | Proxy statement | Jul 2, 2020 | Mar 31, 2020 |
| DEFA14A | Additional proxy material | Nov 7, 2019 | — |
| DEF 14A | Proxy statement | Oct 16, 2019 | Nov 13, 2019 |
| DEFA14A | Additional proxy material | Jul 12, 2017 | — |
| PRE 14A | Preliminary proxy statement | Jun 22, 2017 | Mar 31, 2017 |
| DEF 14A | Proxy statement | Jun 22, 2017 | Mar 31, 2017 |
| DEFA14A | Additional proxy material | Mar 3, 2017 | — |
| DEFA14A | Additional proxy material | Feb 15, 2017 | — |
| DEFA14A | Additional proxy material | Feb 3, 2017 | — |
| PRE 14A | Preliminary proxy statement | Feb 3, 2017 | Mar 31, 2017 |
| DEFA14A | Additional proxy material | Jan 25, 2017 | — |
| DEFA14A | Additional proxy material | Jan 12, 2017 | — |
| DEFA14A | Additional proxy material | Nov 2, 2016 | — |
| DEFA14A | Additional proxy material | Sep 26, 2016 | — |
| DEFA14A | Additional proxy material | Jun 6, 2016 | — |
| DEFA14A | Additional proxy material | Jul 21, 2015 | — |
| DEF 14A | Proxy statement | Jul 21, 2015 | Aug 31, 2015 |
| DEFA14A | Additional proxy material | Jul 29, 2014 | — |
| DEF 14A | Proxy statement | Jul 29, 2014 | Sep 9, 2014 |
Showing 41 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Computer Storage Devices (SIC 3572)
- Listed as
- QMCO (Nasdaq)
- Fiscal year ends
- March 31
- Incorporated in
- DE
- Headquarters
- Centennial, CO
- SEC filer status
- Accelerated filer, Smaller reporting company
- SEC CIK
- 709283
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.