# Quantum Corp: Form SCHEDULE 13D/A, filed Dec 22, 2025

- Company: [Quantum Corp](/companies/qmco.md) (CIK 709283)
- Form: SCHEDULE 13D/A
- Filed: 2025-12-22
- Accepted by EDGAR: Dec 23, 2025, 01:32 ET
- Period: not reported
- Accession: 0000947871-25-001089
- Inline XBRL: no
- Main document: https://www.sec.gov/Archives/edgar/data/709283/000094787125001089/xslSCHEDULE_13D_X01/primary_doc.xml
- All documents and exhibits: https://www.sec.gov/Archives/edgar/data/709283/000094787125001089/

## Sections

Sections are extracted only from 10-K and 10-Q reports. Read this filing’s documents on sec.gov. https://www.sec.gov/Archives/edgar/data/709283/000094787125001089/xslSCHEDULE_13D_X01/primary_doc.xml

Filed Dec 22, 2025.
Source: SEC EDGAR, the filing index for accession 0000947871-25-001089. Last ingested by Listed: Oct 24, 2026, 14:56 ET. No prices; not investment advice.