Company · CIK 709283 # QUANTUM CORP /DE/ | CIK | [709283](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000709283) (SEC EDGAR) | | --- | --- | | Industry (SIC) | 3572 — Computer Storage Devices | | Incorporated in | DE | | Business address | CO | | Listed | QMCO (Nasdaq) | | First annual or quarterly report | 1994-02-14 | ## Offerings 13 registrations | Registration | Label and status | First filed | Last event | Filings | | --- | --- | --- | --- | --- | | 333-297438 | Registered company Effective | 2026-07-14 | 2026-07-24 | 2 | | 333-293560 | Registered company Effective | 2026-02-19 | 2026-02-23 | 2 | | 333-291568 | Registered company Effective | 2025-11-17 | 2025-11-21 | 2 | | 333-286635 | Shelf Effective | 2025-04-18 | 2025-09-30 | 3 | | 333-284528 | Registered company Effective | 2025-01-27 | 2025-02-11 | 3 | | 333-269061 | Shelf Effective | 2022-12-29 | 2023-01-13 | 2 | | 333-269022 | Shelf Withdrawn | 2022-12-27 | 2022-12-29 | 2 | | 333-250976 | Shelf Effective | 2020-11-25 | 2022-03-29 | 3 | | 333-261733 | Shelf Effective | 2021-12-17 | 2021-12-29 | 2 | | 333-258922 | Shelf Effective | 2021-08-19 | 2021-08-24 | 2 | | 333-252609 | Shelf Effective | 2021-02-01 | 2021-02-11 | 2 | | 333-109587 | Shelf Dormant | 2003-10-09 | 2003-10-09 | 1 | | 333-103680 | Shelf Dormant | 2003-03-07 | 2003-03-07 | 1 | ## Filings 28 | Filed | Filing | Registration | Accession | | --- | --- | --- | --- | | 2026-07-24 | [EFFECT](https://www.sec.gov/Archives/edgar/data/709283/999999999526002444/9999999995-26-002444-index.htm) Declared effective | 333-297438 | 9999999995-26-002444 | | 2026-07-14 | [S-1](https://www.sec.gov/Archives/edgar/data/709283/000162828026048062/0001628280-26-048062-index.htm) Registration filed | 333-297438 | 0001628280-26-048062 | | 2026-02-23 | [EFFECT](https://www.sec.gov/Archives/edgar/data/709283/999999999526000653/9999999995-26-000653-index.htm) Declared effective | 333-293560 | 9999999995-26-000653 | | 2026-02-19 | [S-1](https://www.sec.gov/Archives/edgar/data/709283/000162828026009335/0001628280-26-009335-index.htm) Registration filed | 333-293560 | 0001628280-26-009335 | | 2025-11-21 | [EFFECT](https://www.sec.gov/Archives/edgar/data/709283/999999999525003355/9999999995-25-003355-index.htm) Declared effective | 333-291568 | 9999999995-25-003355 | | 2025-11-17 | [S-1](https://www.sec.gov/Archives/edgar/data/709283/000162828025052461/0001628280-25-052461-index.htm) Registration filed | 333-291568 | 0001628280-25-052461 | | 2025-09-30 | [EFFECT](https://www.sec.gov/Archives/edgar/data/709283/999999999525003172/9999999995-25-003172-index.htm) Declared effective | 333-286635 | 9999999995-25-003172 | | 2025-04-28 | [EFFECT](https://www.sec.gov/Archives/edgar/data/709283/999999999525001270/9999999995-25-001270-index.htm) Declared effective | 333-286635 | 9999999995-25-001270 | | 2025-04-18 | [S-3](https://www.sec.gov/Archives/edgar/data/709283/000162828025018394/0001628280-25-018394-index.htm) Shelf registered | 333-286635 | 0001628280-25-018394 | | 2025-02-11 | [EFFECT](https://www.sec.gov/Archives/edgar/data/709283/999999999525000396/9999999995-25-000396-index.htm) Declared effective | 333-284528 | 9999999995-25-000396 | | 2025-02-06 | [S-1/A](https://www.sec.gov/Archives/edgar/data/709283/000162828025004285/0001628280-25-004285-index.htm) Amendment | 333-284528 | 0001628280-25-004285 | | 2025-01-27 | [S-1](https://www.sec.gov/Archives/edgar/data/709283/000162828025002700/0001628280-25-002700-index.htm) Registration filed | 333-284528 | 0001628280-25-002700 | | 2023-01-13 | [EFFECT](https://www.sec.gov/Archives/edgar/data/709283/999999999523000111/9999999995-23-000111-index.htm) Declared effective | 333-269061 | 9999999995-23-000111 | | 2022-12-29 | [S-3](https://www.sec.gov/Archives/edgar/data/709283/000070928322000057/0000709283-22-000057-index.htm) Shelf registered | 333-269061 | 0000709283-22-000057 | | 2022-12-29 | [RW](https://www.sec.gov/Archives/edgar/data/709283/000070928322000056/0000709283-22-000056-index.htm) Withdrawn | 333-269022 | 0000709283-22-000056 | | 2022-12-27 | [S-3ASR](https://www.sec.gov/Archives/edgar/data/709283/000070928322000055/0000709283-22-000055-index.htm) Shelf registered | 333-269022 | 0000709283-22-000055 | | 2022-03-29 | [424B5](https://www.sec.gov/Archives/edgar/data/709283/000119312522088220/0001193125-22-088220-index.htm) Shelf takedown | 333-250976 | 0001193125-22-088220 | | 2021-12-29 | [EFFECT](https://www.sec.gov/Archives/edgar/data/709283/999999999521004875/9999999995-21-004875-index.htm) Declared effective | 333-261733 | 9999999995-21-004875 | | 2021-12-17 | [S-3](https://www.sec.gov/Archives/edgar/data/709283/000070928321000077/0000709283-21-000077-index.htm) Shelf registered | 333-261733 | 0000709283-21-000077 | | 2021-08-24 | [EFFECT](https://www.sec.gov/Archives/edgar/data/709283/999999999521003297/9999999995-21-003297-index.htm) Declared effective | 333-258922 | 9999999995-21-003297 | | 2021-08-19 | [S-3](https://www.sec.gov/Archives/edgar/data/709283/000070928321000049/0000709283-21-000049-index.htm) Shelf registered | 333-258922 | 0000709283-21-000049 | | 2021-02-11 | [EFFECT](https://www.sec.gov/Archives/edgar/data/709283/999999999521000611/9999999995-21-000611-index.htm) Declared effective | 333-252609 | 9999999995-21-000611 | | 2021-02-01 | [S-3](https://www.sec.gov/Archives/edgar/data/709283/000070928321000004/0000709283-21-000004-index.htm) Shelf registered | 333-252609 | 0000709283-21-000004 | | 2020-12-09 | [EFFECT](https://www.sec.gov/Archives/edgar/data/709283/999999999520003460/9999999995-20-003460-index.htm) Declared effective | 333-250976 | 9999999995-20-003460 | | 2020-11-25 | [S-3](https://www.sec.gov/Archives/edgar/data/709283/000070928320000038/0000709283-20-000038-index.htm) Shelf registered | 333-250976 | 0000709283-20-000038 | | 2006-07-21 | [EFFECT](https://www.sec.gov/Archives/edgar/data/709283/999999999506000852/9999999995-06-000852-index.htm) Declared effective | 333-134988 | 9999999995-06-000852 | | 2003-10-09 | [S-3](https://www.sec.gov/Archives/edgar/data/709283/000070928303000033/0000709283-03-000033-index.htm) Shelf registered | 333-109587 | 0000709283-03-000033 | | 2003-03-07 | [S-3](https://www.sec.gov/Archives/edgar/data/709283/000070928303000002/0000709283-03-000002-index.htm) Shelf registered | 333-103680 | 0000709283-03-000002 | [All filings of this company](https://equitycapital.markets/filings?cik=709283) · [CSV](https://equitycapital.markets/filings.csv?cik=709283) --- Source page: https://equitycapital.markets/company/709283 · Data: U.S. SEC EDGAR · CC BY 4.0