QMCO · Quantum Corp /De/ · Documents
Market Cap
$721.60M
Shares
39.41M
Volume · Oct 20
1.63M
Avg daily vol (3M)
1.84M
The company's filings as submitted to the SEC's EDGAR system — 10-K, 10-Q, 8-K, proxy statements and more — listed most recent first.
| Type | AI summary | Filing Date | Period | Open |
|---|---|---|---|---|
| 8-K | Quantum Corporation expects to meet or exceed guidance for the fiscal quarter ended September 30, 2026. William H. White was terminated as Chief Financial Officer, and Hiral A. Patel was appointed Principal Financial Officer, both effective October 9, 2026. | 2026-10-09 | — | |
| 8-K | — | 2026-09-28 | — | |
| 8-K | — | 2026-09-17 | 2026-09-15 | |
| Investor Event Transcript | — | 2026-09-15 | 2025-12-31 | |
| 8-K | — | 2026-09-01 | — | |
| 8-K | — | 2026-08-14 | 2026-08-11 | |
| 10-Q | — | 2026-08-11 | 2026-06-30 | |
| 8-K | — | 2026-08-10 | — | |
| DEF 14A | — | 2026-07-29 | 2026-09-15 | |
| ARS | — | 2026-07-29 | 2026-03-31 | |
| DEFA14A | — | 2026-07-29 | — | |
| S-1 | — | 2026-07-14 | — | |
| 10-K | — | 2026-06-25 | 2026-03-31 | |
| 8-K | — | 2026-06-25 | — | |
| NT 10-K | — | 2026-06-15 | 2026-03-31 | |
| 8-K | — | 2026-06-05 | 2026-06-04 | |
| 8-K | — | 2026-06-02 | 2026-06-01 | |
| S-1 | — | 2026-02-19 | — | |
| 8-K | — | 2026-02-17 | — | |
| 10-Q | — | 2026-02-17 | 2025-12-31 | |
| 8-K | — | 2026-02-02 | — | |
| 8-K | — | 2026-01-15 | — | |
| 8-K | — | 2025-12-18 | 2025-12-16 | |
| DEFA14A | — | 2025-12-02 | — | |
| S-1 | — | 2025-11-17 | — | |
| 8-K | — | 2025-11-13 | — | |
| 10-Q | — | 2025-11-13 | 2025-09-30 | |
| DEF 14A | — | 2025-10-31 | 2025-12-16 | |
| DEFA14A | — | 2025-10-31 | — | |
| ARS | — | 2025-10-31 | 2025-03-31 | |
| 8-K | — | 2025-10-28 | — | |
| PRE 14A | — | 2025-10-21 | — | |
| 8-K | — | 2025-10-20 | — | |
| 8-K | — | 2025-10-06 | 2025-09-30 | |
| 10-Q/A | — | 2025-09-23 | 2025-06-30 | |
| 8-K | — | 2025-09-23 | — | |
| DEFA14A | — | 2025-09-23 | — | |
| 8-K | — | 2025-09-15 | 2025-09-12 | |
| 10-Q | — | 2025-09-11 | 2025-06-30 | |
| 8-K | — | 2025-09-10 | — | |
| 8-K | — | 2025-08-28 | 2025-08-27 | |
| 10-K | — | 2025-08-26 | 2025-03-31 | |
| 8-K | — | 2025-08-26 | 2025-08-21 | |
| 8-K | — | 2025-08-18 | 2025-08-12 | |
| NT 10-Q | — | 2025-08-15 | 2025-06-30 | |
| 8-K | — | 2025-08-08 | — | |
| 8-K | — | 2025-07-23 | 2025-07-17 | |
| 8-K | — | 2025-07-08 | 2025-07-01 | |
| NT 10-K | — | 2025-06-30 | 2025-03-31 | |
| 8-K | — | 2025-06-18 | 2025-06-12 |
Showing 1–50 of 178 filings