QUANTUM CORP /DE/ — 8-K Filings
340 8-K filings on record
This page lists all 8-K filings submitted to the SEC by QUANTUM CORP /DE/ (QMCO), sorted by most recent first. Each row links to the full filing on EdgarLookup. QUANTUM CORP /DE/ has filed 340 8-K documents with the SEC since 2012. To view all SEC filings by QUANTUM CORP /DE/, see the full filings list.
All
10-K
10-K/A
10-K405
10-Q
10-Q/A
144
15-12G
25-NSE
3
3/A
4
4/A
424B2
424B3
424B5
425
5
8-A12B
8-A12G
8-K
8-K/A
ARS
AW
CERT
CORRESP
D
DEF 14A
DEF 14C
DEFA14A
DEFC14A
DEFR14A
DFAN14A
EFFECT
NT 10-K
NT 10-Q
POS AM
PRE 14A
PRE 14C
PREC14A
PRER14A
PRRN14A
RW
S-1
S-1/A
S-3
S-3/A
S-3ASR
S-4
S-4/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SC TO-I
SC TO-I/A
SCHEDULE 13D
SCHEDULE 13D/A
SCHEDULE 13G/A
SD
SD/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 8-K | 8-K | 0001628280-26-008553 | Feb 17, 2026 | — |
| 8-K | 8-K | 0001628280-26-004461 | Feb 2, 2026 | — |
| 8-K | 8-K | 0001628280-26-002121 | Jan 15, 2026 | — |
| 8-K | 8-K | 0000709283-25-000091 | Dec 18, 2025 | Dec 16, 2025 |
| 8-K | 8-K | 0000709283-25-000083 | Nov 13, 2025 | — |
| 8-K | 8-K | 0000709283-25-000072 | Oct 28, 2025 | — |
| 8-K | 8-K | 0000709283-25-000063 | Oct 20, 2025 | — |
| 8-K | 8-K | 0000709283-25-000061 | Oct 6, 2025 | Sep 30, 2025 |
| 8-K | 8-K | 0001193125-25-212374 | Sep 23, 2025 | — |
| 8-K | 8-K | 0000709283-25-000047 | Sep 15, 2025 | Sep 12, 2025 |
| 8-K | 8-K | 0000709283-25-000038 | Sep 10, 2025 | — |
| 8-K | 8-K | 0000709283-25-000033 | Aug 28, 2025 | Aug 27, 2025 |
| 8-K | 8-K | 0000709283-25-000029 | Aug 26, 2025 | Aug 21, 2025 |
| 8-K | 8-K | 0000709283-25-000023 | Aug 18, 2025 | Aug 12, 2025 |
| 8-K | 8-K | 0000709283-25-000021 | Aug 8, 2025 | — |
| 8-K | 8-K | 0000709283-25-000018 | Jul 23, 2025 | Jul 17, 2025 |
| 8-K | 8-K | 0000709283-25-000016 | Jul 8, 2025 | Jul 1, 2025 |
| 8-K | 8-K | 0001193125-25-142697 | Jun 18, 2025 | Jun 12, 2025 |
| 8-K | 8-K | 0001193125-25-133841 | Jun 3, 2025 | Jun 2, 2025 |
| 8-K | 8-K | 0000709283-25-000014 | May 6, 2025 | — |
| 8-K | 8-K | 0000709283-25-000011 | Apr 29, 2025 | Apr 24, 2025 |
| 8-K | 8-K | 0000709283-25-000007 | Apr 17, 2025 | Apr 16, 2025 |
| 8-K | 8-K | 0001193125-25-072468 | Apr 3, 2025 | Mar 28, 2025 |
| 8-K | 8-K | 0000709283-25-000004 | Mar 20, 2025 | Mar 19, 2025 |
| 8-K | 8-K | 0000709283-25-000002 | Feb 12, 2025 | — |
| 8-K | 8-K | 0001628280-25-002693 | Jan 27, 2025 | Jan 25, 2025 |
| 8-K | 8-K | 0000709283-24-000035 | Nov 13, 2024 | — |
| 8-K | 8-K | 0000709283-24-000024 | Oct 10, 2024 | Oct 4, 2024 |
| 8-K | 8-K | 0000709283-24-000021 | Sep 23, 2024 | Sep 17, 2024 |
| 8-K | 8-K | 0001193125-24-203188 | Aug 20, 2024 | Aug 15, 2024 |
| 8-K | 8-K | 0001193125-24-200315 | Aug 14, 2024 | Aug 13, 2024 |
| 8-K | 8-K | 0000709283-24-000016 | Aug 13, 2024 | — |
| 8-K | 8-K | 0001193125-24-178588 | Jul 12, 2024 | Jul 11, 2024 |
| 8-K | 8-K | 0001193125-24-163387 | Jun 18, 2024 | Jun 12, 2024 |
| 8-K | 8-K | 0000709283-24-000013 | Jun 17, 2024 | — |
| 8-K | 8-K | 0001193125-24-158310 | Jun 10, 2024 | Jun 6, 2024 |
| 8-K | 8-K | 0001193125-24-149195 | May 29, 2024 | May 22, 2024 |
| 8-K | 8-K | 0001193125-24-130707 | May 3, 2024 | — |
| 8-K | 8-K | 0001193125-24-094785 | Apr 12, 2024 | Apr 8, 2024 |
| 8-K | 8-K | 0001193125-24-076507 | Mar 25, 2024 | Mar 19, 2024 |
| 8-K | 8-K | 0001193125-24-039984 | Feb 20, 2024 | Feb 14, 2024 |
| 8-K | 8-K | 0001193125-24-036343 | Feb 14, 2024 | Feb 13, 2024 |
| 8-K | 8-K | 0001193125-23-279794 | Nov 17, 2023 | Nov 14, 2023 |
| 8-K | 8-K | 0001193125-23-278766 | Nov 16, 2023 | Nov 9, 2023 |
| 8-K | 8-K | 0001193125-23-276056 | Nov 13, 2023 | Nov 10, 2023 |
| 8-K | 8-K | 0000709283-23-000035 | Sep 26, 2023 | Sep 20, 2023 |
| 8-K | 8-K | 0001193125-23-235310 | Sep 14, 2023 | Sep 12, 2023 |
| 8-K | 8-K | 0000709283-23-000030 | Aug 21, 2023 | — |
| 8-K | 8-K | 0000709283-23-000028 | Aug 8, 2023 | — |
| 8-K | 8-K | 0001193125-23-196075 | Jul 27, 2023 | Jul 21, 2023 |