QUANTUM CORP /DE/ — 4 Filings
757 4 filings on record
This page lists all 4 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 757 4 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 |
|---|---|---|---|---|
| 4 | FORM 4 | 0001628280-26-014606 | Mar 4, 2026 | — |
| 4 | FORM 4 | 0001628280-26-000747 | Jan 5, 2026 | Jan 1, 2026 |
| 4 | FORM 4 | 0001628280-26-000741 | Jan 5, 2026 | Jan 1, 2026 |
| 4 | FORM 4 | 0001628280-26-000748 | Jan 5, 2026 | Jan 1, 2026 |
| 4 | FORM 4 | 0001628280-26-000750 | Jan 5, 2026 | Jan 1, 2026 |
| 4 | FORM 4 | 0001628280-26-000745 | Jan 5, 2026 | Jan 1, 2026 |
| 4 | FORM 4 | 0001628280-26-000753 | Jan 5, 2026 | Jan 1, 2026 |
| 4 | FORM 4 | 0001628280-26-000742 | Jan 5, 2026 | Jan 1, 2026 |
| 4 | FORM 4 | 0001628280-26-000749 | Jan 5, 2026 | Jan 1, 2026 |
| 4 | FORM 4 | 0000709283-25-000099 | Dec 29, 2025 | Sep 23, 2025 |
| 4 | — | 0000947871-25-001091 | Dec 23, 2025 | Dec 18, 2025 |
| 4 | FORM 4 | 0002085977-25-000004 | Nov 4, 2025 | Nov 1, 2025 |
| 4 | FORM 4 | 0001419111-25-000003 | Nov 4, 2025 | Nov 1, 2025 |
| 4 | FORM 4 | 0002085976-25-000005 | Nov 4, 2025 | Nov 1, 2025 |
| 4 | FORM 4 | 0001979364-25-000006 | Oct 3, 2025 | Oct 1, 2025 |
| 4 | FORM 4 | 0001628280-25-044169 | Oct 3, 2025 | Oct 2, 2025 |
| 4 | FORM 4 | 0001979364-25-000004 | Sep 17, 2025 | Sep 12, 2025 |
| 4 | FORM 4 | 0000709283-25-000013 | May 5, 2025 | May 1, 2025 |
| 4 | FORM 4 | 0000709283-25-000008 | Apr 23, 2025 | Apr 21, 2025 |
| 4 | FORM 4 | 0000709283-25-000010 | Apr 23, 2025 | Apr 21, 2025 |
| 4 | FORM 4 | 0000709283-25-000009 | Apr 23, 2025 | Apr 21, 2025 |
| 4 | 4 | 0000950170-25-055367 | Apr 17, 2025 | Apr 15, 2025 |
| 4 | FORM 4 | 0000709283-25-000005 | Apr 4, 2025 | Apr 2, 2025 |
| 4 | FORM 4 | 0000709283-25-000001 | Feb 5, 2025 | Feb 3, 2025 |
| 4 | 4 | 0000950170-25-006931 | Jan 17, 2025 | Jan 16, 2025 |
| 4 | 4 | 0000950170-25-006920 | Jan 17, 2025 | Nov 8, 2024 |
| 4 | 4 | 0000950170-25-006929 | Jan 17, 2025 | Jan 16, 2025 |
| 4 | 4 | 0000950170-25-006922 | Jan 17, 2025 | Jan 16, 2025 |
| 4 | 4 | 0000950170-25-003094 | Jan 7, 2025 | Jan 3, 2025 |
| 4 | FORM 4 | 0000709283-24-000049 | Dec 5, 2024 | Nov 8, 2024 |
| 4 | FORM 4 | 0000709283-24-000050 | Dec 5, 2024 | Nov 8, 2024 |
| 4 | FORM 4 | 0000709283-24-000048 | Dec 5, 2024 | Nov 8, 2024 |
| 4 | FORM 4 | 0000709283-24-000046 | Dec 5, 2024 | Nov 8, 2024 |
| 4 | FORM 4 | 0000709283-24-000047 | Dec 5, 2024 | Nov 8, 2024 |
| 4 | FORM 4 | 0000709283-24-000034 | Nov 5, 2024 | Nov 1, 2024 |
| 4 | FORM 4 | 0000709283-24-000032 | Oct 21, 2024 | Oct 1, 2024 |
| 4 | FORM 4 | 0000709283-24-000025 | Oct 21, 2024 | Oct 1, 2024 |
| 4 | FORM 4 | 0000709283-24-000033 | Oct 21, 2024 | Oct 1, 2024 |
| 4 | FORM 4 | 0000709283-24-000026 | Oct 21, 2024 | Oct 1, 2024 |
| 4 | FORM 4 | 0000709283-24-000027 | Oct 21, 2024 | Oct 1, 2024 |
| 4 | FORM 4 | 0000709283-24-000028 | Oct 21, 2024 | Oct 1, 2024 |
| 4 | FORM 4 | 0000709283-24-000029 | Oct 21, 2024 | Oct 1, 2024 |
| 4 | FORM 4 | 0000709283-24-000030 | Oct 21, 2024 | Oct 1, 2024 |
| 4 | FORM 4 | 0000709283-24-000031 | Oct 21, 2024 | Oct 1, 2024 |
| 4 | 4 | 0000950170-24-097747 | Aug 15, 2024 | Aug 13, 2024 |
| 4 | 4 | 0000950170-24-083742 | Jul 15, 2024 | Jul 11, 2024 |
| 4 | 4 | 0000950170-24-066221 | May 29, 2024 | May 24, 2024 |
| 4 | FORM 4 | 0000709283-24-000009 | Apr 23, 2024 | Jan 1, 2024 |
| 4 | FORM 4 | 0000709283-24-000010 | Apr 23, 2024 | Jan 1, 2024 |
| 4 | FORM 4 | 0000709283-24-000011 | Apr 23, 2024 | Jan 1, 2024 |