Mailing Address 224 AIRPORT PARKWAY SUITE 550 SAN JOSE CA 95110
Business Address 224 AIRPORT PARKWAY SUITE 550 SAN JOSE CA 95110 408 944 4000
QUANTUM CORP /DE/ CIK#: 0000709283 (see all company filings)

SIC: 3572 - COMPUTER STORAGE DEVICES
State location: CA | State of Inc.: DE | Fiscal Year End: 0331
(CF Office: 06 Technology)
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Items 1 - 40  0000709283 Filings RSS Feed
Filings Format Description Filed/Effective File/Film Number
S-3  Documents Registration statement under Securities Act of 1933
Acc-no: 0001628280-25-018394 (33 Act)  Size: 293 KB
2025-04-18 333-286635
25850672
SCHEDULE 13D/A  Documents [Amend] General Statement of Acquisition of Beneficial Ownership
Acc-no: 0000950170-25-055369 (34 Act)  Size: 8 KB
2025-04-17 005-35818
25847248
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0000709283-25-000007 (34 Act)  Size: 1 MB
2025-04-17 001-13449
25844062
8-K  Documents   Interactive Data Current report, items 5.02, 8.01, and 9.01
Acc-no: 0001193125-25-072468 (34 Act)  Size: 187 KB
2025-04-03 001-13449
25810715
SCHEDULE 13D/A  Documents [Amend] General Statement of Acquisition of Beneficial Ownership
Acc-no: 0000950170-25-047962 (34 Act)  Size: 7 KB
2025-03-31 005-35818
25795857
DEF 14A  Documents Other definitive proxy statements
Acc-no: 0001193125-25-065483 (34 Act)  Size: 817 KB
2025-03-27 001-13449
25779156
SCHEDULE 13D/A  Documents [Amend] General Statement of Acquisition of Beneficial Ownership
Acc-no: 0000950170-25-043427 (34 Act)  Size: 123 KB
2025-03-21 005-35818
25762015
8-K  Documents   Interactive Data Current report, item 5.02
Acc-no: 0000709283-25-000004 (34 Act)  Size: 172 KB
2025-03-20 001-13449
25757830
PRE 14A  Documents Other preliminary proxy statements
Acc-no: 0001193125-25-055726 (34 Act)  Size: 841 KB
2025-03-17 001-13449
25745728
SCHEDULE 13D/A  Documents [Amend] General Statement of Acquisition of Beneficial Ownership
Acc-no: 0000902664-25-001166 (34 Act)  Size: 13 KB
2025-02-21 005-35818
25653803
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000709283-25-000003 (34 Act)  Size: 7 MB
2025-02-12 001-13449
25615920
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0000709283-25-000002 (34 Act)  Size: 460 KB
2025-02-12 001-13449
25614893
EFFECT  Documents Notice of Effectiveness
Acc-no: 9999999995-25-000396 (33 Act)  Size: 1 KB
2025-02-11 333-284528
25611722
424B3  Documents Prospectus [Rule 424(b)(3)]
Acc-no: 0001628280-25-004870 (33 Act)  Size: 4 MB
2025-02-11 333-284528
25609682
CORRESP  Documents [Cover]Correspondence
Acc-no: 0001628280-25-004350 Size: 10 KB
2025-02-07
S-1/A  Documents   Interactive Data [Amend] General form for registration of securities under the Securities Act of 1933
Acc-no: 0001628280-25-004285 (33 Act)  Size: 21 MB
2025-02-06 333-284528
25598388
UPLOAD  Documents [Cover]SEC-generated letter
Acc-no: 0000000000-25-001155 Size: 40 KB
2025-02-03 333-284528
SCHEDULE 13G/A  Documents [Amend] Statement of Beneficial Ownership by Certain Investors
Acc-no: 0000932471-25-000250 (34 Act)  Size: 6 KB
2025-01-31 005-35818
25576361
S-1  Documents   Interactive Data General form for registration of securities under the Securities Act of 1933
Acc-no: 0001628280-25-002700 (33 Act)  Size: 24 MB
2025-01-27 333-284528
25560181
8-K  Documents   Interactive Data Current report, items 1.01, 3.02, and 9.01
Acc-no: 0001628280-25-002693 (34 Act)  Size: 2 MB
2025-01-27 001-13449
25560135
SCHEDULE 13D/A  Documents [Amend] General Statement of Acquisition of Beneficial Ownership
Acc-no: 0000950170-25-003093 (34 Act)  Size: 9 KB
2025-01-07 005-35818
25516038
SCHEDULE 13D  Documents General Statement of Acquisition of Beneficial Ownership
Acc-no: 0000902664-25-000053 (34 Act)  Size: 22 KB
2025-01-06 005-35818
25510932
SC 13G/A  Documents [Amend] Statement of Beneficial Ownership by Certain Investors
Acc-no: 0001415889-24-028216 (34 Act)  Size: 83 KB
2024-12-04 005-35818
241525438
UPLOAD  Documents [Cover]SEC-generated letter
Acc-no: 0000000000-24-012905 Size: 39 KB
2024-11-21 001-13449
CORRESP  Documents [Cover]Correspondence
Acc-no: 0000709283-24-000037 Size: 10 KB
2024-11-18
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000709283-24-000036 (34 Act)  Size: 7 MB
2024-11-14 001-13449
241456510
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0000709283-24-000035 (34 Act)  Size: 466 KB
2024-11-13 001-13449
241454229
UPLOAD  Documents [Cover]SEC-generated letter
Acc-no: 0000000000-24-012439 Size: 43 KB
2024-11-07 001-13449
8-K  Documents   Interactive Data Current report, item 3.01
Acc-no: 0000709283-24-000024 (34 Act)  Size: 172 KB
2024-10-10 001-13449
241365436
CORRESP  Documents [Cover]Correspondence
Acc-no: 0000709283-24-000023 Size: 11 KB
2024-10-03
CORRESP  Documents [Cover]Correspondence
Acc-no: 0000709283-24-000022 Size: 16 KB
2024-09-26
8-K  Documents   Interactive Data Current report, item 8.01
Acc-no: 0000709283-24-000021 (34 Act)  Size: 172 KB
2024-09-23 001-13449
241316294
UPLOAD  Documents [Cover]SEC-generated letter
Acc-no: 0000000000-24-010496 Size: 42 KB
2024-09-17 001-13449
S-8  Documents Securities to be offered to employees in employee benefit plans
Acc-no: 0000709283-24-000020 (33 Act)  Size: 285 KB
2024-09-16 333-282131
241299195
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000709283-24-000019 (34 Act)  Size: 9 MB
2024-09-06 001-13449
241282423
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000709283-24-000018 (34 Act)  Size: 9 MB
2024-09-06 001-13449
241282419
8-K  Documents   Interactive Data Current report, items 5.07 and 8.01
Acc-no: 0001193125-24-203188 (34 Act)  Size: 172 KB
2024-08-20 001-13449
241222646
SC 13D/A  Documents [Amend] General Statement of Acquisition of Beneficial Ownership
Acc-no: 0001193125-24-201499 (34 Act)  Size: 56 KB
2024-08-15 005-35818
241213847
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000709283-24-000017 (34 Act)  Size: 6 MB
2024-08-14 001-13449
241209681
8-K  Documents   Interactive Data Current report, items 1.01, 5.02, and 9.01
Acc-no: 0001193125-24-200315 (34 Act)  Size: 4 MB
2024-08-14 001-13449
241204577