QUANTUM CORP /DE/ reports

Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
San Jose, CA
SEC filing record 1 source field available
Fiscal year end
31 March
QUANTUM CORP /DE/ has filed 1,994 SEC EDGAR filings since 28 Jan 1994

SEC filing history

Showing 26-50 of 1,000 matching filings.

Per page
25
Current page
2
4

FORM 4

Filing date
29 Dec 2025
Reporting date
23 Sep 2025
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4

4 filing

Filing date
23 Dec 2025
Reporting date
18 Dec 2025
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3

3 filing

Filing date
23 Dec 2025
Reporting date
18 Dec 2025
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SCHEDULE 13D/A File 005-35818

SCHEDULE 13D/A filing

Filing date
22 Dec 2025
Reporting date
Not listed
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DEFA14A File 001-13449

DEFA14A

Filing date
02 Dec 2025
Reporting date
Not listed
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424B3 File 333-291568

424B3

Filing date
24 Nov 2025
Reporting date
Not listed
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EFFECT File 333-291568

EFFECT filing

Filing date
21 Nov 2025
Reporting date
Not listed
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CORRESP

CORRESP filing

Filing date
19 Nov 2025
Reporting date
Not listed
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4

FORM 4

Filing date
04 Nov 2025
Reporting date
01 Nov 2025
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4

FORM 4

Filing date
04 Nov 2025
Reporting date
01 Nov 2025
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4

FORM 4

Filing date
04 Nov 2025
Reporting date
01 Nov 2025
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ARS File 001-13449

ARS

Filing date
31 Oct 2025
Reporting date
31 Mar 2025
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DEFA14A File 001-13449

DEFA14A

Filing date
31 Oct 2025
Reporting date
Not listed
SEC evidence
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DEF 14A File 001-13449

DEF 14A

Filing date
31 Oct 2025
Reporting date
16 Dec 2025
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PRE 14A File 001-13449

PRE 14A

Filing date
21 Oct 2025
Reporting date
21 Oct 2025
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SCHEDULE 13D File 005-35818

SCHEDULE 13D filing

Filing date
10 Oct 2025
Reporting date
Not listed
SEC evidence
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4

FORM 4

Filing date
03 Oct 2025
Reporting date
02 Oct 2025
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4

FORM 4

Filing date
03 Oct 2025
Reporting date
01 Oct 2025
SEC evidence
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