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QUANTUM CORP /DE/ (QMCO) red flags

CIK 0000709283 路 San Jose, CA 路 SIC 3572 路 All EDGAR filings

8 verified red-flag event(s) since 2025-04-01. Red flag score: 46 how it's calculated

3QUANTUM CORP /DE/ (QMCO) Going-concern doubt (10-Q)micro2026-02-17
quarterly (unaudited) disclosure 路 company history
4QUANTUM CORP /DE/ (QMCO) Going-concern doubt (10-Q)micro2025-11-13
quarterly (unaudited) disclosure; also within 90 days: Auditor change, Late quarterly report (NT 10-Q) 路 company history
4QUANTUM CORP /DE/ (QMCO) Auditor changemicro2025-10-06
also within 90 days: Going-concern doubt, Late quarterly report (NT 10-Q), Non-reliance / restatement 路 company history
4QUANTUM CORP /DE/ (QMCO) Going-concern doubt (10-Q)micro2025-09-11
quarterly (unaudited) disclosure; also within 90 days: Auditor change, Late annual report (NT 10-K), Late quarterly report (NT 10-Q), Non-reliance / restatement 路 company history
5QUANTUM CORP /DE/ (QMCO) Going-concern doubtmicro2025-08-26
also within 90 days: Auditor change, Late annual report (NT 10-K), Late quarterly report (NT 10-Q), Non-reliance / restatement 路 company history
4QUANTUM CORP /DE/ (QMCO) Late quarterly report (NT 10-Q)micro2025-08-15
filed late on 2025-09-11; also within 90 days: Auditor change, Going-concern doubt, Late annual report (NT 10-K), Non-reliance / restatement 路 company history
5QUANTUM CORP /DE/ (QMCO) Non-reliance / restatementmicro2025-08-08
also within 90 days: Auditor change, Going-concern doubt, Late annual report (NT 10-K), Late quarterly report (NT 10-Q) 路 company history
5QUANTUM CORP /DE/ (QMCO) Late annual report (NT 10-K)micro2025-06-30
filed late on 2025-08-26; also within 90 days: Going-concern doubt, Late quarterly report (NT 10-Q), Non-reliance / restatement 路 company history

Red flag score: 46 / 100 · elevated

Computed only from the verified red flags below: each flag earns points for its severity, loses half its weight every 180 days, and companies with several different flag types in the past year get a bonus. Total points 30.7 → score = 100 × (1 − e−points/50) = 46. Full method

FlagFiledSeverityPointsAgeDecayCounts
Going-concern doubt2026-02-173/514.0242 d×0.395.5
Going-concern doubt2025-11-133/514.0338 d×0.273.8
Auditor change2025-10-063/514.0376 d×0.243.3
Going-concern doubt2025-09-113/514.0401 d×0.213.0
Going-concern doubt2025-08-264/522.0417 d×0.204.4
Late quarterly report (NT 10-Q)2025-08-153/59.8428 d×0.191.9
Non-reliance / restatement2025-08-085/530.0435 d×0.195.6
Late annual report (NT 10-K)2025-06-304/519.8474 d×0.163.2

The red flag score summarizes how many, how serious and how recent a company's verified SEC red-flag filings are. It describes filing events only. It is not a fraud score, credit rating or prediction, and not investment advice.

What happened next

FlagDateCap at flag30d90d180d
Going-concern doubt2026-02-17$81.3M-10.2%+38.1%+331.1%
Going-concern doubt2025-11-13$96.2M+0.4%-17.9%+16.1%
Auditor change2025-10-06$163.0M-30.3%-34.8%-47.7%
Going-concern doubt2025-09-11$80.2M+37.7%+10.7%-35.6%
Going-concern doubt2025-08-26$89.5M+23.7%-10.4%-32.5%
Late quarterly report (NT 10-Q)2025-08-15$85.1M+0.1%-10.7%-19.7%
Non-reliance / restatement2025-08-08$87.9M-4.2%+1.6%-26.6%
Late annual report (NT 10-K)2025-06-30$112.3M-12.9%+8.4%-25.0%

Stock return after each flag; pending = window not yet elapsed; n/a = no price data.

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