Quantum Corporation (QMCO)
Nasdaq: QMCO · Computer Storage Devices · San Jose, CA · filing with the SEC since 1994
Filings
421 filings since 2017 beside 361 insider forms · Accelerated filer and smaller reporting company · read from EDGAR on Nov 13, 2026Due nextAccelerated filer and smaller reporting company
10-Q
Quarterly report for the quarter ending Dec 31, 2026Accelerated filers have 40 days after the quarter ends; quarter ends are taken to the month end.
by Feb 9, 2027
10-K
Annual report for the fiscal year ending Mar 31, 2027Accelerated filers have 75 days after the fiscal year ends.
by Jun 14, 2027
A deadline is the latest date the SEC's rules allow for its filer category. It is not a forecast of the day the company files. Last time, the results release (8-K item 2.02) came 40 days after the quarter ended. The proxy statement was last filed Jul 29, 2026.
Filings a yearinsider forms included
80799378587510066
2026 counts to Nov 13, 2026.
Officer or director change (8-K item 5.02): 17 times in the last 36 months, the newest Oct 9, 2026.Auditor change (8-K item 4.01): 1 time in the last 36 months, the newest Oct 6, 2025.Listing warning from its exchange (8-K item 3.01): 6 times in the last 36 months, the newest Aug 26, 2025.Warning not to rely on past financial statements (8-K item 4.02): 2 times in the last 36 months, the newest Aug 8, 2025.SEC letters: 13 in the last 36 months, the newest Feb 19, 2026.A late-filing notice, Form NT 10-K, filed Jun 15, 2026.A late-filing notice, Form NT 10-Q, filed Aug 15, 2025.A late-filing notice, Form NT 10-K, filed Jun 30, 2025.A late-filing notice, Form NT 10-Q, filed Feb 14, 2024.A late-filing notice, Form NT 10-Q, filed Nov 13, 2023.
Insider forms (3, 4, 5 and 144) are counted each year but not listed here; the people and their trades are on the Ownership tab.
FiledFormWhat it is, in plain wordsPeriodAsk
Jun 5, 2026
8-K items 1.02, 5.08, 8.01
Major agreement ended; item 5.08; Other event · Current report
Jun 4, 2026
Jun 2, 2026
8-K items 1.01, 2.02, 2.03, 3.02, 8.01, 9.01
Major agreement signed; Results released; New debt or obligation taken on; Shares sold without registration; Other event · Current report
Jun 1, 2026
Dec 18, 2025
8-K items 1.01, 2.03, 3.02, 5.07, 9.01
Major agreement signed; New debt or obligation taken on; Shares sold without registration; Shareholder vote · Current report
Dec 16, 2025
40 of 421 shown
Every row opens the filing on EDGAR. The plain words are the site's own for each form and each 8-K item; the complete history, insider forms included, is on EDGAR.