KOSS CORP — All Filings
696 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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10-K
10-K/A
10-K405
10-Q
10-Q/A
3
3/A
4
4/A
424B3
8-K
8-K/A
ARS
CORRESP
DEF 14A
DEFA14A
DEFR14A
PRE 14A
S-3
S-3/A
S-8
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 8-K | 8-K | 0000056701-23-000011 | May 11, 2023 | — |
| 10-Q | 10-Q | 0000056701-23-000007 | Jan 27, 2023 | Dec 31, 2022 |
| 8-K | 8-K | 0000056701-23-000005 | Jan 26, 2023 | — |
| 8-K | 8-K | 0000056701-22-000032 | Oct 28, 2022 | — |
| 10-Q | 10-Q | 0000056701-22-000030 | Oct 28, 2022 | Sep 30, 2022 |
| 8-K | 8-K | 0000056701-22-000025 | Oct 21, 2022 | — |
| DEF 14A | DEF 14A | 0000056701-22-000023 | Aug 26, 2022 | Aug 25, 2022 |
| 10-K | 10-K | 0000056701-22-000021 | Aug 26, 2022 | Jun 30, 2022 |
| 8-K | 8-K | 0000056701-22-000019 | Aug 25, 2022 | — |
| 8-K | — | 0000898432-22-000473 | Jul 25, 2022 | — |
| 4 | FORM 4 SUBMISSION | 0001209191-22-039939 | Jun 30, 2022 | Mar 23, 2022 |
| 4 | FORM 4 SUBMISSION | 0001209191-22-039940 | Jun 30, 2022 | Mar 23, 2022 |
| SC 13D/A | — | 0000898432-22-000361 | Jun 3, 2022 | — |
| 4 | FORM 4 SUBMISSION | 0001209191-22-033950 | Jun 3, 2022 | Mar 23, 2022 |
| SC 13D/A | — | 0000898432-22-000362 | Jun 3, 2022 | — |
| 4 | FORM 4 SUBMISSION | 0001209191-22-033947 | Jun 3, 2022 | Mar 23, 2022 |
| 4 | FORM 4 SUBMISSION | 0001209191-22-033952 | Jun 3, 2022 | Jun 2, 2022 |
| 4 | FORM 4 SUBMISSION | 0001209191-22-033552 | Jun 2, 2022 | Jun 1, 2022 |
| SD | FORM SD | 0000056701-22-000015 | May 26, 2022 | — |
| 10-Q | 10-Q | 0000056701-22-000013 | May 6, 2022 | Mar 31, 2022 |
| 8-K | 8-K | 0000056701-22-000011 | May 5, 2022 | — |
| 3 | FORM 3 SUBMISSION | 0001209191-22-013638 | Feb 28, 2022 | — |
| 10-Q | 10-Q | 0000056701-22-000006 | Feb 4, 2022 | Dec 31, 2021 |
| 8-K | 8-K | 0000056701-22-000004 | Feb 3, 2022 | — |
| 4 | FORM 4 SUBMISSION | 0001209191-21-062469 | Nov 2, 2021 | — |
| 10-Q | 10-Q | 0000056701-21-000036 | Oct 29, 2021 | Sep 30, 2021 |
| 8-K | 8-K | 0000056701-21-000034 | Oct 28, 2021 | — |
| 8-K | 8-K | 0000056701-21-000029 | Oct 14, 2021 | — |
| 4 | FORM 4 SUBMISSION | 0001209191-21-056612 | Sep 17, 2021 | Sep 15, 2021 |
| SC 13D/A | — | 0000898432-21-000654 | Sep 8, 2021 | — |
| SC 13D/A | — | 0000898432-21-000653 | Sep 8, 2021 | — |
| 4 | FORM 4 SUBMISSION | 0001209191-21-054751 | Sep 3, 2021 | Aug 26, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-054415 | Sep 2, 2021 | Aug 31, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-054416 | Sep 2, 2021 | Aug 31, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-054060 | Aug 31, 2021 | Aug 27, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-054059 | Aug 31, 2021 | Aug 27, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-053533 | Aug 26, 2021 | Aug 25, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-053529 | Aug 26, 2021 | Aug 24, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-053532 | Aug 26, 2021 | Aug 24, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-053528 | Aug 26, 2021 | Aug 24, 2021 |
| 10-K | 10-K | 0000056701-21-000024 | Aug 20, 2021 | Jun 30, 2021 |
| DEF 14A | DEF 14A | 0000056701-21-000026 | Aug 20, 2021 | Aug 19, 2021 |
| 8-K | 8-K | 0000056701-21-000022 | Aug 19, 2021 | — |
| 8-K | — | 0000898432-21-000585 | Jul 27, 2021 | Jul 21, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-044855 | Jul 2, 2021 | Jul 1, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-044854 | Jul 2, 2021 | Jul 1, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-040897 | Jun 16, 2021 | Jun 15, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-040903 | Jun 16, 2021 | Jun 14, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-039527 | Jun 10, 2021 | Jun 8, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-037637 | Jun 3, 2021 | Jun 2, 2021 |