Koss Corporation is a Delaware corporation engaged in the design, manufacture, and sale of stereo headphones and related accessories. The company operates as a single reporting segment, leasing its plant and office in Milwaukee, Wisconsin. Domestic sales are handled through sales representatives and independent manufacturers' representatives serving retailers, distributors, and OEMs. International markets are served through sales personnel in the Netherlands and the Caucasus region utilizing independent distributors.
expected 2026-11-26
| Filed | Period | Accession | Source | Full Text |
|---|---|---|---|---|
| 2026-08-28 | 2026-06-30 | 0000056701-26-000034 | EDGAR | 35K words |
| 2025-08-29 | 2025-06-30 | 0000056701-25-000044 | EDGAR | 32K words |
| 2024-08-30 | 2024-06-30 | 0000056701-24-000028 | EDGAR | 31K words |
| 2023-08-25 | 2023-06-30 | 0000056701-23-000026 | EDGAR | — |
| 2022-08-26 | 2022-06-30 | 0000056701-22-000021 | EDGAR | — |
| 2021-08-20 | 2021-06-30 | 0000056701-21-000024 | EDGAR | — |
| 2020-08-27 | 2020-06-30 | 0001437749-20-018841 | EDGAR | — |
| 2019-08-30 | 2019-06-30 | 0001437749-19-017702 | EDGAR | — |
| 2018-08-23 | 2018-06-30 | 0000056701-18-000033 | EDGAR | — |
| 2017-08-25 | 2017-06-30 | 0000056701-17-000038 | EDGAR | — |
| Filed | Period | Accession | Source | Full Text |
|---|---|---|---|---|
| 2026-01-30 | 2025-12-31 | 0000056701-26-000008 | EDGAR | 15K words |
| 2025-10-31 | 2025-09-30 | 0000056701-25-000059 | EDGAR | 13K words |
| 2025-05-09 | 2025-03-31 | 0000056701-25-000017 | EDGAR | 12K words |
| 2025-01-31 | 2024-12-31 | 0000056701-25-000008 | EDGAR | 13K words |
| 2024-11-01 | 2024-09-30 | 0000056701-24-000043 | EDGAR | 11K words |
| 2024-05-10 | 2024-03-31 | 0000056701-24-000014 | EDGAR | 15K words |
| 2024-02-02 | 2023-12-31 | 0000056701-24-000008 | EDGAR | 15K words |
| 2023-10-27 | 2023-09-30 | 0000056701-23-000044 | EDGAR | — |
| 2023-05-12 | 2023-03-31 | 0000056701-23-000013 | EDGAR | — |
| 2023-01-27 | 2022-12-31 | 0000056701-23-000007 | EDGAR | — |
| 2022-10-28 | 2022-09-30 | 0000056701-22-000030 | EDGAR | — |
| 2022-05-06 | 2022-03-31 | 0000056701-22-000013 | EDGAR | — |
| Filed | Accession | Source | Full Text |
|---|---|---|---|
| 2026-08-27 | 0000056701-26-000032 | EDGAR | 2K words |
| 2026-01-29 | 0000056701-26-000006 | EDGAR | 2K words |
| 2025-10-30 | 0000056701-25-000057 | EDGAR | 1K words |
| 2025-10-20 | 0000056701-25-000052 | EDGAR | 1K words |
| 2025-08-28 | 0000056701-25-000042 | EDGAR | 1K words |
| 2025-05-08 | 0000056701-25-000015 | EDGAR | 1K words |
| 2025-05-08 | 0000898432-25-000322 | EDGAR | 1K words |
| 2025-01-30 | 0000056701-25-000006 | EDGAR | 1K words |
| 2024-10-31 | 0000056701-24-000041 | EDGAR | 1K words |
| 2024-10-21 | 0000056701-24-000036 | EDGAR | 1K words |
323 total filings indexed. 291 additional filings (S-1, DEF 14A, etc.) View all (JSON) · SEC EDGAR
| CIK | 0000056701 |
| Ticker | KOSS |
| Exchange | Nasdaq |
| SIC | 3651: Household Audio & Video Equipment |
| Incorporated | DE |
| Headquarters | Milwaukee, Wisconsin |
| Website | https://www.koss.com |
| Listed | 1986-03-26 |
This is a static snapshot. For live, structured JSON with cryptographic provenance chain:
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