Koss Corporation designs, manufactures, and sells stereo headphones and related accessory products. Founded in Delaware in 1971, the company sells through U.S. and international distributors, national retailers, grocery stores, electronics retailers, prisons, school systems, and directly to OEM manufacturers. Approximately 84% of fiscal year 2025 sales came from music-listening stereo headphones, with the remaining 16% from communications, education, metal detector, and OEM applications.
Q2 FY2026 — expected 2026-08-26
| Filed | Period | Accession | Source | Full Text |
|---|---|---|---|---|
| 2025-08-29 | 2025-06-30 | 0000056701-25-000044 | EDGAR | 32K words |
| 2024-08-30 | 2024-06-30 | 0000056701-24-000028 | EDGAR | — |
| 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 | — |
| 2016-08-25 | 2016-06-30 | 0000056701-16-000084 | 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 | — |
| 2025-05-09 | 2025-03-31 | 0000056701-25-000017 | EDGAR | — |
| 2025-01-31 | 2024-12-31 | 0000056701-25-000008 | EDGAR | — |
| 2024-11-01 | 2024-09-30 | 0000056701-24-000043 | EDGAR | — |
| 2024-05-10 | 2024-03-31 | 0000056701-24-000014 | EDGAR | — |
| 2024-02-02 | 2023-12-31 | 0000056701-24-000008 | EDGAR | — |
| 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 |
|---|---|---|---|
| 2026-01-29 | 0000056701-26-000006 | EDGAR | 2K words |
| 2025-10-30 | 0000056701-25-000057 | EDGAR | — |
| 2025-10-20 | 0000056701-25-000052 | EDGAR | — |
| 2025-08-28 | 0000056701-25-000042 | EDGAR | — |
| 2025-05-08 | 0000056701-25-000015 | EDGAR | — |
| 2025-05-08 | 0000898432-25-000322 | EDGAR | — |
| 2025-01-30 | 0000056701-25-000006 | EDGAR | — |
| 2024-10-31 | 0000056701-24-000041 | EDGAR | — |
| 2024-10-21 | 0000056701-24-000036 | EDGAR | — |
| 2024-08-29 | 0000056701-24-000026 | EDGAR | — |
321 total filings indexed. 289 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 |
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