Institutional HoldersBeta
Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.
Share classes (cover page of the 10-K filed 2026-08-28, as of 2026-08-24)
| Class | Listed | Shares outstanding | Held by 13F filers | % of class | Holders | CUSIP |
|---|---|---|---|---|---|---|
| Common stock | KOSS · NASDAQ | 9,466,438 | 498,994 | 5.3% | 23 | 500692108 |
Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.
Top holders (23 of 23 · 500692108)
change vs 2026-03-31Exited since 2026-03-31 (3 filers; largest 3 shown)
| XTX Topco Ltd | −10,786 |
| PNC FINANCIAL SERVICES GROUP, INC. | −7,000 |
| CITIGROUP INC | −1 |
Large holders from 13D/13G (latest per reporting person, last 2 years)
Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.
No structured 13D/13G filings (XML filings began Dec 2024).
Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.