KossKOSS
13F holders, Q3 2025 (September 30)23holders +3
5new positions
2sold out
$5.08avg. 13F price*
At the end of Q3 2025, 23 institutions reported holding Koss Corp. (KOSS) in their 13F filings, up 3 from Q2 2025. 5 opened new positions and 2 sold out. The largest holders were Vanguard Group Inc. ($1.2M), BlackRock, Inc. ($446K) and Geode Capital Management, LLC ($297K).
- Company
- Koss Corp.
- CUSIP
- 500692108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 5 | $237K |
| Exits | 2 | $14.8M |
All 13F filers, Q2 2025 → Q3 2025: 65,513 shares bought and 2,896,623 shares sold, net −2,831,110 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 23 holders
| Vanguard Group Inc. | 0.00% | Reduce -0.3% | 245,710 | $1.2M |
| BlackRock, Inc. | 0.00% | Add +0.4% | 87,853 | $446K |
| Geode Capital Management, LLC | 0.00% | Add +0.2% | 58,439 | $297K |
| Dimensional Fund Advisors LP | 0.00% | Add +118.5% | 23,342 | $119K |
| State Street Corp. | 0.00% | No change | 17,974 | $91K |
| Goldman Sachs Group Inc. | 0.00% | New | 17,006 | $86K |
| Susquehanna International Group, LLP | 0.00% | New | 14,558 | $74K |
| Northern Trust Corp. | 0.00% | Reduce -6.0% | 14,422 | $73K |
| UBS Group AG | 0.00% | Add +75.6% | 13,607 | $69K |
| Two Sigma Investments, LP | 0.00% | New | 13,355 | $68K |
| James Investment Research, Inc. | 0.01% | No change | 10,575 | $54K |
| NewEdge Advisors, LLC | 0.00% | No change | 10,575 | $54K |
| PNC Financial Services Group, Inc. | 0.00% | No change | 7,000 | $36K |
| Morgan Stanley | 0.00% | Reduce -34.4% | 3,080 | $16K |
| Activest Wealth Management | 0.00% | No change | 1,000 | $5K |
| Royal Bank of Canada | 0.00% | Reduce -29.4% | 1,019 | $5K |
| Citigroup Inc. | 0.00% | New | 978 | $5K |
| Tower Research Capital LLC (TRC) | 0.00% | New | 673 | $3K |
| Bank of America Corp. | 0.00% | Reduce -13.7% | 302 | $2K |
| Creative Financial Designs Inc. | 0.00% | No change | 300 | $2K |
| SBI Securities Co., Ltd. | 0.00% | Reduce -0.8% | 120 | $610 |
| Osaic Holdings, Inc. | 0.00% | No change | 50 | $310 |
| Crewe Advisors LLC | 0.00% | No change | 20 | $102 |
"% of holder's portfolio" is KOSS's weight in each manager's 13F, not the share of Koss Corp. the manager owns.