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Buy Day today: Good (62) Broad market participation · no major macro event
KOSS

Koss Corporation

Technology · Consumer Electronics

3.50$ +5.1% vs. previous close Closing price · As of: Sep 17, 2026

Ownership

Ownership Structure

Who owns Koss Corporation (KOSS)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 58.2% of the shares are freely tradable; institutional investors hold 5.1%.

Institutional ownership ?Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings. 5.1%
Insiders ?Share of the stock held by the executives, founders and major shareholders of the company itself. 43.5%
Float ?Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders. 58.2%
Short % of float ?Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices. 3.4%
Shares Outstanding ?Total number of shares issued. Price times share count gives market cap. 10Mio.

Largest Shareholders

Institutions

Institutions KOSS
Name Stake (%) Shares Change (%) Date
Vanguard Capital Management, LLC 2.00 189,607 +0.0 03/31/2026
BlackRock Inc 0.95 89,601 +1.4 03/31/2026
Geode Capital Management, LLC 0.59 55,913 -7.3 03/31/2026
Citadel Advisors Llc 0.35 33,058 +0.0 06/30/2026
Vanguard Fiduciary Trust Co 0.33 31,334 +0.0 03/31/2026
Dimensional Fund Advisors, Inc. 0.26 24,433 +13.1 06/30/2026

Funds

Funds KOSS
Name Stake (%) Shares Change (%) Date
Vanguard MStar Total Stk Mkt Idx Invest 1.29 122,145 +0.0 07/31/2026
Vanguard Institutional Extnd Mkt Idx Tr 0.71 67,462 +0.0 07/31/2026
Fidelity Extended Market Index 0.28 26,561 -0.2 07/31/2026
Blackrock Extended Mkt Fund CF 0.25 23,443 +0.0 05/31/2026

Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.

Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)

Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.

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