KOSS Insider Trading

Insider Ownership Percentage: 44.26%
Insider Buying (Last 12 Months): $12,400.00
Insider Selling (Last 12 Months): $147,253.54

Koss Insider Trading History Chart

This chart shows the insider buying and selling history at Koss by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Koss Share Price & Price History

Current Price: $4.85
Price Change: Price Decrease of -0.09 (-1.82%)
As of 12/4/2025 05:00 PM ET

This chart shows the closing price history over time for KOSS up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Koss Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
12/2/2025Lenore LillieDirectorBuy2,500$4.96$12,400.002,500View SEC Filing Icon  
6/13/2025Michael J. Koss, Jr.VPSell24,643$4.78$117,793.5426,000View SEC Filing Icon  
6/12/2025Michael J. Koss, Jr.VPSell6,000$4.91$29,460.0026,000View SEC Filing Icon  
5/20/2024John C. Koss, Jr.VPSell25,000$5.25$131,250.00196,028View SEC Filing Icon  
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SEC Filings (Institutional Ownership Changes) for Koss (NASDAQ:KOSS)

6.21% of Koss stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at KOSS by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Koss Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
11/17/2025Susquehanna International Group LLP14,558$74K0.0%N/A0.154%Search for SEC Filing on Google Icon
11/14/2025Two Sigma Investments LP13,355$68K0.0%N/A0.141%Search for SEC Filing on Google Icon
11/12/2025Dimensional Fund Advisors LP23,342$0.12M0.0%+118.5%0.247%Search for SEC Filing on Google Icon
8/8/2025Geode Capital Management LLC58,328$0.30M0.0%-3.8%0.622%Search for SEC Filing on Google Icon
2/17/2025Citadel Advisors LLC28,725$0.21M0.0%N/A0.307%Search for SEC Filing on Google Icon
2/14/2025Jane Street Group LLC16,982$0.13M0.0%N/A0.182%Search for SEC Filing on Google Icon
2/13/2025Marshall Wace LLP60,580$0.45M0.0%N/A0.648%Search for SEC Filing on Google Icon
2/11/2025Virtu Financial LLC12,399$92K0.0%N/A0.133%Search for SEC Filing on Google Icon
11/16/2024Geode Capital Management LLC61,211$0.45M0.0%+2.9%0.655%Search for SEC Filing on Google Icon
8/9/2024Dimensional Fund Advisors LP145,958$0.65M0.0%+7.2%1.577%Search for SEC Filing on Google Icon
2/9/2022Dimensional Fund Advisors LP154,546$1.65M0.0%+5.4%1.691%Search for SEC Filing on Google Icon
2/8/2022CIBC Private Wealth Group LLC546,528$5.84M0.0%N/A5.981%Search for SEC Filing on Google Icon
11/15/2021Dimensional Fund Advisors LP146,611$2.40M0.0%+5.4%1.604%Search for SEC Filing on Google Icon
8/17/2021Millennium Management LLC56,306$1.31M0.0%+140.1%0.661%Search for SEC Filing on Google Icon
8/16/2021State Street Corp26,574$0.62M0.0%N/A0.312%Search for SEC Filing on Google Icon
Data available starting January 2016

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Koss logo
Koss Corporation, together with its subsidiaries, engages in the design, manufacture, and sale of stereo headphones and related accessories in the United States, the Czech Republic, Sweden, Canada, Korea, Republic of Belgium, Malaysia, and internationally. It offers high-fidelity headphones, wireless bluetooth headphones, wireless bluetooth speakers, computer headsets, telecommunications headsets, and active noise canceling headphones. The company sells its products through distributors, international distributors, audio specialty stores, the internet, national retailers, grocery stores, electronics retailers, and prisons under the Koss name, as well as private label. It sells its products to distributors for resale to school systems, as well as directly to other manufacturers. The company markets through domestic retail outlets and numerous retailers. It exports its products. Koss Corporation was founded in 1953 and is headquartered in Milwaukee, Wisconsin.
Read More on Koss

Today's Range

Now: $4.85
Low: $4.80
High: $4.93

50 Day Range

MA: $4.93
Low: $4.50
High: $5.48

52 Week Range

Now: $4.85
Low: $4.00
High: $8.59

Volume

17,815 shs

Average Volume

24,429 shs

Market Capitalization

$45.88 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

N/A

Who are the company insiders with the largest holdings of Koss?

Koss' top insider investors include:
  1. John C Koss Jr (VP)
  2. Michael J Koss Jr (VP)
Learn More about top insider investors at Koss.

Who are the major institutional investors of Koss?

Koss' top institutional shareholders include:
  1. Dimensional Fund Advisors LP — 0.25%
  2. Susquehanna International Group LLP — 0.15%
  3. Two Sigma Investments LP — 0.14%
Learn More about top institutional investors of Koss stock.

Which institutional investors are buying Koss stock?

In the last quarter, KOSS stock was acquired by institutional investors including:
  1. Susquehanna International Group LLP
  2. Two Sigma Investments LP
  3. Dimensional Fund Advisors LP