John C. Koss Jr.

Companies

• Koss CorporationVice President - Sales Jul 28, 2003 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Koss Corporation KOSS735,354 shares²$2.8M at $3.74Jun 17, 2025

As of each latest filing. The line shows shares held over time.

Recent filings

• Jun 12, 2025Sold 1,500 shares at $5.02 of Koss Corporation²
• Jun 12, 2025Exercised options 1,500 shares at $1.90 of Koss Corporation²
• Jun 11, 2025Sold 23,500 shares at $5.65 of Koss Corporation²
• Jun 11, 2025Exercised options 23,500 shares at $1.90 of Koss Corporation²
• Jun 10, 2025Sold 25,000 shares at $5.80 of Koss Corporation²
• Jun 10, 2025Exercised options 25,000 shares at $1.90 of Koss Corporation²
• Dec 12, 2024Sold 25,000 shares at $7.39 of Koss Corporation³
• Dec 12, 2024Exercised options 25,000 shares at $1.90 of Koss Corporation³
• May 20, 2024Sold 25,000 shares at $5.25 of Koss Corporation⁴
• May 20, 2024Exercised options 25,000 shares at $2.17 of Koss Corporation⁴
• Mar 23, 2022Z 983,800 shares of Koss Corporation⁵
• Mar 23, 2022Z 707,949 shares of Koss Corporation⁵
• Mar 23, 2022Z 1,000,885 shares of Koss Corporation⁵
• Aug 31, 2021Sold 10,000 shares at $18.38 of Koss Corporation⁶
• Aug 31, 2021Exercised options 10,000 shares at $1.90 of Koss Corporation⁶
• Aug 30, 2021Sold 5,000 shares at $18.26 of Koss Corporation⁷
• Aug 30, 2021Exercised options 5,000 shares at $1.90 of Koss Corporation⁷
• Aug 27, 2021Sold 10,000 shares at $18.06 of Koss Corporation⁷
• Aug 27, 2021Exercised options 10,000 shares at $1.90 of Koss Corporation⁷
• Aug 24, 2021Sold 25,000 shares at $20.06 of Koss Corporation⁸
• Aug 24, 2021Sold 13,737 shares at $18.27 of Koss Corporation⁸
• Aug 24, 2021Sold 36,263 shares at $17.40 of Koss Corporation⁸
• Aug 24, 2021Exercised options 25,000 shares at $2.17 of Koss Corporation⁸
• Aug 24, 2021Exercised options 25,000 shares at $2.92 of Koss Corporation⁸
• Aug 24, 2021Exercised options 25,000 shares at $1.95 of Koss Corporation⁸