John C. Koss Jr.
Known title: Vice President - SalesCIK: 0001217521
Associated companies
Transaction History
| KOSS | ▲ Buy | Option Exercise | 1,500 | $3K | 6/12/2025 | View on chart |
| KOSS | ▼ Sell | Open Market | 1,500 | $8K | 6/12/2025 | View on chart |
| KOSS | ▲ Buy | Option Exercise | 23,500 | $45K | 6/11/2025 | View on chart |
| KOSS | ▼ Sell | Open Market | 23,500 | $133K | 6/11/2025 | View on chart |
| KOSS | ▲ Buy | Option Exercise | 25,000 | $48K | 6/10/2025 | View on chart |
| KOSS | ▼ Sell | Open Market | 25,000 | $145K | 6/10/2025 | View on chart |
| KOSS | ▲ Buy | Option Exercise | 25,000 | $48K | 12/12/2024 | View on chart |
| KOSS | ▼ Sell | Open Market | 25,000 | $185K | 12/12/2024 | View on chart |
| KOSS | ▲ Buy | Option Exercise | 25,000 | $54K | 5/20/2024 | View on chart |
| KOSS | ▼ Sell | Open Market | 25,000 | $131K | 5/20/2024 | View on chart |
| KOSS | ▼ Sell | Other | 1,000,885 | $0 | 3/23/2022 | View on chart |
| KOSS | ▼ Sell | Other | 983,800 | $0 | 3/23/2022 | View on chart |
| KOSS | ▼ Sell | Other | 707,949 | $0 | 3/23/2022 | View on chart |
| KOSS | ▲ Buy | Option Exercise | 10,000 | $19K | 8/31/2021 | View on chart |
| KOSS | ▼ Sell | Open Market | 10,000 | $184K | 8/31/2021 | View on chart |
| KOSS | ▲ Buy | Option Exercise | 5,000 | $10K | 8/30/2021 | View on chart |
| KOSS | ▼ Sell | Open Market | 5,000 | $91K | 8/30/2021 | View on chart |
| KOSS | ▲ Buy | Option Exercise | 10,000 | $19K | 8/27/2021 | View on chart |
| KOSS | ▼ Sell | Open Market | 10,000 | $181K | 8/27/2021 | View on chart |
| KOSS | ▲ Buy | Option Exercise | 25,000 | $73K | 8/24/2021 | View on chart |
| KOSS | ▼ Sell | Open Market | 13,737 | $251K | 8/24/2021 | View on chart |
| KOSS | ▼ Sell | Open Market | 25,000 | $501K | 8/24/2021 | View on chart |
| KOSS | ▲ Buy | Option Exercise | 25,000 | $49K | 8/24/2021 | View on chart |
| KOSS | ▲ Buy | Option Exercise | 25,000 | $54K | 8/24/2021 | View on chart |
| KOSS | ▼ Sell | Open Market | 36,263 | $631K | 8/24/2021 | View on chart |
| KOSS | ▼ Sell | Open Market | 5,000 | $121K | 6/15/2021 | View on chart |
| KOSS | ▼ Sell | Open Market | 3,000 | $76K | 6/14/2021 | View on chart |
| KOSS | ▼ Sell | Open Market | 5,000 | $135K | 6/9/2021 | View on chart |
| KOSS | ▼ Sell | Open Market | 8,133 | $244K | 6/8/2021 | View on chart |
| KOSS | ▼ Sell | Open Market | 5,000 | $157K | 6/3/2021 | View on chart |
| KOSS | ▼ Sell | Open Market | 5,000 | $150K | 6/3/2021 | View on chart |
| KOSS | ▼ Sell | Open Market | 5,000 | $163K | 6/3/2021 | View on chart |
| KOSS | ▼ Sell | Open Market | 5,000 | $177K | 6/3/2021 | View on chart |
| KOSS | ▼ Sell | Open Market | 5,000 | $140K | 6/2/2021 | View on chart |
| KOSS | ▼ Sell | Open Market | 5,000 | $125K | 6/1/2021 | View on chart |
| KOSS | ▼ Sell | Open Market | 10,000 | $235K | 5/28/2021 | View on chart |