John C. Koss Jr. is President & VP at KOSS CORP (KOSS). They have made 33 open-market trades across 1 company since 2006, most recently 2025-06-12.
16 open-market purchases totalling $239K since 2011, against 17 sales. Across 16 scored buys the stock is up 0.9% at ninety days, and 0.6 points ahead of the S&P over the same stretch.
16 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| KOSS | 196,028 | $727K |
Shares reported on the most recent Form 4, priced at the 2025-06-17 close.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 0% | 100% | 100% |
| Avg Move | -8.3% | +0.9% | +0.9% |
| Alpha | -2.5% | +0.6% | +0.6% |
| Scored | 16 | 16 | 16 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| KOSS | SELL | 2025-06-10 | 2025-06-17 | $5.71 | $285K | +5.4% | +9.9% | +19.7% |
| KOSS | SELL | 2024-12-12 | 2024-12-16 | $7.39 | $185K | +8.0% | -10.5% | -28.7% |
| KOSS | SELL | 2024-05-20 | 2024-05-21 | $5.25 | $131K | -8.2% | -23.7% | +66.0% |
| KOSS | SELL | 2021-08-31 | 2021-09-02 | $18.38 | $184K | -5.4% | -13.5% | -28.9% |
| KOSS | SELL | 2021-08-27 | 2021-08-31 | $18.16 | $363K | +1.1% | -11.9% | -24.4% |
| KOSS | SELL | 2021-08-24 | 2021-08-26 | $18.45 | $2.8M | +7.9% | -3.9% | -16.6% |
| KOSS | SELL | 2021-06-14 | 2021-06-16 | $24.59 | $197K | +6.4% | -20.4% | -21.8% |
| KOSS | SELL | 2021-06-08 | 2021-06-10 | $28.86 | $379K | -2.7% | -16.9% | -23.2% |
| KOSS | SELL | 2021-06-01 | 2021-06-03 | $30.37 | $911K | -19.4% | -31.6% | -40.0% |
| KOSS | SELL | 2021-05-28 | 2021-06-01 | $23.50 | $235K | -3.9% | -16.8% | -31.5% |
| KOSS | SELL | 2021-03-10 | 2021-03-12 | $28.57 | $829K | -45.7% | -36.9% | -18.6% |
| KOSS | SELL | 2021-02-25 | 2021-02-26 | $26.48 | $1.9M | +80.0% | +26.0% | +35.7% |
| KOSS | SELL | 2021-02-03 | 2021-02-05 | $24.96 | $374K | -27.3% | -3.9% | -14.9% |
| KOSS | SELL | 2021-02-01 | 2021-02-03 | $38.52 | $23.6M | -39.6% | -38.4% | -25.2% |
| KOSS | BUY | 2013-05-29 | 2013-05-31 | $5.00 | $20K | -8.3% | +0.9% | +0.9% |
| KOSS | BUY | 2011-12-14 | 2011-12-15 | $5.20 | $16K | -8.3% | +0.9% | +0.9% |
| KOSS | BUY | 2011-12-09 | 2011-12-13 | $5.17 | $12K | -8.3% | +0.9% | +0.9% |
| KOSS | BUY | 2011-12-02 | 2011-12-06 | $5.12 | $14K | -8.3% | +0.9% | +0.9% |
| KOSS | BUY | 2011-11-29 | 2011-12-01 | $5.10 | $32K | -8.3% | +0.9% | +0.9% |
| KOSS | BUY | 2011-11-18 | 2011-11-22 | $5.10 | $5K | -8.3% | +0.9% | +0.9% |
| KOSS | BUY | 2011-11-16 | 2011-11-18 | $5.10 | $1K | -8.3% | +0.9% | +0.9% |
| KOSS | BUY | 2011-11-11 | 2011-11-15 | $5.10 | $255 | -8.3% | +0.9% | +0.9% |
| KOSS | BUY | 2011-11-07 | 2011-11-09 | $5.10 | $5K | -8.3% | +0.9% | +0.9% |
| KOSS | BUY | 2011-11-01 | 2011-11-03 | $5.08 | $10K | -8.3% | +0.9% | +0.9% |
| KOSS | BUY | 2011-03-16 | 2011-03-16 | $7.25 | $29K | -8.3% | +0.9% | +0.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.