| $164M | ||
| $143M | ||
| $143M | ||
| $94M | ||
| $60M | ||
| $35M |
Buys | $12,400 | 1 | 14 |
Sells | $617,284 | 6 | 86 |
| LILLIE LENORE | director | 1 | $12,400 | 0 | $0 | $12,400 |
| Koss Michael J Jr | VP - Marketing & Product | 0 | $0 | 2 | $147,254 | $-147,254 |
| KOSS JOHN C JR | Vice President - Sales | 0 | $0 | 4 | $470,030 | $-470,030 |
Koss Corporation, together with its subsidiaries, designs, manufactures, and sells stereo headphones and related accessories in the United States, the Czech Republic, Sweden, Canada, the Russian Federation, Japan, Malaysia, and internationally. It offers high-fidelity headphones, wireless Bluetooth headphones, wireless Bluetooth speakers, computer headsets, telecommunications headsets, active noise canceling headphones, and compact disc recordings under the Koss Classics label. The company sells its products through distributors, international distributors, audio specialty stores, the internet, national retailers, grocery stores, electronics retailers, military exchanges, and prisons under the Koss name, as well as private label. It also sells its products to distributors for resale to school systems, as well as directly to other manufacturers. The company also exports its products. Koss Corporation was founded in 1953 and is headquartered in Milwaukee, Wisconsin.
Over the last 12 months, insiders at Koss Corporation have bought $12,400 and sold $617,284 worth of Koss Corporation stock.
On average, over the past 5 years, insiders at Koss Corporation have bought $76,284 and sold $24.88M worth of stock each year.
Highest buying activity among insiders over the last 12 months: LILLIE LENORE (director) — $12,400.
The last purchase of 2,500 shares for transaction amount of $12,400 was made by LILLIE LENORE (director) on 2025‑12‑02.
| 2025-12-02 | LILLIE LENORE | director | 2,500 0.0268% | $4.96 | $12,400 | -1.51% | ||
| 2025-06-13 | Sale | Koss Michael J Jr | VP - Marketing & Product | 24,643 0.2676% | $4.78 | $117,794 | +11.28% | |
| 2025-06-12 | Sale | KOSS JOHN C JR | Vice President - Sales | 1,500 0.0165% | $5.02 | $7,530 | +7.29% | |
| 2025-06-12 | Sale | Koss Michael J Jr | VP - Marketing & Product | 6,000 0.0645% | $4.91 | $29,460 | +7.29% | |
| 2025-06-11 | Sale | KOSS JOHN C JR | Vice President - Sales | 23,500 0.2556% | $5.65 | $132,775 | -5.78% | |
| 2025-06-10 | Sale | KOSS JOHN C JR | Vice President - Sales | 25,000 0.2671% | $5.80 | $145,000 | -9.76% | |
| 2024-12-12 | Sale | KOSS JOHN C JR | Vice President - Sales | 25,000 0.2672% | $7.39 | $184,725 | -27.41% | |
| 2024-05-20 | Sale | KOSS JOHN C JR | Vice President - Sales | 25,000 0.2681% | $5.25 | $131,250 | +28.54% | |
| 2022-06-02 | Sweasy William Jesse | 2,847 0.0315% | $7.30 | $20,783 | -14.29% | |||
| 2022-06-01 | Sweasy William Jesse | 17,153 0.1815% | $6.96 | $119,385 | -13.91% | |||
| 2021-11-02 | Sale | Smith David Donnan | Chief Financial Officer | 10,000 0.1059% | $15.54 | $155,400 | -52.15% | |
| 2021-09-15 | Sale | Koss Michael J Jr | VP - Marketing & Product | 24,089 0.2742% | $17.74 | $427,339 | -52.61% | |
| 2021-09-01 | Sale | KOSS MICHAEL J | President and CEO | 780 0.0091% | $18.75 | $14,625 | -52.64% | |
| 2021-08-31 | Sale | KOSS MICHAEL J | President and CEO | 9,220 0.1052% | $18.51 | $170,662 | -52.86% | |
| 2021-08-31 | Sale | KOSS JOHN C JR | Vice President - Sales | 10,000 0.1133% | $18.38 | $183,800 | -52.86% | |
| 2021-08-30 | Sale | KOSS MICHAEL J | President and CEO | 5,400 0.062% | $18.28 | $98,712 | -51.80% | |
| 2021-08-30 | Sale | KOSS JOHN C JR | Vice President - Sales | 5,000 0.0573% | $18.26 | $91,300 | -51.80% | |
| 2021-08-27 | Sale | KOSS MICHAEL J | President and CEO | 4,600 0.0522% | $18.06 | $83,076 | -51.53% | |
| 2021-08-27 | Sale | KOSS JOHN C JR | Vice President - Sales | 10,000 0.1135% | $18.06 | $180,600 | -51.53% | |
| 2021-08-26 | Sale | KOSS MICHAEL J | President and CEO | 8,500 0.0993% | $18.33 | $155,805 | -50.79% |
| KOSS JOHN C JR | Vice President - Sales | 196028 2.0848% | $944,854.96 | 0 | 28 | |
| Koss Michael J Jr | VP - Marketing & Product | 26000 0.2765% | $125,320.00 | 0 | 9 | |
| LILLIE LENORE | director | 2500 0.0266% | $12,050.00 | 1 | 9 | |
| KOSS MICHAEL J | President and CEO | 774907 8.2412% | $3.74M | 11 | 18 | +34.78% |
| Nancy Koss 2012 Trust, Dated 12/20/12 | 10 percent owner | 757949 8.0608% | $3.65M | 0 | 2 | |
| STOLLENWERK JOHN J | director | 32562 0.3463% | $156,948.84 | 16 | 0 | +9.27% |
| Sweasy William Jesse | 20000 0.2127% | $96,400.00 | 5 | 1 | +137.67% | |
| GANTZ CHRISTOPHER | VP, Communication Products | 10900 0.1159% | $52,538.00 | 0 | 1 | |
| KOSS JOHN C | director | 4000 0.0425% | $19,280.00 | 20 | 1 | <0.0001% |
| MCCURDY JILL | VP - Product Development | 0 0% | $0 | 0 | 2 | |
| SACHDEVA SUJATA | VP-Finance, Secretary | 0 0% | $0 | 0 | 31 | |
| Nixon Theodore | director | 0 0% | $0 | 20 | 2 | +22.19% |
| Smith David Donnan | Chief Financial Officer | 0 0% | $0 | 7 | 8 | +8.32% |
| Doerr Thomas L. | director | 0 0% | $0 | 0 | 2 | |
| Leveen Steven A | director | 0 0% | $0 | 2 | 1 | <0.0001% |
$19,659,565 | 100 | -4.24% | $9.12M | |
$1,134,609 | 62 | 21.11% | $210.12M | |
Koss Corporation (KOSS) | $822,926 | 32 | 30.41% | $45.32M |
$4,136,736 | 27 | 3.82% | $43.31M | |
$4,860,119 | 9 | 24.05% | $4,119.35B | |
$721,552 | 7 | 11.21% | $287.44M | |
$4,010,673 | 2 | -24.92% | $2.31B |
| Increased Positions | 9 | +37.5% | 65,513 | +1.94% |
| Decreased Positions | 8 | -33.33% | 3M | -85.88% |
| New Positions | 5 | New | 46,570 | New |
| Sold Out Positions | 2 | Sold Out | 3M | Sold Out |
| Total Postitions | 25 | +4.17% | 541,958 | -83.93% |
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