Koss's top three insider shareholders as of March 23, 2026 are Michael J Koss (President And Ceo, 774.91K shares), John C Jr Koss (Vice President Sales, 196.03K shares), Michael J Jr Koss (Vp Marketing Product, 26.00K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Michael J Koss | President And Ceo | 774,907 | 0 | 02 Sep, 2021 |
| John C Jr Koss | Vice President Sales | 196,028 | 0 | 17 Jun, 2025 |
| Michael J Jr Koss | Vp Marketing Product | 26,000 | 0 | 17 Jun, 2025 |
| William Jesse Sweasy | 20,000 | 0 | 03 Jun, 2022 | |
| Lenore Lillie | 2,500 | 0 | 04 Dec, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 17 Feb, 2026 | Michael J Koss | Common Stock | D | 12,000 | $0.00 | 0 | I | J |
| 02 Dec, 2025 | Lenore Lillie | Common Stock | A | 2,500 | $4.96 | 2,500 | D | P |
| 10 Jun, 2025 | John C Jr Koss | Common Stock | A | 25,000 | $1.90 | 221,028 | D | M |
| 12 Jun, 2025 | Michael J Jr Koss | Common Stock | A | 6,000 | $1.90 | 32,000 | D | M |
| 12 Jun, 2025 | Michael J Jr Koss | Common Stock | D | 6,000 | $4.91 | 26,000 | D | S |
| 10 Jun, 2025 | John C Jr Koss | Common Stock | D | 25,000 | $5.80 | 196,028 | D | S |
| 13 Jun, 2025 | Michael J Jr Koss | Common Stock | A | 24,643 | $1.90 | 50,643 | D | M |
| 11 Jun, 2025 | John C Jr Koss | Common Stock | A | 23,500 | $1.90 | 219,528 | D | M |
| 13 Jun, 2025 | Michael J Jr Koss | Common Stock | D | 24,643 | $4.78 | 26,000 | D | S |
| 11 Jun, 2025 | John C Jr Koss | Common Stock | D | 23,500 | $5.65 | 196,028 | D | S |
| 12 Jun, 2025 | John C Jr Koss | Common Stock | A | 1,500 | $1.90 | 197,528 | D | M |
| 12 Jun, 2025 | Michael J Jr Koss | Stock Option (Right to Buy) | D | 6,000 | $0.00 | 59,000 | D | M |
| 12 Jun, 2025 | John C Jr Koss | Common Stock | D | 1,500 | $5.02 | 196,028 | D | S |
| 13 Jun, 2025 | Michael J Jr Koss | Stock Option (Right to Buy) | D | 24,643 | $0.00 | 34,357 | D | M |
| 10 Jun, 2025 | John C Jr Koss | Stock Option (Right to Buy) | D | 25,000 | $0.00 | 25,000 | D | M |
| 11 Jun, 2025 | John C Jr Koss | Stock Option (Right to Buy) | D | 23,500 | $0.00 | 1,500 | D | M |
| 12 Jun, 2025 | John C Jr Koss | Stock Option (Right to Buy) | D | 1,500 | $0.00 | 0 | D | M |
| 12 Dec, 2024 | John C Jr Koss | Common Stock | A | 25,000 | $1.90 | 221,028 | D | M |
| 12 Dec, 2024 | John C Jr Koss | Common Stock | D | 25,000 | $7.39 | 196,028 | D | S |
| 12 Dec, 2024 | John C Jr Koss | Stock Option (Right to Buy) | D | 25,000 | $0.00 | 50,000 | D | M |