KOSS's three largest insider shareholders as of August 04, 2026 are John C Jr Koss (Vice President Sales, 196.03K shares), Michael J Jr Koss (Vp Marketing Product, 26.00K shares), William Jesse Sweasy (Director, 20.00K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | John C Jr Koss | Vice President Sales | 196,028 | 0 | 196,028 | 80.2% | 17 Jun, 2025 |
| 2 | Michael J Jr Koss | Vp Marketing Product | 26,000 | 0 | 26,000 | 10.6% | 17 Jun, 2025 |
| 3 | William Jesse Sweasy | Director | 20,000 | 0 | 20,000 | 8.2% | 03 Jun, 2022 |
| 4 | Lenore Lillie | Vp Operations | 2,500 | 0 | 2,500 | 1.0% | 04 Dec, 2025 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 02 Dec, 2025 | Lenore Lillie | Director | Acquired P | 2,500 | $4.96 | $12.40K | 2,500 | Direct |
| 02 Dec, 2025 | Lenore Lillie | Director | Acquired P | 2,500 | $4.96 | $12.40K | 2,500 | Direct |
| 02 Dec, 2025 | Lenore Lillie | Director | Acquired P | 2,500 | $4.96 | $12.40K | 2,500 | Direct |
| 12 Jun, 2025 | Michael J Jr Koss | Vp Marketing Product | Acquired M | 6,000 | $1.90 | $11.40K | 32,000 | Direct |
| 12 Jun, 2025 | Michael J Jr Koss | Vp Marketing Product | Acquired M | 6,000 | $1.90 | $11.40K | 32,000 | Direct |
| 10 Jun, 2025 | John C Jr Koss | Vice President Sales | Acquired M | 25,000 | $1.90 | $47.50K | 221,028 | Direct |
| 12 Jun, 2025 | Michael J Jr Koss | Vp Marketing Product | Acquired M | 6,000 | $1.90 | $11.40K | 32,000 | Direct |
| 10 Jun, 2025 | John C Jr Koss | Vice President Sales | Acquired M | 25,000 | $1.90 | $47.50K | 221,028 | Direct |
| 10 Jun, 2025 | John C Jr Koss | Vice President Sales | Acquired M | 25,000 | $1.90 | $47.50K | 221,028 | Direct |
| 12 Jun, 2025 | Michael J Jr Koss | Vp Marketing Product | Disposed S | 6,000 | $4.91 | $29.46K | 26,000 | Direct |
| 10 Jun, 2025 | John C Jr Koss | Vice President Sales | Disposed S | 25,000 | $5.80 | $145.00K | 196,028 | Direct |
| 10 Jun, 2025 | John C Jr Koss | Vice President Sales | Disposed S | 25,000 | $5.80 | $145.00K | 196,028 | Direct |
| 10 Jun, 2025 | John C Jr Koss | Vice President Sales | Disposed S | 25,000 | $5.80 | $145.00K | 196,028 | Direct |
| 12 Jun, 2025 | Michael J Jr Koss | Vp Marketing Product | Disposed S | 6,000 | $4.91 | $29.46K | 26,000 | Direct |
| 12 Jun, 2025 | Michael J Jr Koss | Vp Marketing Product | Disposed S | 6,000 | $4.91 | $29.46K | 26,000 | Direct |
| 11 Jun, 2025 | John C Jr Koss | Vice President Sales | Acquired M | 23,500 | $1.90 | $44.65K | 219,528 | Direct |
| 13 Jun, 2025 | Michael J Jr Koss | Vp Marketing Product | Acquired M | 24,643 | $1.90 | $46.82K | 50,643 | Direct |
| 11 Jun, 2025 | John C Jr Koss | Vice President Sales | Acquired M | 23,500 | $1.90 | $44.65K | 219,528 | Direct |
| 11 Jun, 2025 | John C Jr Koss | Vice President Sales | Acquired M | 23,500 | $1.90 | $44.65K | 219,528 | Direct |
| 13 Jun, 2025 | Michael J Jr Koss | Vp Marketing Product | Acquired M | 24,643 | $1.90 | $46.82K | 50,643 | Direct |