Only open-market buys / sells (codes P/S) are a conviction signal; grants, option exercises, tax-withholding, and gifts are compensation mechanics, shown but greyed. The trailing 12-month tallies run to today but the store covers filings through 2026-06-30 only (SEC bulk data sets publish quarterly), so recent activity may be absent.
| Date | Insider | Role | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-02-17 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Other | 12,000 | — | — |
| 2025-12-02 | LILLIE LENORE | Director | +Buy | 2,500 | $4.96 | $12,400 |
| 2025-06-13 | Koss Michael J Jr | Officer | +Exercise | 24,643 | $1.90 | $46,822 |
| 2025-06-13 | Koss Michael J Jr | Officer | −Sell | 24,643 | $4.78 | $117,794 |
| 2025-06-12 | Koss Michael J Jr | Officer | +Exercise | 6,000 | $1.90 | $11,400 |
| 2025-06-12 | Koss Michael J Jr | Officer | −Sell | 6,000 | $4.91 | $29,460 |
| 2025-06-12 | KOSS JOHN C JR | Officer | −Sell | 1,500 | $5.02 | $7,530 |
| 2025-06-12 | KOSS JOHN C JR | Officer | +Exercise | 1,500 | $1.90 | $2,850 |
| 2025-06-11 | KOSS JOHN C JR | Officer | −Sell | 23,500 | $5.65 | $132,775 |
| 2025-06-11 | KOSS JOHN C JR | Officer | +Exercise | 23,500 | $1.90 | $44,650 |
| 2025-06-10 | KOSS JOHN C JR | Officer | +Exercise | 25,000 | $1.90 | $47,500 |
| 2025-06-10 | KOSS JOHN C JR | Officer | −Sell | 25,000 | $5.80 | $145,000 |
| 2024-12-12 | KOSS JOHN C JR | Officer | +Exercise | 25,000 | $1.90 | $47,500 |
| 2024-12-12 | KOSS JOHN C JR | Officer | −Sell | 25,000 | $7.39 | $184,750 |
| 2024-05-30 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Other | 15,000 | — | — |
| 2024-05-20 | KOSS JOHN C JR | Officer | −Sell | 25,000 | $5.25 | $131,250 |
| 2024-05-20 | KOSS JOHN C JR | Officer | +Exercise | 25,000 | $2.17 | $54,250 |
| 2022-06-02 | Sweasy William Jesse | Director | +Buy | 2,847 | $7.30 | $20,783 |
| 2022-06-01 | Sweasy William Jesse | Director | +Buy | 17,153 | $6.96 | $119,385 |
| 2022-03-23 | KOSS JOHN C JR | Officer | −Z | 1,000,885 | — | — |
| 2022-03-23 | KOSS JOHN C JR | Officer | −Z | 707,949 | — | — |
| 2022-03-23 | KOSS JOHN C JR | Officer | −Z | 983,800 | — | — |
| 2022-03-23 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Z | 707,949 | — | — |
| 2022-03-23 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Z | 1,000,885 | — | — |
| 2022-03-23 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | +Z | 2,696,634 | — | — |
| 2022-03-23 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Z | 983,800 | — | — |
| 2022-03-23 | KFT Corp | TenPercentOwner | −Z | 983,800 | — | — |
| 2022-03-23 | Koss Family Trust, Dated 9/11/12 | TenPercentOwner | −Z | 1,000,885 | — | — |
| 2021-11-02 | Smith David Donnan | Officer | −Sell | 10,000 | $15.54 | $155,400 |
| 2021-11-02 | Smith David Donnan | Officer | +Exercise | 10,000 | $2.63 | $26,300 |
| 2021-09-15 | Koss Michael J Jr | Officer | −Sell | 24,089 | $17.74 | $427,339 |
| 2021-09-15 | Koss Michael J Jr | Officer | +Exercise | 15,000 | $2.92 | $43,800 |
| 2021-09-15 | Koss Michael J Jr | Officer | +Exercise | 9,089 | $2.17 | $19,723 |
| 2021-09-01 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Sell | 780 | $18.75 | $14,625 |
| 2021-09-01 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | +Exercise | 780 | $1.95 | $1,521 |
| 2021-08-31 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | +Exercise | 9,220 | $1.95 | $17,979 |
| 2021-08-31 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Sell | 9,220 | $18.51 | $170,662 |
| 2021-08-31 | KOSS JOHN C JR | Officer,TenPercentOwner | −Sell | 10,000 | $18.38 | $183,800 |
| 2021-08-31 | KOSS JOHN C JR | Officer,TenPercentOwner | +Exercise | 10,000 | $1.90 | $19,000 |
| 2021-08-30 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | +Exercise | 5,400 | $1.95 | $10,530 |
| 2021-08-30 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Sell | 5,400 | $18.28 | $98,712 |
| 2021-08-30 | KOSS JOHN C JR | Officer,TenPercentOwner | −Sell | 5,000 | $18.26 | $91,300 |
| 2021-08-30 | KOSS JOHN C JR | Officer,TenPercentOwner | +Exercise | 5,000 | $1.90 | $9,500 |
| 2021-08-27 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | +Exercise | 4,600 | $1.95 | $8,970 |
| 2021-08-27 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Sell | 4,600 | $18.06 | $83,076 |
| 2021-08-27 | KOSS JOHN C JR | Officer,TenPercentOwner | −Sell | 10,000 | $18.06 | $180,600 |
| 2021-08-27 | KOSS JOHN C JR | Officer,TenPercentOwner | +Exercise | 10,000 | $1.90 | $19,000 |
| 2021-08-26 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | +Exercise | 8,500 | $1.95 | $16,575 |
| 2021-08-26 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Sell | 8,500 | $18.33 | $155,805 |
| 2021-08-25 | Koss Michael J Jr | Officer | +Exercise | 15,000 | $1.90 | $28,500 |
| 2021-08-25 | Koss Michael J Jr | Officer | +Exercise | 15,000 | $1.95 | $29,250 |
| 2021-08-25 | Koss Michael J Jr | Officer | −Sell | 30,000 | $18.01 | $540,300 |
| 2021-08-24 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Sell | 16,500 | $19.74 | $325,710 |
| 2021-08-24 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | +Exercise | 16,500 | $1.95 | $32,175 |
| 2021-08-24 | KOSS JOHN C JR | Officer,TenPercentOwner | +Exercise | 25,000 | $2.92 | $73,000 |
| 2021-08-24 | KOSS JOHN C JR | Officer,TenPercentOwner | +Exercise | 25,000 | $1.95 | $48,750 |
| 2021-08-24 | KOSS JOHN C JR | Officer,TenPercentOwner | +Exercise | 25,000 | $2.17 | $54,250 |
| 2021-08-24 | KOSS JOHN C JR | Officer,TenPercentOwner | −Sell | 36,263 | $17.40 | $630,976 |
| 2021-08-24 | KOSS JOHN C JR | Officer,TenPercentOwner | −Sell | 13,737 | $18.27 | $250,975 |
| 2021-08-24 | KOSS JOHN C JR | Officer,TenPercentOwner | −Sell | 25,000 | $20.06 | $501,500 |
| 2021-08-24 | Smith David Donnan | Officer | +Exercise | 10,000 | $2.63 | $26,300 |
| 2021-08-24 | Smith David Donnan | Officer | +Exercise | 10,000 | $1.97 | $19,700 |
| 2021-08-24 | Smith David Donnan | Officer | +Exercise | 48,000 | $3.00 | $144,000 |
| 2021-08-24 | Smith David Donnan | Officer | +Exercise | 22,000 | $2.57 | $56,540 |
| 2021-08-24 | Smith David Donnan | Officer | +Exercise | 10,000 | $2.20 | $22,000 |
| 2021-08-24 | Smith David Donnan | Officer | +Exercise | 10,000 | $1.73 | $17,300 |
| 2021-08-24 | Smith David Donnan | Officer | −Sell | 110,000 | $17.64 | $2M |
| 2021-07-01 | LILLIE LENORE | Officer | −Sell | 15,000 | $22.27 | $334,050 |
| 2021-07-01 | LILLIE LENORE | Officer | +Exercise | 9,000 | $2.20 | $19,800 |
| 2021-07-01 | LILLIE LENORE | Officer | +Exercise | 6,000 | $1.97 | $11,820 |
| 2021-07-01 | Smith David Donnan | Officer | +Exercise | 50,000 | $6.00 | $300,000 |
| 2021-07-01 | Smith David Donnan | Officer | −Sell | 7,500 | $23.00 | $172,500 |
| 2021-07-01 | Smith David Donnan | Officer | −Sell | 42,500 | $22.05 | $937,125 |
| 2021-06-15 | Koss Michael J Jr | Officer | −Sell | 10,000 | $24.30 | $243,000 |
| 2021-06-15 | KOSS JOHN C JR | Officer,TenPercentOwner | −Sell | 5,000 | $24.22 | $121,100 |
| 2021-06-14 | KOSS JOHN C JR | Officer,TenPercentOwner | −Sell | 3,000 | $25.20 | $75,600 |
| 2021-06-09 | KOSS JOHN C JR | Officer,TenPercentOwner | −Sell | 5,000 | $27.00 | $135,000 |
| 2021-06-08 | KOSS JOHN C JR | Officer,TenPercentOwner | −Sell | 8,133 | $30.00 | $243,990 |
| 2021-06-03 | KOSS JOHN C JR | Officer,TenPercentOwner | −Sell | 5,000 | $32.50 | $162,500 |
| 2021-06-03 | KOSS JOHN C JR | Officer,TenPercentOwner | −Sell | 5,000 | $30.00 | $150,000 |
| 2021-06-03 | KOSS JOHN C JR | Officer,TenPercentOwner | −Sell | 5,000 | $35.36 | $176,800 |
| 2021-06-03 | KOSS JOHN C JR | Officer,TenPercentOwner | −Sell | 5,000 | $31.35 | $156,750 |
| 2021-06-02 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Sell | 10,000 | $28.18 | $281,800 |
| 2021-06-02 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Sell | 25,000 | $26.11 | $652,750 |
| 2021-06-02 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Sell | 5,000 | $43.00 | $215,000 |
| 2021-06-02 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Sell | 8,221 | $29.63 | $243,588 |
| 2021-06-02 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Sell | 5,000 | $30.00 | $150,000 |
| 2021-06-02 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | +Exercise | 43,221 | $1.95 | $84,281 |
| 2021-06-02 | KOSS JOHN C JR | Officer,TenPercentOwner | −Sell | 5,000 | $28.00 | $140,000 |
| 2021-06-02 | Koss Michael J Jr | Officer | −Sell | 10,000 | $40.51 | $405,100 |
| 2021-06-01 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Sell | 11,779 | $25.04 | $294,946 |
| 2021-06-01 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | +Exercise | 11,779 | $1.95 | $22,969 |
| 2021-06-01 | KOSS JOHN C JR | Officer,TenPercentOwner | −Sell | 5,000 | $25.00 | $125,000 |
| 2021-05-28 | KOSS JOHN C JR | Officer,TenPercentOwner | −Sell | 10,000 | $23.50 | $235,000 |
| 2021-05-28 | Nixon Theodore | Director | −Sell | 10,000 | $23.58 | $235,800 |
| 2021-05-28 | Nixon Theodore | Director | +Exercise | 10,000 | $1.92 | $19,200 |
| 2021-05-26 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Sell | 9,000 | $21.26 | $191,340 |
| 2021-05-18 | Doerr Thomas L. | Director | −Sell | 3,333 | $18.83 | $62,760 |
| 2021-05-18 | Doerr Thomas L. | Director | +Exercise | 3,333 | $1.92 | $6,399 |
| 2021-04-01 | Smith David Donnan | Officer | −Sell | 10,500 | $22.12 | $232,260 |
| 2021-04-01 | Smith David Donnan | Officer | +Exercise | 10,000 | $1.97 | $19,700 |
| 2021-04-01 | Smith David Donnan | Officer | +Exercise | 6,000 | $2.63 | $15,780 |
| 2021-04-01 | Smith David Donnan | Officer | −Sell | 5,500 | $24.24 | $133,320 |
| 2021-04-01 | LILLIE LENORE | Officer | −Sell | 4,500 | $22.12 | $99,540 |
| 2021-04-01 | LILLIE LENORE | Officer | −Sell | 3,050 | $24.39 | $74,390 |
| 2021-04-01 | LILLIE LENORE | Officer | +Exercise | 7,550 | $3.00 | $22,650 |
| 2021-03-12 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Sell | 4,122 | $29.99 | $123,619 |
| 2021-03-11 | KOSS JOHN C JR | Officer,TenPercentOwner | −Gift | 5,000 | — | — |
| 2021-03-10 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Sell | 10,000 | $38.05 | $380,500 |
| 2021-03-10 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Sell | 4,000 | $29.10 | $116,400 |
| 2021-03-10 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Sell | 10,000 | $29.00 | $290,000 |
| 2021-03-10 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | +Exercise | 40,000 | $1.95 | $78,000 |
| 2021-03-10 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Sell | 20,000 | $37.72 | $754,400 |
| 2021-03-10 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Sell | 20,000 | $26.85 | $537,000 |
| 2021-03-10 | KOSS MICHAEL J | Director,Officer,TenPercentOwner | −Sell | 5,000 | $39.90 | $199,500 |
| 2021-03-10 | KOSS JOHN C JR | Officer,TenPercentOwner | −Sell | 10,000 | $25.22 | $252,200 |
| 2021-03-10 | KOSS JOHN C JR | Officer,TenPercentOwner | −Sell | 10,000 | $27.95 | $279,500 |
| 2021-03-10 | KOSS JOHN C JR | Officer,TenPercentOwner | −Sell | 5,000 | $30.00 | $150,000 |
| 2021-03-10 | KOSS JOHN C JR | Officer,TenPercentOwner | −Sell | 4,000 | $36.72 | $146,880 |
| 2021-03-01 | LILLIE LENORE | Officer | +Exercise | 22,450 | $3.00 | $67,350 |
Source: the SEC bulk insider (Form 3/4/5) data sets — non-derivative transactions in the issuer's common stock, most recent first, covering filings through 2026-06-30. Insiders file within 2 business days of a transaction, but the bulk sets publish quarterly, so this store lags live filings; option/derivative lines are excluded. Codes: P buy · S sell · A grant · M/X/C exercise · F tax · G gift.
Model-derived estimate for research. See the Disclaimer.
