GNTX GENTEX CORP
Nasdaq · SEC CIK 355811 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $2.79M 9 sales by 9 insiders
- Filings on record
- 128 since 2021-07-28, latest 2026-05-22 15:09
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| Downing Steven R | Pres, CEO | — | $866.2K |
| Chiodo Matthew | VP of Sales | — | $496.3K |
| Nash Kevin C | CFO | — | $296.9K |
| Boehm Neil | CTO | — | $279.2K |
| BROWN LESLIE L | Dir | — | $246.3K |
| Ryan Scott P | GC | — | $223.2K |
| ANDERSON JOSEPH B JR | Dir | — | $136.4K |
| WALKER BRIAN C | Dir | — | $136.4K |
| Schaum Richard O | Dir | — | $112.2K |
| Pink Billy | Dir | — | — |
Transactions 183
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-05-22 15:09 | 2026-05-21 | GNTX | KENNEDY JOHN C | Dir | A - Grant | $0.00 | +5,626 | 5,626 | New | $0 | |
| 2026-05-22 13:44 | 2026-05-21 | GNTX | Zang Ling | Dir | A - Grant | $0.00 | +5,626 | 35.6K | +19% | $0 | |
| 2026-05-22 13:41 | 2026-05-21 | GNTX | WALKER BRIAN C | Dir | A - Grant | $0.00 | +5,626 | 29.8K | +23% | $0 | |
| 2026-05-22 13:36 | 2026-05-21 | GNTX | Starkoff Kathleen | Dir | A - Grant | $0.00 | +5,626 | 36.8K | +18% | $0 | |
| 2026-05-22 13:31 | 2026-05-21 | GNTX | Schaum Richard O | Dir | A - Grant | $0.00 | +5,626 | 87.1K | +7% | $0 | |
| 2026-05-22 12:01 | 2026-05-21 | GNTX | Pink Billy | Dir | A - Grant | $0.00 | +5,626 | 15.3K | +58% | $0 | |
| 2026-05-22 11:57 | 2026-05-21 | GNTX | DEUR GARTH | Dir | A - Grant | $0.00 | +5,626 | 20.0K | +39% | $0 | |
| 2026-05-22 11:53 | 2026-05-21 | GNTX | BROWN LESLIE L | Dir | A - Grant | $0.00 | +5,626 | 42.0K | +15% | $0 | |
| 2026-05-15 16:40 | 2026-05-15 | GNTX | WALKER BRIAN C | Dir | S - Sale | $22.98 | -5,939 | 24.2K | -20% | -$136.4K | |
| 2026-05-15 16:36 | 2026-05-15 | GNTX | ANDERSON JOSEPH B JR | Dir | S - Sale | $22.98 | -5,939 | 0 | -100% | -$136.4K | |
| DM | 2026-05-05 15:53 | 2026-05-05 | GNTX | BROWN LESLIE L | Dir | M - OptEx | $17.22 | +14.0K | 47.1K | +42% | +$241.1K |
| D | 2026-05-05 15:53 | 2026-05-05 | GNTX | BROWN LESLIE L | Dir | S - Sale+OE | $22.85 | -10.8K | 36.4K | -23% | -$246.3K |
| D | 2026-04-30 14:14 | 2026-04-30 | GNTX | Schaum Richard O | Dir | M - OptEx | $15.74 | +7,000 | 86.3K | +9% | +$110.2K |
| D | 2026-04-30 14:14 | 2026-04-30 | GNTX | Schaum Richard O | Dir | S - Sale+OE | $23.31 | -4,815 | 81.4K | -6% | -$112.2K |
| M | 2026-02-19 | 2026-02-17+ | GNTX | Ryan Scott P | GC | A - Grant | $0.00 | +36.8K | 55.3K | +199% | $0 |
| M | 2026-02-19 | 2026-02-17 | GNTX | Ryan Scott P | GC | S - Sale | $24.73 | -9,024 | 46.2K | -16% | -$223.2K |
| M | 2026-02-19 | 2026-02-17 | GNTX | Ryan Scott P | GC | F - Tax | $24.89 | -14.4K | 53.3K | -21% | -$358.4K |
| M | 2026-02-19 | 2026-02-17 | GNTX | Downing Steven R | Pres, CEO | F - Tax | $24.89 | -68.3K | 260.7K | -21% | -$1.70M |
| M | 2026-02-19 | 2026-02-17+ | GNTX | Downing Steven R | Pres, CEO | A - Grant | $0.00 | +167.8K | 255.2K | +192% | $0 |
| 2026-02-19 | 2026-02-17 | GNTX | Downing Steven R | Pres, CEO | S - Sale | $24.75 | -35.0K | 211.7K | -14% | -$866.2K | |
| M | 2026-02-19 | 2026-02-17+ | GNTX | Chiodo Matthew | VP of Sales | A - Grant | $0.00 | +40.3K | 47.1K | +590% | $0 |
| M | 2026-02-19 | 2026-02-17 | GNTX | Chiodo Matthew | VP of Sales | S - Sale | $25.03 | -19.8K | 39.2K | -34% | -$496.3K |
| M | 2026-02-19 | 2026-02-17 | GNTX | Chiodo Matthew | VP of Sales | F - Tax | $24.89 | -15.8K | 54.9K | -22% | -$392.0K |
| M | 2026-02-19 | 2026-02-17+ | GNTX | Boehm Neil | CTO | A - Grant | $0.00 | +46.9K | 88.0K | +114% | $0 |
| M | 2026-02-19 | 2026-02-17 | GNTX | Boehm Neil | CTO | F - Tax | $24.89 | -17.8K | 73.8K | -19% | -$442.2K |
| M | 2026-02-19 | 2026-02-17 | GNTX | Boehm Neil | CTO | S - Sale | $24.82 | -11.2K | 59.0K | -16% | -$279.2K |
| M | 2026-02-19 | 2026-02-17+ | GNTX | Nash Kevin C | CFO | A - Grant | $0.00 | +52.1K | 92.5K | +129% | $0 |
| M | 2026-02-19 | 2026-02-17 | GNTX | Nash Kevin C | CFO | S - Sale | $24.98 | -11.9K | 59.4K | -17% | -$296.9K |
| M | 2026-02-19 | 2026-02-17 | GNTX | Nash Kevin C | CFO | F - Tax | $24.89 | -21.2K | 75.6K | -22% | -$526.9K |
| 2025-08-27 | 2025-08-26 | GNTX | Nash Kevin C | CFO | G - Gift | $28.28 | -865 | 54.3K | -2% | -$24.5K | |
| 2025-05-19 | 2025-05-15 | GNTX | ANDERSON JOSEPH B JR | Dir | A - Grant | $0.00 | +5,939 | 9,703 | +158% | $0 | |
| 2025-05-19 | 2025-05-16 | GNTX | ANDERSON JOSEPH B JR | Dir | S - Sale | $22.87 | -3,764 | 5,939 | -39% | -$86.1K | |
| 2025-05-19 | 2025-05-15 | GNTX | Zang Ling | Dir | A - Grant | $0.00 | +5,939 | 30.0K | +25% | $0 | |
| 2025-05-19 | 2025-05-15 | GNTX | BROWN LESLIE L | Dir | A - Grant | $0.00 | +5,939 | 33.1K | +22% | $0 | |
| 2025-05-19 | 2025-05-15 | GNTX | Schaum Richard O | Dir | A - Grant | $0.00 | +5,939 | 79.3K | +8% | $0 | |
| 2025-05-19 | 2025-05-15 | GNTX | WALKER BRIAN C | Dir | A - Grant | $0.00 | +5,939 | 30.1K | +25% | $0 | |
| 2025-05-19 | 2025-05-15 | GNTX | Starkoff Kathleen | Dir | A - Grant | $0.00 | +5,939 | 31.1K | +24% | $0 | |
| 2025-05-19 | 2025-05-15 | GNTX | DEUR GARTH | Dir | A - Grant | $0.00 | +5,939 | 14.4K | +70% | $0 | |
| 2025-05-19 | 2025-05-15 | GNTX | Pink Billy | Dir | A - Grant | $0.00 | +5,939 | 9,703 | +158% | $0 | |
| D | 2025-05-02 | 2025-05-01 | GNTX | Schaum Richard O | Dir | M - OptEx | $17.46 | +7,000 | 73.3K | +11% | +$122.2K |
| 2025-02-21 | 2025-02-20 | GNTX | Nash Kevin C | CFO | A - Grant | $0.00 | +11.8K | 54.1K | +28% | $0 | |
| 2025-02-21 | 2025-02-20 | GNTX | Chiodo Matthew | VP of Sales | A - Grant | $0.00 | +9,130 | 41.3K | +28% | $0 | |
| 2025-02-21 | 2025-02-20 | GNTX | Ryan Scott P | GC | A - Grant | $0.00 | +8,370 | 40.9K | +26% | $0 | |
| 2025-02-21 | 2025-02-20 | GNTX | Boehm Neil | CTO | A - Grant | $0.00 | +12.3K | 55.6K | +28% | $0 | |
| 2025-02-21 | 2025-02-20 | GNTX | Downing Steven R | Pres, CEO | A - Grant | $0.00 | +37.7K | 189.6K | +25% | $0 | |
| M | 2025-02-19 | 2025-02-18 | GNTX | Boehm Neil | CTO | F - Tax | $24.62 | -9,535 | 46.6K | -17% | -$234.8K |
| 2025-02-19 | 2025-02-18 | GNTX | Boehm Neil | CTO | A - Grant | $0.00 | +13.1K | 52.9K | +33% | $0 | |
| M | 2025-02-19 | 2025-02-18 | GNTX | Nash Kevin C | CFO | F - Tax | $24.62 | -15.8K | 50.7K | -24% | -$390.0K |
| 2025-02-19 | 2025-02-18 | GNTX | Nash Kevin C | CFO | A - Grant | $0.00 | +15.6K | 58.1K | +37% | $0 | |
| M | 2025-02-19 | 2025-02-18 | GNTX | Downing Steven R | Pres, CEO | F - Tax | $24.62 | -64.8K | 164.8K | -28% | -$1.60M |
| 2025-02-19 | 2025-02-18 | GNTX | Downing Steven R | Pres, CEO | A - Grant | $0.00 | +51.9K | 216.7K | +31% | $0 | |
| M | 2025-02-19 | 2025-02-18 | GNTX | Ryan Scott P | GC | F - Tax | $24.62 | -7,615 | 32.5K | -19% | -$187.5K |
| 2025-02-19 | 2025-02-18 | GNTX | Ryan Scott P | GC | A - Grant | $0.00 | +10.3K | 40.1K | +35% | $0 | |
| 2025-02-19 | 2025-02-18 | GNTX | Chiodo Matthew | VP of Sales | A - Grant | $0.00 | +11.4K | 43.9K | +35% | $0 | |
| M | 2025-02-19 | 2025-02-18 | GNTX | Chiodo Matthew | VP of Sales | F - Tax | $24.62 | -11.7K | 32.2K | -27% | -$287.5K |
| 2024-05-24 | 2024-05-16 | GNTX | Pink Billy | Dir | A - Grant | $0.00 | +3,764 | 3,764 | New | $0 | |
| 2024-05-21 | 2024-05-20 | GNTX | ANDERSON JOSEPH B JR | Dir | S - Sale | $34.46 | -4,716 | 3,764 | -56% | -$162.5K | |
| 2024-05-21 | 2024-05-20 | GNTX | GOODE GARY F | Dir | S - Sale | $34.46 | -4,716 | 24.5K | -16% | -$162.5K | |
| 2024-05-17 | 2024-05-16 | GNTX | Zang Ling | Dir | A - Grant | $0.00 | +3,764 | 24.0K | +19% | $0 | |
| 2024-05-17 | 2024-05-16 | GNTX | Schaum Richard O | Dir | A - Grant | $0.00 | +3,764 | 66.3K | +6% | $0 | |
| 2024-05-17 | 2024-05-16 | GNTX | BROWN LESLIE L | Dir | A - Grant | $0.00 | +3,764 | 27.2K | +16% | $0 | |
| 2024-05-17 | 2024-05-16 | GNTX | DEUR GARTH | Dir | A - Grant | $0.00 | +3,764 | 8,480 | +80% | $0 | |
| 2024-05-17 | 2024-05-16 | GNTX | WALKER BRIAN C | Dir | A - Grant | $0.00 | +3,764 | 24.2K | +18% | $0 | |
| 2024-05-17 | 2024-05-16 | GNTX | ANDERSON JOSEPH B JR | Dir | A - Grant | $0.00 | +3,764 | 8,480 | +80% | $0 | |
| 2024-05-17 | 2024-05-16 | GNTX | Starkoff Kathleen | Dir | A - Grant | $0.00 | +3,764 | 25.2K | +18% | $0 | |
| 2024-03-01 | 2024-02-29 | GNTX | Nash Kevin C | CFO | G - Gift | $36.53 | -1,831 | 42.5K | -4% | -$66.9K | |
| M | 2024-02-21 | 2024-02-20 | GNTX | Chiodo Matthew | VP of Sales | F - Tax | $35.01 | -14.3K | 31.6K | -31% | -$501.2K |
| 2024-02-21 | 2024-02-20 | GNTX | Chiodo Matthew | VP of Sales | A - Grant | $0.00 | +8,290 | 46.0K | +22% | $0 | |
| 2024-02-21 | 2024-02-20 | GNTX | Boehm Neil | CTO | A - Grant | $0.00 | +8,878 | 54.8K | +19% | $0 | |
| M | 2024-02-21 | 2024-02-20 | GNTX | Boehm Neil | CTO | F - Tax | $35.01 | -15.3K | 46.0K | -25% | -$536.8K |
| M | 2024-02-21 | 2024-02-20 | GNTX | Downing Steven R | Pres, CEO | F - Tax | $35.01 | -30.1K | 164.1K | -15% | -$1.05M |
| 2024-02-21 | 2024-02-20 | GNTX | Downing Steven R | Pres, CEO | A - Grant | $0.00 | +25.2K | 194.1K | +15% | $0 | |
| D | 2024-02-21 | 2024-02-20 | GNTX | Ryan Scott P | GC | M - OptEx | $22.94 | +12.5K | 41.4K | +43% | +$286.8K |
| DM | 2024-02-21 | 2024-02-20 | GNTX | Ryan Scott P | GC | F - Tax | $35.01 | -6,284 | 31.5K | -17% | -$220.0K |
| D | 2024-02-21 | 2024-02-20 | GNTX | Ryan Scott P | GC | S - Sale+OE | $35.00 | -12.5K | 28.9K | -30% | -$437.5K |
| D | 2024-02-21 | 2024-02-20 | GNTX | Ryan Scott P | GC | A - Grant | $0.00 | +7,636 | 35.2K | +28% | $0 |
| D | 2024-02-21 | 2024-02-20 | GNTX | Nash Kevin C | CFO | A - Grant | $0.00 | +8,726 | 51.5K | +20% | $0 |
| D | 2024-02-21 | 2024-02-20 | GNTX | Nash Kevin C | CFO | M - OptEx | $22.94 | +13.5K | 57.8K | +30% | +$309.7K |
| DM | 2024-02-21 | 2024-02-20 | GNTX | Nash Kevin C | CFO | F - Tax | $35.01 | -7,135 | 47.3K | -13% | -$249.8K |
| D | 2024-02-21 | 2024-02-20 | GNTX | Nash Kevin C | CFO | S - Sale+OE | $33.04 | -13.5K | 44.3K | -23% | -$446.0K |
| 2024-02-16 | 2024-02-15 | GNTX | Chiodo Matthew | VP of Sales | A - Grant | $0.00 | +6,628 | 37.7K | +21% | $0 | |
| 2024-02-16 | 2024-02-15 | GNTX | Downing Steven R | Pres, CEO | A - Grant | $0.00 | +29.1K | 168.9K | +21% | $0 | |
| 2024-02-16 | 2024-02-15 | GNTX | Nash Kevin C | CFO | A - Grant | $0.00 | +9,146 | 42.7K | +27% | $0 | |
| 2024-02-16 | 2024-02-15 | GNTX | Boehm Neil | CTO | A - Grant | $0.00 | +9,476 | 46.0K | +26% | $0 | |
| 2024-02-16 | 2024-02-15 | GNTX | Ryan Scott P | GC | A - Grant | $0.00 | +6,075 | 27.6K | +28% | $0 | |
| D | 2024-02-09 | 2024-02-09 | GNTX | GOODE GARY F | Dir | S - Sale+OE | $35.02 | -7,000 | 29.2K | -19% | -$245.1K |
| D | 2024-02-09 | 2024-02-09 | GNTX | GOODE GARY F | Dir | M - OptEx | $24.21 | +7,000 | 36.2K | +24% | +$169.5K |
| D | 2024-02-05 | 2024-02-02 | GNTX | GOODE GARY F | Dir | S - Sale+OE | $34.11 | -7,000 | 29.2K | -19% | -$238.8K |
| D | 2024-02-05 | 2024-02-02 | GNTX | GOODE GARY F | Dir | M - OptEx | $18.70 | +7,000 | 36.2K | +24% | +$130.9K |
| D | 2024-02-02 | 2024-02-01 | GNTX | Schaum Richard O | Dir | M - OptEx | $14.30 | +14.0K | 68.6K | +26% | +$200.2K |
| D | 2024-02-02 | 2024-02-01 | GNTX | Schaum Richard O | Dir | S - Sale+OE | $33.93 | -6,022 | 62.6K | -9% | -$204.3K |
| 2023-12-12 | 2023-12-12 | GNTX | Downing Steven R | Pres, CEO | G - Gift | $31.20 | -4,029 | 139.4K | -3% | -$125.7K | |
| 2023-11-13 | 2023-11-10 | GNTX | Nash Kevin C | CFO | G - Gift | $29.73 | -200 | 33.6K | -0.6% | -$5,946 | |
| 2023-08-18 | 2023-08-17 | GNTX | Nash Kevin C | CFO | G - Gift | $32.58 | -300 | 33.8K | -0.9% | -$9,774 | |
| 2023-08-03 | 2023-07-31 | GNTX | ANDERSON JOSEPH B JR | Dir | S - Sale | $33.52 | -4,416 | 4,716 | -48% | -$148.0K | |
| D | 2023-08-01 | 2023-07-31 | GNTX | Starkoff Kathleen | Dir | M - OptEx | $21.46 | +4,430 | 25.9K | +21% | +$95.1K |
| D | 2023-08-01 | 2023-07-31 | GNTX | Starkoff Kathleen | Dir | S - Sale+OE | $33.20 | -4,430 | 21.4K | -17% | -$147.1K |
| 2023-05-22 | 2023-05-18 | GNTX | Schaum Richard O | Dir | A - Grant | $0.00 | +4,716 | 54.6K | +9% | $0 | |
| 2023-05-22 | 2023-05-18 | GNTX | Starkoff Kathleen | Dir | A - Grant | $0.00 | +4,716 | 21.4K | +28% | $0 | |
| 2023-05-22 | 2023-05-19 | GNTX | Hollars James A | Dir | S - Sale | $28.27 | -4,416 | 36.1K | -11% | -$124.8K |
Purchase Sale Sale after option exercise All abbreviations