| 2018-03-12 | Sale | Gentex Corporation GNTX | 231,573 0.0843% | $23.36 | $5.41M | -2.08% | ||
| 2018-03-09 | Sale | Gentex Corporation GNTX | 714,627 0.2608% | $23.32 | $16.66M | -1.52% | ||
| 2017-08-07 | Sale | Gentex Corporation GNTX | Chairman of the Board & CEO | 478,800 0.1284% | $13.22 | $6.33M | +31.85% | |
| 2016-08-22 | Sale | Gentex Corporation GNTX | Chairman of the Board & CEO | 90,078 0.0313% | $18.03 | $1.62M | +6.3% | |
| 2016-08-19 | Sale | Gentex Corporation GNTX | Chairman of the Board & CEO | 869,922 0.3031% | $18.04 | $15.7M | +6.6% | |
| 2016-08-18 | Sale | Gentex Corporation GNTX | Chairman of the Board & CEO | 432,000 0.15% | $18.01 | $7.78M | +6.36% | |
| 2016-06-08 | Sale | Gentex Corporation GNTX | Chairman of the Board & CEO | 150,000 0.052% | $16.44 | $2.47M | +15.86% | |
| 2016-06-07 | Sale | Gentex Corporation GNTX | Chairman of the Board & CEO | 553,400 0.1916% | $16.46 | $9.11M | +15.65% | |
| 2016-06-06 | Sale | Gentex Corporation GNTX | Chairman of the Board & CEO | 476,400 0.1649% | $16.42 | $7.82M | +15.7% | |
| 2016-06-03 | Sale | Gentex Corporation GNTX | Chairman of the Board & CEO | 56,200 0.0195% | $16.40 | $921,877 | +15.13% | |
| 2015-11-10 | Sale | Gentex Corporation GNTX | Chairman of the Board & CEO | 1.52M 0.5191% | $16.43 | $25.04M | -1.15% | |
| 2014-11-04 | Sale | Gentex Corporation GNTX | Chairman of the Board & CEO | 100,000 0.0686% | $32.60 | $3.26M | +6.3% | |
| 2014-11-03 | Sale | Gentex Corporation GNTX | Chairman of the Board & CEO | 125,000 0.0863% | $32.81 | $4.1M | +6.24% | |
| 2014-10-31 | Sale | Gentex Corporation GNTX | Chairman of the Board & CEO | 843,000 0.5806% | $32.80 | $27.65M | +6.07% | |
| 2013-05-08 | Sale | Gentex Corporation GNTX | Chairman of the Board & CEO | 837,264 0.5841% | $24.52 | $20.53M | +19.19% | |
| 2010-12-14 | Sale | Gentex Corporation GNTX | Chairman of the Board & CEO | 200,000 0.1409% | $29.15 | $5.83M | +0.79% | |
| 2010-12-13 | Sale | Gentex Corporation GNTX | Chairman of the Board & CEO | 400,000 0.2823% | $29.04 | $11.62M | +1.35% | |
| 2010-12-10 | Sale | Gentex Corporation GNTX | Chairman of the Board & CEO | 400,000 0.2811% | $28.95 | $11.58M | +1.22% | |
| 2010-02-17 | Sale | Gentex Corporation GNTX | Chairman of the Board & CEO | 254,400 0.1805% | $19.28 | $4.91M | +3.68% | |
| 2010-02-16 | Sale | Gentex Corporation GNTX | Chairman of the Board & CEO | 745,600 0.5355% | $19.07 | $14.22M | +5.96% |