X0508 4 2026-02-17 false 0000355811 GENTEX CORP GNTX 0001577379 Downing Steven R 600 NORTH CENTENNIAL STREET ZEELAND MI 49464 false true false false President and CEO false Common Stock 2026-02-17 4 A false 124311.00 0.00 A 315002.00 D Common Stock 2026-02-17 4 F false 54314.00 24.89 D 260688.00 D Common Stock 2026-02-17 4 F false 14018.00 24.89 D 246670.00 D Common Stock 2026-02-17 4 S false 35000.00 24.7457 D 211670.00 D Common Stock 2026-02-19 4 A false 43492.00 0.00 A 255162.00 D 124,311 shares are performance-based shares where the total number of shares granted were based on long term performance incentives. Shares purchased through the Gentex Corporation Employee Stock Purchase Plan, a Section 423(b) plan These shares vest 100% three years from grant award date. /s/ Scott Ryan for Downing Steven R by Power of Attorney 2026-02-19