Mario Gabelli's GNTX Position Overview
Mario Gabelli (via Gamco Investors, Inc. Et Al) currently holds 239,000 shares of Gentex Corporation (GNTX) worth $5.56 M, representing 0.05% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 51 quarters.
Based on 13F filings since 2013, Mario Gabelli has maintained a long-term strategic position in GNTX, representing a significant commitment to this investment thesis. Largest addition occurred in Q4 2025, adding 13,500 shares. Largest reduction occurred in Q3 2019, reducing 26,000 shares.
Analysis based on 13F filings available since 2013 Q2
Mario Gabelli's Gentex Corporation (GNTX) Holding Value Over Time
Track share changes against reported price movement
Quarterly Gentex Corporation (GNTX) Trades by Mario Gabelli
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2025 | +13,500 | Add 5.99% | 239,000 | $23.27 |
| Q2 2025 | +4,440 | Add 2.01% | 225,500 | $21.99 |
| Q1 2025 | +5,560 | Add 2.58% | 221,060 | $23.30 |
| Q4 2024 | +1,500 | Add 0.70% | 215,500 | $28.73 |
| Q3 2023 | -2,100 | Reduce 0.97% | 214,000 | $32.54 |
| Q2 2023 | +1,700 | Add 0.79% | 216,100 | $29.26 |
| Q1 2023 | -700 | Reduce 0.33% | 214,400 | $28.03 |
| Q4 2022 | +2,240 | Add 1.05% | 215,100 | $27.27 |
| Q3 2022 | +2,700 | Add 1.28% | 212,860 | $23.84 |
| Q2 2022 | -3,640 | Reduce 1.70% | 210,160 | $27.97 |
| Q1 2022 | +8,040 | Add 3.91% | 213,800 | $29.17 |
| Q4 2021 | +5,700 | Add 2.85% | 205,760 | $34.85 |
| Q3 2021 | +7,500 | Add 3.89% | 200,060 | $32.98 |
| Q2 2021 | -1,710 | Reduce 0.88% | 192,560 | $33.09 |
| Q1 2021 | +1,485 | Add 0.77% | 194,270 | $35.67 |
| Q4 2020 | +475 | Add 0.25% | 192,785 | $33.93 |
| Q3 2020 | +2,310 | Add 1.22% | 192,310 | $25.75 |
| Q3 2019 | -26,000 | Reduce 12.04% | 190,000 | $27.54 |
| Q2 2019 | -4,000 | Reduce 1.82% | 216,000 | $24.61 |
| Q1 2019 | -25,000 | Reduce 10.20% | 220,000 | $20.68 |
| Q2 2018 | -1,000 | Reduce 0.41% | 245,000 | $23.02 |
| Q1 2018 | -10,000 | Reduce 3.91% | 246,000 | $23.02 |
| Q1 2017 | -2,000 | Reduce 0.78% | 256,000 | $21.33 |
| Q4 2016 | -2,000 | Reduce 0.77% | 258,000 | $19.69 |
| Q1 2014 | -2,000 | Reduce 0.76% | 260,000 | $15.77 |
| Q3 2013 | +2,000 | Add 0.77% | 262,000 | $12.79 |
| Q2 2013 | +260,000 | Add 0.00% | 260,000 | $11.53 |
Mario Gabelli's Gentex Corporation Investment FAQs
Mario Gabelli first purchased Gentex Corporation (GNTX) in Q2 2013, acquiring 260,000 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Mario Gabelli has held Gentex Corporation (GNTX) for 51 quarters since Q2 2013.
Mario Gabelli's largest addition to Gentex Corporation (GNTX) was in Q2 2013, adding 260,000 shares worth $3 M.
According to the latest 13F filing for Q4 2025, Mario Gabelli's firm, Gamco Investors, Inc. Et Al, owns 239,000 shares of Gentex Corporation (GNTX), valued at approximately $5.56 M.
As of the Q4 2025 filing, Gentex Corporation (GNTX) represents approximately 0.05% of Mario Gabelli's publicly disclosed stock portfolio, making it one of their key holdings.
Mario Gabelli's peak holding in Gentex Corporation (GNTX) was 262,000 shares, as reported at the end of Q3 2013.