GENTEX CORP GNTX
COM · Common Stock · CUSIP 371901109
- SectorConsumer discretionary
- IndustryMotor Vehicle Parts & Accessories
- HeadquartersZeeland, MI
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($15.0m this quarter). Holder counts are more reliable. Shares outstanding: 213.0m as of 2026-04-24, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $21.86. Options: 3 managers hold calls ($2.1m notional), 4 hold puts ($327.8k).
Trends to Q1 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 456 |
| Q4 2022 | 462 |
| Q1 2023 | 483 |
| Q2 2023 | 491 |
| Q3 2023 | 504 |
| Q4 2023 | 513 |
| Q1 2024 | 532 |
| Q2 2024 | 537 |
| Q3 2024 | 528 |
| Q4 2024 | 537 |
| Q1 2025 | 520 |
| Q2 2025 | 484 |
| Q3 2025 | 512 |
| Q4 2025 | 527 |
| Q1 2026 | 506 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2024 | 270 | 242 |
| Q3 2024 | 237 | 262 |
| Q4 2024 | 241 | 257 |
| Q1 2025 | 264 | 257 |
| Q2 2025 | 246 | 266 |
| Q3 2025 | 238 | 258 |
| Q4 2025 | 246 | 267 |
| Q1 2026 | 259 | 251 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2025 | $1.4m | $663.3k | 0.47 |
| Q3 2025 | $3.2m | $1.5m | 0.46 |
| Q4 2025 | $69.8k | $30.3k | 0.43 |
| Q1 2026 | $2.1m | $327.8k | 0.16 |
Biggest buyers
| GOLDMAN SACHS GROUP INC | Added | +2.1m |
| SEIZERT CAPITAL PARTNERS, LLC | Added | +1.7m |
| Balyasny Asset Management L.P. | New | +1.4m |
| XXEC, Inc. | Added | +1.3m |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ | New | +1.0m |
| DIMENSIONAL FUND ADVISORS LP | Added | +833.9k |
| BlackRock, Inc. | Added | +784.2k |
| AMERICAN CENTURY COMPANIES INC | Added | +769.0k |
| Gotham Asset Management, LLC | Added | +768.3k |
| Caisse de depot et placement du Quebec | Added | +695.1k |
Biggest sellers
| FULLER & THALER ASSET MANAGEMENT, INC. | Reduced | -6.0m |
| JPMORGAN CHASE & CO | Reduced | -3.2m |
| TD Asset Management Inc | Sold out | -2.6m |
| Covalis Capital LLP | Sold out | -1.7m |
| Epoch Investment Partners, Inc. | Sold out | -1.5m |
| Bridgewater Associates, LP | Reduced | -1.3m |
| LOS ANGELES CAPITAL MANAGEMENT LLC | Reduced | -795.8k |
| Global Alpha Capital Management Ltd. | Sold out | -708.4k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Reduced | -606.5k |
| Qube Research & Technologies Ltd | Reduced | -471.4k |
Biggest calls
| Walleye Capital LLC | New | $1.4m63.6k shares |
| CITADEL ADVISORS LLC | New | $378.0k17.3k shares |
| SIMPLEX TRADING, LLC | Added | $292.8k13.4k shares |
Biggest puts
| CITADEL ADVISORS LLC | New | $229.4k10.5k shares |
| Walleye Capital LLC | New | $83.0k3.8k shares |
| SIMPLEX TRADING, LLC | Added | $10.9k500 shares |
| GROUP ONE TRADING LLC | Reduced | $4.4k200 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.3% |
| AMERICAN CENTURY INVESTMENT MANAGEMENT INC 13G · institution new · filed 2026-08-14 | 5.2% |
| DIMENSIONAL FUND ADVISORS LP 13G · institution new · filed 2026-10-08 | 5.0% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD CAPITAL MANAGEMENT LLC), WELLINGTON MANAGEMENT GROUP LLP (1.1%, 2026-02-10)
Insider purchases and sales in Q1 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q2 2024 | 0 | — | 2 | $162.5k | — |
| Q3 2024 | 0 | — | 0 | — | — |
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 1 | $86.1k | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 0 | — | 5 | $2.2m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-02-17 | Downing Steven R President and CEO | Sold | $866.2k35.0k shares |
| 2026-02-17 | Chiodo Matthew Vice President of Sales | Sold | $496.3k19.8k shares |
| 2026-02-17 | Nash Kevin C Chief Financial Officer | Sold | $296.9k11.9k shares |
| 2026-02-17 | Boehm Neil Chief Technology Officer | Sold | $279.2k11.2k shares |
| 2026-02-17 | Ryan Scott P General Counsel | Sold | $223.2k9.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q1 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 21.3m $465.4m | Added +784.2k |
| AMERICAN CENTURY COMPANIES INC 0.12% of their portfolio | 10.6m $231.7m | Added +769.0k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.01% of their portfolio | 10.3m $224.2m | First filing |
| VANGUARD CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 9.7m $212.0m | First filing |
| ARIEL INVESTMENTS, LLC 2.04% of their portfolio | 8.3m $182.3m | Added +452.5k |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 7.5m $163.1m | Added +833.9k |
| BANK OF MONTREAL /CAN/ 0.07% of their portfolio | 7.4m $161.6m | Reduced -328.0k |
| FULLER & THALER ASSET MANAGEMENT, INC. 0.52% of their portfolio | 7.1m $155.3m | Reduced -6.0m |
| STATE STREET CORP 0.01% of their portfolio | 7.1m $154.7m | Added +7.2k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 6.0m $131.3m | Added +326.5k |
| Boston Partners 0.13% of their portfolio | 5.7m $124.3m | Reduced -115.7k |
| DISCIPLINED GROWTH INVESTORS INC /MN 2.02% of their portfolio | 4.5m $98.8m | Reduced -283.5k |
| Caisse de depot et placement du Quebec 0.13% of their portfolio | 3.8m $83.9m | Added +695.1k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 3.8m $82.5m | Added +2.1m |
| MORGAN STANLEY 0.00% of their portfolio | 3.0m $66.6m | Reduced -249.7k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.04% of their portfolio | 3.0m $65.4m | Added +534.9k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 2.4m $53.3m | Added +63.0k |
| WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio | 2.2m $49.0m | Reduced -59.4k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 2.2m $47.4m | Added +6.3k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 2.1m $46.1m | Reduced -88.7k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% of their portfolio | 2.1m $45.3m | Reduced -606.5k |
| SEIZERT CAPITAL PARTNERS, LLC 2.00% of their portfolio | 2.0m $43.5m | Added +1.7m |
| MILLENNIUM MANAGEMENT LLC 0.03% of their portfolio | 1.9m $41.2m | Added +189.8k |
| WEST MICHIGAN ADVISORS, LLC 8.61% of their portfolio | 1.8m $39.2m | Added +251 |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 1.6m $33.8m | Reduced -3.2m |
| XXEC, Inc. 6.42% of their portfolio | 1.5m $36.6m | Added +1.3m |
| RENAISSANCE TECHNOLOGIES LLC 0.05% of their portfolio | 1.5m $33.0m | Reduced -217.8k |
| UBS Group AG 0.01% of their portfolio | 1.5m $33.0m | Reduced -113.7k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 1.5m $32.9m | Added +455.4k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.13% of their portfolio | 1.5m $32.1m | Added +70.1k |
| Balyasny Asset Management L.P. 0.06% of their portfolio | 1.4m $30.1m | New |
| VANGUARD FIDUCIARY TRUST CO 0.01% of their portfolio | 1.4m $29.8m | First filing |
| Gotham Asset Management, LLC 0.09% of their portfolio | 1.3m $28.2m | Added +768.3k |
| CITADEL ADVISORS LLC 0.02% of their portfolio | 1.2m $26.8m | Reduced -379.5k |
| FIRST TRUST ADVISORS LP 0.02% of their portfolio | 1.2m $25.2m | Added +394.8k |
| Qube Research & Technologies Ltd 0.03% of their portfolio | 1.1m $24.3m | Reduced -471.4k |
| Janney Montgomery Scott LLC 0.06% of their portfolio | 1.0m $22.6m | Added +57.5k |
| EUBEL BRADY & SUTTMAN ASSET MANAGEMENT INC 2.66% of their portfolio | 1.0m $22.5m | Added +189.2k |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ 0.12% of their portfolio | 1.0m $22.3m | New |
| Freestone Grove Partners LP 0.16% of their portfolio | 991.8k $21.7m | Added +376.5k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 964.1k $21.1m | Reduced -215.3k |
| RAYMOND JAMES FINANCIAL INC 0.01% of their portfolio | 919.0k $20.1m | Added +123.4k |
| Pacer Advisors, Inc. 0.06% of their portfolio | 880.1k $19.2m | Added +80.8k |
| Triodos Investment Management BV 1.32% of their portfolio | 801.0k $17.5m | Unchanged |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. 0.15% of their portfolio | 775.4k $16.9m | Added +36.3k |
| Retirement Systems of Alabama 0.05% of their portfolio | 693.3k $15.1m | Added +45.5k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 684.1k $14.9m | Reduced -10.9k |
| AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 662.9k $14.4m | Added +430.5k |
| CIDEL ASSET MANAGEMENT INC 0.77% of their portfolio | 647.4k $14.1m | Added +246.2k |
| ALPS ADVISORS INC 0.07% of their portfolio | 641.6k $14.0m | Reduced -47.3k |
| Trexquant Investment LP 0.10% of their portfolio | 641.6k $14.0m | Added +99.8k |
| Leeward Investments, LLC - MA 0.69% of their portfolio | 637.0k $13.9m | Reduced -18.7k |
| SCHWERIN BOYLE CAPITAL MANAGEMENT INC 1.72% of their portfolio | 621.3k $13.6m | Reduced -74.4k |
| SPEECE THORSON CAPITAL GROUP INC 3.03% of their portfolio | 609.0k $13.3m | Reduced -41.9k |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 0.04% of their portfolio | 578.5k $12.6m | Reduced -38.0k |
| Public Sector Pension Investment Board 0.04% of their portfolio | 562.1k $12.3m | Added +290.9k |
| Quantinno Capital Management LP 0.02% of their portfolio | 555.3k $12.1m | Reduced -168.7k |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC 0.04% of their portfolio | 552.3k $12.1m | Added +73.3k |
| AMERICAN CAPITAL MANAGEMENT INC 0.63% of their portfolio | 534.4k $11.7m | Reduced -45.5k |
| BARCLAYS PLC 0.00% of their portfolio | 518.4k $11.3m | Added +126.1k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 488.7k $10.7m | Added +17.6k |
| Connor, Clark & Lunn Investment Management Ltd. 0.02% of their portfolio | 457.9k $10.0m | Reduced -30.7k |
| California Public Employees Retirement System 0.01% of their portfolio | 455.7k $10.0m | Added +14.0k |
| Nuveen, LLC 0.00% of their portfolio | 449.1k $9.8m | Added +56.5k |
| Hendershot Investments Inc. 1.30% of their portfolio | 441.9k $9.7m | Reduced -833 |
| Invesco Ltd. 0.00% of their portfolio | 439.2k $9.6m | Reduced -32.2k |
| Swiss National Bank 0.01% of their portfolio | 432.8k $9.5m | Unchanged |
| THOMPSON SIEGEL & WALMSLEY LLC 0.16% of their portfolio | 423.5k $9.3m | Added +46.0k |
| South Dakota Investment Council 0.18% of their portfolio | 421.1k $9.2m | Added +76.0k |
| RICE HALL JAMES & ASSOCIATES, LLC 0.50% of their portfolio | 413.8k $9.0m | Added +17.9k |
| ROYCE & ASSOCIATES LP 0.09% of their portfolio | 403.4k $8.8m | Added +224.0k |
| DekaBank Deutsche Girozentrale 0.01% of their portfolio | 375.3k $8.3m | Unchanged |
| SYSTEMATIC FINANCIAL MANAGEMENT LP 0.18% of their portfolio | 364.3k $8.0m | Reduced -10.2k |
| Man Group plc 0.02% of their portfolio | 362.3k $7.9m | Reduced -201.1k |
| Well Done, LLC 1.15% of their portfolio | 357.7k $7.8m | Reduced -47.9k |
| Creative Planning 0.01% of their portfolio | 355.0k $7.8m | Added +110.4k |
| Leith Wheeler Investment Counsel Ltd. 0.63% of their portfolio | 347.2k $7.6m | Added +46.0k |
| TEACHER RETIREMENT SYSTEM OF TEXAS 0.03% of their portfolio | 339.7k $7.4m | Added +80.4k |
| Chevy Chase Trust Holdings, LLC 0.02% of their portfolio | 332.7k $7.3m | Added +99.1k |
| Legal & General Group Plc 0.00% of their portfolio | 332.5k $7.3m | Reduced -32.1k |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 329.0k $7.2m | Reduced -795.8k |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 323.9k $7.1m | Added +143.5k |
| VAN ECK ASSOCIATES CORP 0.01% of their portfolio | 308.8k $6.7m | Added +19.8k |
| MAC Alpha Capital Management, LP 3.90% of their portfolio | 306.4k $6.7m | Added +43.7k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 278.9k $6.5m | Reduced -73.9k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 277.2k $6.1m | Added +155.4k |
| Holocene Advisors, LP 0.01% of their portfolio | 265.8k $5.8m | Added +75.4k |
| Snowden Capital Advisors LLC 0.15% of their portfolio | 264.9k $5.8m | Added +5.8k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 260.8k $5.7m | Added +53.0k |
| NORDEA INVESTMENT MANAGEMENT AB 0.01% of their portfolio | 257.4k $5.6m | Added +28.3k |
| Altrius Capital Management Inc 1.10% of their portfolio | 252.0k $5.5m | Added +37.2k |
| Alpha Omega Wealth Management LLC 0.85% of their portfolio | 239.7k $5.2m | Added +67.3k |
| Goelzer Investment Management, Inc. 0.25% of their portfolio | 239.0k $5.2m | Reduced -2.4k |
| GAMCO INVESTORS, INC. ET AL 0.05% of their portfolio | 239.0k $5.2m | Unchanged |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 238.1k $5.2m | Reduced -12.5k |
| LPL Financial LLC 0.00% of their portfolio | 235.4k $5.1m | Added +32.7k |
| LAZARD ASSET MANAGEMENT LLC 0.01% of their portfolio | 230.4k $5.0m | Added +61.7k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.01% of their portfolio | 225.2k $4.9m | Unchanged |
| Asset Management One Co., Ltd. 0.01% of their portfolio | 222.8k $4.9m | Added +6.8k |
| CAXTON ASSOCIATES LLP 0.11% of their portfolio | 214.3k $4.7m | Reduced -14.8k |