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 ($25.2m this quarter). Holder counts are more reliable. Shares outstanding: 215.4m as of 2026-01-30, 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 ≈ $23.30. Options: 2 managers hold calls ($69.8k notional), 2 hold puts ($30.3k).
Trends to Q4 2025
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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2024 | 251 | 236 |
| 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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2025 | $2.2m | $5.5m | 2.47 |
| Q2 2025 | $1.4m | $663.3k | 0.47 |
| Q3 2025 | $3.2m | $1.5m | 0.46 |
| Q4 2025 | $69.8k | $30.3k | 0.43 |
Biggest buyers
| BANK OF MONTREAL /CAN/ | Added | +7.7m |
| FULLER & THALER ASSET MANAGEMENT, INC. | Added | +6.5m |
| AMERICAN CENTURY COMPANIES INC | Added | +3.1m |
| Caisse de depot et placement du Quebec | Added | +2.4m |
| DIMENSIONAL FUND ADVISORS LP | Added | +1.3m |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Added | +1.3m |
| Covalis Capital LLP | Added | +1.1m |
| Qube Research & Technologies Ltd | Added | +891.2k |
| Pacer Advisors, Inc. | Added | +770.0k |
| RENAISSANCE TECHNOLOGIES LLC | Added | +768.3k |
Biggest sellers
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -12.5m |
| JPMORGAN CHASE & CO | Reduced | -8.7m |
| Epoch Investment Partners, Inc. | Reduced | -2.2m |
| TD Asset Management Inc | Reduced | -1.6m |
| UBS Group AG | Reduced | -1.5m |
| DEPRINCE RACE & ZOLLO INC | Sold out | -928.7k |
| Gotham Asset Management, LLC | Reduced | -837.0k |
| PRUDENTIAL FINANCIAL INC | Reduced | -653.8k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Reduced | -474.0k |
| LOS ANGELES CAPITAL MANAGEMENT LLC | Reduced | -451.5k |
Biggest calls
| GROUP ONE TRADING LLC | Added | $67.5k2.9k shares |
| SIMPLEX TRADING, LLC | Reduced | $2.3k100 shares |
Biggest puts
| GROUP ONE TRADING LLC | New | $27.9k1.2k shares |
| SIMPLEX TRADING, LLC | Reduced | $2.3k100 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 Q4 2025
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 |
|---|---|---|---|---|---|
| Q1 2024 | 0 | — | 4 | $1.6m | — |
| 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 | — | — |
None reported in Q4 2025.
Holders, Q4 2025
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.01% of their portfolio | 21.6m $501.7m | Reduced -165.7k |
| BlackRock, Inc. 0.01% of their portfolio | 20.5m $477.4m | Reduced -92.3k |
| FULLER & THALER ASSET MANAGEMENT, INC. 0.52% of their portfolio | 13.1m $304.9m | Added +6.5m |
| AMERICAN CENTURY COMPANIES INC 0.12% of their portfolio | 9.8m $228.8m | Added +3.1m |
| ARIEL INVESTMENTS, LLC 1.98% of their portfolio | 7.9m $183.6m | Added +671.8k |
| BANK OF MONTREAL /CAN/ 0.07% of their portfolio | 7.7m $179.8m | Added +7.7m |
| STATE STREET CORP 0.01% of their portfolio | 7.1m $164.6m | Reduced -365.9k |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 6.6m $154.3m | Added +1.3m |
| Boston Partners 0.14% of their portfolio | 5.8m $135.1m | Reduced -106.7k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 5.7m $132.3m | Reduced -33.1k |
| DISCIPLINED GROWTH INVESTORS INC /MN 2.14% of their portfolio | 4.8m $111.8m | Added +66.6k |
| JPMORGAN CHASE & CO 0.01% of their portfolio | 4.8m $111.6m | Reduced -8.7m |
| MORGAN STANLEY 0.00% of their portfolio | 3.3m $76.7m | Reduced -374.2k |
| Caisse de depot et placement du Quebec 0.12% of their portfolio | 3.1m $73.2m | Added +2.4m |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% of their portfolio | 2.7m $62.4m | Reduced -474.0k |
| TD Asset Management Inc 0.05% of their portfolio | 2.6m $60.2m | Reduced -1.6m |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.03% of their portfolio | 2.5m $57.2m | Added +1.3m |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 2.4m $55.3m | Added +6.2k |
| WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio | 2.3m $53.5m | Reduced -12.5m |
| NORGES BANK 0.01% of their portfolio | 2.3m $52.8m | Not comparable |
| Bank of New York Mellon Corp 0.01% of their portfolio | 2.2m $51.1m | Reduced -109.5k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 2.2m $50.3m | Reduced -18.6k |
| WEST MICHIGAN ADVISORS, LLC 9.58% of their portfolio | 1.8m $41.7m | Added +144 |
| Covalis Capital LLP 3.15% of their portfolio | 1.7m $40.4m | Added +1.1m |
| RENAISSANCE TECHNOLOGIES LLC 0.06% of their portfolio | 1.7m $40.2m | Added +768.3k |
| MILLENNIUM MANAGEMENT LLC 0.03% of their portfolio | 1.7m $39.4m | Reduced -46.9k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 1.6m $38.2m | Reduced -70.8k |
| UBS Group AG 0.01% of their portfolio | 1.6m $37.8m | Reduced -1.5m |
| CITADEL ADVISORS LLC 0.03% of their portfolio | 1.6m $37.3m | Added +743.8k |
| Qube Research & Technologies Ltd 0.05% of their portfolio | 1.6m $36.8m | Added +891.2k |
| Epoch Investment Partners, Inc. 0.20% of their portfolio | 1.5m $34.5m | Reduced -2.2m |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.11% of their portfolio | 1.4m $32.6m | Added +763.4k |
| Bridgewater Associates, LP 0.11% of their portfolio | 1.3m $30.2m | Added +346.6k |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 1.2m $27.5m | Reduced -93.1k |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.09% of their portfolio | 1.1m $26.5m | Reduced -451.5k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 1.1m $24.5m | Reduced -360.8k |
| Janney Montgomery Scott LLC 0.05% of their portfolio | 979.0k $22.8m | Reduced -151.6k |
| EUBEL BRADY & SUTTMAN ASSET MANAGEMENT INC 2.19% of their portfolio | 838.3k $19.5m | Reduced -51.3k |
| Triodos Investment Management BV 1.36% of their portfolio | 801.0k $18.9m | Unchanged |
| Pacer Advisors, Inc. 0.05% of their portfolio | 799.2k $18.6m | Added +770.0k |
| RAYMOND JAMES FINANCIAL INC 0.01% of their portfolio | 795.6k $18.5m | Added +218.9k |
| FIRST TRUST ADVISORS LP 0.01% of their portfolio | 760.5k $17.7m | Reduced -166.3k |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. 0.15% of their portfolio | 739.2k $17.2m | Reduced -186.6k |
| Quantinno Capital Management LP 0.03% of their portfolio | 723.9k $16.8m | Added +302.7k |
| Global Alpha Capital Management Ltd. 1.01% of their portfolio | 708.4k $16.5m | Reduced -165.7k |
| SCHWERIN BOYLE CAPITAL MANAGEMENT INC 1.77% of their portfolio | 695.7k $16.2m | Unchanged |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 695.0k $16.2m | Reduced -13.6k |
| ALPS ADVISORS INC 0.09% of their portfolio | 688.9k $16.0m | Reduced -41.5k |
| Leeward Investments, LLC - MA 0.77% of their portfolio | 655.8k $15.3m | Reduced -14.9k |
| SPEECE THORSON CAPITAL GROUP INC 3.28% of their portfolio | 650.9k $15.1m | Reduced -38.7k |
| Retirement Systems of Alabama 0.05% of their portfolio | 647.8k $15.1m | Reduced -2.6k |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 0.04% of their portfolio | 616.6k $14.3m | Reduced -52.8k |
| Freestone Grove Partners LP 0.10% of their portfolio | 615.4k $14.3m | Added +565.8k |
| AMERICAN CAPITAL MANAGEMENT INC 0.60% of their portfolio | 579.9k $13.5m | Reduced -17.1k |
| Man Group plc 0.03% of their portfolio | 563.4k $13.1m | Added +168.8k |
| Trexquant Investment LP 0.11% of their portfolio | 541.8k $12.6m | Added +155.7k |
| Gotham Asset Management, LLC 0.04% of their portfolio | 524.3k $12.2m | Reduced -837.0k |
| Connor, Clark & Lunn Investment Management Ltd. 0.03% of their portfolio | 488.6k $11.4m | Added +186.7k |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 479.0k $11.1m | Added +17.7k |
| TWO SIGMA INVESTMENTS, LP 0.02% of their portfolio | 477.9k $11.1m | New |
| Invesco Ltd. 0.00% of their portfolio | 471.4k $11.0m | Added +71.1k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 471.1k $11.0m | Reduced -16.6k |
| Hendershot Investments Inc. 1.31% of their portfolio | 442.7k $10.3m | Reduced -43.5k |
| California Public Employees Retirement System 0.01% of their portfolio | 441.7k $10.3m | Added +33.3k |
| Swiss National Bank 0.01% of their portfolio | 432.8k $10.1m | Reduced -3.1k |
| Well Done, LLC 1.41% of their portfolio | 405.6k $9.4m | Reduced -2.9k |
| CIDEL ASSET MANAGEMENT INC 0.66% of their portfolio | 401.2k $9.3m | Reduced -49.6k |
| RICE HALL JAMES & ASSOCIATES, LLC 0.51% of their portfolio | 395.9k $9.2m | Reduced -16.1k |
| Nitorum Capital, L.P. 2.03% of their portfolio | 394.9k $9.2m | Reduced -69.9k |
| Nuveen, LLC 0.00% of their portfolio | 392.6k $9.1m | Reduced -16.3k |
| BARCLAYS PLC 0.00% of their portfolio | 392.3k $9.1m | Added +166.5k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 384.7k $9.0m | Added +206.0k |
| THOMPSON SIEGEL & WALMSLEY LLC 0.15% of their portfolio | 377.5k $8.8m | Added +137.2k |
| DekaBank Deutsche Girozentrale 0.02% of their portfolio | 375.3k $14.2m | Unchanged |
| SYSTEMATIC FINANCIAL MANAGEMENT LP 0.21% of their portfolio | 374.5k $8.7m | Reduced -4.7k |
| Legal & General Group Plc 0.00% of their portfolio | 364.6k $8.5m | Reduced -84.0k |
| Woodline Partners LP 0.03% of their portfolio | 355.3k $8.3m | Reduced -205.4k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 352.8k $8.2m | Added +71.8k |
| South Dakota Investment Council 0.15% of their portfolio | 345.1k $8.0m | Added +111.5k |
| NORTH POINT PORTFOLIO MANAGERS CORP/OH 1.28% of their portfolio | 324.3k $7.5m | Reduced -10.8k |
| TUDOR INVESTMENT CORP ET AL 0.04% of their portfolio | 323.4k $7.5m | New |
| Leith Wheeler Investment Counsel Ltd. 0.53% of their portfolio | 301.2k $7.0m | Added +17.6k |
| VAN ECK ASSOCIATES CORP 0.01% of their portfolio | 289.0k $6.7m | Added +5.4k |
| Quantbot Technologies LP 0.22% of their portfolio | 288.1k $6.7m | Added +120.2k |
| Public Sector Pension Investment Board 0.02% of their portfolio | 271.1k $6.3m | Added +122.6k |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 269.1k $6.3m | Added +236.2k |
| SEIZERT CAPITAL PARTNERS, LLC 0.26% of their portfolio | 267.9k $6.2m | New |
| XXEC, Inc. 6.14% of their portfolio | 263.9k $6.1m | Reduced -36.4k |
| MAC Alpha Capital Management, LP 3.36% of their portfolio | 262.7k $6.1m | First filing |
| TEACHER RETIREMENT SYSTEM OF TEXAS 0.02% of their portfolio | 259.3k $6.0m | Added +57.5k |
| Snowden Capital Advisors LLC 0.16% of their portfolio | 259.1k $6.0m | Reduced -8.6k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 250.6k $5.8m | Added +40.4k |
| CAMBIAR INVESTORS LLC 0.26% of their portfolio | 246.0k $5.7m | Reduced -32.9k |
| Creative Planning 0.00% of their portfolio | 244.5k $5.7m | Added +58.1k |
| Goelzer Investment Management, Inc. 0.26% of their portfolio | 241.4k $5.6m | Reduced -17.6k |
| Squarepoint Ops LLC 0.01% of their portfolio | 239.7k $5.6m | Added +57.8k |
| GAMCO INVESTORS, INC. ET AL 0.05% of their portfolio | 239.0k $5.6m | Added +13.5k |
| BANK OF NOVA SCOTIA 0.01% of their portfolio | 236.9k $5.5m | Added +118.7k |
| Chevy Chase Trust Holdings, LLC 0.01% of their portfolio | 233.6k $5.4m | Reduced -6.7k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 232.4k $5.4m | Added +59.0k |