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 ($18.7m this quarter). Holder counts are more reliable. Shares outstanding: 210.7m as of 2026-07-24, 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 ≈ $25.25. Options: 4 managers hold calls ($806.1k notional), 4 hold puts ($1.2m).
Trends to Q2 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 |
| Q2 2026 | 531 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| 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 |
| Q2 2026 | 278 | 211 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $3.2m | $1.5m | 0.46 |
| Q4 2025 | $69.8k | $30.3k | 0.43 |
| Q1 2026 | $2.1m | $327.8k | 0.16 |
| Q2 2026 | $806.1k | $1.2m | 1.47 |
Biggest buyers
| DIMENSIONAL FUND ADVISORS LP | Added | +1.6m |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | New | +1.2m |
| FULLER & THALER ASSET MANAGEMENT, INC. | Added | +1.0m |
| DEPRINCE RACE & ZOLLO INC | New | +924.9k |
| Freestone Grove Partners LP | Added | +869.8k |
| DANSKE BANK A/S | New | +707.2k |
| ALGERT GLOBAL LLC | New | +689.5k |
| UBS Group AG | Added | +616.7k |
| Trexquant Investment LP | Added | +603.4k |
| XXEC, Inc. | Added | +566.2k |
Biggest sellers
| MILLENNIUM MANAGEMENT LLC | Reduced | -1.6m |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -1.4m |
| Caisse de depot et placement du Quebec | Reduced | -677.1k |
| Gotham Asset Management, LLC | Reduced | -621.6k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Reduced | -616.3k |
| BANK OF AMERICA CORP /DE/ | Reduced | -353.3k |
| Janney Montgomery Scott LLC | Reduced | -344.1k |
| RAYMOND JAMES FINANCIAL INC | Reduced | -325.2k |
| Connor, Clark & Lunn Investment Management Ltd. | Reduced | -236.2k |
| Pacer Advisors, Inc. | Reduced | -209.8k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | $437.2k17.3k shares |
| CITADEL ADVISORS LLC | Reduced | $252.7k10.0k shares |
| Walleye Capital LLC | Reduced | $63.2k2.5k shares |
| SIMPLEX TRADING, LLC | Reduced | $53.1k2.1k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | $394.2k15.6k shares |
| IMC-Chicago, LLC | New | $366.4k14.5k shares |
| Walleye Capital LLC | Added | $343.7k13.6k shares |
| SIMPLEX TRADING, LLC | Added | $78.3k3.1k 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 since 1 Apr 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 |
|---|---|---|---|---|---|
| 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 | — |
| Q2 2026 | 0 | — | 4 | $495.1k | — |
| Q3 2026 | 0 | — | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-05-15 | WALKER BRIAN C Director | Sold | $136.5k5.9k shares |
| 2026-05-15 | ANDERSON JOSEPH B JR Director | Sold | $136.5k5.9k shares |
| 2026-05-05 | BROWN LESLIE L Director | Sold | $246.4k10.8k shares |
| 2026-04-30 | Schaum Richard O Director | Sold | $112.2k4.8k 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, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 21.8m $550.3m | Added +478.1k |
| AMERICAN CENTURY COMPANIES INC 0.12% of their portfolio | 11.0m $278.6m | Added +422.3k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.01% of their portfolio | 10.3m $260.1m | Added +33.7k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 9.6m $242.9m | Reduced -90.3k |
| DIMENSIONAL FUND ADVISORS LP 0.04% of their portfolio | 9.0m $228.2m | Added +1.6m |
| ARIEL INVESTMENTS, LLC 2.09% of their portfolio | 8.3m $210.0m | Reduced -32.6k |
| FULLER & THALER ASSET MANAGEMENT, INC. 0.56% of their portfolio | 8.1m $205.0m | Added +1.0m |
| BANK OF MONTREAL /CAN/ 0.07% of their portfolio | 7.3m $185.5m | Reduced -58.3k |
| STATE STREET CORP 0.01% of their portfolio | 7.2m $181.1m | Added +85.4k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 6.2m $156.1m | Added +168.4k |
| Boston Partners 0.13% of their portfolio | 5.7m $145.1m | Added +53.1k |
| DISCIPLINED GROWTH INVESTORS INC /MN 1.95% of their portfolio | 4.6m $115.3m | Added +41.8k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 4.1m $102.6m | Added +286.3k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.04% of their portfolio | 3.5m $87.8m | Added +477.8k |
| Caisse de depot et placement du Quebec 0.11% of their portfolio | 3.2m $79.9m | Reduced -677.1k |
| MORGAN STANLEY 0.00% of their portfolio | 3.0m $76.6m | Reduced -14.2k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 2.4m $60.3m | Reduced -51.0k |
| SEIZERT CAPITAL PARTNERS, LLC 2.44% of their portfolio | 2.3m $59.0m | Added +347.2k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 2.2m $54.9m | Added +3.4k |
| UBS Group AG 0.01% of their portfolio | 2.1m $53.7m | Added +616.7k |
| XXEC, Inc. 6.66% of their portfolio | 2.1m $51.3m | Added +566.2k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 2.1m $52.0m | Reduced -50.8k |
| NORGES BANK 0.01% of their portfolio | 2.0m $50.3m | Not comparable |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% of their portfolio | 1.9m $48.8m | Reduced -144.8k |
| Freestone Grove Partners LP 0.31% of their portfolio | 1.9m $47.0m | Added +869.8k |
| WEST MICHIGAN ADVISORS, LLC 8.68% of their portfolio | 1.8m $45.7m | Added +14.7k |
| RENAISSANCE TECHNOLOGIES LLC 0.06% of their portfolio | 1.7m $42.2m | Added +158.5k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 1.4m $36.7m | Reduced -131.5k |
| Balyasny Asset Management L.P. 0.06% of their portfolio | 1.4m $34.3m | Reduced -21.1k |
| CITADEL ADVISORS LLC 0.02% of their portfolio | 1.3m $34.1m | Added +123.0k |
| VANGUARD FIDUCIARY TRUST CO 0.01% of their portfolio | 1.3m $34.0m | Reduced -19.3k |
| FIRST TRUST ADVISORS LP 0.02% of their portfolio | 1.3m $31.8m | Added +104.1k |
| Trexquant Investment LP 0.19% of their portfolio | 1.2m $31.5m | Added +603.4k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.20% of their portfolio | 1.2m $30.0m | New |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 1.2m $29.2m | Reduced -353.3k |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ 0.14% of their portfolio | 1.1m $27.9m | Added +87.0k |
| EUBEL BRADY & SUTTMAN ASSET MANAGEMENT INC 3.04% of their portfolio | 1.0m $25.6m | Reduced -14.8k |
| Qube Research & Technologies Ltd 0.03% of their portfolio | 976.3k $24.7m | Reduced -133.7k |
| Triodos Investment Management BV 1.45% of their portfolio | 941.0k $23.8m | Added +140.0k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 931.3k $23.5m | Reduced -32.8k |
| DEPRINCE RACE & ZOLLO INC 0.39% of their portfolio | 924.9k $23.4m | New |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.09% of their portfolio | 854.3k $21.6m | Reduced -616.3k |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 846.4k $21.4m | Reduced -1.4m |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. 0.15% of their portfolio | 781.7k $19.8m | Added +6.2k |
| DANSKE BANK A/S 0.04% of their portfolio | 707.2k $17.9m | New |
| Invesco Ltd. 0.00% of their portfolio | 706.6k $17.9m | Added +267.4k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 700.0k $17.7m | Added +500.6k |
| Janney Montgomery Scott LLC 0.03% of their portfolio | 692.4k $17.5m | Reduced -344.1k |
| ALGERT GLOBAL LLC 0.21% of their portfolio | 689.5k $17.4m | New |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 682.4k $17.2m | Reduced -1.7k |
| Gotham Asset Management, LLC 0.04% of their portfolio | 671.0k $17.0m | Reduced -621.6k |
| Pacer Advisors, Inc. 0.04% of their portfolio | 670.3k $16.9m | Reduced -209.8k |
| ALPS ADVISORS INC 0.08% of their portfolio | 661.1k $16.7m | Added +19.5k |
| CIDEL ASSET MANAGEMENT INC 0.80% of their portfolio | 655.7k $16.6m | Added +8.3k |
| Creative Planning 0.01% of their portfolio | 653.5k $16.5m | Added +298.5k |
| Retirement Systems of Alabama 0.05% of their portfolio | 645.1k $16.3m | Reduced -48.2k |
| Quantinno Capital Management LP 0.02% of their portfolio | 633.9k $16.0m | Added +78.6k |
| AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 628.2k $15.9m | Reduced -34.6k |
| SCHWERIN BOYLE CAPITAL MANAGEMENT INC 1.92% of their portfolio | 621.3k $15.7m | Unchanged |
| Leeward Investments, LLC - MA 0.71% of their portfolio | 616.4k $15.6m | Reduced -20.6k |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 0.05% of their portfolio | 606.4k $15.3m | Added +27.8k |
| SPEECE THORSON CAPITAL GROUP INC 3.23% of their portfolio | 597.2k $15.1m | Reduced -11.8k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 593.8k $15.0m | Reduced -325.2k |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC 0.04% of their portfolio | 575.1k $14.5m | Added +22.8k |
| BARCLAYS PLC 0.00% of their portfolio | 566.9k $14.3m | Added +48.5k |
| AMERICAN CAPITAL MANAGEMENT INC 0.60% of their portfolio | 531.2k $13.4m | Reduced -3.1k |
| Public Sector Pension Investment Board 0.04% of their portfolio | 530.6k $13.4m | Reduced -31.5k |
| SYSTEMATIC FINANCIAL MANAGEMENT LP 0.26% of their portfolio | 524.6k $13.3m | Added +160.2k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 483.5k $12.2m | Reduced -5.3k |
| Nuveen, LLC 0.00% of their portfolio | 469.5k $11.9m | Added +20.4k |
| California Public Employees Retirement System 0.01% of their portfolio | 462.4k $11.7m | Added +6.7k |
| MACKENZIE FINANCIAL CORP 0.01% of their portfolio | 445.4k $11.3m | New |
| ROYCE & ASSOCIATES LP 0.09% of their portfolio | 433.4k $11.0m | Added +30.0k |
| Swiss National Bank 0.01% of their portfolio | 432.8k $10.9m | Unchanged |
| South Dakota Investment Council 0.18% of their portfolio | 425.4k $10.7m | Added +4.2k |
| RICE HALL JAMES & ASSOCIATES, LLC 0.51% of their portfolio | 417.5k $10.6m | Added +3.7k |
| MAC Alpha Capital Management, LP 4.87% of their portfolio | 416.7k $10.5m | Added +110.3k |
| Hendershot Investments Inc. 1.33% of their portfolio | 402.0k $10.2m | Reduced -39.9k |
| DekaBank Deutsche Girozentrale 0.01% of their portfolio | 375.3k $8.1m | Unchanged |
| Well Done, LLC 1.21% of their portfolio | 357.3k $9.0m | Reduced -380 |
| Leith Wheeler Investment Counsel Ltd. 0.66% of their portfolio | 344.1k $8.7m | Reduced -3.1k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.01% of their portfolio | 338.6k $8.5m | Added +239.5k |
| Chevy Chase Trust Holdings, LLC 0.02% of their portfolio | 329.9k $8.3m | Reduced -2.8k |
| Legal & General Group Plc 0.00% of their portfolio | 324.7k $8.2m | Reduced -7.8k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 316.4k $8.0m | Added +39.2k |
| TEACHER RETIREMENT SYSTEM OF TEXAS 0.02% of their portfolio | 311.5k $7.9m | Reduced -28.2k |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 310.4k $7.8m | Reduced -13.4k |
| JONES FINANCIAL COMPANIES LLLP 0.00% of their portfolio | 309.1k $7.9m | Added +122.5k |
| NORDEA INVESTMENT MANAGEMENT AB 0.01% of their portfolio | 308.7k $7.8m | Added +51.3k |
| Squarepoint Ops LLC 0.01% of their portfolio | 292.3k $7.4m | Added +144.4k |
| Man Group plc 0.01% of their portfolio | 291.3k $7.4m | Reduced -71.0k |
| SG Capital Management LLC 0.66% of their portfolio | 286.4k $7.2m | New |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 273.0k $6.9m | Reduced -56.0k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 270.4k $5.9m | Reduced -8.5k |
| Assenagon Asset Management S.A. 0.00% of their portfolio | 269.9k $6.8m | New |
| THOMPSON SIEGEL & WALMSLEY LLC 0.12% of their portfolio | 266.7k $6.7m | Reduced -156.8k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 259.3k $6.6m | Reduced -1.6m |
| Holocene Advisors, LP 0.01% of their portfolio | 258.6k $6.5m | Reduced -7.1k |
| Altrius Capital Management Inc 1.24% of their portfolio | 258.2k $6.5m | Added +6.2k |
| Snowden Capital Advisors LLC 0.15% of their portfolio | 258.0k $6.5m | Reduced -6.9k |