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 ($22.5m this quarter). Holder counts are more reliable. Shares outstanding: 224.8m as of 2025-04-25, 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 ≈ $23.31. Options: 9 managers hold calls ($2.2m notional), 7 hold puts ($5.5m).
Trends to Q1 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 |
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 2023 | 215 | 221 |
| Q3 2023 | 244 | 227 |
| Q4 2023 | 229 | 228 |
| Q1 2024 | 251 | 236 |
| Q2 2024 | 270 | 242 |
| Q3 2024 | 237 | 262 |
| Q4 2024 | 241 | 257 |
| Q1 2025 | 264 | 257 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2024 | $6.8m | $6.2m | 0.91 |
| Q3 2024 | $9.9m | $4.5m | 0.45 |
| Q4 2024 | $5.2m | $1.0m | 0.20 |
| Q1 2025 | $2.2m | $5.5m | 2.47 |
Biggest buyers
| FULLER & THALER ASSET MANAGEMENT, INC. | Added | +2.9m |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Added | +2.7m |
| AMERICAN CENTURY COMPANIES INC | Added | +2.5m |
| JPMORGAN CHASE & CO | Added | +2.4m |
| Burgundy Asset Management Ltd. | Added | +2.2m |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Added | +1.2m |
| VANGUARD GROUP INC | Added | +886.8k |
| ARIEL INVESTMENTS, LLC | Added | +687.3k |
| Bridgewater Associates, LP | Added | +663.4k |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | New | +519.4k |
Biggest sellers
| COOKE & BIELER LP | Sold out | -3.8m |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -2.8m |
| BROWN ADVISORY INC | Reduced | -1.2m |
| Grantham, Mayo, Van Otterloo & Co. LLC | Reduced | -1.2m |
| CITADEL ADVISORS LLC | Reduced | -1.2m |
| Artisan Partners Limited Partnership | Sold out | -1.2m |
| REINHART PARTNERS, LLC. | Sold out | -1.1m |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. | Reduced | -873.6k |
| SCHRODER INVESTMENT MANAGEMENT GROUP | Sold out | -838.9k |
| Scharf Investments, LLC | Reduced | -788.7k |
Biggest calls
| CITADEL ADVISORS LLC | Reduced | $782.9k33.6k shares |
| Walleye Trading LLC | Added | $410.1k17.6k shares |
| WOLVERINE TRADING, LLC | New | $271.4k11.6k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $261.0k11.2k shares |
| IMC-Chicago, LLC | Reduced | $247.0k10.6k shares |
| GROUP ONE TRADING LLC | New | $107.2k4.6k shares |
| OAK FAMILY ADVISORS, LLC | New | $93.2k4.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $55.0k2.4k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| PEAK6 LLC | New | $2.3m100.8k shares |
| SIMPLEX TRADING, LLC | Added | $1.1m47.0k shares |
| CITADEL ADVISORS LLC | Added | $787.5k33.8k shares |
| MILLENNIUM MANAGEMENT LLC | New | $484.6k20.8k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | $435.7k18.7k shares |
| IMC-Chicago, LLC | New | $356.5k15.3k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 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 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 |
|---|---|---|---|---|---|
| Q2 2023 | 0 | — | 3 | $276.1k | — |
| Q3 2023 | 0 | — | 2 | $295.1k | — |
| Q4 2023 | 0 | — | 0 | — | — |
| Q1 2024 | 0 | — | 4 | $1.6m | — |
| Q2 2024 | 0 | — | 2 | $162.5k | — |
| Q3 2024 | 0 | — | 0 | — | — |
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
None reported in Q1 2025.
Holders, Q1 2025
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.01% of their portfolio | 22.6m $526.2m | Added +886.8k |
| BlackRock, Inc. 0.01% of their portfolio | 21.2m $494.0m | Added +385.8k |
| WELLINGTON MANAGEMENT GROUP LLP 0.07% of their portfolio | 15.3m $355.4m | Reduced -2.8m |
| Burgundy Asset Management Ltd. 1.87% of their portfolio | 7.7m $180.1m | Added +2.2m |
| JPMORGAN CHASE & CO 0.01% of their portfolio | 7.7m $178.8m | Added +2.4m |
| STATE STREET CORP 0.01% of their portfolio | 7.4m $171.6m | Added +36.6k |
| EdgePoint Investment Group Inc. 1.36% of their portfolio | 7.2m $168.3m | Reduced -134.3k |
| ARIEL INVESTMENTS, LLC 1.94% of their portfolio | 7.1m $165.0m | Added +687.3k |
| Beutel, Goodman & Co Ltd. 0.81% of their portfolio | 6.1m $141.4m | Added +22.8k |
| Boston Partners 0.17% of their portfolio | 5.9m $137.5m | Reduced -151.7k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 5.7m $131.9m | Added +236.8k |
| TD Asset Management Inc 0.11% of their portfolio | 5.2m $121.0m | Reduced -221.8k |
| DISCIPLINED GROWTH INVESTORS INC /MN 2.38% of their portfolio | 4.9m $114.8m | Added +143.7k |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 4.7m $108.5m | Added +160.4k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.03% of their portfolio | 4.6m $106.9m | Added +2.7m |
| Epoch Investment Partners, Inc. 0.52% of their portfolio | 4.3m $100.7m | Reduced -115.3k |
| AMERICAN CENTURY COMPANIES INC 0.06% of their portfolio | 4.1m $96.0m | Added +2.5m |
| MORGAN STANLEY 0.01% of their portfolio | 4.0m $93.1m | Added +253.9k |
| FULLER & THALER ASSET MANAGEMENT, INC. 0.31% of their portfolio | 3.4m $80.3m | Added +2.9m |
| Bank of New York Mellon Corp 0.01% of their portfolio | 2.4m $56.9m | Reduced -345.9k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 2.3m $52.7m | Added +26.4k |
| FIRST TRUST ADVISORS LP 0.05% of their portfolio | 2.3m $52.6m | Reduced -80.9k |
| NORGES BANK 0.01% of their portfolio | 2.2m $50.6m | Added +361.6k |
| AMERICAN CAPITAL MANAGEMENT INC 1.98% of their portfolio | 2.1m $48.6m | Reduced -20.6k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.17% of their portfolio | 1.9m $44.6m | Added +1.2m |
| WEST MICHIGAN ADVISORS, LLC 13.86% of their portfolio | 1.8m $41.8m | Added +274.4k |
| UBS Group AG 0.01% of their portfolio | 1.8m $41.6m | Reduced -57.8k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 1.6m $37.8m | Added +62.1k |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. 0.36% of their portfolio | 1.5m $34.9m | Reduced -873.6k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 1.3m $30.8m | Added +23.5k |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 1.3m $30.7m | Added +110.3k |
| Janney Montgomery Scott LLC 0.07% of their portfolio | 1.1m $24.7m | Added +175.9k |
| CITADEL ADVISORS LLC 0.02% of their portfolio | 1.0m $24.4m | Reduced -1.2m |
| Scharf Investments, LLC 0.73% of their portfolio | 1.0m $24.3m | Reduced -788.7k |
| RAYMOND JAMES FINANCIAL INC 0.01% of their portfolio | 967.5k $22.5m | Added +115.4k |
| Bridgewater Associates, LP 0.09% of their portfolio | 867.5k $20.2m | Added +663.4k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 826.5k $19.3m | Added +375.0k |
| Triodos Investment Management BV 1.54% of their portfolio | 801.0k $18.7m | Unchanged |
| Invesco Ltd. 0.00% of their portfolio | 753.0k $17.5m | Added +68.6k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 691.3k $16.1m | Reduced -123 |
| SPEECE THORSON CAPITAL GROUP INC 3.28% of their portfolio | 682.7k $15.9m | Added +105.4k |
| EUBEL BRADY & SUTTMAN ASSET MANAGEMENT INC 2.06% of their portfolio | 673.2k $15.7m | Added +114.0k |
| Leeward Investments, LLC - MA 0.82% of their portfolio | 658.3k $15.3m | Reduced -23.7k |
| ALPS ADVISORS INC 0.09% of their portfolio | 633.0k $14.7m | Added +45.5k |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 0.04% of their portfolio | 629.4k $14.7m | Added +71.3k |
| Retirement Systems of Alabama 0.06% of their portfolio | 607.3k $14.1m | Added +15.0k |
| Hendershot Investments Inc. 1.90% of their portfolio | 598.4k $13.9m | Reduced -60.7k |
| SPRUCEGROVE INVESTMENT MANAGEMENT LTD 1.48% of their portfolio | 592.4k $13.8m | Added +103.5k |
| Qube Research & Technologies Ltd 0.02% of their portfolio | 555.7k $12.9m | Added +62.4k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.02% of their portfolio | 550.0k $12.8m | Unchanged |
| VOYA INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 546.1k $12.7m | Added +310.6k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 523.5k $12.2m | Added +1.9k |
| CIDEL ASSET MANAGEMENT INC 0.79% of their portfolio | 520.1k $12.1m | Added +108.9k |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC 0.04% of their portfolio | 519.4k $12.1m | New |
| SCHWERIN BOYLE CAPITAL MANAGEMENT INC 1.25% of their portfolio | 519.2k $12.1m | Added +91.2k |
| Nuveen, LLC 0.00% of their portfolio | 503.5k $11.7m | First filing |
| Nitorum Capital, L.P. 1.64% of their portfolio | 501.4k $11.7m | Reduced -176.3k |
| SEGALL BRYANT & HAMILL, LLC 0.18% of their portfolio | 492.9k $11.5m | Added +29.8k |
| Lightrock Netherlands B.V. 3.01% of their portfolio | 490.4k $11.4m | Added +163.3k |
| Legal & General Group Plc 0.00% of their portfolio | 478.4k $11.1m | Added +5.0k |
| RICE HALL JAMES & ASSOCIATES, LLC 0.62% of their portfolio | 451.0k $10.5m | Reduced -3.9k |
| Swiss National Bank 0.01% of their portfolio | 440.7k $10.3m | Reduced -12.1k |
| Summit Street Capital Management, LLC 1.65% of their portfolio | 424.5k $9.9m | Unchanged |
| Quantbot Technologies LP 0.31% of their portfolio | 419.6k $9.8m | Added +346.2k |
| SEI INVESTMENTS CO 0.01% of their portfolio | 408.0k $9.5m | Added +97.1k |
| Thematics Asset Management 0.48% of their portfolio | 406.1k $9.5m | Reduced -44.9k |
| Well Done, LLC 2.07% of their portfolio | 398.1k $11.4m | Reduced -301 |
| NATIXIS ADVISORS, LLC 0.02% of their portfolio | 394.9k $9.2m | Reduced -38.5k |
| WEDGE CAPITAL MANAGEMENT L L P/NC 0.18% of their portfolio | 389.8k $9.1m | Added +5.3k |
| DekaBank Deutsche Girozentrale 0.02% of their portfolio | 375.3k $8.7m | Unchanged |
| BANK OF MONTREAL /CAN/ 0.00% of their portfolio | 373.8k $8.7m | Added +3.5k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 371.8k $8.7m | Reduced -197.8k |
| SYSTEMATIC FINANCIAL MANAGEMENT LP 0.24% of their portfolio | 368.0k $8.6m | Added +39.5k |
| NORTH POINT PORTFOLIO MANAGERS CORP/OH 1.43% of their portfolio | 349.0k $8.1m | Reduced -1.6k |
| COMMONWEALTH EQUITY SERVICES, LLC 0.01% of their portfolio | 339.8k $7.9m | Added +71.5k |
| THOMPSON SIEGEL & WALMSLEY LLC 0.13% of their portfolio | 336.3k $7.8m | New |
| California Public Employees Retirement System 0.01% of their portfolio | 333.1k $7.8m | Reduced -19.0k |
| VAN ECK ASSOCIATES CORP 0.01% of their portfolio | 331.6k $7.7m | Added +25.6k |
| Holocene Advisors, LP 0.02% of their portfolio | 323.5k $7.5m | Added +128.6k |
| Birch Hill Investment Advisors LLC 0.35% of their portfolio | 316.8k $7.4m | Reduced -179.7k |
| Leith Wheeler Investment Counsel Ltd. 0.50% of their portfolio | 309.0k $7.2m | Added +4.3k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 296.4k $6.9m | Reduced -4.9k |
| XXEC, Inc. 5.93% of their portfolio | 293.8k $6.8m | Added +133.9k |
| Edgestream Partners, L.P. 0.23% of their portfolio | 289.5k $6.7m | Added +112.6k |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 286.8k $6.7m | Added +260.4k |
| CAMBIAR INVESTORS LLC 0.27% of their portfolio | 278.3k $6.5m | Reduced -47.8k |
| Motley Fool Wealth Management, LLC 0.38% of their portfolio | 274.7k $6.4m | Reduced -23.0k |
| Goelzer Investment Management, Inc. 0.37% of their portfolio | 270.6k $6.3m | Reduced -3.4k |
| Thrivent Financial for Lutherans 0.01% of their portfolio | 269.0k $6.3m | Reduced -42.1k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.01% of their portfolio | 268.0k $6.2m | Reduced -12.1k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.02% of their portfolio | 264.8k $6.2m | Added +110.9k |
| Corebridge Financial, Inc. 0.03% of their portfolio | 251.2k $5.9m | Reduced -6.2k |
| Invenomic Capital Management LP 0.29% of their portfolio | 245.0k $5.7m | Added +118.1k |
| Baird Financial Group, Inc. 0.01% of their portfolio | 244.6k $5.7m | Added +553 |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 243.3k $5.7m | Reduced -32.8k |
| TOKIO MARINE ASSET MANAGEMENT CO LTD 0.20% of their portfolio | 241.0k $5.6m | Unchanged |
| Motley Fool Asset Management LLC 0.31% of their portfolio | 240.9k $5.6m | Reduced -9.1k |
| TEACHER RETIREMENT SYSTEM OF TEXAS 0.02% of their portfolio | 225.2k $5.2m | Added +15.9k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 222.0k $5.2m | Reduced -2.3k |
| GAMCO INVESTORS, INC. ET AL 0.06% of their portfolio | 221.1k $5.2m | Added +5.6k |