GNTXNasdaq

GENTEX CORP

Alert me on GNTX

Insider buys, 6 months

Congress trades, 6 months

Signals, 6 months

Six months

After each filing

May 16 Sale WALKER BRIAN C Insider

1 week

+5.5%S&P +1.6%

1 month

+11.9%S&P +0.3%

3 months

+4.9%S&P +4.2%

6 months

Result in5 trading days

May 16 Sale ANDERSON JOSEPH B JR Insider

1 week

+5.5%S&P +1.6%

1 month

+11.9%S&P +0.3%

3 months

+4.9%S&P +4.2%

6 months

Result in5 trading days

May 5 Sale BROWN LESLIE L Insider

1 week

+0.2%S&P +2.0%

1 month

+9.2%S&P +4.6%

3 months

+5.7%S&P +6.6%

6 months

−11.5%S&P +4.7%

Apr 30 Sale Schaum Richard O Insider

1 week

−0.1%S&P +1.8%

1 month

+4.2%S&P +5.5%

3 months

+1.6%S&P +4.2%

6 months

−11.4%S&P +7.6%

Feb 20 Sale Chiodo Matthew Insider

1 week

−2.4%S&P −0.5%

1 month

−11.6%S&P −4.7%

3 months

−1.9%S&P +8.0%

6 months

−0.3%S&P +11.7%

Show all 9

Feb 20 Sale Boehm Neil Insider

1 week

−2.4%S&P −0.5%

1 month

−11.6%S&P −4.7%

3 months

−1.9%S&P +8.0%

6 months

−0.3%S&P +11.7%

Feb 20 Sale Downing Steven R Insider

1 week

−2.4%S&P −0.5%

1 month

−11.6%S&P −4.7%

3 months

−1.9%S&P +8.0%

6 months

−0.3%S&P +11.7%

Feb 20 Sale Ryan Scott P Insider

1 week

−2.4%S&P −0.5%

1 month

−11.6%S&P −4.7%

3 months

−1.9%S&P +8.0%

6 months

−0.3%S&P +11.7%

Feb 20 Sale Nash Kevin C Insider

1 week

−2.4%S&P −0.5%

1 month

−11.6%S&P −4.7%

3 months

−1.9%S&P +8.0%

6 months

−0.3%S&P +11.7%

Every purchase and sale on this ticker reported by a member of Congress or an insider, measured from the close of the first trading day after it became public to the close 1 week, 1 month, 3 months and 6 months later, each beside the S&P over the same days.

Filings for GNTX

29 held · newest 529 held · newest 2

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See all 29 filings for GNTX

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Signal history

No signal for this ticker yet. A signal is written when insider buying here scores one dot or more.

Stakes

Sep 30, 2026 Schedule 13G

Dimensional Fund Advisors LP: 5%, 10,550,621 shares

Jun 30, 2026 Schedule 13G

American Century Investment Management, Inc.: 5.2%, 11,025,677 shares

Mar 31, 2026 Schedule 13G

Vanguard Capital Management: 5.3%, 11,377,317 shares

Mar 13, 2026 Schedule 13G, amended

The Vanguard Group: 0%, 0 shares

Dec 31, 2025 Schedule 13G, amended

Wellington Management Group LLP: 1.1%, 2,300,392 shares

Schedule 13D is filed within 5 business days of crossing 5 percent by an investor who may seek to influence the company. Schedule 13G is filed by a passive holder, and a large institution has up to 45 days after the quarter end.

Government contracts, last 12 months

Awards of $10M and up, from USAspending · context, not a signal

Jun 25, 2026 Department of the Army $11.6M NEXT GENERATION INTEGRATED HEAD PROTECTION SYSTEM

Jun 25, 2026 Defense Logistics Agency $27.2M 8512203812!HELMET,GROUND TROOP

2 awards, $38.8M in the last 12 monthsOriginal awards ↗

Lobbying

Last four quarters

$60KQ4 2025

$60KQ1 2026

$60KQ2 2026

$60KQ3 2026

Unchanged from Q2 2026. Reported to the Senate each quarter by the firms it hires.Original report ↗

Read from LDA.gov between Sep 23, 2026 and Oct 13, 2026. Senate Office of Public Records cannot vouch for the data or analyses derived from these data after the data have been retrieved from LDA.gov.