GENTEX CORP (GNTX) Stock Institutional Trading Activity


GENTEX CORP (GNTX) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC, Ariel Appreciation Fund, Disciplined Growth Investors, Jensen Investment Management, and Sequoia Financial Advisors. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q2 2017Disciplined Growth InvestorsBuy33,3754,341,788$82,364
Q1 2017Disciplined Growth InvestorsSell-60,5904,308,413$91,898
Q4 2016Renaissance Technologies LLCSell-145,900340,996$6,714
Q4 2016Disciplined Growth InvestorsSell-9,8504,369,003$86,026
Q3 2016Renaissance Technologies LLCBuy24,600486,896$8,550
Q3 2016Disciplined Growth InvestorsSell-72,2754,378,853$76,893
Q2 2016Disciplined Growth InvestorsBuy94,0504,451,128$68,770
Q1 2016Disciplined Growth InvestorsSell-143,5754,357,078$68,363
Q4 2015Renaissance Technologies LLCSell-57,800462,296$7,401
Q4 2015Disciplined Growth InvestorsSell-69,6254,500,653$72,055
Q3 2015Renaissance Technologies LLCSell-836,600520,096$8,061
Q3 2015Disciplined Growth InvestorsBuy56,4504,570,278$70,839
Q2 2015Renaissance Technologies LLCBuy808,9001,356,696$22,277
Q2 2015Disciplined Growth InvestorsBuy28,8004,513,828$74,117
Q1 2015Parnassus Endeavor FundBuy50,000400,000$7,320
Q1 2015Renaissance Technologies LLCBuy361,798547,796$10,025
Q1 2015Disciplined Growth InvestorsBuy2,222,0444,485,028$82,076
Q4 2014Parnassus Endeavor FundSell-584,250350,000$12,646
Q4 2014Renaissance Technologies LLCSell-336,091185,998$6,720
Q4 2014Disciplined Growth InvestorsSell-23,8002,262,984$81,762
Q3 2014Parnassus Endeavor FundSell-4,978934,250$25,010
Q3 2014Renaissance Technologies LLCSell-599,746522,089$13,976
Q3 2014Disciplined Growth InvestorsBuy88,7962,286,784$61,217
Q2 2014Parnassus Endeavor FundSell-285,060939,228$27,322
Q2 2014Sequoia Financial AdvisorsBuy3507,608$221
Q2 2014Renaissance Technologies LLCBuy603,8991,121,835$32,634
Q2 2014Disciplined Growth InvestorsBuy222,5732,197,988$72,490
Q1 2014Parnassus Endeavor FundBuy241,224,288$38,602
Q1 2014Sequoia Financial AdvisorsBuy8087,258$229
Q1 2014Renaissance Technologies LLCBuy217,138517,936$16,331

Frequently asked questions about GNTX activity

  • Which institutional owners are buying GNTX?

    Institutional owners buying GNTX include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in GNTX activity?

    "Buy" means an investor increased their reported position in GNTX compared to the prior reporting period. This reflects growing exposure to GENTEX CORP (GNTX) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in GNTX increasing?

    Institutional interest in GNTX can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.