undamentalytics Newsletter

Nash Kevin C: insider trades

Chief financial officer, Officer at Gentex Corp. No open-market purchases and 14 sales not made under a pre-set plan, reported from May 6, 2014 to February 19, 2026.

What happened after Nash Kevin C’s sales?

After their sales, the shares moved −5.4% against the index over 12 months on average (a negative figure means selling was the right call); 62% trailed it.

With 296 insiders tested, some will look skilled or unskilled by chance alone: when we replaced each insider’s stocks with random companies bought on the same days, about 5.7 cleared the bar ahead and 23.3 behind. One record on its own proves little.

Trade by trade

Nash Kevin C: trades against the S&P 500 afterwards
MeasuredTrades countedAverage vs S&P 500MedianWent the right wayYearst-statisticp-valueEvidence
Purchases, 3 months after the report 0 — — — — — — Not enough years
Purchases, 6 months after the report 0 — — — — — — Not enough years
Purchases, 12 months after the report 0 — — — — — — Not enough years
Purchases, 12 months after the trade 0 — — — — — — Not enough years
Sales, 3 months after the report 14 +1.1% −2.5% 64% 9 0.33 0.75 No reliable evidence
Sales, 12 months after the report 13 −5.4% −7.5% 62% 8 −1.15 0.29 No reliable evidence
Sales, 12 months after the trade 13 −5.5% −5.1% 62% 8 −1.19 0.27 No reliable evidence

“Average vs S&P 500” is the stock’s return including dividends minus the index’s over the same dates, from the close on the first trading day after the report, or from the close on the trade date. Only windows that have finished are counted. For sales, a negative figure means the stock lagged after it was sold, so selling was the right call (green). “Went the right way” is the share of purchases that beat the index, or of sales that trailed it. The t-statistic uses one average per year of reports, because one person’s trades bunch into the same stock and weeks, and needs trades in at least four different years; the p-value comes from the t distribution with that number of years (with four years, a t of 2 has p = 0.14). “Some evidence” means p under 5%, “strong evidence” p under 1% over at least six years.

Companies traded

CompanyTitle on the latest filingPurchasesSalesFirst reportLatest report
Gentex Corp GNTX Chief Financial Officer014May 6, 2014February 19, 2026

Trades and what followed

Moves are against the S&P 500; green means the trade went the insider’s way.

ReportedTradedCompanyTradeValue3 months after report12 months after report12 months after trade
February 19, 2026February 17, 2026 GNTX Sale $296,887 −9.9%not yetnot yet
February 21, 2024February 20, 2024 GNTX Sale $446,040 −8.5%−48.5%−51.8%
October 2, 2020September 30, 2020 GNTX Sale $77,430 +21.1%+0.3%0.0%
October 2, 2019October 1, 2019 GNTX Sale $329,880 −0.7%−16.7%−20.4%
October 1, 2018September 27, 2018 GNTX Sale $129,000 +11.8%+26.8%+28.0%
January 31, 2018January 30, 2018 GNTX Sale $184,252 +3.5%−8.0%−5.1%
September 29, 2017September 27, 2017 GNTX Sale $85,104 −2.5%−12.5%−8.9%
April 26, 2017April 25, 2017 GNTX Sale $34,981 −19.8%−1.1%+0.8%
January 31, 2017January 30, 2017 GNTX Sale $94,970 −8.1%−9.4%−12.4%
October 26, 2016October 25, 2016 GNTX Sale $103,583 +18.2%−7.5%−6.3%
July 27, 2016July 25, 2016 GNTX Sale $113,044 −2.6%−17.8%−16.1%
October 28, 2015October 26, 2015 GNTX Sale $235,193 −6.5%+2.8%−0.8%
October 1, 2014September 29, 2014 GNTX Sale $49,248 +23.7%+12.5%+15.8%
May 6, 2014May 2, 2014 GNTX Sale $199,875 −4.0%+8.4%+5.8%

Open-market purchases and sales of at least $10,000 in companies we cover, from SEC Form 4 filings; sales made under a pre-set Rule 10b5-1 plan are not shown. “Not yet” means the window has not finished or the share price was under $5 at entry. These are the shares’ moves after each trade: they say nothing about why Nash Kevin C traded and do not suggest the use of non-public information. How every insider compares · the insider trading backtest.