undamentalytics Newsletter
Sign in

Lake Christopher H: insider trades

Director at Gorman Rupp Co. No open-market purchases and 23 sales not made under a pre-set plan, reported from February 25, 2011 to August 5, 2021.

What happened after Lake Christopher H’s sales?

After their sales, the shares moved −8.8% against the index over 12 months on average (a negative figure means selling was the right call); 74% 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

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 23 −1.4% −4.8% 65% 11 −0.19 0.85 No reliable evidence
Sales, 12 months after the report 23 −8.8% −13.7% 74% 11 −2.64 0.025 Some evidence: seller right
Sales, 12 months after the trade 23 −7.6% −12.4% 70% 11 −2.29 0.045 Some evidence: seller right

“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
Gorman Rupp Co GRC —023February 25, 2011August 5, 2021

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
August 5, 2021August 5, 2021 GRC Sale $59,379 +23.7%−13.7%−13.6%
May 14, 2021May 13, 2021 GRC Sale $17,350 −7.9%−11.6%−9.7%
November 9, 2020November 9, 2020 GRC Sale $53,265 −22.7%−4.9%+0.3%
August 6, 2020August 5, 2020 GRC Sale $15,775 −2.9%−25.6%−20.9%
March 6, 2020March 5, 2020 GRC Sale $97,590 −7.2%−28.1%−22.9%
November 1, 2019October 31, 2019 GRC Sale $72,915 −7.3%−21.8%−24.2%
May 3, 2019May 3, 2019 GRC Sale $82,550 −4.7%−13.0%−12.4%
March 7, 2019March 7, 2019 GRC Sale $66,140 −13.3%−9.2%−7.1%
August 17, 2018August 17, 2018 GRC Sale $73,380 −0.3%−16.7%−15.8%
May 14, 2018May 11, 2018 GRC Sale $49,860 +7.3%−3.3%−1.3%
February 27, 2018February 27, 2018 GRC Sale $13,915 +25.8%+32.4%+27.4%
November 7, 2017November 3, 2017 GRC Sale $79,390 −8.3%+11.8%+4.7%
August 18, 2017August 18, 2017 GRC Sale $59,900 +10.6%+20.7%+20.2%
March 15, 2017March 14, 2017 GRC Sale $75,915 −21.0%−24.5%−22.5%
November 10, 2016November 9, 2016 GRC Sale $52,890 −4.9%−15.6%−8.4%
May 9, 2016May 6, 2016 GRC Sale $83,430 −7.7%−20.4%−19.0%
October 29, 2015October 28, 2015 GRC Sale $56,140 −7.6%−19.1%−19.7%
May 15, 2015May 13, 2015 GRC Sale $27,070 −11.0%+3.0%+1.8%
March 19, 2014March 18, 2014 GRC Sale $57,618 +7.5%−19.9%−22.9%
April 4, 2013April 2, 2013 GRC Sale $32,021 +8.7%+13.2%+16.3%
May 14, 2012May 11, 2012 GRC Sale $26,136 −12.6%−23.3%−20.7%
April 6, 2011April 5, 2011 GRC Sale $28,000 +11.8%−13.8%−15.5%
February 25, 2011February 23, 2011 GRC Sale $28,763 +12.8%+1.0%+11.5%

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 Lake Christopher H traded and do not suggest the use of non-public information. How every insider compares · the insider trading backtest.