undamentalytics Newsletter

Flanagan Cary M: insider trades

Officer at Knight-swift Transportation Holdings Inc. No open-market purchases and 16 sales not made under a pre-set plan, reported from August 8, 2013 to July 31, 2026.

What happened after Flanagan Cary M’s sales?

After their sales, the shares moved −3.2% against the index over 12 months on average (a negative figure means selling was the right call); 64% 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

Flanagan Cary M: 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 16 −2.6% −4.5% 75% 12 −0.61 0.55 No reliable evidence
Sales, 12 months after the report 14 −3.2% −7.4% 64% 10 −0.67 0.52 No reliable evidence
Sales, 12 months after the trade 14 −3.1% −4.7% 50% 10 −0.65 0.53 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
Knight-swift Transportation Holdings Inc. KNX Exec VP and CAO016August 8, 2013July 31, 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
July 31, 2026July 31, 2026 KNX Sale $254,952 −10.9%not yetnot yet
November 7, 2025November 7, 2025 KNX Sale $193,672 +30.2%not yetnot yet
February 29, 2024February 29, 2024 KNX Sale $112,500 −15.5%−25.9%−29.0%
August 2, 2023August 2, 2023 KNX Sale $118,000 −14.2%−30.9%−33.6%
August 25, 2021August 24, 2021 KNX Sale $100,960 +8.9%+13.0%+13.9%
August 10, 2020August 7, 2020 KNX Sale $107,775 −19.8%−22.4%−18.9%
October 24, 2019October 24, 2019 KNX Sale $119,818 −15.2%−12.0%−12.2%
May 31, 2017May 26, 2017 KNX Sale $58,724 +16.2%+10.4%+7.0%
November 8, 2016November 7, 2016 KNX Sale $236,400 −4.2%−2.9%+2.7%
August 3, 2015July 31, 2015 KNX Sale $359,700 −4.8%−0.9%+4.2%
May 22, 2015May 20, 2015 KNX Sale $128,775 −4.8%−13.6%−14.6%
February 25, 2015February 23, 2015 KNX Sale $140,150 −10.1%−17.6%−15.6%
October 31, 2014October 29, 2014 KNX Sale $247,000 −2.5%−14.7%−19.2%
May 30, 2014May 29, 2014 KNX Sale $49,820 −0.3%+5.5%+4.7%
February 25, 2014February 21, 2014 KNX Sale $121,800 +8.0%+37.4%+36.8%
August 8, 2013August 7, 2013 KNX Sale $349,000 −2.0%+30.1%+30.1%

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 Flanagan Cary M traded and do not suggest the use of non-public information. How every insider compares · the insider trading backtest.