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Cahill Edward L: insider trades

Director at 2 companies we cover. No open-market purchases and 6 sales not made under a pre-set plan, reported from July 24, 2019 to June 25, 2021.

What happened after Cahill Edward L’s sales?

After their sales, the shares moved +23.3% against the index over 12 months on average (a negative figure means selling was the right call); 50% 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 6 +3.7% +2.1% 17% 3 — — Not enough years
Sales, 12 months after the report 6 +23.3% +24.1% 50% 3 — — Not enough years
Sales, 12 months after the trade 6 +21.7% +22.1% 33% 3 — — Not enough years

“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
Phreesia, Inc. PHR —05July 24, 2019June 25, 2021
Tandem Diabetes Care Inc TNDM —01August 14, 2019August 14, 2019

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
June 25, 2021June 24, 2021 PHR Sale $300,150 +1.7%−48.9%−48.7%
December 28, 2020December 24, 2020 PHR Sale $1,394,451 −11.9%−52.5%−53.0%
July 22, 2020July 21, 2020 PHR Sale $263,502 +23.0%+101.3%+92.6%
December 18, 2019December 17, 2019 PHR Sale $53,405,005 +2.6%+91.7%+94.8%
August 14, 2019August 13, 2019 TNDM Sale $89,314 +0.6%+48.4%+35.6%
July 24, 2019July 22, 2019 PHR Sale $9,724,122 +6.1%−0.2%+8.5%

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 Cahill Edward L traded and do not suggest the use of non-public information. How every insider compares · the insider trading backtest.