undamentalytics Newsletter

Cross Leslie H: insider trades

Chief executive, Director at Alphatec Holdings, Inc. 12 open-market purchases and no sales not made under a pre-set plan, reported from July 5, 2011 to December 20, 2016.

Would copying Cross Leslie H’s purchases have beaten the S&P 500?

Too few purchases to judge. None of their purchases has 12 months of prices after the report; we judge insiders once they have 20. The figures below can swing a long way on a handful of trades. None of their purchases could be priced, so there is no copy portfolio. None of these trades can be measured yet: either the window after the report has not finished or the share price was under $5 when it was reported.

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

Cross Leslie H: 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 0 — — — — — — Not enough years
Sales, 12 months after the report 0 — — — — — — Not enough years
Sales, 12 months after the trade 0 — — — — — — 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
Alphatec Holdings, Inc. ATEC Chairman and CEO120July 5, 2011December 20, 2016

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
December 20, 2016December 16, 2016 ATEC Purchase $63,750 not yetnot yetnot yet
August 14, 2015August 10, 2015 ATEC Purchase $24,500 not yetnot yetnot yet
May 16, 2014May 14, 2014 ATEC Purchase $13,500 not yetnot yetnot yet
May 15, 2014May 13, 2014 ATEC Purchase $33,250 not yetnot yetnot yet
December 4, 2012November 30, 2012 ATEC Purchase $32,000 not yetnot yetnot yet
December 3, 2012November 29, 2012 ATEC Purchase $16,769 not yetnot yetnot yet
November 29, 2012November 26, 2012 ATEC Purchase $31,400 not yetnot yetnot yet
November 28, 2012November 26, 2012 ATEC Purchase $31,200 not yetnot yetnot yet
November 26, 2012November 21, 2012 ATEC Purchase $15,500 not yetnot yetnot yet
March 13, 2012March 9, 2012 ATEC Purchase $118,362 not yetnot yetnot yet
September 2, 2011August 19, 2011 ATEC Purchase $23,700 not yetnot yetnot yet
July 5, 2011May 11, 2011 ATEC Purchase $65,400 not yetnot yetnot yet

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