Benincasa Justin D: insider trades

Chief financial officer at ATN International, Inc. No open-market purchases and 11 sales not made under a pre-set plan, reported from December 1, 2011 to December 13, 2022.

What happened after Benincasa Justin D’s sales?

After their sales, the shares moved −20.6% against the index over 12 months on average (a negative figure means selling was the right call); 82% 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

Benincasa Justin D: trades against the S&P 500 afterwards
Measured	Trades counted	Average vs S&P 500	Median	Went the right way	Years	t-statistic	p-value	Evidence
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	11	−15.3%	−13.0%	91%	8	−3.64	0.008	Strong evidence: seller right
Sales, 12 months after the report	11	−20.6%	−23.5%	82%	8	−1.99	0.087	No reliable evidence
Sales, 12 months after the trade	11	−20.4%	−24.4%	82%	8	−1.89	0.10	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

Company	Title on the latest filing	Purchases	Sales	First report	Latest report
ATN International, Inc. ATNI	CFO	0	11	December 1, 2011	December 13, 2022

Trades and what followed

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

Reported	Traded	Company	Trade	Value	3 months after report	12 months after report	12 months after trade
December 13, 2022	December 9, 2022	ATNI	Sale	$181,720	−5.4%	−32.8%	−45.4%
June 12, 2020	June 10, 2020	ATNI	Sale	$251,626	−27.8%	−60.9%	−54.5%
December 13, 2018	December 11, 2018	ATNI	Sale	$385,663	−39.1%	−48.6%	−48.4%
November 6, 2018	November 2, 2018	ATNI	Sale	$453,298	−13.0%	−44.8%	−42.3%
March 15, 2018	March 13, 2018	ATNI	Sale	$360,315	−10.8%	−12.8%	−7.7%
December 1, 2017	November 30, 2017	ATNI	Sale	$249,570	+1.8%	+28.5%	+37.2%
May 12, 2016	May 11, 2016	ATNI	Sale	$409,255	−18.6%	−31.2%	−31.6%
November 17, 2014	November 13, 2014	ATNI	Sale	$308,556	−11.1%	+10.8%	+7.3%
March 14, 2014	March 13, 2014	ATNI	Sale	$525,771	−20.8%	−11.6%	−10.8%
May 3, 2013	May 2, 2013	ATNI	Sale	$253,300	−1.6%	0.0%	−3.9%
December 1, 2011	November 30, 2011	ATNI	Sale	$63,550	−21.5%	−23.5%	−24.4%

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 Benincasa Justin D traded and do not suggest the use of non-public information. How every insider compares · the insider trading backtest.