Pelham Judith C: insider trades

Director at 2 companies we cover. 1 open-market purchase and 6 sales not made under a pre-set plan, reported from February 14, 2012 to August 4, 2015.

Would copying Pelham Judith C’s purchases have beaten the S&P 500?

Too few purchases to judge. Only 1 purchase 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. Buying each purchase the day after it was reported, an equal amount each, and holding it 12 months or until they reported a sale would have turned $10,000 on March 4, 2013 into $12,365 by November 2, 2026, +1.6% a year. The copy held shares only 7% of the time, so the fair comparison is the S&P 500 on those same days with Treasury bills otherwise: $16,180, +3.6% a year (the S&P 500 held throughout made $62,447, +14.4% a year). Beta against the index was 0.03. Twelve months after each report, the average purchase was −29.5% against the S&P 500 (median −29.5%), and 0% beat it. Measured from the trade date, the insider’s own timing, the average was −29.2%. After their sales, the shares moved +10.8% against the index over 12 months on average (a negative figure means selling was the right call); 33% 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.

Copying Pelham Judith CS&P 500, same days investedS&P 500, held throughout $10,000 copying Pelham Judith C’s open-market purchases from March 4, 2013, before costs and taxes, marked weekly. Each purchase gets the same starting stake, bought at the close of the first trading day after the report and sold 12 months later or the day after a reported sale of that stock; uninvested money earns the Treasury bill rate. “Same days invested” holds the S&P 500 only on the days the copy held shares, Treasury bills otherwise.

Return a year, copying: +1.6%
S&P 500, same days invested: +3.6% (held throughout +14.4%)
Time in shares: 7%
Sharpe ratio (S&P 500): −0.03 (0.77)
Biggest drop (S&P 500): −32% (−34%)
Market sensitivity (beta): 0.03
Purchases copied: 1

Trade by trade

Pelham Judith C: 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	1	−2.4%	−2.4%	0%	1	—	—	Not enough years
Purchases, 6 months after the report	1	−12.0%	−12.0%	0%	1	—	—	Not enough years
Purchases, 12 months after the report	1	−29.5%	−29.5%	0%	1	—	—	Not enough years
Purchases, 12 months after the trade	1	−29.2%	−29.2%	0%	1	—	—	Not enough years
Sales, 3 months after the report	6	+5.8%	+5.4%	33%	3	—	—	Not enough years
Sales, 12 months after the report	6	+10.8%	+11.8%	33%	3	—	—	Not enough years
Sales, 12 months after the trade	6	+8.8%	+12.3%	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

Company	Title on the latest filing	Purchases	Sales	First report	Latest report
Amgen AMGN	—	0	6	February 14, 2012	August 4, 2015
Welltower WELL	—	1	0	March 1, 2013	March 1, 2013

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
August 4, 2015	July 31, 2015	AMGN	Sale	$908,314	−8.5%	−5.1%	−4.4%
May 16, 2013	May 14, 2013	AMGN	Sale	$2,706,250	−0.1%	−7.2%	−10.9%
March 1, 2013	February 28, 2013	WELL	Purchase	$50,296	−2.4%	−29.5%	−29.2%
February 11, 2013	February 8, 2013	AMGN	Sale	$434,700	+19.1%	+25.0%	+20.2%
August 27, 2012	August 24, 2012	AMGN	Sale	$421,850	+4.9%	+13.8%	+13.1%
May 21, 2012	May 18, 2012	AMGN	Sale	$1,104,960	+13.3%	+28.7%	+23.2%
February 14, 2012	February 13, 2012	AMGN	Sale	$341,500	+5.9%	+9.9%	+11.6%

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 Pelham Judith C traded and do not suggest the use of non-public information. How every insider compares · the insider trading backtest.