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Reichow Gregory: insider trades

Officer, Director at 2 companies we cover. No open-market purchases and 6 sales not made under a pre-set plan, reported from August 16, 2013 to May 8, 2025.

What happened after Reichow Gregory’s sales?

After their sales, the shares moved +6.3% against the index over 12 months on average (a negative figure means selling was the right call); 67% 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 +4.2% −7.9% 50% 4 0.28 0.80 No reliable evidence
Sales, 12 months after the report 6 +6.3% −17.8% 67% 4 −0.09 0.94 No reliable evidence
Sales, 12 months after the trade 6 +5.3% −17.2% 67% 4 −0.16 0.88 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
Tesla, Inc. TSLA VP Manufacturing04August 16, 2013November 10, 2015
Enovix Corp ENVX —02June 21, 2024May 8, 2025

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
May 8, 2025May 2, 2025 ENVX Sale $53,408 +52.6%−26.4%−20.8%
June 21, 2024June 20, 2024 ENVX Sale $91,050 −35.2%−26.7%−40.6%
November 10, 2015November 6, 2015 TSLA Sale $2,943,404 −21.4%−22.1%−20.5%
May 13, 2015May 11, 2015 TSLA Sale $2,395,300 +0.5%−13.5%−13.9%
November 13, 2013November 8, 2013 TSLA Sale $1,999,200 +44.7%+71.9%+58.1%
August 16, 2013August 14, 2013 TSLA Sale $294,240 −16.3%+54.4%+69.3%

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