undamentalytics Newsletter

Dale Ajmere: insider trades

Officer at Block, Inc. No open-market purchases and 18 sales not made under a pre-set plan, reported from July 7, 2022 to November 25, 2025.

What happened after Dale Ajmere’s sales?

After their sales, the shares moved −14.5% 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

Dale Ajmere: 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 18 +0.5% −3.1% 56% 4 0.52 0.64 No reliable evidence
Sales, 12 months after the report 17 −14.5% −12.3% 82% 4 −3.93 0.029 Some evidence: seller right
Sales, 12 months after the trade 17 −16.0% −17.3% 82% 4 −4.05 0.027 Some evidence: seller right

“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
Block, Inc. XYZ Chief Accounting Officer018July 7, 2022November 25, 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
November 25, 2025November 21, 2025 XYZ Sale $167,254 −2.2%not yetnot yet
July 7, 2025July 2, 2025 XYZ Sale $25,349 +6.1%−8.4%−8.4%
May 23, 2025May 21, 2025 XYZ Sale $108,720 +17.3%−9.5%−6.6%
February 25, 2025February 21, 2025 XYZ Sale $103,159 −4.5%−19.2%−41.3%
November 25, 2024November 21, 2024 XYZ Sale $162,837 −27.0%−42.3%−46.4%
August 23, 2024August 21, 2024 XYZ Sale $90,968 +34.2%+6.1%+4.4%
July 5, 2024July 2, 2024 XYZ Sale $30,318 +0.8%−7.1%−7.0%
May 23, 2024May 21, 2024 XYZ Sale $91,070 −7.4%−19.2%−28.2%
February 23, 2024February 21, 2024 XYZ Sale $42,181 −16.1%−31.0%−19.4%
November 22, 2023November 21, 2023 XYZ Sale $36,861 +18.5%+19.1%+25.3%
October 4, 2023October 2, 2023 XYZ Sale $37,404 +46.4%+18.5%+15.7%
August 23, 2023August 21, 2023 XYZ Sale $35,532 +1.6%−12.3%−15.3%
July 6, 2023July 3, 2023 XYZ Sale $56,663 −33.8%−32.6%−28.7%
May 24, 2023May 22, 2023 XYZ Sale $37,495 −12.3%−18.2%−17.3%
April 5, 2023April 3, 2023 XYZ Sale $59,429 −6.4%−11.3%−16.5%
January 5, 2023January 3, 2023 XYZ Sale $66,337 −9.8%−23.2%−19.1%
October 5, 2022October 3, 2022 XYZ Sale $47,784 +6.9%−47.1%−42.5%
July 7, 2022July 5, 2022 XYZ Sale $55,302 −4.0%−9.6%−20.2%

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