undamentalytics Newsletter
Sign in

Sengelmann William W.: insider trades

Officer at Camden Property Trust. No open-market purchases and 24 sales not made under a pre-set plan, reported from May 14, 2010 to January 8, 2024.

What happened after Sengelmann William W.’s sales?

After their sales, the shares moved −0.3% against the index over 12 months on average (a negative figure means selling was the right call); 46% 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 24 −2.1% −1.6% 75% 13 −1.98 0.071 No reliable evidence
Sales, 12 months after the report 24 −0.3% +1.7% 46% 13 −0.20 0.85 No reliable evidence
Sales, 12 months after the trade 24 −0.2% +1.3% 50% 13 −0.13 0.90 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
Camden Property Trust CPT EVP - Real Estate Investments024May 14, 2010January 8, 2024

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
January 8, 2024January 4, 2024 CPT Sale $637,678 −5.0%−8.6%−8.6%
January 6, 2023January 4, 2023 CPT Sale $1,158,551 −12.6%−34.0%−33.1%
January 7, 2021January 5, 2021 CPT Sale $449,992 +8.5%+52.7%+58.7%
November 12, 2020November 9, 2020 CPT Sale $1,370,477 −4.4%+39.8%+36.3%
January 7, 2020January 3, 2020 CPT Sale $259,852 −2.8%−23.7%−22.2%
August 17, 2018August 16, 2018 CPT Sale $3,011,653 +2.2%+13.1%+12.8%
January 9, 2018January 5, 2018 CPT Sale $395,980 +1.5%+9.9%+6.5%
August 9, 2017August 8, 2017 CPT Sale $458,418 −1.0%−11.9%−10.9%
March 1, 2017February 27, 2017 CPT Sale $1,366,645 −1.0%−16.7%−20.9%
January 6, 2017January 4, 2017 CPT Sale $131,239 −6.8%−14.9%−14.6%
September 23, 2016September 22, 2016 CPT Sale $502,922 −9.0%−8.5%−4.9%
June 27, 2016June 24, 2016 CPT Sale $202,631 −0.4%−12.8%−9.5%
January 7, 2016January 5, 2016 CPT Sale $150,763 +4.5%+2.2%+5.4%
March 24, 2015March 20, 2015 CPT Sale $436,713 −6.2%+7.1%+5.9%
January 7, 2015January 5, 2015 CPT Sale $133,775 −1.9%+5.6%+5.1%
August 12, 2014August 11, 2014 CPT Sale $298,101 −2.0%+2.3%+3.2%
April 8, 2013April 5, 2013 CPT Sale $816,758 −7.2%−21.9%−24.9%
August 28, 2012August 27, 2012 CPT Sale $229,250 −6.3%−29.0%−25.8%
August 17, 2011August 16, 2011 CPT Sale $541,204 −14.0%−14.3%−15.5%
June 23, 2011June 21, 2011 CPT Sale $517,756 −1.3%+1.2%−0.6%
April 5, 2011April 1, 2011 CPT Sale $257,268 +16.8%+10.7%+10.6%
January 6, 2011January 3, 2011 CPT Sale $98,021 +0.6%+14.3%+14.6%
November 10, 2010November 9, 2010 CPT Sale $213,026 −1.0%+14.8%+19.3%
May 14, 2010May 12, 2010 CPT Sale $124,806 −1.4%+14.1%+8.3%

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