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Kim James Jungsup: insider trades

Officer at Semtech Corp. No open-market purchases and 71 sales not made under a pre-set plan, reported from September 24, 2010 to November 6, 2019.

What happened after Kim James Jungsup’s sales?

After their sales, the shares moved −10.7% against the index over 12 months on average (a negative figure means selling was the right call); 65% 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 71 −3.6% −3.6% 62% 10 −0.50 0.63 No reliable evidence
Sales, 12 months after the report 71 −10.7% −11.1% 65% 10 −0.35 0.73 No reliable evidence
Sales, 12 months after the trade 71 −11.5% −9.9% 68% 10 −0.52 0.62 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
Semtech Corp SMTC EVP071September 24, 2010November 6, 2019

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 6, 2019November 5, 2019 SMTC Sale $275,000 −15.0%+2.1%−5.6%
August 1, 2019July 31, 2019 SMTC Sale $270,000 +1.1%+4.6%−6.9%
July 26, 2019July 24, 2019 SMTC Sale $525,000 −7.6%−10.5%−12.2%
July 24, 2019July 23, 2019 SMTC Sale $255,000 −7.6%−11.7%−8.4%
May 31, 2019May 29, 2019 SMTC Sale $1,314,294 −2.1%+17.4%+5.4%
April 12, 2019April 12, 2019 SMTC Sale $531,300 −10.9%−17.7%−15.5%
February 15, 2019February 15, 2019 SMTC Sale $132,500 −19.6%−32.3%−32.2%
January 11, 2019January 11, 2019 SMTC Sale $131,250 −8.9%−23.8%−26.8%
November 29, 2018November 29, 2018 SMTC Sale $130,000 −0.5%−28.8%−25.4%
November 20, 2018November 20, 2018 SMTC Sale $109,913 +16.8%−12.0%−9.9%
September 20, 2018September 19, 2018 SMTC Sale $298,260 −9.6%−22.8%−26.9%
September 19, 2018September 18, 2018 SMTC Sale $517,020 −11.8%−23.5%−26.4%
September 11, 2018September 10, 2018 SMTC Sale $143,250 −10.3%−23.1%−24.3%
June 12, 2018June 12, 2018 SMTC Sale $675,859 +13.4%−19.3%−18.7%
February 27, 2018February 27, 2018 SMTC Sale $452,270 +33.9%+60.9%+56.3%
January 5, 2018January 5, 2018 SMTC Sale $54,075 +22.4%+44.1%+38.8%
January 2, 2018December 29, 2017 SMTC Sale $51,480 +17.5%+34.7%+39.4%
November 2, 2017November 1, 2017 SMTC Sale $61,005 −13.9%+15.7%+7.9%
October 3, 2017October 2, 2017 SMTC Sale $56,565 −13.4%+26.5%+25.0%
September 1, 2017September 1, 2017 SMTC Sale $56,355 −14.8%+41.9%+42.1%
August 2, 2017August 1, 2017 SMTC Sale $59,835 +2.1%+9.1%+3.2%
December 7, 2016December 5, 2016 SMTC Sale $517,275 −0.9%−15.9%−13.1%
March 1, 2016March 1, 2016 SMTC Sale $78,440 +19.9%+51.8%+46.7%
August 3, 2015July 31, 2015 SMTC Sale $30,712 +4.3%+37.0%+39.6%
June 29, 2015June 26, 2015 SMTC Sale $36,777 −18.7%+14.6%+5.2%
May 29, 2015May 29, 2015 SMTC Sale $37,701 −15.9%+7.6%+6.0%
April 24, 2015April 24, 2015 SMTC Sale $42,222 −22.6%−3.6%−5.8%
March 30, 2015March 27, 2015 SMTC Sale $45,301 −25.7%−19.2%−19.3%
March 2, 2015February 27, 2015 SMTC Sale $50,454 −29.1%−31.6%−27.5%
February 2, 2015January 30, 2015 SMTC Sale $24,027 −15.9%−25.6%−18.0%
December 29, 2014December 26, 2014 SMTC Sale $27,930 −4.5%−31.6%−31.8%
December 1, 2014November 28, 2014 SMTC Sale $25,590 +1.3%−24.0%−23.8%
November 3, 2014October 31, 2014 SMTC Sale $25,270 +2.3%−35.0%−35.8%
September 29, 2014September 26, 2014 SMTC Sale $27,470 −3.6%−43.6%−44.1%
April 11, 2014April 11, 2014 SMTC Sale $123,900 −6.6%−11.1%−12.3%
March 7, 2014March 7, 2014 SMTC Sale $129,300 +1.9%−6.1%−6.9%
February 7, 2014February 7, 2014 SMTC Sale $111,400 −1.2%+1.9%+4.0%
January 10, 2014January 10, 2014 SMTC Sale $120,200 +2.2%−0.4%+0.4%
December 16, 2013December 13, 2013 SMTC Sale $41,595 −13.0%−21.3%−17.8%
November 8, 2013November 8, 2013 SMTC Sale $46,110 −28.1%−34.1%−35.8%
October 15, 2013October 11, 2013 SMTC Sale $47,100 −29.6%−36.2%−41.1%
September 13, 2013September 13, 2013 SMTC Sale $47,175 −18.1%−33.4%−33.4%
August 9, 2013August 9, 2013 SMTC Sale $44,295 −0.7%−39.4%−38.1%
July 12, 2013July 12, 2013 SMTC Sale $50,925 −7.7%−45.9%−45.9%
July 1, 2013June 28, 2013 SMTC Sale $11,391 −15.0%−45.7%−49.8%
June 14, 2013June 14, 2013 SMTC Sale $53,280 −16.1%−44.5%−44.1%
June 3, 2013June 3, 2013 SMTC Sale $100,732 −19.2%−47.9%−48.7%
May 31, 2013May 31, 2013 SMTC Sale $11,911 −19.4%−48.7%−50.4%
May 13, 2013May 10, 2013 SMTC Sale $49,635 −15.8%−51.2%−47.1%
May 7, 2013May 6, 2013 SMTC Sale $89,128 −11.7%−47.3%−47.3%
April 26, 2013April 26, 2013 SMTC Sale $10,137 −10.4%−45.0%−42.8%
April 15, 2013April 12, 2013 SMTC Sale $49,455 −3.1%−44.6%−42.9%
April 1, 2013April 1, 2013 SMTC Sale $106,887 0.0%−46.7%−48.9%
March 11, 2013March 8, 2013 SMTC Sale $602,320 +2.7%−44.9%−46.2%
November 7, 2012November 6, 2012 SMTC Sale $43,133 +14.6%−4.5%−7.6%
November 6, 2012November 5, 2012 SMTC Sale $42,125 +14.8%−5.3%−7.1%
October 22, 2012October 19, 2012 SMTC Sale $77,534 +15.5%−4.4%−3.8%
October 1, 2012October 1, 2012 SMTC Sale $41,725 +17.0%+3.2%+1.2%
September 21, 2012September 21, 2012 SMTC Sale $144,485 +11.6%−4.3%−1.3%
September 4, 2012September 4, 2012 SMTC Sale $40,691 +13.1%+2.9%+1.6%
August 20, 2012August 17, 2012 SMTC Sale $80,804 −2.8%+0.9%−2.2%
March 22, 2012March 22, 2012 SMTC Sale $202,090 −13.9%+7.4%+7.6%
January 11, 2012January 11, 2012 SMTC Sale $466,200 −4.2%−3.9%−4.4%
January 5, 2012January 5, 2012 SMTC Sale $509,400 −2.5%−1.3%−1.4%
July 6, 2011July 6, 2011 SMTC Sale $499,500 −5.4%−15.6%−14.5%
March 30, 2011March 30, 2011 SMTC Sale $744,900 +9.2%+5.3%+5.0%
March 29, 2011March 29, 2011 SMTC Sale $292,320 +6.9%+5.0%+7.6%
March 15, 2011March 14, 2011 SMTC Sale $658,397 +5.6%+7.0%+4.3%
September 30, 2010September 30, 2010 SMTC Sale $252,750 +1.7%+3.7%+4.3%
September 24, 2010September 23, 2010 SMTC Sale $253,960 +9.4%+13.4%+14.6%
September 24, 2010September 23, 2010 SMTC Sale $32,581 +9.4%+13.4%+14.6%

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