undamentalytics Newsletter

Howley W Nicholas: insider trades

Chief executive, Officer, Director at TransDigm Group. 2 open-market purchases and 114 sales not made under a pre-set plan, reported from March 10, 2010 to June 22, 2026.

Would copying Howley W Nicholas’s purchases have beaten the S&P 500?

Too few purchases to judge. Only 2 purchases have 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 August 26, 2014 into $13,205 by November 2, 2026, +2.3% a year. The copy held shares only 2% of the time, so the fair comparison is the S&P 500 on those same days with Treasury bills otherwise: $13,304, +2.4% a year (the S&P 500 held throughout made $46,298, +13.4% a year). Beta against the index was 0.01. Twelve months after each report, the average purchase was +22.0% against the S&P 500 (median +22.0%), and 100% beat it. Measured from the trade date, the insider’s own timing, the average was +22.4%. After their sales, the shares moved +13.8% against the index over 12 months on average (a negative figure means selling was the right call); 28% 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.

$0$20.0k$40.0k 2014201620182020202220242026 $46.3k$13.3k$13.2k
Copying Howley W NicholasS&P 500, same days investedS&P 500, held throughout $10,000 copying Howley W Nicholas’s open-market purchases from August 26, 2014, 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
+2.3%
S&P 500, same days invested
+2.4% (held throughout +13.4%)
Time in shares
2%
Sharpe ratio (S&P 500)
0.09 (0.69)
Biggest drop (S&P 500)
−10% (−34%)
Market sensitivity (beta)
0.01
Purchases copied
2

Trade by trade

Howley W Nicholas: trades against the S&P 500 afterwards
MeasuredTrades countedAverage vs S&P 500MedianWent the right wayYearst-statisticp-valueEvidence
Purchases, 3 months after the report 2 +0.6% +0.6% 50% 1 — — Not enough years
Purchases, 6 months after the report 2 +10.4% +10.4% 100% 1 — — Not enough years
Purchases, 12 months after the report 2 +22.0% +22.0% 100% 1 — — Not enough years
Purchases, 12 months after the trade 2 +22.4% +22.4% 100% 1 — — Not enough years
Sales, 3 months after the report 114 +1.3% +2.6% 35% 16 0.59 0.56 No reliable evidence
Sales, 12 months after the report 113 +13.8% +15.3% 28% 15 3.42 0.004 Strong evidence: seller wrong
Sales, 12 months after the trade 113 +13.9% +17.7% 30% 15 3.43 0.004 Strong evidence: seller wrong

“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
TransDigm Group TDG Exec. Chairman of the Board2114March 10, 2010June 22, 2026

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
June 22, 2026June 18, 2026 TDG Sale $13,369,715 −20.0%not yetnot yet
May 13, 2024May 9, 2024 TDG Sale $259,515 −6.4%+2.8%−0.9%
August 1, 2023August 1, 2023 TDG Sale $36,218,700 +0.1%+21.6%+25.0%
August 1, 2023July 31, 2023 TDG Sale $2,738,700 +0.1%+21.6%+27.1%
July 31, 2023July 28, 2023 TDG Sale $5,003,100 −0.6%+25.0%+27.8%
July 18, 2023July 17, 2023 TDG Sale $2,892,647 +1.3%+22.5%+20.0%
June 16, 2023June 15, 2023 TDG Sale $2,641,490 +4.3%+41.3%+40.4%
May 16, 2023May 15, 2023 TDG Sale $2,602,478 −2.6%+34.0%+35.3%
May 10, 2023May 8, 2023 TDG Sale $7,476,647 +1.1%+38.4%+49.4%
April 19, 2023April 17, 2023 TDG Sale $4,895,634 +6.2%+40.1%+45.8%
March 17, 2023March 15, 2023 TDG Sale $4,558,992 +5.9%+45.9%+41.0%
February 17, 2023February 15, 2023 TDG Sale $4,906,050 +4.3%+38.7%+32.2%
February 13, 2023February 9, 2023 TDG Sale $7,539,093 +7.0%+35.3%+29.0%
January 18, 2023January 17, 2023 TDG Sale $4,454,028 +9.2%+42.1%+38.9%
December 19, 2022December 15, 2022 TDG Sale $4,032,257 +11.2%+42.8%+44.1%
November 17, 2022November 15, 2022 TDG Sale $4,032,257 +18.3%+46.0%+44.9%
October 19, 2022October 17, 2022 TDG Sale $6,072,844 +18.9%+38.8%+41.1%
September 19, 2022September 15, 2022 TDG Sale $6,819,196 +3.6%+30.1%+32.2%
August 16, 2022August 15, 2022 TDG Sale $7,766,113 +1.2%+27.8%+25.8%
July 18, 2022July 15, 2022 TDG Sale $6,218,046 +0.3%+42.4%+51.5%
June 16, 2022June 15, 2022 TDG Sale $6,205,769 +11.4%+48.2%+34.9%
May 17, 2022May 16, 2022 TDG Sale $6,401,029 +16.0%+49.0%+48.8%
April 20, 2022April 18, 2022 TDG Sale $7,265,159 +1.1%+28.3%+27.4%
March 16, 2022March 15, 2022 TDG Sale $7,275,371 −5.9%+17.5%+18.9%
February 16, 2022February 15, 2022 TDG Sale $7,433,808 −7.1%+22.5%+24.3%
January 19, 2022January 18, 2022 TDG Sale $7,253,827 +2.4%+20.9%+21.1%
December 17, 2021December 15, 2021 TDG Sale $6,574,753 +16.5%+23.0%+24.0%
November 17, 2021November 15, 2021 TDG Sale $7,465,131 +5.5%+11.0%+10.7%
October 18, 2021October 15, 2021 TDG Sale $7,374,572 −3.2%+3.1%+1.0%
September 17, 2021September 15, 2021 TDG Sale $6,994,736 −11.4%+8.0%+10.2%
August 16, 2021August 16, 2021 TDG Sale $6,917,781 +2.7%+13.4%+14.7%
July 16, 2021July 15, 2021 TDG Sale $7,352,425 0.0%+0.8%−5.3%
June 16, 2021June 15, 2021 TDG Sale $7,709,906 −15.7%−11.1%−11.2%
May 18, 2021May 17, 2021 TDG Sale $6,808,422 −4.6%−5.3%−6.0%
April 16, 2021April 15, 2021 TDG Sale $7,154,493 −2.4%−2.4%−6.0%
March 16, 2021March 15, 2021 TDG Sale $7,127,573 +2.4%−3.7%−6.4%
February 17, 2021February 16, 2021 TDG Sale $6,607,183 −3.6%0.0%−3.2%
January 19, 2021January 15, 2021 TDG Sale $6,767,885 −5.5%−10.1%−15.0%
November 30, 2020November 27, 2020 TDG Sale $11,942,694 −6.9%−31.6%−30.8%
November 24, 2020November 24, 2020 TDG Sale $8,928,936 −9.0%−35.4%−30.6%
November 19, 2020November 18, 2020 TDG Sale $240,004 −4.6%−23.8%−21.3%
November 13, 2020November 13, 2020 TDG Sale $4,183,630 −7.8%−18.5%−17.0%
November 10, 2020November 9, 2020 TDG Sale $23,029,112 −7.8%−14.8%−13.1%
November 10, 2020November 9, 2020 TDG Sale $1,967,200 −7.8%−14.8%−13.1%
October 15, 2020October 13, 2020 TDG Sale $10,205,181 +7.1%−0.5%+7.5%
September 15, 2020September 14, 2020 TDG Sale $10,964,867 +8.8%−17.4%−12.2%
August 14, 2020August 13, 2020 TDG Sale $10,659,606 +9.3%−10.2%−12.0%
July 14, 2020July 13, 2020 TDG Sale $9,104,726 −0.2%+9.5%+16.1%
June 11, 2020June 10, 2020 TDG Sale $9,302,662 +2.7%+7.5%+8.2%
March 10, 2020March 9, 2020 TDG Sale $7,763,114 −17.2%−16.9%−13.4%
February 19, 2020February 14, 2020 TDG Sale $49,892,702 −31.0%−23.2%−29.8%
February 19, 2020February 14, 2020 TDG Sale $1,252,472 −31.0%−23.2%−29.8%
February 11, 2020February 10, 2020 TDG Sale $10,893,757 −34.7%−29.5%−26.0%
January 10, 2020January 9, 2020 TDG Sale $10,090,944 −34.4%−15.4%−15.9%
December 11, 2019December 9, 2019 TDG Sale $9,694,831 −12.9%−5.6%−7.3%
November 12, 2019November 11, 2019 TDG Sale $9,269,640 +14.8%−9.3%−5.2%
October 10, 2019October 9, 2019 TDG Sale $8,712,978 +10.6%−23.3%−18.3%
September 12, 2019September 9, 2019 TDG Sale $8,906,477 +3.4%−11.5%−10.6%
August 12, 2019August 9, 2019 TDG Sale $9,355,605 −1.0%−15.8%−18.2%
July 9, 2019July 9, 2019 TDG Sale $8,207,766 +12.9%−13.4%−9.7%
June 11, 2019June 10, 2019 TDG Sale $8,115,920 +8.5%−6.0%−0.2%
May 9, 2019May 9, 2019 TDG Sale $7,975,879 +13.2%−21.1%−20.6%
April 11, 2019April 9, 2019 TDG Sale $7,793,571 +3.4%−22.9%−16.4%
March 13, 2019March 11, 2019 TDG Sale $7,353,395 +3.4%+7.3%+22.7%
February 8, 2019February 7, 2019 TDG Sale $7,150,104 +4.0%+43.6%+43.5%
March 15, 2018March 14, 2018 TDG Sale $2,802,495 +12.1%+45.0%+44.5%
November 20, 2017November 17, 2017 TDG Sale $9,484,159 +5.3%+23.0%+22.2%
November 17, 2017November 16, 2017 TDG Sale $17,130,073 +4.7%+19.4%+21.8%
December 9, 2016December 8, 2016 TDG Sale $9,296,233 −12.4%−1.5%−0.8%
September 19, 2016September 14, 2016 TDG Sale $2,111,294 −8.2%−9.5%−12.2%
June 9, 2016June 8, 2016 TDG Sale $26,501,008 +6.5%−8.2%−4.4%
December 15, 2015December 14, 2015 TDG Sale $15,322,045 +2.3%+14.1%+10.7%
December 15, 2015December 11, 2015 TDG Sale $15,720,528 +2.3%+14.1%+6.4%
December 15, 2015December 11, 2015 TDG Sale $4,486,367 +2.3%+14.1%+6.4%
August 12, 2015August 11, 2015 TDG Sale $2,368,112 −8.5%+11.5%+14.5%
August 7, 2015August 6, 2015 TDG Sale $17,849,861 −4.8%+15.3%+10.8%
March 3, 2015March 2, 2015 TDG Sale $14,211,454 +4.3%+5.0%+3.8%
March 2, 2015February 27, 2015 TDG Sale $29,386,024 +3.4%+4.1%+4.7%
November 18, 2014November 17, 2014 TDG Sale $849,414 +12.6%+19.2%+17.7%
August 28, 2014August 26, 2014 TDG Purchase $2,995,994 +1.5%+21.8%+22.1%
August 25, 2014August 22, 2014 TDG Purchase $2,002,686 −0.3%+22.1%+22.8%
September 16, 2013September 12, 2013 TDG Sale $2,172,900 +2.5%+30.4%+29.8%
May 29, 2013May 28, 2013 TDG Sale $1,175,271 +9.6%+31.1%+29.5%
May 1, 2013April 29, 2013 TDG Sale $1,142,964 +8.4%+19.5%+19.5%
April 1, 2013March 28, 2013 TDG Sale $1,195,409 −0.4%+21.3%+18.5%
March 1, 2013February 28, 2013 TDG Sale $1,131,039 −2.9%+24.1%+19.6%
February 7, 2013February 6, 2013 TDG Sale $25,059,680 −4.1%+19.8%+23.0%
January 29, 2013January 28, 2013 TDG Sale $1,080,906 +0.7%+19.3%+22.4%
January 2, 2013December 28, 2012 TDG Sale $1,059,426 −1.0%+5.5%+5.1%
November 29, 2012November 28, 2012 TDG Sale $1,054,229 −4.3%+2.2%+6.3%
November 1, 2012October 31, 2012 TDG Sale $1,062,827 −5.6%−1.8%−0.6%
October 2, 2012September 28, 2012 TDG Sale $1,115,386 +4.8%+4.1%+7.1%
August 30, 2012August 28, 2012 TDG Sale $1,092,657 +4.8%+6.2%+7.7%
July 31, 2012July 30, 2012 TDG Sale $4,275,533 +20.0%+29.5%+30.5%
July 2, 2012June 28, 2012 TDG Sale $4,510,940 +1.1%+9.9%+6.1%
May 31, 2012May 29, 2012 TDG Sale $4,413,303 +3.3%+4.1%+1.7%
May 14, 2012May 11, 2012 TDG Sale $3,793,179 −2.7%+4.8%+9.6%
May 1, 2012April 30, 2012 TDG Sale $3,633,221 −4.5%+11.0%+12.7%
March 29, 2012March 28, 2012 TDG Sale $4,104,062 +18.9%+28.7%+27.9%
February 29, 2012February 28, 2012 TDG Sale $4,145,626 +9.2%+19.1%+20.7%
February 10, 2012February 9, 2012 TDG Sale $1,745,745 +6.2%+18.0%+21.9%
January 31, 2012January 30, 2012 TDG Sale $3,599,834 +13.3%+25.8%+28.8%
December 29, 2011December 28, 2011 TDG Sale $5,344,902 +8.8%+41.2%+40.1%
December 13, 2011December 12, 2011 TDG Sale $3,634,891 +5.4%+27.8%+26.7%
November 29, 2011November 28, 2011 TDG Sale $3,312,998 +8.7%+35.7%+37.7%
October 28, 2011October 28, 2011 TDG Sale $3,303,401 +7.5%+43.1%+44.1%
September 29, 2011September 28, 2011 TDG Sale $2,995,112 +5.5%+43.2%+41.8%
August 29, 2011August 29, 2011 TDG Sale $3,178,480 +3.8%+35.6%+32.0%
August 17, 2011August 16, 2011 TDG Sale $4,395,653 +4.5%+34.1%+22.7%
May 24, 2011May 19, 2011 TDG Sale $7,109,500 +19.0%+54.0%+44.0%
February 15, 2011February 11, 2011 TDG Sale $4,959,863 +1.7%+38.4%+41.1%
February 10, 2011February 9, 2011 TDG Sale $8,932,260 +0.3%+41.1%+36.8%
December 8, 2010December 6, 2010 TDG Sale $7,035,660 +8.7%+32.0%+33.7%
March 15, 2010March 12, 2010 TDG Sale $2,096,000 +5.4%+40.0%+38.5%
March 12, 2010March 11, 2010 TDG Sale $3,168,000 +4.5%+41.6%+37.2%
March 10, 2010March 10, 2010 TDG Sale $525,800 +2.7%+37.2%+38.4%

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