undamentalytics Newsletter

Quanta Services insider trading

Every open-market purchase and sale by Quanta Services's officers, directors and largest shareholders since November 4, 2021, and what the share price did next.

No insider has bought shares on the open market in five years.

Insider purchase Insider sale Marker size reflects trade value. Weekly closes adjusted for splits; may be delayed.
Quanta Services insider open-market trades
DateInsiderTrade SharesPriceValue 1M after 3M after 6M after

From insiders' Form 4 filings with the SEC: open-market purchases and sales only (awards, option exercises and shares withheld for tax are excluded), combined to one line per insider per day. "Plan" marks trades the filing says were made under a pre-set Rule 10b5-1 trading plan, which are scheduled in advance. Price changes run from the close on the trade date; hover a figure for the change relative to the S&P 500. Past moves don't predict future ones.

Does following Quanta Services’s insiders pay?

From March 4, 2010 to May 7, 2026, 31 insiders reported 10 open-market purchases and 93 sales not made under a pre-set plan in Quanta Services. Twelve months after each purchase was reported, the shares were +21.9% against the S&P 500 on average (median +12.3%), over 10 purchases with a full year of prices; 90% beat the index. After sales, the shares moved +3.3% against the index over 12 months (a negative figure means selling was the right call). That rests on fewer than 20 purchases, too few to read much into. Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on May 16, 2011 into $35,989 by November 2, 2026, +8.7% a year. It held shares 30% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $24,252 (+5.9% a year), and held throughout $74,502 (+13.9%).

$0$25.0k$50.0k$75.0k 20112013201520172019202120232025 $74.5k$36.0k$24.3k
Copying Quanta Services's insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by Quanta Services's insiders from May 16, 2011, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 30% of the time.
Quanta Services: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Austin Earl C. JR. President and CEO 1 +11.8% (1) 100% 8 +12.8% (7) May 7, 2026
Conaway John Michal Other 0 — — 9 +0.4% (9) September 10, 2021
Fried Bernard Director 0 — — 9 +8.9% (8) November 5, 2025
Foster Vincent D Director 3 +58.3% (3) 100% 4 +5.5% (4) February 29, 2024
Colson John R Exec Chairman of the Board 1 +3.5% (1) 100% 5 +1.1% (5) December 3, 2012
Jensen Derrick A EVP - Business Administration 1 +11.8% (1) 100% 5 −2.0% (5) February 29, 2024
Ball James R /tx/ Director 0 — — 5 −14.5% (5) March 7, 2014
Grindstaff Nicholas M VP - Finance and Treasurer 0 — — 4 +5.9% (4) May 12, 2021
Lemon Jerry K Chief Accounting Officer 0 — — 4 +26.6% (4) March 16, 2021
Probst James Redgie Chief Operating Officer 0 — — 4 +35.6% (4) August 13, 2024
Wood Patrick III Director 0 — — 4 −21.2% (4) August 24, 2017
Jackman Worthing F Director 0 — — 3 +16.1% (3) June 5, 2023
Wayne Donald EVP and General Counsel 0 — — 3 +22.9% (2) November 10, 2025
Wisenbaker Randall C EVP - Operations 0 — — 3 −3.7% (3) September 1, 2017
Bosco Benadetto G Senior Vice President 0 — — 2 −5.7% (2) March 13, 2012
Disibio Ralph R Director 1 +17.0% (1) 100% 1 −13.6% (1) November 28, 2012
Ducey Gerald A Jr Pres. - Strategic Operations 0 — — 2 +25.9% (1) November 10, 2025
Golm Louis C Director 0 — — 2 −15.3% (2) December 3, 2012
Haddox James H Executive Vice President 0 — — 2 −25.8% (2) December 18, 2012
Jackman Worthing Director 0 — — 2 −9.9% (1) November 7, 2025
Oneil James F Pres. & Chief Oper. Officer 1 +12.8% (1) 100% 1 −32.1% (1) May 13, 2011
Ranck Bruce E Director 2 −6.5% (2) 50% 0 — December 4, 2014
Upperman Dorothy VP Tax 0 — — 2 +29.0% (2) June 8, 2023
Yancey Wilson M. JR. VP-Health/Safety & Environ. 0 — — 2 −16.7% (2) August 18, 2014
Gregory Paul Craig CSO & President-Pipeline&Ind 0 — — 1 +46.9% (1) November 4, 2020
Miller Darren B VP - IT & Administration 0 — — 1 −12.0% (1) August 10, 2012
Nobel Paul Chief Accounting Officer & SVP 0 — — 1 — May 6, 2026
O'brien Peter B. VP - Tax 0 — — 1 −25.5% (1) December 20, 2013
Shannon Margaret B Director 0 — — 1 −13.4% (1) March 5, 2024
Shapiro Daniel J Other 0 — — 1 −13.6% (1) November 28, 2012
Studer Karl W President, Electric Power 0 — — 1 +25.4% (1) August 23, 2024

Moves are the shares’ return including dividends minus the S&P 500’s, from the close on the first trading day after each report; the number of trades with a finished 12-month window is in brackets. Green means the trade went the insider’s way (a purchase ahead of the index, a sale followed by the shares trailing it). A trade reported both by a director or officer and by a fund or company they are linked to counts once here, under the person. Purchases count only where the share price actually traded was at least $5. These figures describe what the shares did, not why anyone traded. Insiders across all companies.

When several insiders traded Quanta Services

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Quanta Services in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After the 2 buying crowds with six months of prices, it averaged +2.6% against the index. After 12 selling crowds, +2.0%. One company's history is too short to judge by; the test across every company is the better guide.

MonthCrowd3 months on, vs S&P 5006 months12 months
November 28, 20254 selling+21.9%+40.2%not yet
August 30, 20244 selling+18.0%−12.0%+20.3%
March 28, 20245 selling−6.5%+4.4%−9.2%
May 31, 20233 selling+9.8%−5.0%+27.6%
March 31, 20213 selling−5.3%+21.5%+33.3%
November 30, 20208 selling+15.4%+20.1%+39.3%
December 31, 20182 buying+13.7%+9.6%+4.6%
September 29, 20173 selling−2.1%−13.3%−28.6%
March 31, 20173 selling−14.4%−6.9%−20.7%
August 29, 20144 selling−19.8%−27.3%−33.7%
August 31, 20123 selling+8.2%+10.9%−11.5%
March 30, 20123 selling+18.0%+14.9%+14.3%

Colours show whether the crowd was right: green when buyers were followed by a rise above the index, or sellers by a fall below it. Latest 12 of 14. Total returns from the month end; past patterns are not a forecast.

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