undamentalytics Newsletter

Mastec Inc insider trading

Every open-market purchase and sale by Mastec Inc'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.
Mastec Inc 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 Mastec Inc’s insiders pay?

From March 2, 2011 to June 5, 2026, 14 insiders reported 6 open-market purchases and 74 sales not made under a pre-set plan in Mastec Inc. Twelve months after each purchase was reported, the shares were +79.3% against the S&P 500 on average (median +83.9%), over 6 purchases with a full year of prices; 100% beat the index. After sales, the shares moved +7.3% 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 August 24, 2015 into $25,550 by November 2, 2026, +8.8% a year. It held shares 10% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $15,063 (+3.7% a year), and held throughout $48,000 (+15.1%).

$0$20.0k$40.0k 201520172019202120232025 $48.0k$25.6k$15.1k
Copying Mastec Inc's insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by Mastec Inc's insiders from August 24, 2015, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 10% of the time.
Mastec Inc: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Campbell C Robert EVP & CFO 0 — — 23 +14.6% (22) May 6, 2026
Csiszar Ernst N Director 0 — — 9 +13.1% (7) June 5, 2026
Apple Robert E COO 0 — — 8 +4.2% (8) March 5, 2021
Mas Jose Ramon CEO 2 +83.9% (2) 100% 5 −13.2% (5) August 27, 2015
Dwyer Robert J Director 0 — — 6 +16.9% (6) May 29, 2020
Johnson Julia L Director 1 +71.9% (1) 100% 5 −11.2% (5) March 16, 2018
Sorzano Jose S Director 0 — — 6 −1.2% (6) June 26, 2020
Jaumot Frank E Director 0 — — 3 −9.7% (3) November 13, 2012
Mas Jorge Director 2 +72.2% (2) 100% 1 +4.5% (1) October 2, 2015
Palomarez Javier Alberto Director 0 — — 3 +46.9% (2) March 27, 2026
De Cardenas Alberto EVP, General Counsel 0 — — 2 −0.2% (2) August 7, 2025
Love Timothy Michael CAO 0 — — 2 +17.4% (1) November 5, 2025
Harris Ray President 0 — — 1 −2.2% (1) December 21, 2012
Pita George CFO 1 +91.9% (1) 100% 0 — August 24, 2015

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 Mastec Inc

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Mastec Inc 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 1 buying crowd with six months of prices, it averaged +6.4% against the index. After 5 selling crowds, +0.2%. 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
May 29, 20263 selling−38.3%not yetnot yet
December 31, 20243 selling−9.6%+19.8%+52.1%
March 31, 20214 selling+4.9%−15.9%−25.3%
August 31, 20153 buying+17.2%+6.4%+69.1%
November 30, 20125 selling+23.9%+17.9%+7.5%
September 30, 20115 selling−13.0%−22.0%−16.3%
March 31, 20113 selling−5.2%+1.1%−21.5%

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. Total returns from the month end; past patterns are not a forecast.

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