The Filings Report

MasTec, Inc. insider trading

MTZfinancial statementsForm 4 filings on EDGAR130 transactions since Nov 1, 2024

From August 4, 2026 to November 1, 2026, 0 insiders at MasTec, Inc. bought $0 of stock in the open market, and 0 sold $0. Officers and directors accounted for $0 of purchases and $0 of sales. The last reported transaction was an award by Miranda Manuel Benito on August 14, 2026.

The answer card and chart use the same period. Change the range above the chart to update both. Form 4 filings through August 18, 2026; awards, option exercises, tax withholding and gifts are excluded from these totals.

Stock price and insider activity

Daily price candles with insider purchases and sales directly beneath them on the same timeline. Bars show individual days; totals sum all days in the selected period.

MTZ daily priceSplit-adjusted prices in US dollars

Bought $0Sold $0Aug 4, 2026 – Nov 1, 2026

Oct 30, 2026O $169.00 · H $189.03 · L $169.00 · C $186.06Bought $0 (0)Sold $0 (0)
$156$197$238$279$3202026-08-04: open $266.00, high $275.44, low $263.50, close $271.712026-08-05: open $270.49, high $284.14, low $266.67, close $266.752026-08-06: open $263.66, high $270.26, low $258.52, close $258.632026-08-07: open $262.51, high $274.71, low $254.83, close $272.462026-08-10: open $274.00, high $283.00, low $267.98, close $268.282026-08-11: open $273.77, high $279.75, low $270.54, close $272.652026-08-12: open $282.97, high $287.67, low $279.66, close $281.112026-08-13: open $283.00, high $292.25, low $283.00, close $286.112026-08-14: open $287.92, high $298.37, low $284.32, close $297.592026-08-17: open $301.50, high $311.08, low $299.70, close $302.482026-08-18: open $293.33, high $298.27, low $279.52, close $280.132026-08-19: open $280.47, high $284.63, low $262.14, close $272.072026-08-20: open $270.31, high $273.21, low $265.66, close $271.862026-08-21: open $276.40, high $278.59, low $263.08, close $266.262026-08-24: open $264.99, high $267.94, low $252.34, close $255.362026-08-25: open $256.05, high $263.53, low $242.62, close $246.852026-08-26: open $244.31, high $250.91, low $243.56, close $248.732026-08-27: open $256.25, high $257.47, low $246.63, close $251.132026-08-28: open $249.32, high $252.05, low $240.24, close $241.002026-08-31: open $241.84, high $242.70, low $235.50, close $239.782026-09-01: open $237.90, high $241.19, low $233.62, close $237.742026-09-02: open $237.78, high $238.83, low $233.28, close $235.332026-09-03: open $235.18, high $238.71, low $230.27, close $232.282026-09-04: open $234.75, high $240.79, low $232.00, close $237.192026-09-08: open $239.64, high $252.35, low $239.50, close $246.182026-09-09: open $251.63, high $251.63, low $240.40, close $240.682026-09-10: open $236.73, high $240.27, low $230.10, close $232.202026-09-11: open $235.26, high $241.75, low $234.39, close $240.412026-09-14: open $229.14, high $234.08, low $225.15, close $227.702026-09-15: open $229.62, high $232.29, low $221.65, close $222.702026-09-16: open $227.37, high $233.79, low $224.60, close $225.622026-09-17: open $234.47, high $235.00, low $206.50, close $207.752026-09-18: open $210.53, high $216.99, low $208.10, close $214.382026-09-21: open $217.23, high $225.81, low $213.53, close $222.902026-09-22: open $223.61, high $226.74, low $220.01, close $221.692026-09-23: open $221.78, high $225.01, low $213.93, close $217.522026-09-24: open $214.50, high $216.63, low $211.18, close $211.952026-09-25: open $213.27, high $217.46, low $210.25, close $212.852026-09-28: open $212.96, high $213.98, low $203.38, close $204.092026-09-29: open $206.87, high $212.44, low $206.00, close $210.232026-09-30: open $211.97, high $218.52, low $208.05, close $213.622026-10-01: open $215.30, high $215.59, low $206.15, close $213.662026-10-02: open $216.00, high $223.20, low $215.44, close $215.932026-10-05: open $216.50, high $224.02, low $212.88, close $219.402026-10-06: open $222.29, high $233.21, low $221.00, close $228.302026-10-07: open $223.00, high $224.08, low $216.01, close $223.372026-10-08: open $217.93, high $219.34, low $209.66, close $216.662026-10-09: open $218.91, high $220.20, low $210.01, close $212.652026-10-12: open $210.64, high $211.97, low $204.24, close $206.852026-10-13: open $202.58, high $207.88, low $199.28, close $206.122026-10-14: open $205.16, high $205.16, low $192.42, close $194.462026-10-15: open $190.00, high $193.49, low $183.50, close $191.632026-10-16: open $191.50, high $193.74, low $187.07, close $191.022026-10-19: open $195.06, high $197.31, low $187.85, close $190.912026-10-20: open $187.17, high $191.87, low $183.20, close $187.342026-10-21: open $193.47, high $193.47, low $178.07, close $180.962026-10-22: open $175.85, high $178.09, low $169.56, close $171.552026-10-23: open $170.64, high $172.32, low $164.31, close $171.052026-10-26: open $173.40, high $177.89, low $171.49, close $172.592026-10-27: open $175.20, high $177.48, low $173.50, close $176.502026-10-28: open $183.35, high $183.41, low $176.77, close $181.002026-10-29: open $183.13, high $189.83, low $173.90, close $177.822026-10-30: open $169.00, high $189.03, low $169.00, close $186.06Insider purchases / sales · USD$0No open-market purchases or sales in this period.Aug 4Aug 26Sep 17Oct 9Oct 30

purchases above zero; sales below. Both use the transaction date and the same dollar scale. Hover, tap, or use arrow keys to inspect a date. Awards, exercises, tax withholding and gifts are excluded.

Dates with prices or insider activity are spaced evenly; empty weekends and holidays are omitted. Prices through Oct 30, 2026. Insider data through Nov 1, 2026. Prices are adjusted for splits; transaction values are reported dollars.

Every transaction

130 transactions from November 1, 2024 to November 1, 2026, newest first. Open-market purchases and sales are coloured; awards, exercises, tax withholding and gifts are grey and not counted.

TradedInsiderRoleTransactionSharesPriceValueHeld afterFiled
Aug 14, 2026Miranda Manuel BenitoDirectoraward152$0.00—152Aug 18, 2026
Aug 14, 2026Palomarez Javier AlbertoDirectoraward139$0.00—10,805Aug 18, 2026
Aug 14, 2026Palomarez Javier AlbertoDirectortax withholding31$297.59$9K10,774Aug 18, 2026
Aug 14, 2026Csiszar Ernst NDirectoraward152$0.00—10,968Aug 18, 2026
Aug 14, 2026Csiszar Ernst NDirectortax withholding34$297.59$10K10,934Aug 18, 2026
Aug 14, 2026Campbell C RobertDirectoraward139$0.00—30,880Aug 18, 2026
Aug 14, 2026Spiro AlexDirectoraward139$0.00—139Aug 18, 2026
Aug 14, 2026Dwyer Robert JDirectoraward139$0.00—20,991Aug 18, 2026
Aug 14, 2026Dwyer Robert JDirectortax withholding31$297.59$9K20,960Aug 18, 2026
Aug 14, 2026Johnson Julia LDirectoraward139$0.00—73,474Aug 18, 2026
Aug 14, 2026Parker Ava LDirectoraward177$0.00—5,569Aug 18, 2026
Aug 14, 2026Parker Ava LDirectortax withholding20$297.59$6K5,549Aug 18, 2026
Jun 3, 2026Csiszar Ernst NDirectoropen-market sale6,500$371.17$2M10,816Jun 5, 2026
May 15, 2026Csiszar Ernst NDirectoraward104$0.00—17,339May 19, 2026
May 15, 2026Csiszar Ernst NDirectortax withholding23$434.77$10K17,316May 19, 2026
May 15, 2026Dwyer Robert JDirectoraward95$0.00—20,873May 19, 2026
May 15, 2026Dwyer Robert JDirectortax withholding21$434.77$9K20,852May 19, 2026
May 15, 2026Parker Ava LDirectoraward121$0.00—5,406May 19, 2026
May 15, 2026Parker Ava LDirectortax withholding14$434.77$6K5,392May 19, 2026
May 15, 2026Campbell C RobertDirectoraward95$0.00—30,741May 19, 2026
May 15, 2026Palomarez Javier AlbertoDirectoraward95$0.00—10,687May 19, 2026
May 15, 2026Palomarez Javier AlbertoDirectortax withholding21$434.77$9K10,666May 19, 2026
May 15, 2026Johnson Julia LDirectoraward95$0.00—73,335May 19, 2026
May 4, 2026Campbell C RobertDirectoropen-market sale3,000$417.00$1M30,646May 6, 2026
Mar 25, 2026Palomarez Javier AlbertoDirectoropen-market sale950$325.43$309K10,592Mar 27, 2026
Mar 18, 2026DiMarco PaulCFOaward9,074$0.00—66,627Mar 20, 2026
Mar 18, 2026Apple Robert ECOOaward11,548$0.00—183,591Mar 20, 2026
Mar 18, 2026de Cardenas AlbertoEVP, General Counselaward6,269$0.00—102,780Mar 20, 2026
Mar 18, 2026Mas JorgeDirectoraward15,838$0.00—5MMar 20, 2026
Mar 18, 2026Mas Jose RamonCEO, Directoraward26,397$0.00—3MMar 20, 2026
Mar 17, 2026Love Timothy MichaelCAOaward492$0.00—10,292Apr 17, 2026
Mar 10, 2026Mas JorgeDirectortax withholding15,958$297.81$5M5MMar 12, 2026
Mar 10, 2026Mas Jose RamonCEO, Directortax withholding28,184$297.81$8M3MMar 12, 2026
Mar 10, 2026Apple Robert ECOOtax withholding12,206$297.81$4M172,043Mar 12, 2026
Mar 10, 2026de Cardenas AlbertoEVP, General Counseltax withholding4,838$297.81$1M96,511Mar 12, 2026
Mar 3, 2026Csiszar Ernst NDirectoropen-market sale6,500$300.40$2M17,235Mar 5, 2026
Feb 13, 2026Palomarez Javier AlbertoDirectortax withholding34$269.53$9K11,542Feb 18, 2026
Feb 13, 2026Palomarez Javier AlbertoDirectoraward154$0.00—11,576Feb 18, 2026
Feb 13, 2026Johnson Julia LDirectoraward154$0.00—73,240Feb 18, 2026
Feb 13, 2026Dwyer Robert JDirectoraward154$0.00—20,812Feb 18, 2026
Feb 13, 2026Dwyer Robert JDirectortax withholding34$269.53$9K20,778Feb 18, 2026
Feb 13, 2026Csiszar Ernst NDirectortax withholding37$269.53$10K23,735Feb 18, 2026
Feb 13, 2026Csiszar Ernst NDirectoraward168$0.00—23,772Feb 18, 2026
Feb 13, 2026Campbell C RobertDirectoraward154$0.00—33,646Feb 18, 2026
Feb 13, 2026Parker Ava LDirectortax withholding22$269.53$6K5,285Feb 18, 2026
Feb 13, 2026Parker Ava LDirectoraward195$0.00—5,307Feb 18, 2026
Nov 14, 2025Dwyer Robert JDirectoraward215$0.00—20,706Nov 18, 2025
Nov 14, 2025Dwyer Robert JDirectortax withholding48$192.22$9K20,658Nov 18, 2025
Nov 14, 2025Johnson Julia LDirectoraward215$0.00—73,086Nov 18, 2025
Nov 14, 2025Palomarez Javier AlbertoDirectoraward215$0.00—11,470Nov 18, 2025

Who the insiders are

Everyone who reported a transaction since November 1, 2024, by open-market value over twelve months. Shares held are after the insider’s latest directly held transaction.

InsiderRoleLast transactionKindShares heldBought, 12 monthsSold, 12 monthsSales under a plan
Csiszar Ernst NDirectorAug 14, 2026award10,968—$4M (2)0 of 2
Campbell C RobertDirectorAug 14, 2026award30,880—$1M (1)0 of 1
Love Timothy MichaelCAOMar 17, 2026award10,292—$398K (1)0 of 1
Palomarez Javier AlbertoDirectorAug 14, 2026award10,805—$309K (1)0 of 1
Dwyer Robert JDirectorAug 14, 2026award20,991———
Parker Ava LDirectorAug 14, 2026award5,569———
Apple Robert ECOOMar 18, 2026award183,591———
Johnson Julia LDirectorAug 14, 2026award73,474———
de Cardenas AlbertoEVP, General CounselMar 18, 2026award102,780———
Mas Jose RamonCEO, DirectorMar 18, 2026award3M———
DiMarco PaulCFOMar 18, 2026award66,627———
Mas JorgeDirectorMar 18, 2026award5M———
Miranda Manuel BenitoDirectorAug 14, 2026award152———
Spiro AlexDirectorAug 14, 2026award139———

Questions

Are MasTec, Inc. insiders buying or selling?

Over the twelve months to November 1, 2026, 4 insiders at MasTec, Inc. sold $6M of stock in the open market, all by officers and directors, and no insider bought. Net, insiders sold $6M. Only open-market purchases and sales are counted.

Who sold the most MasTec, Inc. stock in the last year?

Csiszar Ernst N (Director) sold $4M in 2 open-market sales over the twelve months to November 1, 2026.

Do MasTec, Inc. executives sell under 10b5-1 plans?

0 of the 5 open-market sales in the last twelve months (0%) were reported as made under a Rule 10b5-1 trading plan, set up in advance. A sale under a plan is still counted as a sale.

What counts as insider buying here?

Only open-market purchases (Form 4 code P) and sales (code S) by officers, directors and 10% owners. Stock awards, option exercises, shares withheld for tax and gifts are listed in the table but never counted as buying or selling.

More on MasTec, Inc.

From Form 4, 4/A and 5 filings with the SEC. A record of insider transactions, not a recommendation.