MasTec, Inc. (MTZ) Insider Trading

Last 12 months

Insiders sold $6.32M and bought nothing on the open market.

None of the selling was scheduled in advance under a 10b5-1 plan. Director Ernst N Csiszar sold $2.41M on Jun 3, 38% of their stake, outside a plan. The last open-market buy by an executive or director was in Sep 2015.

Net open-market

−$6.32M

0 buys · 5 sales

Under a 10b5-1 plan

of the value sold

Insiders who bought / sold

0 / 4

executives and directors

Last open-market buy

Sep 2015

Sep 30, 2015

Get an email when MTZ's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Jun 3	Ernst N Csiszar Director	SoldNo plan	6,500	$371.17	$2.41M	38%	Form 4
May 4	C Robert Campbell Director	SoldNo plan	3,000	$417.00	$1.25M	8.9%	Form 4
Mar 25	Javier Alberto Palomarez Director	SoldNo plan	950	$325.43	$309k	8.2%	Form 4
Mar 3	Ernst N Csiszar Director	SoldNo plan	6,500	$300.40	$1.95M	27%	Form 4
Nov 3, 2025	Timothy Michael Love CAO	SoldNo plan	1,929	$206.15	$398k	12%	Form 4
Sep 29, 2025	C Robert Campbell Director	SoldNo plan	2,000	$210.39	$421k	5.7%	Form 4
Sep 18, 2025	Robert E Apple COO	Sold10b5-1 plan 2 parts	10,000	$200.44 average	$2M	4.8%	Form 4
Sep 11, 2025	C Robert Campbell Director	SoldNo plan	3,000	$190.39	$571k	7.8%	Form 4
Aug 5, 2025	Alberto De Cardenas EVP, General Counsel	SoldNo plan 2 parts	10,000	$180.70 average	$1.81M	8.4%	Form 4
Jul 16, 2025	Robert E Apple COO	Sold10b5-1 plan	10,000	$175.00	$1.75M	4.6%	Form 4
May 12, 2025 – May 13, 2025	C Robert Campbell Director	SoldNo plan 2 parts	5,000	$154.33 average	$772k	12%	Form 4
Mar 24, 2025	Ernst N Csiszar Director	SoldNo plan	2,517	$131.63	$331k	9.9%	Form 4
Dec 4, 2024	Javier Alberto Palomarez Director	SoldNo plan	200	$143.00	$29k	1.8%	Form 4
Nov 26, 2024	Robert E Apple COO	Sold10b5-1 plan	10,000	$150.00	$1.5M	4.8%	Form 4
Nov 26, 2024	C Robert Campbell Director	SoldNo plan	3,000	$145.00	$435k	6.6%	Form 4
Nov 11, 2024	C Robert Campbell Director	SoldNo plan	3,000	$145.42	$436k	6.2%	Form 4
Nov 6, 2024	Timothy Michael Love CAO	SoldNo plan	600	$140.81	$84k	3.9%	Form 4
Nov 1, 2024	Robert E Apple COO	Sold10b5-1 plan 7 parts	19,023	$135.63 average	$2.58M	8.3%	Form 4

Jun 3No plan
Ernst N Csiszar
Director · sold 6,500 at $371.17
$2.41M
38% of stake
May 4No plan
C Robert Campbell
Director · sold 3,000 at $417.00
$1.25M
8.9% of stake
Mar 25No plan
Javier Alberto Palomarez
Director · sold 950 at $325.43
$309k
8.2% of stake
Mar 3No plan
Ernst N Csiszar
Director · sold 6,500 at $300.40
$1.95M
27% of stake
Nov 3, 2025No plan
Timothy Michael Love
CAO · sold 1,929 at $206.15
$398k
12% of stake
Sep 29, 2025No plan
C Robert Campbell
Director · sold 2,000 at $210.39
$421k
5.7% of stake
Sep 18, 202510b5-1 plan
Robert E Apple
COO · sold 10,000 at avg $200.44
$2M
4.8% of stake
Sep 11, 2025No plan
C Robert Campbell
Director · sold 3,000 at $190.39
$571k
7.8% of stake
Aug 5, 2025No plan
Alberto De Cardenas
EVP, General Counsel · sold 10,000 at avg $180.70
$1.81M
8.4% of stake
Jul 16, 202510b5-1 plan
Robert E Apple
COO · sold 10,000 at $175.00
$1.75M
4.6% of stake
May 12, 2025 – May 13, 2025No plan
C Robert Campbell
Director · sold 5,000 at avg $154.33
$772k
12% of stake
Mar 24, 2025No plan
Ernst N Csiszar
Director · sold 2,517 at $131.63
$331k
9.9% of stake
Dec 4, 2024No plan
Javier Alberto Palomarez
Director · sold 200 at $143.00
$29k
1.8% of stake
Nov 26, 202410b5-1 plan
Robert E Apple
COO · sold 10,000 at $150.00
$1.5M
4.8% of stake
Nov 26, 2024No plan
C Robert Campbell
Director · sold 3,000 at $145.00
$435k
6.6% of stake
Nov 11, 2024No plan
C Robert Campbell
Director · sold 3,000 at $145.42
$436k
6.2% of stake
Nov 6, 2024No plan
Timothy Michael Love
CAO · sold 600 at $140.81
$84k
3.9% of stake
Nov 1, 202410b5-1 plan
Robert E Apple
COO · sold 19,023 at avg $135.63
$2.58M
8.3% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch MTZ, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Spot a number that looks wrong? Check it in MTZ's SEC filings or

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Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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