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MTZ · Mastec Inc

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TEAM-0.32% 13F +439META+3.01% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV+4.49% 13F +693CRM+2.92% 13F +1,018CVNA-0.98% 13F +794TPL-0.71% 13F +444NET+4.32% 13F +710MSTR+17.56% 13F +526DELL+4.91% 13F +1,203CRWD+5.68% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475TEAM-0.32% 13F +439META+3.01% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV+4.49% 13F +693CRM+2.92% 13F +1,018CVNA-0.98% 13F +794TPL-0.71% 13F +444NET+4.32% 13F +710MSTR+17.56% 13F +526DELL+4.91% 13F +1,203CRWD+5.68% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475

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MTZ

Name: MASTEC INC (MTZ) insider trading and ownership data
Creator: WaveMan
License: https://wave-man.com/terms

MASTEC INC

CONSTRUCTION · WATER, SEWER, PIPELINE, COMM & POWER LINE CONSTRUCTION · CIK 0000015615

CONGRESS · 1☆ WATCH

INSIDER NET · 180D

-$4.0M

open-market buys minus sells, Form 4 codes P and S

INSIDER BUYERS · 180D

CONGRESS BUYERS · 1Y

FUNDS ADDED · QTR

517

13F, latest reported quarter

REVENUE GROWTH

+16.2%

XBRL, annual

NET MARGIN

2.8%

SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST

INSIDERS

net -$4.0M over 180 days

below 63% of Construction

CONGRESS

1 member bought in the last year

the lowest in Construction

FUNDS

517 funds added or opened last quarter

more than 94% of Construction

REVENUE

+16.2% year over year

more than 63% of Construction

MARGIN

2.8% net margin

below 53% of Construction

BUYBACKS

$77.3M repurchased, FY to 2025-12-31

more than 58% of Construction

SHORT

5.5% of shares outstanding short · 2.7 days to cover · settled 2026-07-31

more than 67% of Construction

THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET

Insiders are net sellers: -$4.0M across 3 people in 180 days.

517 funds added or opened positions in the latest 13F quarter, of 912 holders.

1 member of Congress reported buying it this year.

The year, with the filings on it

Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail

TOTAL 12M RETURN +29.0%

+29.0%12M

INSIDER SELL

INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY

Live price

Daily candles from TradingView, on their licence — no filings are marked on this one

WHY THIS NAME IS ON THE DESK

The complete filing record, in one place.

The record shows a net $4.0M sold by insiders over 180 days, 517 funds added last quarter, 1 Congress member(s) bought in 12 months. Every figure is a federal filing, dated the day it became public.

Backtest this pattern Open the screener

Same sector, ranked by filing activity

Sector from the SEC's own SIC classification

MHO IESC DFH AMRC TMHC MTH IBP NVR SLND AGX SHIM ESOA

Insider transactions

Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, MASTEC INC insiders sold a net $4.0M of stock across 41 Form 4 purchases and sales, with 0 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-05.

INSIDER

FILED

VALUE

Csiszar Ernst N

Director

SELL

2026-06-03

6,500.0

$2.4M

Campbell C Robert

Director

SELL

2026-05-04

3,000.0

$1.3M

Palomarez Javier Alberto

Director

SELL

2026-03-25

950.0

$309.2K

Csiszar Ernst N

Director

SELL

2026-03-03

6,500.0

$2.0M

Love Timothy Michael

CAO

SELL

2025-11-03

1,929.0

$397.7K

41 TRANSACTIONS ON RECORD

Showing the most recent few. Create a free account to see 36 more transactions on record, the cross-source screener and CSV export. We store only your email address, and there is no password to create.

Institutional holders

13F · holdings as of the latest quarter funds have reported

BlackRock, Inc.

7,638,487.0 sh

$3.2B

Hill City Capital, LP

4,310,000.0 sh

$1.8B

PECONIC PARTNERS LLC

3,678,431.0 sh

$1.5B

VANGUARD CAPITAL MANAGEMENT LLC

2,831,849.0 sh

$1.2B

VANGUARD PORTFOLIO MANAGEMENT LLC

2,812,131.0 sh

$1.2B

SCHEDULE 13D/G

No 5%+ ownership filings

Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.

FORM 144

No planned-sale notices

No insider has notified an intent to sell. This is the panel to watch after a run-up.

Fund concentration

N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show

Kirr, Marbach Partners Value Fund

$9.6M POSITION · AS OF 2026-03-31

9.3%

Sterling Capital Mid Cap Relative Value Fund

$3.8M POSITION · AS OF 2026-03-31

7.4%

Hennessy Cornerstone Mid Cap 30 Fund

$80.8M POSITION · AS OF 2026-04-30

6.3%

Smart Earnings Growth 30 ETF

$1.2M POSITION · AS OF 2026-03-31

5.4%

Sterling Capital Small Cap Value Fund

$8.1M POSITION · AS OF 2026-03-31

4.7%

First Trust RBA American Industrial Renaissance ETF

$389.6M POSITION · AS OF 2026-03-31

4.6%

SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK

Executive pay vs shareholder return · Jose R. Mas

DEF 14A pay-versus-performance disclosure · both the headline pay and the SEC's mark-to-market figure, beside the return the company delivered and the return of the peer group it chose itself

CEO TOTAL

ACTUALLY PAID

OTHER NEOs AVG

TSR

PEER TSR

2023

$9.6M

$7.2M

$2.8M

+18%

+158%

2022

$9.6M

$6.3M

$3.6M

+33%

+90%

2021

$9.1M

$18.0M

$3.5M

+44%

+80%

2020

$8.8M

$6.8M

$3.2M

+6%

+24%

TAGGED BY THE COMPANY UNDER SEC ITEM 402(v) · RETURN IS CUMULATIVE FROM THE START OF THE DISCLOSURE PERIOD · GREEN WHERE THE COMPANY BEAT ITS OWN PEER GROUP

Fundamentals

Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all

	2025-12	2024-12	2023-12	2022-12
REVENUE	$14.3B	$12.3B	$12.0B	$9.8B
NET INCOME	$422.0M	$199.4M	$-47.3M	$33.9M
EPS (DILUTED)	5.07	2.06	-0.64	0.42
OPERATING CASH FLOW	$545.7M	$1.1B	$687.3M	$352.3M
CASH	$396.0M	$399.9M	$529.6M	$370.6M
BUYBACKS	$77.3M	$0	$0	$81.3M

SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-05 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE