How many insider trades does FilingIQ track for MTZ?

FilingIQ tracks 657 Form 4 insider transactions for MTZ (MASTEC INC), covering filings from Mar 16, 2014 onwards. 13 of those were filed in the last 90 days.

Are MTZ insiders net buyers or net sellers?

Across the full Form 4 history for MTZ, 10 transactions (2%) were open-market purchases and 111 (17%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.

Where does MTZ insider data come from?

Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.

What sector is MTZ in?

MASTEC INC (MTZ) is classified in the Industrials sector, specifically Engineering & Construction, with a current market capitalisation of $22.23B.

MTZ insider trading

NYSE Industrials

MASTEC INC — scored insider trade history from SEC Form 4 filings, parsed and contextualised by FilingIQ.

Total Form 4 trades

657

Last 90 days

Buys / sells

2% / 17%

Market cap

$22.23B

About MASTEC INC

MasTec, Inc., an infrastructure construction company, provides engineering, building, installation, maintenance, and upgrade services for communications, energy, utility, and other infrastructure primarily in the United States and Canada. It operates through five segments: Communications, Clean Energy and Infrastructure, Power Delivery, Pipeline Infrastructure, and Other. The company build infrastructure for wireless and wireline/fiber communications; clean energy infrastructure comprising renewable energy power generation; pipeline infrastructure, including natural gas, water, carbon capture sequestration, and other product transport; power delivery services, such as electrical and gas transmission, and distribution systems; industrial and heavy civil infrastructure, including roads, bridges, and rail; and water infrastructure. It also installs electrical and other gas distribution and transmission systems, power generation, power generation, civil and industrial facilities, pipelines, and fiber optic and other cables, as well as install-to-the-home services. In addition, the company offers maintenance and upgrade support services comprising maintenance of customers' distribution facilities, networks, and infrastructure, including communications, power generation, pipeline, electrical distribution and transmission, and civil and industrial infrastructure; service restoration for natural disasters and accidents; and routine replacements and upgrades to overhauls. Its customers include wireless and wireline/fiber service providers, broadband operators, install-to-the-home service providers, public and private energy providers, including renewable and other energy providers, pipeline operators, civil, transportation, and industrial infrastructure providers, as well as government entities. MasTec, Inc. was founded in 1929 and is headquartered in Coral Gables, Florida.

Company website: www.mastec.com

MTZ insider activity at a glance

FilingIQ has scored 657 insider transactions for MTZ since Mar 16, 2014. The most recent filing in our index is dated May 4, 2026.

Across the full history, 10 open-market purchases and 111 open-market sales were filed under transaction codes P and S respectively. Compensatory share awards (code A) and option exercises (code M) are tracked separately and not counted here.

The average FilingIQ composite score on MTZ insider trades is 61.1/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.

View live MTZ trades on FilingIQ Raw filings on SEC EDGAR

Latest MTZ Form 4 filings

DiMarco Paul CFO

S Oct 2, 2023

Most recent disclosures. Sign up to filter by score, transaction code, or insider role.

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13F funds holding MTZ

Electron Capital Partners, LLC

$153.25M · 7.9% of AUM

SG Capital Management LLC

$48.80M · 6.1% of AUM

Wolf Hill Capital Management, LP

$39.91M · 3.7% of AUM

Frequently asked

How many insider trades does FilingIQ track for MTZ?: FilingIQ tracks 657 Form 4 insider transactions for MTZ (MASTEC INC), covering filings from Mar 16, 2014 onwards. 13 of those were filed in the last 90 days.
Are MTZ insiders net buyers or net sellers?: Across the full Form 4 history for MTZ, 10 transactions (2%) were open-market purchases and 111 (17%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
Where does MTZ insider data come from?: Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.
What sector is MTZ in?: MASTEC INC (MTZ) is classified in the Industrials sector, specifically Engineering & Construction, with a current market capitalisation of $22.23B.

Methodology & sources

Every MTZ insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.