MASTEC (MTZ) stock: insider trades, news & valuation
Heavy sellingShare price and insider trades
MASTEC insider trading at a glance (Oct 9, 2026): in the past 12 months, 0 insiders bought $0 and 4 sold $6.3M of MTZ stock on the open market.
Get emailed when insiders cluster-buy stocks like MTZ
Free alerts the day a new cluster buy is filed, plus the Monday report of the week's biggest insider trades.
Free · unsubscribe anytime · not investment advice · see a sample issue
MTZ insider buying and selling by quarter
Open-market purchases (green, above the line) and sales (red, below), by trade date.
| Quarter | Bought | Purchases | Sold | Sales |
|---|---|---|---|---|
| Q4 2026 | — | 0 | — | 0 |
| Q3 2026 | — | 0 | — | 0 |
| Q2 2026 | — | 0 | $3.7M | 2 |
| Q1 2026 | — | 0 | $2.3M | 2 |
| Q4 2025 | — | 0 | $398K | 1 |
| Q3 2025 | — | 0 | $421K | 1 |
Valuation, profit and volume
Summary
Over the past 12 months, 0 MASTEC INC insiders reported open-market purchases totaling $0, while 4 insiders reported sales totaling $6.3M. 0 of 6 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
Members of Congress who traded MTZ
From STOCK Act disclosures. Reported up to 45 days after the trade, in dollar ranges.
| Member | Trade | Traded | Reported | Since trade |
|---|---|---|---|---|
| Markwayne MullinSenate | Sold $15,001 - $50,000 | Feb 4, 2026 | Mar 2, 2026 | -9.7% |
| Markwayne MullinSenate | Sold $15,001 - $50,000 | Dec 18, 2025 | Jan 13, 2026 | -0.6% |
| Markwayne MullinSenate | Sold $15,001 - $50,000 | Dec 18, 2025 | Jan 13, 2026 | -0.6% |
Insider transactions
Open-market purchases and sales.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| Jun 5SEC | Ernst N CsiszarDirector | Sell | 6,50010,816 held (−38%) | $371.17 | $2.4M | -42.7% | — |
| May 6SEC | C Robert CampbellDirector | Sell | 3,00030,646 held (−9%) | $417.00 | $1.3M | -49.0% | — |
| Mar 27SEC | Javier Alberto PalomarezDirector | Sell | 95010,592 held (−8%) | $325.43 | $309K | -34.7% | — |
| Mar 5SEC | Ernst N CsiszarDirector | Sell | 6,50017,235 held (−27%) | $300.40 | $2.0M | -29.2% | — |
| Nov 5SEC | Timothy Michael LoveCao | Sell | 1,9299,757 held (−17%) | $206.15 | $398K | +3.2% | — |
| Oct 1SEC | C Robert CampbellDirector | Sell | 2,00033,277 held (−6%) | $210.39 | $421K | +1.1% | — |
Insiders at MASTEC INC
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Ernst N CsiszarDirector | — | $4.4M | Jun 5, 2026 | — |
| C Robert CampbellDirector | — | $1.7M | May 6, 2026 | — |
| Timothy Michael LoveCao | — | $398K | Nov 5, 2025 | — |
| Javier Alberto PalomarezDirector | — | $309K | Mar 27, 2026 | — |
MTZ stock: common questions
Are MASTEC INC insiders buying MTZ stock?
In the past 12 months, 0 insiders reported open-market purchases of MTZ worth $0.
Are MASTEC INC insiders selling MTZ stock?
4 insiders reported sales worth $6.3M over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.
What is MTZ's 52-week range?
Over the past year MTZ has traded between $190.08 and $437.51. It last closed at $212.65 on Oct 9, 2026.