Insider txns (12m)
61
Stock / equity
MTZ MASTEC INC
- Company
- MASTEC INC
- Security
- Equity
- Size, estimated from filings
- Large cap ($10B – $200B)
- Insiders on record
- 14
- Members of Congress
- 3
- Latest trade on record
- August 21, 2026
MTZ (MASTEC INC) has 61 disclosed insider transactions from 14 insiders in the last 12 months (0 open-market buys, 25 sales, about $24.7M at reported prices) and 7 congressional trades from 3 members of Congress. The most recent disclosure was filed September 12, 2026.
Open-market buys / sales
0 / 25
Congress trades (12m)
7
Distinct filers (12m)
17
Share price
Price and chart by TradingView for MASTEC INC. US share prices here are delayed, not real-time. The trade records on this page come from government filings, not from this chart.
MTZ in charts
Who is trading this stock
Which people account for the buying and selling over the last 12 months?
BoughtSold
8 people account for the disclosed buying and selling in MTZ over the last 12 months; the most active is MAS JOSE RAMON with $8.4M.
Prices insiders traded at
What price did insiders buy and sell at? Each marker is one open-market trade at the share price reported on its Form 4.
▲ Bought▼ SoldAverage reported price that day
Insiders reported 6 open-market trades in MTZ since Sep 29, 2025, at prices from $206 to $417; the most recent was a sale at $371 on Jun 3, 2026. These are the prices on the filings, not adjusted for stock splits, and not a market price series.
Insider holdings over time
Is an insider building or unwinding a position? Shares held directly after each filing.
Csiszar Ernst NCampbell C Robert
Csiszar Ernst N reported 10,934 shares held after the latest filing, against 23,604 at the first on record.
Lobbying spend by quarter
How much has MASTEC INC reported spending on federal lobbying?
MASTEC INC reported $250K in lobbying over the last eight quarters, from filings matched by exact company name.
Insiders trading MTZ
Everyone who filed a Form 4 for this ticker, by number of rows on record. "Bought" and "sold" count open-market purchases (code P) and sales only; awards, option exercises and shares withheld for tax are in the row count but not in those two columns.
| Insider | Role | Rows | Bought | Sold | Value bought | Value sold | Latest |
|---|---|---|---|---|---|---|---|
| Csiszar Ernst N | Director | 10 | 0 | 6 | — | $4.4M | August 14, 2026 |
| Palomarez Javier Alberto | Director | 9 | 0 | 5 | — | $346K | August 14, 2026 |
| Dwyer Robert J | Director | 8 | 0 | 4 | — | $37K | August 14, 2026 |
| Parker Ava L | Director | 8 | 0 | 4 | — | $24K | August 14, 2026 |
| Campbell C Robert | Director | 6 | 0 | 2 | — | $1.7M | August 14, 2026 |
| JOHNSON JULIA L | Director | 4 | 0 | 0 | — | — | August 14, 2026 |
| MAS JORGE | Director | 4 | 0 | 1 | — | $4.8M | August 11, 2026 |
| MAS JOSE RAMON | CEO | 4 | 0 | 1 | — | $8.4M | August 11, 2026 |
| Love Timothy Michael | CAO | 3 | 0 | 2 | — | $528K | March 17, 2026 |
| Apple Robert E | COO | 2 | 0 | 1 | — | $3.6M | March 18, 2026 |
| de Cardenas Alberto | EVP, General Counsel | 2 | 0 | 1 | — | $1.4M | March 18, 2026 |
| DiMarco Paul | CFO | 2 | 0 | 1 | — | $615K | March 18, 2026 |
| Miranda Manuel Benito | Director | 1 | 0 | 0 | — | — | August 14, 2026 |
| Spiro Alex | Director | 1 | 0 | 0 | — | — | August 14, 2026 |
What kind of transactions these are 4 Form 4 codes
| Code | Meaning | Rows | Shares | Value at reported prices |
|---|---|---|---|---|
| A | Grant or award | 32 | 73,747 | — |
| F | Shares withheld for tax | 22 | 65,233 | $19.1M |
| S | Open-market sale | 6 | 20,879 | $6.7M |
| J | Other acquisition or disposal | 4 | 2,880,258 | — |
What each code means: Form 4 transaction codes.
Members of Congress trading MTZ
Members whose periodic transaction reports name this ticker. Amounts are the sums of the ranges as filed.
| Member | Seat | Trades | Bought | Sold | Range as filed | Latest |
|---|---|---|---|---|---|---|
| Markwayne Mullin | Senator (OK), Republican | 3 | 0 | 3 | $45K–$150K | February 4, 2026 |
| Lisa C. McClain | Representative (MI, District 9), Republican | 3 | 1 | 2 | $3,003–$45K | October 31, 2025 |
| Thomas H. Kean, Jr. | Representative (NJ, District 7), Republican | 1 | 1 | 0 | $1,001–$15K | August 21, 2026 |
Insider transactions
| Filer | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| Miranda Manuel Benito | Other A | August 14, 2026 | August 18, 2026 | 4d | 152 | — | — | Form 4 ↗ | ||
| Palomarez Javier Alberto | Sell F | August 14, 2026 | August 18, 2026 | 4d | 31 | $298 | $9,225 | Form 4 ↗ | ||
| Palomarez Javier Alberto | Other A | August 14, 2026 | August 18, 2026 | 4d | 139 | — | — | Form 4 ↗ | ||
| Csiszar Ernst N | Sell F | August 14, 2026 | August 18, 2026 | 4d | 34 | $298 | $10K | Form 4 ↗ | ||
| Csiszar Ernst N | Other A | August 14, 2026 | August 18, 2026 | 4d | 152 | — | — | Form 4 ↗ | ||
| Campbell C Robert | Other A | August 14, 2026 | August 18, 2026 | 4d | 139 | — | — | Form 4 ↗ | ||
| Spiro Alex | Other A | August 14, 2026 | August 18, 2026 | 4d | 139 | — | — | Form 4 ↗ | ||
| Dwyer Robert J | Sell F | August 14, 2026 | August 18, 2026 | 4d | 31 | $298 | $9,225 | Form 4 ↗ | ||
| Dwyer Robert J | Other A | August 14, 2026 | August 18, 2026 | 4d | 139 | — | — | Form 4 ↗ | ||
| JOHNSON JULIA L | Other A | August 14, 2026 | August 18, 2026 | 4d | 139 | — | — | Form 4 ↗ | ||
| Parker Ava L | Sell F | August 14, 2026 | August 18, 2026 | 4d | 20 | $298 | $5,952 | Form 4 ↗ | ||
| Parker Ava L | Other A | August 14, 2026 | August 18, 2026 | 4d | 177 | — | — | Form 4 ↗ | ||
| MAS JOSE RAMON | Other J | August 11, 2026 | August 13, 2026 | 2d | 340,794 | — | — | derivative | Form 4 ↗ | |
| MAS JOSE RAMON | Other J | August 11, 2026 | August 13, 2026 | 2d | 340,794 | — | — | derivative | Form 4 ↗ | |
| MAS JORGE | Other J | August 11, 2026 | August 13, 2026 | 2d | 1,099,335 | — | — | indirectderivative | Form 4 ↗ | |
| MAS JORGE | Other J | August 11, 2026 | August 13, 2026 | 2d | 1,099,335 | — | — | indirectderivative | Form 4 ↗ | |
| Csiszar Ernst N | Sell S | June 3, 2026 | June 5, 2026 | 2d | 6,500 | $371 | $2.4M | Form 4 ↗ | ||
| Csiszar Ernst N | Sell F | May 15, 2026 | May 19, 2026 | 4d | 23 | $435 | $10,000 | Form 4 ↗ | ||
| Csiszar Ernst N | Other A | May 15, 2026 | May 19, 2026 | 4d | 104 | — | — | Form 4 ↗ | ||
| Dwyer Robert J | Sell F | May 15, 2026 | May 19, 2026 | 4d | 21 | $435 | $9,130 | Form 4 ↗ | ||
| Dwyer Robert J | Other A | May 15, 2026 | May 19, 2026 | 4d | 95 | — | — | Form 4 ↗ | ||
| Parker Ava L | Sell F | May 15, 2026 | May 19, 2026 | 4d | 14 | $435 | $6,087 | Form 4 ↗ | ||
| Parker Ava L | Other A | May 15, 2026 | May 19, 2026 | 4d | 121 | — | — | Form 4 ↗ | ||
| Campbell C Robert | Other A | May 15, 2026 | May 19, 2026 | 4d | 95 | — | — | Form 4 ↗ | ||
| Palomarez Javier Alberto | Sell F | May 15, 2026 | May 19, 2026 | 4d | 21 | $435 | $9,130 | Form 4 ↗ | ||
| Palomarez Javier Alberto | Other A | May 15, 2026 | May 19, 2026 | 4d | 95 | — | — | Form 4 ↗ | ||
| JOHNSON JULIA L | Other A | May 15, 2026 | May 19, 2026 | 4d | 95 | — | — | Form 4 ↗ | ||
| Campbell C Robert | Sell S | May 4, 2026 | May 6, 2026 | 2d | 3,000 | $417 | $1.3M | Form 4 ↗ | ||
| Love Timothy Michael | Other A | March 17, 2026 | April 17, 2026 | 31d | 492 | — | — | late | Form 4 ↗ | |
| Palomarez Javier Alberto | Sell S | March 25, 2026 | March 27, 2026 | 2d | 950 | $325 | $309K | Form 4 ↗ | ||
| DiMarco Paul | Other A | March 18, 2026 | March 20, 2026 | 2d | 9,074 | — | — | Form 4 ↗ | ||
| Apple Robert E | Other A | March 18, 2026 | March 20, 2026 | 2d | 11,548 | — | — | Form 4 ↗ | ||
| de Cardenas Alberto | Other A | March 18, 2026 | March 20, 2026 | 2d | 6,269 | — | — | Form 4 ↗ | ||
| MAS JORGE | Other A | March 18, 2026 | March 20, 2026 | 2d | 15,838 | — | — | Form 4 ↗ | ||
| MAS JOSE RAMON | Other A | March 18, 2026 | March 20, 2026 | 2d | 26,397 | — | — | Form 4 ↗ | ||
| MAS JORGE | Sell F | March 10, 2026 | March 12, 2026 | 2d | 15,958 | $298 | $4.8M | Form 4 ↗ | ||
| MAS JOSE RAMON | Sell F | March 10, 2026 | March 12, 2026 | 2d | 28,184 | $298 | $8.4M | Form 4 ↗ | ||
| Apple Robert E | Sell F | March 10, 2026 | March 12, 2026 | 2d | 12,206 | $298 | $3.6M | Form 4 ↗ | ||
| de Cardenas Alberto | Sell F | March 10, 2026 | March 12, 2026 | 2d | 4,838 | $298 | $1.4M | Form 4 ↗ | ||
| Csiszar Ernst N | Sell S | March 3, 2026 | March 5, 2026 | 2d | 6,500 | $300 | $2.0M | Form 4 ↗ | ||
| Palomarez Javier Alberto | Sell F | February 13, 2026 | February 18, 2026 | 5d | 34 | $270 | $9,164 | late | Form 4 ↗ | |
| Palomarez Javier Alberto | Other A | February 13, 2026 | February 18, 2026 | 5d | 154 | — | — | late | Form 4 ↗ | |
| JOHNSON JULIA L | Other A | February 13, 2026 | February 18, 2026 | 5d | 154 | — | — | late | Form 4 ↗ | |
| Dwyer Robert J | Sell F | February 13, 2026 | February 18, 2026 | 5d | 34 | $270 | $9,164 | late | Form 4 ↗ | |
| Dwyer Robert J | Other A | February 13, 2026 | February 18, 2026 | 5d | 154 | — | — | late | Form 4 ↗ | |
| Csiszar Ernst N | Sell F | February 13, 2026 | February 18, 2026 | 5d | 37 | $270 | $9,973 | late | Form 4 ↗ | |
| Csiszar Ernst N | Other A | February 13, 2026 | February 18, 2026 | 5d | 168 | — | — | late | Form 4 ↗ | |
| Campbell C Robert | Other A | February 13, 2026 | February 18, 2026 | 5d | 154 | — | — | late | Form 4 ↗ | |
| Parker Ava L | Sell F | February 13, 2026 | February 18, 2026 | 5d | 22 | $270 | $5,930 | late | Form 4 ↗ | |
| Parker Ava L | Other A | February 13, 2026 | February 18, 2026 | 5d | 195 | — | — | late | Form 4 ↗ | |
| Dwyer Robert J | Sell F | November 14, 2025 | November 18, 2025 | 4d | 48 | $192 | $9,227 | Form 4 ↗ | ||
| Dwyer Robert J | Other A | November 14, 2025 | November 18, 2025 | 4d | 215 | — | — | Form 4 ↗ | ||
| JOHNSON JULIA L | Other A | November 14, 2025 | November 18, 2025 | 4d | 215 | — | — | Form 4 ↗ | ||
| Palomarez Javier Alberto | Sell F | November 14, 2025 | November 18, 2025 | 4d | 48 | $192 | $9,227 | Form 4 ↗ | ||
| Palomarez Javier Alberto | Other A | November 14, 2025 | November 18, 2025 | 4d | 215 | — | — | Form 4 ↗ | ||
| Campbell C Robert | Other A | November 14, 2025 | November 18, 2025 | 4d | 215 | — | — | Form 4 ↗ | ||
| Parker Ava L | Sell F | November 14, 2025 | November 18, 2025 | 4d | 31 | $192 | $5,959 | Form 4 ↗ | ||
| Parker Ava L | Other A | November 14, 2025 | November 18, 2025 | 4d | 274 | — | — | Form 4 ↗ | ||
| Csiszar Ernst N | Sell F | November 14, 2025 | November 18, 2025 | 4d | 52 | $192 | $9,995 | Form 4 ↗ | ||
| Csiszar Ernst N | Other A | November 14, 2025 | November 18, 2025 | 4d | 235 | — | — | Form 4 ↗ | ||
| Love Timothy Michael | Sell S | November 3, 2025 | November 5, 2025 | 2d | 1,929 | $206 | $398K | Form 4 ↗ | ||
| Love Timothy Michael | Sell F | October 10, 2025 | October 15, 2025 | 5d | 621 | $210 | $130K | late | Form 4 ↗ | |
| DiMarco Paul | Sell F | October 10, 2025 | October 15, 2025 | 5d | 2,925 | $210 | $615K | late | Form 4 ↗ | |
| Campbell C Robert | Sell S | September 29, 2025 | October 1, 2025 | 2d | 2,000 | $210 | $421K | Form 4 ↗ |
Congressional trades
| Filer | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| Thomas H. Kean, Jr. | Buy | August 21, 2026 | September 12, 2026 | 22d | — | — | $1,001–$15K | House PTR ↗ | ||
| Markwayne Mullin | Sell | February 4, 2026 | March 2, 2026 | 26d | — | — | $15K–$50K | joint | Senate PTR ↗ | |
| Markwayne Mullin | Sell | December 18, 2025 | January 13, 2026 | 26d | — | — | $15K–$50K | spouse | Senate PTR ↗ | |
| Markwayne Mullin | Sell | December 18, 2025 | January 13, 2026 | 26d | — | — | $15K–$50K | Senate PTR ↗ | ||
| Lisa C. McClain | Sell | October 30, 2025 | November 21, 2025 | 22d | — | — | $1,001–$15K | spouse | House PTR ↗ | |
| Lisa C. McClain | Buy | October 30, 2025 | November 21, 2025 | 22d | — | — | $1,001–$15K | spouse | House PTR ↗ | |
| Lisa C. McClain | Sell | October 31, 2025 | November 21, 2025 | 21d | — | — | $1,001–$15K | spouse | House PTR ↗ |
Related stocks
Tickers traded by the same people who traded MTZ, by number of filers in common. It shows overlap in public filings and nothing else.
- GOOGL Alphabet Inc. - Class A Common Stock 3 filers in common
- AMZN Amazon.com, Inc. - Common Stock 3 filers in common
- MSFT Microsoft Corporation - Common Stock 3 filers in common
- DELL Dell Technologies Inc. Class C Common Stock 2 filers in common
- META Meta Platforms, Inc. - Class A Common Stock 2 filers in common
- INTU Intuit Inc. - Common Stock 2 filers in common
- NVDA NVIDIA Corporation - Common Stock 2 filers in common
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Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- How to read a congressional trade report Owner tells you whose asset it was: the member, the spouse, a dependent child, or held jointly.
- Why congressional trade amounts are ranges There are ten ranges; the lowest is $1,001–$15,000 and the highest is over $50,000,000.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| House Clerk, periodic transaction reports | 2 | 4 | November 21, 2025 | September 12, 2026 | House Clerk search |
| Senate eFD, periodic transaction reports | 2 | 3 | January 13, 2026 | March 2, 2026 | Senate eFD search |
| SEC EDGAR, Form 4 | 46 | 64 | October 1, 2025 | August 18, 2026 | Form 4 list on EDGAR |
Site built October 22, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Insider rows are Form 4 filings for this issuer from SEC EDGAR; congressional rows are periodic transaction reports parsed from the House Clerk and the Senate eFD. Values use the reported price for Form 4 and the disclosed range for Congress. See methodology and corrections.
Not investment advice. Disclosures are shown as filed and may lag the trade or be amended. No recommendation is made or implied.