Mastec Inc. (MTZ) Insider Trading
Directors, officers and holders of more than 10% of MTZ report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 149 transactions on file: 0 with code P, 4 with code S and 46 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 14, 2026 | Palomarez Javier Alberto | Director | A Award | 139 | Not measured | Not measured |
| Aug 14, 2026 | Campbell C Robert | Director | A Award | 139 | Not measured | Not measured |
| Aug 14, 2026 | Miranda Manuel Benito | Director | A Award | 152 | Not measured | Not measured |
| Aug 14, 2026 | Dwyer Robert J | Director | F Tax Payment | 31 | $297.59 | $9,225 |
| Aug 14, 2026 | Dwyer Robert J | Director | A Award | 139 | Not measured | Not measured |
| Aug 14, 2026 | Palomarez Javier Alberto | Director | F Tax Payment | 31 | $297.59 | $9,225 |
| Aug 14, 2026 | Csiszar Ernst N | Director | F Tax Payment | 34 | $297.59 | $10,118 |
| Aug 14, 2026 | JOHNSON JULIA L | Director | A Award | 139 | Not measured | Not measured |
| Aug 14, 2026 | Parker Ava L | Director | A Award | 177 | Not measured | Not measured |
| Aug 14, 2026 | Spiro Alex | Director | A Award | 139 | Not measured | Not measured |
| Aug 14, 2026 | Csiszar Ernst N | Director | A Award | 152 | Not measured | Not measured |
| Aug 14, 2026 | Parker Ava L | Director | F Tax Payment | 20 | $297.59 | $5,952 |
| Aug 11, 2026 | MAS JOSE RAMON | CEO | J Other | 340,794 | Not measured | Not measured |
| Aug 11, 2026 | MAS JORGE | Director | J Other | 1,099,335 | Not measured | Not measured |
| Aug 11, 2026 | MAS JOSE RAMON | CEO | J Other | 340,794 | Not measured | Not measured |
| Aug 11, 2026 | MAS JORGE | Director | J Other | 1,099,335 | Not measured | Not measured |
| Jun 3, 2026 | Csiszar Ernst N | Director | S Sale | 6,500 | $371.17 | $2,412,605 |
| May 15, 2026 | Parker Ava L | Director | F Tax Payment | 14 | $434.77 | $6,087 |
| May 15, 2026 | Dwyer Robert J | Director | A Award | 95 | Not measured | Not measured |
| May 15, 2026 | Dwyer Robert J | Director | F Tax Payment | 21 | $434.77 | $9,130 |
| May 15, 2026 | Parker Ava L | Director | A Award | 121 | Not measured | Not measured |
| May 15, 2026 | JOHNSON JULIA L | Director | A Award | 95 | Not measured | Not measured |
| May 15, 2026 | Palomarez Javier Alberto | Director | A Award | 95 | Not measured | Not measured |
| May 15, 2026 | Palomarez Javier Alberto | Director | F Tax Payment | 21 | $434.77 | $9,130 |
| May 15, 2026 | Csiszar Ernst N | Director | A Award | 104 | Not measured | Not measured |
| May 15, 2026 | Csiszar Ernst N | Director | F Tax Payment | 23 | $434.77 | $10,000 |
| May 15, 2026 | Campbell C Robert | Director | A Award | 95 | Not measured | Not measured |
| May 4, 2026 | Campbell C Robert | Director | S Sale | 3,000 | $417.00 | $1,251,000 |
| Mar 25, 2026 | Palomarez Javier Alberto | Director | S Sale | 950 | $325.43 | $309,159 |
| Mar 18, 2026 | de Cardenas Alberto | EVP, General Counsel | A Award | 6,269 | Not measured | Not measured |
| Mar 18, 2026 | MAS JORGE | Director | A Award | 15,838 | Not measured | Not measured |
| Mar 18, 2026 | MAS JOSE RAMON | CEO | A Award | 26,397 | Not measured | Not measured |
| Mar 18, 2026 | DiMarco Paul | CFO | A Award | 9,074 | Not measured | Not measured |
| Mar 18, 2026 | Apple Robert E | COO | A Award | 11,548 | Not measured | Not measured |
| Mar 17, 2026 | Love Timothy Michael | CAO | A Award | 492 | Not measured | Not measured |
| Mar 10, 2026 | MAS JORGE | Director | F Tax Payment | 15,958 | $297.81 | $4,752,452 |
| Mar 10, 2026 | MAS JOSE RAMON | CEO | F Tax Payment | 28,184 | $297.81 | $8,393,477 |
| Mar 10, 2026 | Apple Robert E | COO | F Tax Payment | 12,206 | $297.81 | $3,635,069 |
| Mar 10, 2026 | de Cardenas Alberto | EVP, General Counsel | F Tax Payment | 4,838 | $297.81 | $1,440,805 |
| Mar 3, 2026 | Csiszar Ernst N | Director | S Sale | 6,500 | $300.40 | $1,952,600 |
| Feb 13, 2026 | Palomarez Javier Alberto | Director | A Award | 154 | Not measured | Not measured |
| Feb 13, 2026 | Csiszar Ernst N | Director | F Tax Payment | 37 | $269.53 | $9,973 |
| Feb 13, 2026 | Csiszar Ernst N | Director | A Award | 168 | Not measured | Not measured |
| Feb 13, 2026 | Palomarez Javier Alberto | Director | F Tax Payment | 34 | $269.53 | $9,164 |
| Feb 13, 2026 | Dwyer Robert J | Director | A Award | 154 | Not measured | Not measured |
| Feb 13, 2026 | Dwyer Robert J | Director | F Tax Payment | 34 | $269.53 | $9,164 |
| Feb 13, 2026 | Parker Ava L | Director | F Tax Payment | 22 | $269.53 | $5,930 |
| Feb 13, 2026 | Campbell C Robert | Director | A Award | 154 | Not measured | Not measured |
| Feb 13, 2026 | Parker Ava L | Director | A Award | 195 | Not measured | Not measured |
| Feb 13, 2026 | JOHNSON JULIA L | Director | A Award | 154 | Not measured | Not measured |
The full Form 4 history is on the MTZ company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.