MasTec (MTZ) — insider trading
Industrials · NYSE
MasTec (MTZ) has 31 reported SEC Form 4 insider transactions in our data, including 3 open-market sales among the most recent 31 (latest 2026-08-14).
Recent Form 4 transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-08-14 | Parker Ava L | Director | Shares withheld for taxes / exercise cost | 20 | $297.59 | $6.0K | Form 4 |
| 2026-08-14 | Parker Ava L | Director | Grant / award / vesting | 177 | — | $0 | Form 4 |
| 2026-08-14 | JOHNSON JULIA L | Director | Grant / award / vesting | 139 | — | $0 | Form 4 |
| 2026-08-14 | Dwyer Robert J | Director | Shares withheld for taxes / exercise cost | 31 | $297.59 | $9.2K | Form 4 |
| 2026-08-14 | Dwyer Robert J | Director | Grant / award / vesting | 139 | — | $0 | Form 4 |
| 2026-08-14 | Spiro Alex | Director | Grant / award / vesting | 139 | — | $0 | Form 4 |
| 2026-08-14 | Campbell C Robert | Director | Grant / award / vesting | 139 | — | $0 | Form 4 |
| 2026-08-14 | Csiszar Ernst N | Director | Shares withheld for taxes / exercise cost | 34 | $297.59 | $10.1K | Form 4 |
| 2026-08-14 | Csiszar Ernst N | Director | Grant / award / vesting | 152 | — | $0 | Form 4 |
| 2026-08-14 | Palomarez Javier Alberto | Director | Shares withheld for taxes / exercise cost | 31 | $297.59 | $9.2K | Form 4 |
| 2026-08-14 | Palomarez Javier Alberto | Director | Grant / award / vesting | 139 | — | $0 | Form 4 |
| 2026-08-14 | Miranda Manuel Benito | Director | Grant / award / vesting | 152 | — | $0 | Form 4 |
| 2026-08-11 | MAS JORGE | Director | Other acquisition or disposition (derivative) | 1,099,335 | — | — | Form 4 |
| 2026-08-11 | MAS JORGE | Director | Other acquisition or disposition (derivative) | 1,099,335 | — | — | Form 4 |
| 2026-08-11 | MAS JOSE RAMON | Director, Officer (CEO) | Other acquisition or disposition (derivative) | 340,794 | — | — | Form 4 |
| 2026-08-11 | MAS JOSE RAMON | Director, Officer (CEO) | Other acquisition or disposition (derivative) | 340,794 | — | — | Form 4 |
| 2026-06-03 | Csiszar Ernst N | Director | Open-market sale | 6,500 | $371.17 | $2.41M | Form 4 |
| 2026-05-15 | JOHNSON JULIA L | Director | Grant / award / vesting | 95 | — | $0 | Form 4 |
| 2026-05-15 | Palomarez Javier Alberto | Director | Shares withheld for taxes / exercise cost | 21 | $434.77 | $9.1K | Form 4 |
| 2026-05-15 | Palomarez Javier Alberto | Director | Grant / award / vesting | 95 | — | $0 | Form 4 |
| 2026-05-15 | Campbell C Robert | Director | Grant / award / vesting | 95 | — | $0 | Form 4 |
| 2026-05-15 | Parker Ava L | Director | Shares withheld for taxes / exercise cost | 14 | $434.77 | $6.1K | Form 4 |
| 2026-05-15 | Parker Ava L | Director | Grant / award / vesting | 121 | — | $0 | Form 4 |
| 2026-05-15 | Dwyer Robert J | Director | Shares withheld for taxes / exercise cost | 21 | $434.77 | $9.1K | Form 4 |
| 2026-05-15 | Dwyer Robert J | Director | Grant / award / vesting | 95 | — | $0 | Form 4 |
| 2026-05-15 | Csiszar Ernst N | Director | Shares withheld for taxes / exercise cost | 23 | $434.77 | $10.0K | Form 4 |
| 2026-05-15 | Csiszar Ernst N | Director | Grant / award / vesting | 104 | — | $0 | Form 4 |
| 2026-05-04 | Campbell C Robert | Director | Open-market sale | 3,000 | $417.00 | $1.25M | Form 4 |
| 2026-03-25 | Palomarez Javier Alberto | Director | Open-market sale | 950 | $325.43 | $309.2K | Form 4 |
| 2026-03-18 | DiMarco Paul | Officer (CFO) | Grant / award / vesting | 9,074 | — | $0 | Form 4 |
| 2026-03-17 | Love Timothy Michael | Officer (CAO) | Grant / award / vesting | 492 | — | $0 | Form 4 |
Ask the chat about MTZ's insider activity →
Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: MasTec (MTZ).
Last updated 2026-08-14 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.