As of August 04, 2026, Mastec's top three insider holders are Jorge Mas (Director, 4.56Mn shares), Jose Ramon Mas (Ceo, 3.25Mn shares), Robert E Apple (Coo, 183.59K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Jorge Mas | Director | 4,556,686 | 0 | 4,556,686 | 53.5% | 20 Mar, 2026 |
| 2 | Jose Ramon Mas | Ceo | 3,254,461 | 0 | 3,254,461 | 38.2% | 20 Mar, 2026 |
| 3 | George Pita | Cfo | 293,719 | 0 | 293,719 | 3.4% | 21 Mar, 2023 |
| 4 | Robert E Apple | Coo | 183,591 | 0 | 183,591 | 2.2% | 20 Mar, 2026 |
| 5 | Julia L Johnson | Director | 73,240 | 0 | 73,240 | 0.9% | 18 Feb, 2026 |
| 6 | Paul Dimarco | Cfo | 66,627 | 0 | 66,627 | 0.8% | 20 Mar, 2026 |
| 7 | C Robert Campbell | Evp Cfo | 33,646 | 0 | 33,646 | 0.4% | 18 Feb, 2026 |
| 8 | Robert J Dwyer | Director | 20,778 | 0 | 20,778 | 0.2% | 18 Feb, 2026 |
| 9 | Ernst N Csiszar | Director | 17,235 | 0 | 17,235 | 0.2% | 05 Mar, 2026 |
| 10 | Javier Alberto Palomarez | Director | 10,592 | 0 | 10,592 | 0.1% | 27 Mar, 2026 |
| 11 | Timothy Michael Love | Cao | 10,292 | 0 | 10,292 | 0.1% | 17 Apr, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 17 Mar, 2026 | Timothy Michael Love | Cao | Acquired A | 492 | $0.00 | $0 | 10,292 | Direct |
| 25 Mar, 2026 | Javier Alberto Palomarez | Director | Disposed S | 950 | $325.43 | $309.16K | 10,592 | Direct |
| 25 Mar, 2026 | Javier Alberto Palomarez | Director | Disposed S | 950 | $325.43 | $309.16K | 10,592 | Direct |
| 25 Mar, 2026 | Javier Alberto Palomarez | Director | Disposed S | 950 | $325.43 | $309.16K | 10,592 | Direct |
| 25 Mar, 2026 | Javier Alberto Palomarez | Director | Disposed S | 950 | $325.43 | $309.16K | 10,592 | Direct |
| 18 Mar, 2026 | Jose Ramon Mas | Ceo | Acquired A | 26,397 | $0.00 | $0 | 3,254,461 | Direct |
| 18 Mar, 2026 | Robert E Apple | Coo | Acquired A | 11,548 | $0.00 | $0 | 183,591 | Direct |
| 18 Mar, 2026 | Jorge Mas | Director | Acquired A | 15,838 | $0.00 | $0 | 4,556,686 | Direct |
| 18 Mar, 2026 | Paul Dimarco | Cfo | Acquired A | 9,074 | $0.00 | $0 | 66,627 | Direct |
| 10 Mar, 2026 | Robert E Apple | Coo | Disposed F | 12,206 | $297.81 | $3.64Mn | 172,043 | Direct |
| 10 Mar, 2026 | Jorge Mas | Director | Disposed F | 15,958 | $297.81 | $4.75Mn | 4,540,848 | Direct |
| 10 Mar, 2026 | Jose Ramon Mas | Ceo | Disposed F | 28,184 | $297.81 | $8.39Mn | 3,228,064 | Direct |
| 03 Mar, 2026 | Ernst N Csiszar | Director | Disposed S | 6,500 | $300.40 | $1.95Mn | 17,235 | Direct |
| 13 Feb, 2026 | Javier Alberto Palomarez | Director | Acquired A | 154 | $0.00 | $0 | 11,576 | Direct |
| 13 Feb, 2026 | Julia L Johnson | Director | Acquired A | 154 | $0.00 | $0 | 73,240 | Direct |
| 13 Feb, 2026 | Javier Alberto Palomarez | Director | Acquired A | 154 | $0.00 | $0 | 11,576 | Direct |
| 13 Feb, 2026 | Ernst N Csiszar | Director | Acquired A | 168 | $0.00 | $0 | 23,772 | Direct |
| 13 Feb, 2026 | Javier Alberto Palomarez | Director | Acquired A | 154 | $0.00 | $0 | 11,576 | Direct |
| 13 Feb, 2026 | Javier Alberto Palomarez | Director | Acquired A | 154 | $0.00 | $0 | 11,576 | Direct |
| 13 Feb, 2026 | C Robert Campbell | Director | Acquired A | 154 | $0.00 | $0 | 33,646 | Direct |