Mastec's top three insider shareholders as of March 23, 2026 are Jorge Mas (Director, 4.56Mn shares), Jose Ramon Mas (Ceo, 3.26Mn shares), Robert E Apple (Coo, 184.25K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Jorge Mas | 4,556,686 | 0 | 20 Mar, 2026 | |
| Jose Ramon Mas | Ceo | 3,254,461 | 0 | 20 Mar, 2026 |
| Robert E Apple | Coo | 183,591 | 0 | 20 Mar, 2026 |
| George Pita | Cfo | 156,475 | 0 | 21 Mar, 2023 |
| Cardenas Alberto De | Evp, General Counsel | 102,780 | 0 | 20 Mar, 2026 |
| Paul Dimarco | Cfo | 66,627 | 0 | 20 Mar, 2026 |
| Robert E Apple | Coo | 0 | 11,946 | 06 Nov, 2023 |
| Javier Alberto Palomarez | 11,542 | 0 | 18 Feb, 2026 | |
| Paul Dimarco | Cfo | 0 | 9,895 | 06 Nov, 2023 |
| Cardenas Alberto De | Evp, General Counsel | 0 | 7,966 | 06 Nov, 2023 |
| Ava L Parker | 5,285 | 0 | 18 Feb, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 18 Mar, 2026 | Cardenas Alberto De | Common Stock | A | 6,269 | $0.00 | 102,780 | D | A |
| 18 Mar, 2026 | Jose Ramon Mas | Common Stock | A | 26,397 | $0.00 | 3,254,461 | D | A |
| 18 Mar, 2026 | Paul Dimarco | Common Stock | A | 9,074 | $0.00 | 66,627 | D | A |
| 18 Mar, 2026 | Jorge Mas | Common Stock | A | 15,838 | $0.00 | 4,556,686 | D | A |
| 18 Mar, 2026 | Robert E Apple | Common Stock | A | 11,548 | $0.00 | 183,591 | D | A |
| 10 Mar, 2026 | Cardenas Alberto De | Common Stock | D | 4,838 | $297.81 | 96,511 | D | F |
| 10 Mar, 2026 | Jorge Mas | Common Stock | D | 15,958 | $297.81 | 4,540,848 | D | F |
| 10 Mar, 2026 | Robert E Apple | Common Stock | D | 12,206 | $297.81 | 172,043 | D | F |
| 10 Mar, 2026 | Jose Ramon Mas | Common Stock | D | 28,184 | $297.81 | 3,228,064 | D | F |
| 13 Feb, 2026 | Javier Alberto Palomarez | Common Stock | A | 154 | $0.00 | 11,576 | D | A |
| 13 Feb, 2026 | Ava L Parker | Common Stock | A | 195 | $0.00 | 5,307 | D | A |
| 13 Feb, 2026 | Javier Alberto Palomarez | Common Stock | D | 34 | $269.53 | 11,542 | D | F |
| 13 Feb, 2026 | Ava L Parker | Common Stock | D | 22 | $269.53 | 5,285 | D | F |
| 14 Nov, 2025 | Javier Alberto Palomarez | Common Stock | A | 215 | $0.00 | 11,470 | D | A |
| 14 Nov, 2025 | Ava L Parker | Common Stock | A | 274 | $0.00 | 5,143 | D | A |
| 14 Nov, 2025 | Ava L Parker | Common Stock | D | 31 | $192.22 | 5,112 | D | F |
| 14 Nov, 2025 | Javier Alberto Palomarez | Common Stock | D | 48 | $192.22 | 11,422 | D | F |
| 10 Oct, 2025 | Paul Dimarco | Common Stock | D | 2,925 | $210.09 | 57,553 | D | F |
| 18 Sep, 2025 | Robert E Apple | Common Stock | D | 9,900 | $200.43 | 184,349 | D | S |
| 18 Sep, 2025 | Robert E Apple | Common Stock | D | 100 | $201.06 | 184,249 | D | S |