Over the 90-day window ending December 12, 2025, Mastec's three dominant insider ownership positions are held by COO Robert E Apple (196.19K shares), EVP And General Counsel Cardenas Alberto De (109.32K shares), Director Julia L Johnson (73.09K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Jorge Mas | 4,556,806 | 20 Mar, 2025 | |
| Jose Ramon Mas | CEO | 3,256,248 | 26 Mar, 2025 |
| Robert E Apple | COO | 196,195 | 22 Sep, 2025 |
| George Pita | Cfo | 156,475 | 21 Mar, 2023 |
| Cardenas Alberto De | EVP And General Counsel | 109,315 | 07 Aug, 2025 |
| Julia L Johnson | 73,086 | 18 Nov, 2025 | |
| Paul Dimarco | Cfo | 67,448 | 15 Oct, 2025 |
| C Robert Campbell | 33,492 | 18 Nov, 2025 | |
| Ernst N Csiszar | 23,604 | 18 Nov, 2025 | |
| Robert J Dwyer | 20,658 | 18 Nov, 2025 | |
| Javier Alberto Palomarez | 11,422 | 18 Nov, 2025 | |
| Timothy Michael Love | Cao | 9,757 | 05 Nov, 2025 |
| Ava L Parker | 5,112 | 18 Nov, 2025 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 14 Nov, 2025 | Ernst N Csiszar | Common Stock | A | 235 | $0.00 | 23,656 | D | A |
| 14 Nov, 2025 | Julia L Johnson | Common Stock | A | 215 | $0.00 | 73,086 | D | A |
| 14 Nov, 2025 | C Robert Campbell | Common Stock | A | 215 | $0.00 | 33,492 | D | A |
| 14 Nov, 2025 | Robert J Dwyer | Common Stock | A | 215 | $0.00 | 20,706 | D | A |
| 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 | Ernst N Csiszar | Common Stock | D | 52 | $192.22 | 23,604 | D | F |
| 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 |
| 14 Nov, 2025 | Robert J Dwyer | Common Stock | D | 48 | $192.22 | 20,658 | D | F |
| 03 Nov, 2025 | Timothy Michael Love | Common Stock | D | 1,929 | $206.15 | 9,757 | D | S |
| 10 Oct, 2025 | Timothy Michael Love | Common Stock | D | 621 | $210.09 | 11,686 | D | F |
| 10 Oct, 2025 | Paul Dimarco | Common Stock | D | 2,925 | $210.09 | 57,553 | D | F |
| 29 Sep, 2025 | C Robert Campbell | Common Stock | D | 2,000 | $210.39 | 33,277 | D | S |
| 18 Sep, 2025 | Robert E Apple | Common Stock | D | 9,900 | $200.43 | 184,349 | D | S |
| 18 Sep, 2025 | Robert E Apple | - | - | 184,249 | D | |||
| 18 Sep, 2025 | Robert E Apple | Common Stock | D | 100 | $201.06 | 184,249 | D | S |
| 11 Sep, 2025 | C Robert Campbell | Common Stock | D | 3,000 | $190.39 | 35,277 | D | S |
| 15 Aug, 2025 | Robert J Dwyer | Common Stock | A | 232 | $0.00 | 20,543 | D | A |
| 15 Aug, 2025 | Javier Alberto Palomarez | Common Stock | A | 232 | $0.00 | 11,307 | D | A |