Csiszar Ernst N (CIK 1341639) reported 15 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-06-05). Recent activity: Sell MTZ (6,500 shares), Buy MTZ (104 shares), Sell MTZ (23 shares), Sell MTZ (6,500 shares), Buy MTZ (168 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-05 | MASTEC INC (MTZ) | Director | Sell | 6,500 | $2.4M |
| 2026-05-19 | MASTEC INC (MTZ) | Director | Buy | 104 | $0 |
| 2026-05-19 | MASTEC INC (MTZ) | Director | Sell | 23 | $10,000 |
| 2026-03-05 | MASTEC INC (MTZ) | Director | Sell | 6,500 | $2.0M |
| 2026-02-18 | MASTEC INC (MTZ) | Director | Buy | 168 | $0 |
| 2026-02-18 | MASTEC INC (MTZ) | Director | Sell | 37 | $9,973 |
| 2025-11-18 | MASTEC INC (MTZ) | Director | Buy | 235 | $0 |
| 2025-11-18 | MASTEC INC (MTZ) | Director | Sell | 52 | $9,995 |
| 2025-08-19 | MASTEC INC (MTZ) | Director | Buy | 254 | $0 |
| 2025-08-19 | MASTEC INC (MTZ) | Director | Sell | 56 | $9,968 |
| 2025-05-19 | MASTEC INC (MTZ) | Director | Buy | 287 | $0 |
| 2025-05-19 | MASTEC INC (MTZ) | Director | Sell | 64 | $10,068 |
| 2025-03-26 | MASTEC INC (MTZ) | Director | Sell | 2,517 | $331,313 |
| 2025-02-19 | MASTEC INC (MTZ) | Director | Buy | 332 | $0 |
| 2025-02-19 | MASTEC INC (MTZ) | Director | Sell | 74 | $10,048 |
Source: SEC Form 4 filings · as of 2026-06-05