Csiszar Ernst N
SEC insider (Form 3/4/5 filer). CIK 0001341639. Director at MASTEC INC (MTZ). 19 reported Form 4/5 transactions since Sep 2024; latest on Aug 14, 2026. Located in COLUMBIA, SC.
Companies Csiszar Ernst N has filed insider reports for
- MASTEC INC (MTZ): Director
Csiszar Ernst N
CIK: 0001341639
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)3 (15.8%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)8 (42.1%)
Compensation grants
Other (G, F, J, C, D, …)8 (42.1%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
MTZ
MASTEC INC
Director
Discretionary Trading P&L
Holdings
Transaction History (19 total)
- Aug 14, 2026MTZ
MASTEC INC
Tax PaymentDirect34 shares at avg. $297.59$10K - Aug 14, 2026MTZ
MASTEC INC
AwardDirect152 shares- - Jun 3, 2026MTZ
MASTEC INC
SaleDirect6.5K shares at avg. $371.17$2.4M - May 15, 2026MTZ
MASTEC INC
Tax PaymentDirect23 shares at avg. $434.77$10K - May 15, 2026MTZ
MASTEC INC
AwardDirect104 shares- - Mar 3, 2026MTZ
MASTEC INC
SaleDirect6.5K shares at avg. $300.40$2.0M - Feb 13, 2026MTZ
MASTEC INC
AwardDirect168 shares- - Feb 13, 2026MTZ
MASTEC INC
Tax PaymentDirect37 shares at avg. $269.53$10K - Nov 14, 2025MTZ
MASTEC INC
Tax PaymentDirect52 shares at avg. $192.22$10K - Nov 14, 2025MTZ
MASTEC INC
AwardDirect235 shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Aug 14, 2026 | MTZ MASTEC INC | Tax Payment | 34 | $297.59 | $10,118 | Direct |
| Aug 14, 2026 | MTZ MASTEC INC | Award | 152 | - | $0 | Direct |
| Jun 3, 2026 | MTZ MASTEC INC | Sale | 6,500 | $371.17 | $2,412,605 | Direct |
| May 15, 2026 | MTZ MASTEC INC | Tax Payment | 23 | $434.77 | $10,000 | Direct |
| May 15, 2026 | MTZ MASTEC INC | Award | 104 | - | $0 | Direct |
| Mar 3, 2026 | MTZ MASTEC INC | Sale | 6,500 | $300.40 | $1,952,600 | Direct |
| Feb 13, 2026 | MTZ MASTEC INC | Award | 168 | - | $0 | Direct |
| Feb 13, 2026 | MTZ MASTEC INC | Tax Payment | 37 | $269.53 | $9,973 | Direct |
| Nov 14, 2025 | MTZ MASTEC INC | Tax Payment | 52 | $192.22 | $9,995 | Direct |
| Nov 14, 2025 | MTZ MASTEC INC | Award | 235 | - | - | Direct |
1-10 of 19 transactions