Ernst N. Csiszar

Sits on 1 board. Last updated September 28, 2026

Time on boards

Boards served
1
Current seats
1
Board service
4 years
Director since
2023

4 years of board service in total across 1 board, counting each seat separately. Longest: MasTec Inc., 3 years.

MasTec Inc. Director
3 years ยท Since 2023

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Date Company Transaction Shares Price Value
Jun 3, 2026 MasTec Inc. Open-market sale โˆ’6,500 $371.17 $2,412,605
May 15, 2026 MasTec Inc. Grant or award +104 โ€” โ€”
May 15, 2026 MasTec Inc. Shares withheld for tax โˆ’23 $434.77 $10,000
Mar 3, 2026 MasTec Inc. Open-market sale โˆ’6,500 $300.40 $1,952,600
Feb 13, 2026 MasTec Inc. Grant or award +168 โ€” โ€”
Feb 13, 2026 MasTec Inc. Shares withheld for tax โˆ’37 $269.53 $9,973
Nov 14, 2025 MasTec Inc. Grant or award +235 โ€” โ€”
Nov 14, 2025 MasTec Inc. Shares withheld for tax โˆ’52 $192.22 $9,995
Aug 15, 2025 MasTec Inc. Grant or award +254 โ€” โ€”
Aug 15, 2025 MasTec Inc. Shares withheld for tax โˆ’56 $178.00 $9,968
May 15, 2025 MasTec Inc. Grant or award +287 โ€” โ€”
May 15, 2025 MasTec Inc. Shares withheld for tax โˆ’64 $157.32 $10,068
Mar 24, 2025 MasTec Inc. Open-market sale โˆ’2,517 $131.63 $331,313
Feb 14, 2025 MasTec Inc. Grant or award +332 โ€” โ€”
Feb 14, 2025 MasTec Inc. Shares withheld for tax โˆ’74 $135.78 $10,048

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