Ernst N. Csiszar

Companies

• MasTecBoard member Oct 19, 2005 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• MMasTec MTZ10,934 shares²$2.0M at $180.50Aug 14, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Aug 14, 2026Shares withheld for tax 34 shares at $297.59 of MasTec²
• Aug 14, 2026Granted 152 shares of MasTec²
• Jun 3, 2026Sold 6,500 shares at $371.17 of MasTec³
• May 15, 2026Shares withheld for tax 23 shares at $434.77 of MasTec⁴
• May 15, 2026Granted 104 shares of MasTec⁴
• Mar 3, 2026Sold 6,500 shares at $300.40 of MasTec⁵
• Feb 13, 2026Shares withheld for tax 37 shares at $269.53 of MasTec⁶
• Feb 13, 2026Granted 168 shares of MasTec⁶
• Nov 14, 2025Shares withheld for tax 52 shares at $192.22 of MasTec⁷
• Nov 14, 2025Granted 235 shares of MasTec⁷
• Aug 15, 2025Shares withheld for tax 56 shares at $178.00 of MasTec⁸
• Aug 15, 2025Granted 254 shares of MasTec⁸
• May 15, 2025Shares withheld for tax 64 shares at $157.32 of MasTec⁹
• May 15, 2025Granted 287 shares of MasTec⁹
• Mar 24, 2025Sold 2,517 shares at $131.63 of MasTec¹⁰
• Feb 14, 2025Shares withheld for tax 74 shares at $135.78 of MasTec¹¹
• Feb 14, 2025Granted 332 shares of MasTec¹¹
• Nov 15, 2024Shares withheld for tax 74 shares at $135.32 of MasTec¹²
• Nov 15, 2024Granted 333 shares of MasTec¹²
• Aug 22, 2024Sold 4,853 shares at $110.96 of MasTec¹³
• Aug 15, 2024Shares withheld for tax 90 shares at $110.78 of MasTec¹⁴
• Aug 15, 2024Granted 407 shares of MasTec¹⁴
• May 15, 2024Shares withheld for tax 98 shares at $106.99 of MasTec¹⁵
• May 15, 2024Granted 443 shares of MasTec¹⁵
• Feb 15, 2024Shares withheld for tax 143 shares at $72.98 of MasTec¹⁶

Trade performance

Returns are price-only (no dividends), measured from the trade date.