Ernst N Csiszar insider trades: Mastec (MTZ) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Ernst reports to the SEC
Open-market buys and sales
9 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Mar 3, 2026 | MTZ | ↓ Sell | 6,500 | $300.40 | $2.0M | Direct | Mar 5, 2026 (2d) |
| Mar 24, 2025 | MTZ | ↓ Sell | 2,517 | $131.63 | $331K | Direct | Mar 26, 2025 (2d) |
| Aug 22, 2024 | MTZ | ↓ Sell | 4,853 | $110.96 | $538K | Direct | Aug 26, 2024 (4d) |
| Mar 29, 2021 | MTZ | ↓ Sell | 1,564 | $91.01 | $142K | Direct | Mar 31, 2021 (2d) |
| Mar 23, 2021 | MTZ | ↓ Sell | 1,700 | $89.92 | $153K | Direct | Mar 25, 2021 (2d) |
| Sep 10, 2019 | MTZ | ↓ Sell | 3,000 | $64.53 | $194K | Direct | Sep 12, 2019 (2d) |
| Nov 27, 2012 | MTZ | ↓ Sell | 10,000 | $22.84 | $228K | Direct | Nov 29, 2012 (2d) |
| Sep 15, 2011 | MTZ | ↓ Sell | 7,500 | $20.42 | $153K | Direct | Sep 16, 2011 (1d) |
| Mar 28, 2011 | MTZ | ↓ Sell | 31,000 | $20.36 | $631K | Direct | Mar 30, 2011 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other MTZ insiders
Open-market trades in the last 12 months
About Ernst N Csiszar's insider trades
Ernst N Csiszar is a director at Mastec (MTZ). Since Mar 28, 2011, Ernst has reported no open-market purchases and 9 sales worth $4.3M on SEC Form 4. In the last 12 months: 1 sale ($2.0M).
Their filings also include grants and awards (75 filings), shares withheld for taxes (65 filings), shares returned to the company (2 filings), gifts (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every MTZ insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.