Ernst N Csiszar
Insider
First SEC filing: June 5, 2026 · Latest: June 5, 2026
Insider at
Insider transactions
0 buys (P)
2 sells (S)
Net: $-4,365,205
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 14, 2026 | MTZ | A | 152 | · | · | 10,968 Direct | +1.41% | Acquired | (price as of 2026-10-05) |
| Aug. 14, 2026 | MTZ | F | 34 | $297.59 | $10,118 | 10,934 Direct | -0.31% | Disposed | -27.5% (price as of 2026-10-05) |
| June 3, 2026 | MTZ | S | 6,500 | $371.17 | $2,412,605 | 10,816 Direct | -37.54% | Disposed | -41.8% (price as of 2026-10-05) |
| May 15, 2026 | MTZ | F | 23 | $434.77 | $10,000 | 17,316 Direct | -0.13% | Disposed | -50.3% (price as of 2026-10-05) |
| May 15, 2026 | MTZ | A | 104 | · | · | 17,339 Direct | +0.60% | Acquired | (price as of 2026-10-05) |
| March 3, 2026 | MTZ | S | 6,500 | $300.40 | $1,952,600 | 17,235 Direct | -27.39% | Disposed | -28.1% (price as of 2026-10-05) |
| Feb. 13, 2026 | MTZ | F | 37 | $269.53 | $9,973 | 23,735 Direct | -0.16% | Disposed | -19.9% (price as of 2026-10-05) |
| Feb. 13, 2026 | MTZ | A | 168 | · | · | 23,772 Direct | +0.71% | Acquired | (price as of 2026-10-05) |
| Nov. 14, 2025 | MTZ | F | 52 | $192.22 | $9,995 | 23,604 Direct | -0.22% | Disposed | 12.3% (price as of 2026-10-05) |
| Nov. 14, 2025 | MTZ | A | 235 | · | · | 23,656 Direct | +1.00% | Acquired | (price as of 2026-10-05) |
| Aug. 15, 2025 | MTZ | F | 56 | $178.00 | $9,968 | 23,421 Direct | -0.24% | Disposed | 21.3% (price as of 2026-10-05) |
| Aug. 15, 2025 | MTZ | A | 254 | · | · | 23,477 Direct | +1.09% | Acquired | (price as of 2026-10-05) |
| May 15, 2025 | MTZ | A | 287 | · | · | 23,287 Direct | +1.25% | Acquired | (price as of 2026-10-05) |
| May 15, 2025 | MTZ | F | 64 | $157.32 | $10,068 | 23,223 Direct | -0.27% | Disposed | 37.2% (price as of 2026-10-05) |
| March 24, 2025 | MTZ | S | 2,517 | $131.63 | $331,313 | 23,000 Direct | -9.86% | Disposed | 64.0% (price as of 2026-10-05) |
| Feb. 14, 2025 | MTZ | F | 74 | $135.78 | $10,048 | 25,517 Direct | -0.29% | Disposed | 59.0% (price as of 2026-10-05) |
| Feb. 14, 2025 | MTZ | A | 332 | · | · | 25,591 Direct | +1.31% | Acquired | (price as of 2026-10-05) |
| Nov. 15, 2024 | MTZ | F | 74 | $135.32 | $10,014 | 25,259 Direct | -0.29% | Disposed | 59.5% (price as of 2026-10-05) |
| Nov. 15, 2024 | MTZ | A | 333 | · | · | 25,333 Direct | +1.33% | Acquired | (price as of 2026-10-05) |
| Aug. 22, 2024 | MTZ | S | 4,853 | $110.96 | $538,489 | 25,000 Direct | -16.26% | Disposed | 94.6% (price as of 2026-10-05) |
| Aug. 15, 2024 | MTZ | F | 90 | $110.78 | $9,970 | 29,853 Direct | -0.30% | Disposed | 94.9% (price as of 2026-10-05) |
| Aug. 15, 2024 | MTZ | A | 407 | · | · | 29,943 Direct | +1.38% | Acquired | (price as of 2026-10-05) |
| May 15, 2024 | MTZ | F | 98 | $106.99 | $10,485 | 29,536 Direct | -0.33% | Disposed | 101.8% (price as of 2026-10-05) |
| May 15, 2024 | MTZ | A | 443 | · | · | 29,634 Direct | +1.52% | Acquired | (price as of 2026-10-05) |
| Feb. 15, 2024 | MTZ | F | 143 | $72.98 | $10,436 | 29,191 Direct | -0.49% | Disposed | 195.8% (price as of 2026-10-05) |
| Feb. 15, 2024 | MTZ | A | 649 | · | · | 29,334 Direct | +2.26% | Acquired | (price as of 2026-10-05) |
| Nov. 15, 2023 | MTZ | F | 194 | $53.68 | $10,414 | 28,685 Direct | -0.67% | Disposed | 302.2% (price as of 2026-10-05) |
| Nov. 15, 2023 | MTZ | A | 881 | · | · | 28,879 Direct | +3.15% | Acquired | (price as of 2026-10-05) |
| Aug. 15, 2023 | MTZ | F | 111 | $93.79 | $10,411 | 27,998 Direct | -0.39% | Disposed | 130.2% (price as of 2026-10-05) |
| Aug. 15, 2023 | MTZ | A | 504 | · | · | 28,109 Direct | +1.83% | Acquired | (price as of 2026-10-05) |
| May 15, 2023 | MTZ | F | 108 | $97.05 | $10,481 | 27,605 Direct | -0.39% | Disposed | 122.4% (price as of 2026-10-05) |
| May 15, 2023 | MTZ | A | 488 | · | · | 27,713 Direct | +1.79% | Acquired | (price as of 2026-10-05) |
| Feb. 15, 2023 | MTZ | F | 105 | $99.72 | $10,471 | 27,225 Direct | -0.38% | Disposed | 116.5% (price as of 2026-10-05) |
| Feb. 15, 2023 | MTZ | A | 475 | · | · | 27,330 Direct | +1.77% | Acquired | (price as of 2026-10-05) |
| Nov. 15, 2022 | MTZ | F | 114 | $92.09 | $10,498 | 26,855 Direct | -0.42% | Disposed | 134.4% (price as of 2026-10-05) |
| Nov. 15, 2022 | MTZ | A | 514 | · | · | 26,969 Direct | +1.94% | Acquired | (price as of 2026-10-05) |
| Aug. 15, 2022 | MTZ | F | 127 | $82.23 | $10,443 | 26,455 Direct | -0.48% | Disposed | 162.5% (price as of 2026-10-05) |
| Aug. 15, 2022 | MTZ | A | 576 | · | · | 26,582 Direct | +2.21% | Acquired | (price as of 2026-10-05) |
| May 13, 2022 | MTZ | F | 91 | $77.74 | $7,074 | 26,006 Direct | -0.35% | Disposed | 177.7% (price as of 2026-10-05) |
| May 13, 2022 | MTZ | A | 411 | · | · | 26,097 Direct | +1.60% | Acquired | (price as of 2026-10-05) |
| Feb. 15, 2022 | MTZ | F | 76 | $92.88 | $7,059 | 25,686 Direct | -0.30% | Disposed | 132.4% (price as of 2026-10-05) |
| Feb. 15, 2022 | MTZ | A | 344 | · | · | 25,762 Direct | +1.35% | Acquired | (price as of 2026-10-05) |
| Dec. 29, 2021 | MTZ | G | 324 | · | · | 25,418 Direct | -1.26% | Disposed | (price as of 2026-10-05) |
| Nov. 15, 2021 | MTZ | A | 341 | · | · | 25,818 Direct | +1.34% | Acquired | (price as of 2026-10-05) |
| Nov. 15, 2021 | MTZ | F | 76 | $93.74 | $7,124 | 25,742 Direct | -0.29% | Disposed | 130.3% (price as of 2026-10-05) |
| Aug. 13, 2021 | MTZ | F | 76 | $93.21 | $7,084 | 25,477 Direct | -0.30% | Disposed | 131.6% (price as of 2026-10-05) |
| Aug. 13, 2021 | MTZ | A | 343 | · | · | 25,553 Direct | +1.36% | Acquired | (price as of 2026-10-05) |
| May 14, 2021 | MTZ | F | 60 | $118.41 | $7,105 | 25,210 Direct | -0.24% | Disposed | 82.3% (price as of 2026-10-05) |
| May 14, 2021 | MTZ | A | 270 | · | · | 25,270 Direct | +1.08% | Acquired | (price as of 2026-10-05) |
| March 29, 2021 | MTZ | S | 1,564 | $91.01 | $142,340 | 25,000 Direct | -5.89% | Disposed | 137.2% (price as of 2026-10-05) |
| March 23, 2021 | MTZ | S | 1,700 | $89.92 | $152,864 | 26,564 Direct | -6.01% | Disposed | 140.1% (price as of 2026-10-05) |
| Feb. 12, 2021 | MTZ | F | 82 | $86.57 | $7,099 | 28,264 Direct | -0.29% | Disposed | 149.4% (price as of 2026-10-05) |
| Feb. 12, 2021 | MTZ | A | 369 | · | · | 28,346 Direct | +1.32% | Acquired | (price as of 2026-10-05) |
| Nov. 13, 2020 | MTZ | F | 131 | $53.85 | $7,054 | 27,977 Direct | -0.47% | Disposed | 300.9% (price as of 2026-10-05) |
| Nov. 13, 2020 | MTZ | A | 593 | · | · | 28,108 Direct | +2.16% | Acquired | (price as of 2026-10-05) |
| Aug. 14, 2020 | MTZ | F | 152 | $46.24 | $7,028 | 27,515 Direct | -0.55% | Disposed | 366.9% (price as of 2026-10-05) |
| Aug. 14, 2020 | MTZ | A | 690 | · | · | 27,667 Direct | +2.56% | Acquired | (price as of 2026-10-05) |
| May 15, 2020 | MTZ | F | 213 | $33.12 | $7,055 | 26,977 Direct | -0.78% | Disposed | 551.8% (price as of 2026-10-05) |
| May 15, 2020 | MTZ | A | 964 | · | · | 27,190 Direct | +3.68% | Acquired | (price as of 2026-10-05) |
| Feb. 14, 2020 | MTZ | F | 117 | $60.50 | $7,078 | 26,226 Direct | -0.44% | Disposed | 256.8% (price as of 2026-10-05) |
| Feb. 14, 2020 | MTZ | A | 528 | · | · | 26,343 Direct | +2.05% | Acquired | (price as of 2026-10-05) |
| Nov. 15, 2019 | MTZ | F | 71 | $71.96 | $5,109 | 25,815 Direct | -0.27% | Disposed | 200.0% (price as of 2026-10-05) |
| Nov. 15, 2019 | MTZ | A | 322 | · | · | 25,886 Direct | +1.26% | Acquired | (price as of 2026-10-05) |
| Sept. 10, 2019 | MTZ | S | 3,000 | $64.53 | $193,590 | 25,564 Direct | -10.50% | Disposed | 234.5% (price as of 2026-10-05) |
| Aug. 15, 2019 | MTZ | F | 87 | $59.08 | $5,140 | 28,564 Direct | -0.30% | Disposed | 265.4% (price as of 2026-10-05) |
| Aug. 15, 2019 | MTZ | A | 391 | · | · | 28,651 Direct | +1.38% | Acquired | (price as of 2026-10-05) |
| May 15, 2019 | MTZ | F | 107 | $47.87 | $5,122 | 28,260 Direct | -0.38% | Disposed | 351.0% (price as of 2026-10-05) |
| May 15, 2019 | MTZ | A | 483 | · | · | 28,367 Direct | +1.73% | Acquired | (price as of 2026-10-05) |
| Feb. 15, 2019 | MTZ | F | 118 | $43.46 | $5,128 | 27,884 Direct | -0.42% | Disposed | 396.7% (price as of 2026-10-05) |
| Feb. 15, 2019 | MTZ | A | 532 | · | · | 28,002 Direct | +1.94% | Acquired | (price as of 2026-10-05) |
| Nov. 15, 2018 | MTZ | F | 125 | $46.45 | $5,806 | 27,470 Direct | -0.45% | Disposed | 364.8% (price as of 2026-10-05) |
| Nov. 15, 2018 | MTZ | A | 498 | · | · | 27,595 Direct | +1.84% | Acquired | (price as of 2026-10-05) |
| Aug. 15, 2018 | MTZ | F | 130 | $44.60 | $5,798 | 27,097 Direct | -0.48% | Disposed | 384.0% (price as of 2026-10-05) |
| Aug. 15, 2018 | MTZ | A | 518 | · | · | 27,227 Direct | +1.94% | Acquired | (price as of 2026-10-05) |
| May 15, 2018 | MTZ | F | 119 | $48.85 | $5,813 | 26,709 Direct | -0.44% | Disposed | 341.9% (price as of 2026-10-05) |
| May 15, 2018 | MTZ | A | 473 | · | · | 26,828 Direct | +1.79% | Acquired | (price as of 2026-10-05) |
| Feb. 15, 2018 | MTZ | F | 115 | $50.60 | $5,819 | 26,355 Direct | -0.43% | Disposed | 326.7% (price as of 2026-10-05) |
| Feb. 15, 2018 | MTZ | A | 457 | · | · | 26,470 Direct | +1.76% | Acquired | (price as of 2026-10-05) |
| Nov. 15, 2017 | MTZ | F | 145 | $39.93 | $5,790 | 26,013 Direct | -0.55% | Disposed | 440.7% (price as of 2026-10-05) |
| Nov. 15, 2017 | MTZ | A | 579 | · | · | 26,158 Direct | +2.26% | Acquired | (price as of 2026-10-05) |
| Aug. 15, 2017 | MTZ | F | 145 | $40.00 | $5,800 | 25,579 Direct | -0.56% | Disposed | 439.7% (price as of 2026-10-05) |
| Aug. 15, 2017 | MTZ | A | 578 | · | · | 25,724 Direct | +2.30% | Acquired | (price as of 2026-10-05) |
| May 15, 2017 | MTZ | F | 134 | $43.35 | $5,809 | 25,146 Direct | -0.53% | Disposed | 398.0% (price as of 2026-10-05) |
| May 15, 2017 | MTZ | A | 533 | · | · | 25,280 Direct | +2.15% | Acquired | (price as of 2026-10-05) |
| Feb. 15, 2017 | MTZ | F | 148 | $39.20 | $5,802 | 24,747 Direct | -0.59% | Disposed | 450.7% (price as of 2026-10-05) |
| Feb. 15, 2017 | MTZ | A | 590 | · | · | 24,895 Direct | +2.43% | Acquired | (price as of 2026-10-05) |
| Nov. 15, 2016 | MTZ | F | 153 | $37.90 | $5,799 | 24,305 Direct | -0.63% | Disposed | 469.6% (price as of 2026-10-05) |
| Nov. 15, 2016 | MTZ | A | 610 | · | · | 24,458 Direct | +2.56% | Acquired | (price as of 2026-10-05) |
| Aug. 15, 2016 | MTZ | F | 189 | $30.58 | $5,780 | 23,848 Direct | -0.79% | Disposed | 606.0% (price as of 2026-10-05) |
| Aug. 15, 2016 | MTZ | A | 756 | · | · | 24,037 Direct | +3.25% | Acquired | (price as of 2026-10-05) |
| May 13, 2016 | MTZ | F | 272 | $21.28 | $5,788 | 23,281 Direct | -1.15% | Disposed | 914.5% (price as of 2026-10-05) |
| May 13, 2016 | MTZ | A | 1,086 | · | · | 23,553 Direct | +4.83% | Acquired | (price as of 2026-10-05) |
| Feb. 15, 2016 | MTZ | F | 436 | $13.26 | $5,781 | 22,467 Direct | -1.90% | Disposed | 1528.1% (price as of 2026-10-05) |
| Feb. 15, 2016 | MTZ | A | 1,743 | · | · | 22,903 Direct | +8.24% | Acquired | (price as of 2026-10-05) |
| Nov. 13, 2015 | MTZ | F | 343 | $16.81 | $5,766 | 21,160 Direct | -1.60% | Disposed | 1184.3% (price as of 2026-10-05) |
| Nov. 13, 2015 | MTZ | A | 1,375 | · | · | 21,503 Direct | +6.83% | Acquired | (price as of 2026-10-05) |
| Aug. 14, 2015 | MTZ | F | 331 | $17.41 | $5,763 | 20,128 Direct | -1.62% | Disposed | 1140.0% (price as of 2026-10-05) |
| Aug. 14, 2015 | MTZ | A | 1,327 | · | · | 20,459 Direct | +6.94% | Acquired | (price as of 2026-10-05) |
| April 29, 2015 | MTZ | A | 2,964 | · | · | 19,132 Direct | +18.33% | Acquired | (price as of 2026-10-05) |
| Feb. 13, 2015 | MTZ | F | 278 | $20.75 | $5,768 | 16,168 Direct | -1.69% | Disposed | 940.4% (price as of 2026-10-05) |
Showing latest 100 of 161 transactions
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| March 28, 2011 | MTZ | Non-Qualified Stock Option (right to buy) | Common Stock | $13.68 | June 1, 2016 | 20,000 | Disposed |
| March 28, 2011 | MTZ | Non-Qualified Stock Option (right to buy) | Common Stock | $10.01 | Nov. 1, 2015 | 20,000 | Disposed |
| June 1, 2006 | MTZ | Non-Qualified Stock Option (right to buy) | Common Stock | $13.68 | June 1, 2016 | 20,000 | Acquired |
| Nov. 1, 2005 | MTZ | Non-Qualified Stock Option (right to buy) [F1] | Common Stock | $10.01 | Nov. 1, 2015 | 20,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Oct. 19, 2005 | MTZ | Common Stock | 4,841 | Direct |