Alberto de Cardenas is CLO & VP at MASTEC INC (MTZ). They have made 7 open-market trades across 1 company since 2012, most recently 2026-03-18.
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 7 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| MTZ | 102,780 | $17.2M |
Shares reported on the most recent Form 4, priced at the 2026-03-20 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MTZ | SELL | 2025-08-05 | 2025-08-07 | $180.70 | $1.8M | -4.8% | -4.0% | +8.1% |
| MTZ | SELL | 2021-03-01 | 2021-03-03 | $89.64 | $3.5M | +9.4% | +9.4% | +31.6% |
| MTZ | SELL | 2020-11-05 | 2020-11-09 | $57.29 | $2.2M | +1.0% | +20.5% | +49.9% |
| MTZ | SELL | 2020-10-09 | 2020-10-13 | $47.02 | $470K | +7.2% | +11.5% | +62.2% |
| MTZ | SELL | 2020-08-12 | 2020-08-14 | $48.41 | $968K | -2.5% | -6.6% | +13.7% |
| MTZ | SELL | 2018-08-03 | 2018-08-07 | $48.00 | $480K | -6.5% | -11.6% | +5.4% |
| MTZ | SELL | 2018-03-01 | 2018-03-02 | $49.55 | $743K | +4.2% | -3.6% | -4.4% |
| MTZ | SELL · 10b5-1 | 2013-03-01 | 2013-03-01 | $31.08 | $1.4M | -15.2% | +2.4% | +2.4% |
| MTZ | SELL · 10b5-1 | 2012-12-13 | 2012-12-14 | $23.56 | $589K | -15.2% | +2.4% | +2.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.