Nicholas M. Grindstaff is VP & Treasurer at QUANTA SERVICES, INC. (PWR). They have made 6 open-market trades across 1 company since 2006, most recently 2026-07-10.
CIK 0001134710
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 6 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| PWR | SELL | 2021-05-10 | 2021-05-12 | $101.22 | $1.7M | -2.0% | -2.4% | -0.1% |
| PWR | SELL | 2020-11-02 | 2020-11-04 | $64.53 | $1.1M | +6.6% | +8.7% | +16.5% |
| PWR | SELL | 2017-02-27 | 2017-03-01 | $38.20 | $2.1M | -1.6% | -3.1% | -19.7% |
| PWR | SELL | 2012-12-24 | 2012-12-26 | $27.13 | $217K | -9.5% | +1.7% | +1.7% |
| PWR | SELL | 2007-05-10 | 2007-05-11 | $28.86 | $289K | -9.5% | +1.7% | +1.7% |
| PWR | SELL | 2006-08-22 | 2006-08-23 | $17.37 | $39K | -9.5% | +1.7% | +1.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.