Stephanie Zapata Moore is CLO & VP at Vistra Energy Corp. (VST). They have made 13 open-market trades across 1 company since 2017, most recently 2026-03-09.
CIK 0001703634
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 13 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| VST | 114,409 | $17.4M |
Shares reported on the most recent Form 4, priced at the 2026-03-12 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| VST | SELL | 2026-03-09 | 2026-03-12 | $160.31 | $1.6M | -5.6% | -2.2% | -14.4% |
| VST | SELL | 2025-11-24 | 2025-11-26 | $173.35 | $2.8M | -7.9% | -9.7% | -4.1% |
| VST | SELL | 2025-05-27 | 2025-05-29 | $161.44 | $5.7M | +3.6% | +21.9% | +22.4% |
| VST | SELL | 2024-11-22 | 2024-11-26 | $161.94 | $12.4M | -8.3% | -10.9% | -11.7% |
| VST | SELL | 2024-08-13 | 2024-08-15 | $80.37 | $5.6M | +4.3% | +10.2% | +75.2% |
| VST | SELL | 2024-03-05 | 2024-03-07 | $58.49 | $8.1M | +3.2% | +20.6% | +49.1% |
| VST | SELL | 2023-08-11 | 2023-08-15 | $30.40 | $14.0M | -0.5% | +9.1% | +13.6% |
| VST | SELL | 2022-05-17 | 2022-05-19 | $25.08 | $8.3M | -0.2% | -12.3% | -1.7% |
| VST | SELL | 2020-03-05 | 2020-03-09 | $20.76 | $20K | -25.1% | -8.1% | +15.9% |
| VST | SELL | 2019-11-11 | 2019-11-13 | $26.15 | $118K | -25.1% | -8.1% | +15.9% |
| VST | SELL | 2019-05-08 | 2019-05-10 | $25.31 | $30K | +4.1% | -1.4% | -6.9% |
| VST | SELL | 2018-11-07 | 2018-11-09 | $24.61 | $114K | -5.3% | -1.8% | +6.0% |
| VST | SELL | 2017-11-07 | 2017-12-05 | $19.27 | $48K | -3.0% | +3.6% | +11.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.