Jeffrey Scott Stein is Director at DYNEGY INC. (DYN). They have made 6 open-market trades across 2 companies since 2015, most recently 2026-06-01.
CIK 0001559518
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.
6 open-market purchases totalling $541K since 2015, never a sale. Across 6 scored buys the stock is up 7.1% at ninety days, and 1.9 points ahead of the S&P over the same stretch.
6 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 17% | 50% | 83% |
| Avg Move | -3.7% | +0.5% | +7.1% |
| Alpha | -14.9% | -0.9% | +1.9% |
| Scored | 6 | 6 | 6 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| AMBC | BUY | 2025-05-14 | 2025-05-15 | $6.46 | $97K | -0.8% | -11.4% | +4.1% |
| AMBC | BUY | 2024-08-07 | 2024-08-08 | $10.82 | $271K | +0.1% | -5.2% | +3.5% |
| AMBC | BUY | 2019-05-29 | 2019-05-30 | $15.42 | $46K | -1.8% | +11.7% | +18.2% |
| AMBC | BUY | 2016-01-07 | 2016-01-08 | $12.88 | $58K | -3.4% | +4.3% | +13.1% |
| DYN | BUY | 2015-08-21 | 2015-08-24 | $24.71 | $25K | -4.8% | +5.8% | +5.8% |
| AMBC | BUY | 2015-07-08 | 2015-07-09 | $17.99 | $45K | -11.6% | -2.0% | -2.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.