Larry Shelton is Director at PERMA FIX ENVIRONMENTAL SERVICES INC (PESI). They have made 12 open-market trades across 1 company since 2008, most recently 2026-07-13.
CIK 0001370728
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.
12 open-market purchases totalling $70K since 2008, never a sale. Across 12 scored buys the stock is up 9.9% at ninety days, and 5.4 points ahead of the S&P over the same stretch.
12 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| PESI | 198,983 | $2.5M |
Shares reported on the most recent Form 4, priced at the 2026-07-14 close.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 92% | 50% | 42% |
| Avg Move | +2.1% | +2.8% | +9.9% |
| Alpha | +3.3% | +0.8% | +5.4% |
| Scored | 12 | 12 | 12 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| PESI | BUY | 2025-09-11 | 2025-09-12 | $8.58 | $9K | +4.8% | +14.5% | +58.7% |
| PESI | BUY | 2025-09-09 | 2025-09-10 | $9.61 | $10K | -2.2% | +5.2% | +43.3% |
| PESI | BUY | 2023-12-01 | 2023-12-04 | $7.20 | $14K | +5.8% | -0.3% | +13.8% |
| PESI | BUY | 2022-06-16 | 2022-06-21 | $5.05 | $187 | +0.4% | +4.3% | -9.4% |
| PESI | BUY | 2022-06-13 | 2022-06-15 | $5.33 | $5K | +2.4% | +8.9% | -5.0% |
| PESI | BUY | 2021-01-04 | 2021-01-05 | $4.48 | $11K | +8.3% | +9.3% | +25.8% |
| PESI | BUY | 2020-11-09 | 2020-11-09 | $6.32 | $6K | +1.9% | +1.4% | +1.4% |
| PESI | BUY | 2013-05-22 | 2013-05-24 | $0.68 | $1K | +0.8% | -1.9% | -1.9% |
| PESI | BUY | 2012-05-25 | 2012-05-29 | $1.20 | $6K | +0.8% | -1.9% | -1.9% |
| PESI | BUY | 2008-11-14 | 2008-11-14 | $1.30 | $3K | +0.8% | -1.9% | -1.9% |
| PESI | BUY | 2008-09-04 | 2008-09-08 | $2.38 | $2K | +0.8% | -1.9% | -1.9% |
| PESI | BUY | 2008-05-14 | 2008-05-14 | $2.35 | $2K | +0.8% | -1.9% | -1.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.