Leslie T. Thornton is Director at Southwest Gas Holdings, Inc. (SWX). They have made 9 open-market trades across 2 companies since 2008, most recently 2026-05-21.
CIK 0001348352
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.
4 open-market purchases totalling $105K since 2008, against 5 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| WGL | 26,475 | $2.3M |
| PRDO | 65,148 | $2.2M |
| SWX | 17,201 | $1.5M |
| CECO | 19,619 | $1.1M |
| Total | $7.2M |
Shares reported on the most recent Form 4, priced at the 2026-05-26 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 |
|---|---|---|---|---|---|---|---|---|
| PRDO | SELL | 2026-03-13 | 2026-03-13 | $35.37 | $747K | +6.6% | -2.1% | -0.5% |
| PRDO | SELL | 2025-05-07 | 2025-05-08 | $30.76 | $1.3M | +3.2% | +6.3% | +3.0% |
| PRDO | SELL | 2023-03-01 | 2023-03-02 | $13.76 | $220K | -2.5% | -2.2% | -14.0% |
| PRDO | SELL | 2022-08-16 | 2022-08-17 | $12.38 | $101K | -4.3% | -14.3% | +13.9% |
| PRDO | SELL | 2022-03-03 | 2022-03-07 | $10.75 | $172K | +8.3% | +5.6% | +3.5% |
| CECO | BUY | 2010-11-09 | 2010-11-12 | $17.98 | $78K | -8.7% | -2.9% | -2.9% |
| CECO | BUY | 2010-05-10 | 2010-11-12 | $29.85 | $10K | -8.7% | -2.9% | -2.9% |
| CECO | BUY | 2010-05-10 | 2010-05-11 | $29.85 | $11K | -8.7% | -2.9% | -2.9% |
| CECO | BUY | 2008-05-14 | 2008-05-16 | $19.37 | $6K | -8.7% | -2.9% | -2.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.