Sandra C. Duhe is Director at UNITED STATES LIME & MINERALS INC (USLM). They have made 5 open-market trades across 1 company since 2023, most recently 2026-05-01.
CIK 0001941532
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.
1 open-market purchase totalling $241 since 2023, against 4 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| USLM | 3,527 | $380K |
Shares reported on the most recent Form 4, priced at the 2026-05-04 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 |
|---|---|---|---|---|---|---|---|---|
| USLM | SELL | 2026-03-03 | 2026-03-04 | $120.45 | $154K | +1.5% | +5.7% | -14.9% |
| USLM | SELL | 2025-02-24 | 2025-02-25 | $94.61 | $597K | -6.0% | -6.1% | +9.6% |
| USLM | SELL | 2024-03-14 | 2024-03-14 | $291.02 | $249K | +1.0% | +1.7% | +17.3% |
| USLM | SELL | 2023-09-13 | 2023-09-15 | $206.92 | $214K | -0.5% | +3.7% | +11.8% |
| USLM | BUY | 2023-06-16 | 2023-09-15 | $— | $241 | -0.5% | +3.7% | +11.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.