Jeffrey T. Armstrong is Director at Piedmont Lithium Inc. (PLL). They have made 5 open-market trades across 1 company since 2021, most recently 2025-08-29.
CIK 0001865192
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.
5 open-market purchases totalling $855K since 2021, never a sale. Across 5 scored buys the stock is up 20.2% at ninety days, and 20.8 points ahead of the S&P over the same stretch.
5 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| PLL | 50,824 | $368K |
Shares reported on the most recent Form 4, priced at the 2024-06-13 close.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 40% | 60% | 60% |
| Avg Move | -1.7% | +8.6% | +20.2% |
| Alpha | -2.9% | +5.2% | +20.8% |
| Scored | 5 | 5 | 5 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| PLL | BUY | 2022-06-29 | 2022-07-05 | $38.27 | $191K | -8.7% | +25.1% | +54.3% |
| PLL | BUY | 2022-01-25 | 2022-01-26 | $43.78 | $109K | +3.7% | +13.3% | +40.9% |
| PLL | BUY | 2021-12-15 | 2021-12-16 | $50.00 | $125K | -3.6% | -3.2% | +33.0% |
| PLL | BUY | 2021-09-29 | 2021-09-30 | $51.09 | $255K | +5.8% | +18.7% | -7.1% |
| PLL | BUY | 2021-07-07 | 2021-07-07 | $69.62 | $174K | -5.9% | -10.8% | -19.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.