John Stephen Morris Turner is Director at Arcadium Lithium plc (ALTM). They have made 1 open-market trade across 1 company since 2024, most recently 2025-03-06.
CIK 0002006343
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 $16K since 2024, never a sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| ALTM | 140,861 | $823K |
Shares reported on the most recent Form 4, priced at the 2024-07-26 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ALTM | BUY | 2024-06-21 | 2024-06-24 | $3.23 | $16K | +2.1% | -0.3% | -24.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.