John R. Block is Director at AEMETIS, INC (AMTX). They have made 5 open-market trades across 2 companies since 2009, most recently 2026-03-19.
CIK 0001055711
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 $8K since 2009, against 4 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| AMTX | SELL | 2024-05-23 | 2024-05-24 | $3.49 | $360K | -13.6% | -18.4% | -31.8% |
| AMTX | SELL | 2023-06-16 | 2023-06-20 | $6.30 | $242K | +16.7% | +22.6% | -24.4% |
| AMTX | SELL | 2022-03-14 | 2022-03-15 | $12.12 | $1.0M | +8.8% | +19.3% | -42.8% |
| AMTX | SELL | 2021-03-15 | 2021-09-17 | $14.90 | $1.6M | +18.5% | +31.9% | +0.9% |
| DIGA | BUY | 2009-01-19 | 2009-01-23 | $0.50 | $8K | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.