Michael R. Niggli, Director at ESS Tech, Inc. (GWH), bought 19,100 shares at $2.56 ($49K) on 2022-12-15, disclosed to the SEC on 2022-12-16.
Open-market purchase of $49k GWH by Director. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history). Context: insider career grade D.
Something here stands out, but not much.
| Filing → |
| GWH | BUY | 2023-03-07 | $8K | — | Filing → |
| GWH | BUY | 2022-03-03 | $100K | — | Filing → |