Richard Nigon, Director at NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC), bought 2,000 shares at $10.55 ($21K) on 2010-08-27, disclosed to the SEC on 2010-08-27.
Open-market purchase of $21k NTIC by Director. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Nothing distinguishes this filing.
| Filing → |
| CELC | BUY | 2022-09-13 | $45K | — | Filing → |
| CELC | BUY | 2022-05-26 | $4K | — | Filing → |
| TCMD | SELL | 2019-09-11 | $493K | — | Filing → |