Mark J. Stone is Director at NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC). They have made 4 open-market trades across 1 company since 2006, most recently 2012-08-10.
CIK 0001258539
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.
0 open-market purchases, against 4 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| NTIC | SELL | 2012-08-10 | 2012-08-14 | $9.85 | $20K | +0.0% | +0.0% | +0.0% |
| NTIC | SELL | 2012-02-27 | 2012-03-01 | $15.21 | $103K | +0.0% | +0.0% | +0.0% |
| NTIC | SELL | 2011-08-31 | 2011-09-02 | $16.20 | $32K | +0.0% | +0.0% | +0.0% |
| NTIC | SELL | 2010-11-29 | 2010-11-29 | $14.39 | $29K | +0.0% | +0.0% | +0.0% |
| NTIC | SELL · Routine | 2006-01-31 | 2006-02-02 | $4.48 | $22K | +0.0% | +0.0% | +0.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.