Arnold P. Kling is President & 10% Owner at PROTALEX INC (PRTX). They have made 1 open-market trade across 1 company since 2006, most recently 2018-03-13.
CIK 0001276711
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 $22.3M since 2018, never a sale. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| PRTX | BUY | 2018-02-28 | 2018-03-02 | $1.20 | $22.3M | 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.