Martin A. Kropelnicki is CEO & Chairman +1 at CALIFORNIA WATER SERVICE GROUP (CWT). They have made 6 open-market trades across 1 company since 2010, most recently 2026-09-05.
CIK 0001222882
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.
5 open-market purchases totalling $424K since 2010, against 1 sale. Across 5 scored buys the stock is up 0.4% at ninety days, and 0.2 points ahead of the S&P over the same stretch.
5 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| CWT | 147,286 | $6.8M |
Shares reported on the most recent Form 4, priced at the 2026-09-08 close.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 100% | 100% | 100% |
| Avg Move | +1.5% | +0.4% | +0.4% |
| Alpha | +7.3% | +0.2% | +0.2% |
| Scored | 5 | 5 | 5 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CWT | BUY | 2013-09-13 | 2013-09-16 | $19.00 | $26K | +1.5% | +0.4% | +0.4% |
| CWT | BUY | 2013-03-05 | 2013-03-06 | $20.62 | $160K | +1.5% | +0.4% | +0.4% |
| CWT | SELL | 2012-03-15 | 2012-03-16 | $18.25 | $110K | +1.5% | +0.4% | +0.4% |
| CWT | BUY | 2012-03-06 | 2012-03-07 | $17.98 | $87K | +1.5% | +0.4% | +0.4% |
| CWT | BUY | 2011-03-01 | 2011-03-02 | $34.87 | $78K | +1.5% | +0.4% | +0.4% |
| CWT | BUY | 2010-03-02 | 2010-03-03 | $35.48 | $73K | +1.5% | +0.4% | +0.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.