Thomas M. Krummel is Director at CALIFORNIA WATER SERVICE GROUP (CWT). They have made 19 open-market trades across 2 companies since 2010, most recently 2026-08-13.
CIK 0001495768
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 $311K since 2010, against 14 sales. Across 5 scored buys the stock is down 6.7% at ninety days, and 7.8 points behind the S&P over the same stretch.
5 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| CWT | 20,103 | $932K |
| PRCT | 47,007 | $826K |
| Total | $1.8M |
Shares reported on the most recent Form 4, priced at the 2026-08-14 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 80% | 100% | 80% |
| Avg Move | +1.2% | +2.4% | -6.7% |
| Alpha | +5.9% | +1.4% | -7.8% |
| Scored | 5 | 5 | 5 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CWT | SELL | 2026-08-13 | 2026-08-14 | $50.37 | $186K | +0.6% | -3.4% | — |
| CWT | SELL | 2026-05-21 | 2026-05-21 | $43.30 | $160K | +3.3% | +4.1% | +15.0% |
| CWT | SELL | 2024-09-04 | 2024-09-04 | $55.09 | $31K | -0.0% | -4.4% | -10.6% |
| CWT | SELL | 2024-08-21 | 2024-08-22 | $54.33 | $30K | +1.2% | -1.0% | -6.1% |
| CWT | SELL | 2024-08-07 | 2024-08-08 | $52.91 | $29K | +2.2% | +1.9% | -2.0% |
| CWT | SELL | 2024-07-17 | 2024-07-17 | $52.99 | $29K | +0.2% | +3.6% | +2.7% |
| CWT | SELL | 2024-07-11 | 2024-07-11 | $50.07 | $166K | +0.7% | +2.0% | +1.2% |
| CWT | SELL | 2024-05-15 | 2024-05-15 | $53.26 | $30K | -7.2% | -9.8% | -0.1% |
| PRCT | SELL · 10b5-1 | 2024-05-01 | 2024-05-03 | $60.00 | $1.2M | +6.4% | +0.8% | -4.6% |
| CWT | SELL · 10b5-1 | 2024-05-01 | 2024-05-01 | $50.00 | $111K | +5.1% | -0.3% | +6.5% |
| PRCT | SELL · 10b5-1 | 2024-03-04 | 2024-03-06 | $48.53 | $1.9M | +2.5% | -1.0% | +41.6% |
| CWT | SELL | 2024-01-03 | 2024-01-04 | $51.90 | $29K | -5.5% | -9.6% | -9.2% |
| CWT | SELL | 2023-12-20 | 2023-12-20 | $53.45 | $30K | -2.4% | -9.9% | -12.8% |
| CWT | SELL | 2023-11-15 | 2023-11-15 | $51.77 | $29K | -2.2% | +1.8% | -11.2% |
| CWT | SELL · 10b5-1 | 2023-11-02 | 2023-11-03 | $50.00 | $111K | -1.7% | +1.6% | -12.0% |
| CWT | SELL | 2022-12-13 | 2022-12-19 | $64.89 | $30K | +0.3% | +2.0% | -4.4% |
| CWT | SELL | 2022-11-30 | 2022-11-30 | $62.92 | $192K | -1.0% | -5.8% | -11.1% |
| PRCT | SELL | 2022-06-21 | 2022-06-22 | $36.06 | $1.3M | -6.0% | +7.8% | +21.5% |
| PRCT | BUY | 2021-09-17 | 2021-09-21 | $25.00 | $125K | -0.1% | +10.3% | -35.2% |
| CWT | BUY | 2013-03-05 | 2013-03-06 | $20.62 | $57K | +1.5% | +0.4% | +0.4% |
| CWT | BUY | 2012-03-06 | 2012-03-07 | $17.98 | $53K | +1.5% | +0.4% | +0.4% |
| CWT | BUY | 2011-03-01 | 2011-03-02 | $34.87 | $51K | +1.5% | +0.4% | +0.4% |
| CWT | BUY | 2010-08-05 | 2010-08-05 | $35.90 | $25K | +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.