Filing Flows › Companies › California Water Service › Timeline
California Water Service stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+13.3% to $51.04
California Water Service (CWT) stock rose 13% over the last 252 sessions, to $51.04. On the way it reported 4 quarters, its insiders filed 10 open-market trades and 3 Form 144 notices of planned sales, and the company filed 0 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Nov 6, 2026 | Form 144 | Form 144: Thomas Krummel plans to sell $187K | +0.4% (+0.1% vs SPY) | — | — |
| Nov 4, 2026 | Form 144 | Form 144: Carol Pottenger plans to sell $133K | +1.7% (+0.1% vs SPY) | — | — |
| Nov 4, 2026 | Insider sale | Pottenger Carol M sold $133K | +1.7% (+0.1% vs SPY) | — | — |
| Nov 4, 2026 | Insider sale | Shimansky Gregory Dale sold $49K | +1.7% (+0.1% vs SPY) | — | — |
| Oct 29, 2026 | Earnings | Earnings: missed the EPS estimate by -13.2% | +1.0% (+1.4% vs SPY) | +5.8% (+6.5% vs SPY) | — |
| Sep 1, 2026 | Insider sale | Snow Lester A sold $25K | −0.5% (+0.2% vs SPY) | −0.2% (−0.1% vs SPY) | −7.7% (−7.3% vs SPY) |
| Aug 13, 2026 | Form 144 | Form 144: Thomas M Krummel plans to sell $185K | +0.4% (−0.3% vs SPY) | −0.1% (+0.3% vs SPY) | −3.6% (−2.5% vs SPY) |
| Aug 13, 2026 | Insider sale | Krummel Thomas M sold $186K | +0.4% (−0.3% vs SPY) | −0.1% (+0.3% vs SPY) | −3.6% (−2.5% vs SPY) |
| Jul 30, 2026 | Earnings | Earnings: beat the EPS estimate by 47.6% | −2.4% (−4.1% vs SPY) | −3.9% (−9.3% vs SPY) | −2.5% (−8.1% vs SPY) |
| May 27, 2026 | Insider sale | Snow Lester A sold $48K | +1.3% (+1.3% vs SPY) | +4.1% (+3.0% vs SPY) | +8.9% (+10.8% vs SPY) |
| May 21, 2026 | Insider sale | Krummel Thomas M sold $160K | −0.3% (−0.5% vs SPY) | +1.1% (−0.7% vs SPY) | +4.2% (+3.5% vs SPY) |
| Apr 30, 2026 | Earnings | Earnings: missed the EPS estimate by -70.2% | −7.2% (−8.2% vs SPY) | −5.3% (−8.4% vs SPY) | +0.2% (−5.9% vs SPY) |
| Mar 20, 2026 | Insider sale | Mares Michael S JR sold $171K | −0.8% (+0.7% vs SPY) | +1.9% (+3.8% vs SPY) | +5.7% (−1.7% vs SPY) |
| Mar 20, 2026 | Insider sale | Luu Michael B sold $33K | −0.8% (+0.7% vs SPY) | +1.9% (+3.8% vs SPY) | +5.7% (−1.7% vs SPY) |
| Feb 25, 2026 | Earnings | Earnings: missed the EPS estimate by -42.4% | +0.6% (−0.3% vs SPY) | +1.3% (+2.3% vs SPY) | −5.4% (−1.1% vs SPY) |
| Dec 23, 2025 | Insider sale | Mortensen Michelle R sold $40K | −0.5% (−1.0% vs SPY) | +0.7% (+0.4% vs SPY) | +2.0% (+1.4% vs SPY) |
| Dec 10, 2025 | Insider buy | Lynch James Patrick bought $24K | +1.2% (+0.5% vs SPY) | +3.7% (+4.3% vs SPY) | +3.0% (+1.2% vs SPY) |
Insiders’ record here
In the year on the chart, California Water Service's insiders reported 1 open-market buy ($24K) and 9 sales ($846K). Of the 6 old enough to score, 3 were followed by the stock doing what the trade implied over the next 63 sessions (beating SPY after a buy, lagging it after a sale); the median excess return after a buy was +9.3% and after a sale +10.9%.
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
Report card: every quarter against the estimate → California Water Service: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.