🕵️ California Water Service Group ($CWT)
SEC insider & ownership activity, last 12 months · CIK 1035201 · every row links its SEC filing
Over the last 12 months insiders sold $453K against $24K of open-market buying. Michael S. Mares Jr. sold $171K in discretionary trades (Mar). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
1 buyer, $24K (1 lots) · 5 sellers, $453K (5 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Michael S. Mares Jr. | 0 | – | 1 | $171K | Mar 20, 2026 |
| Thomas M. Krummel | 0 | – | 1 | $160K | May 21, 2026 |
| Lester A. Snow | 0 | – | 1 | $48K | May 27, 2026 |
| Michelle R. Mortensen | 0 | – | 1 | $40K | Dec 23, 2025 |
| Michael B. Luu | 0 | – | 1 | $33K | Mar 20, 2026 |
| Lynch James Patrick | 1 | $24K | 0 | – | Dec 10, 2025 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Blackrock, Inc. | 17.1% | 13G | Jul 17, 2025 | filing ↗ | |
| Vanguard Portfolio Management | 7.2% | 13G | Apr 29, 2026 | filing ↗ | |
| Amundi | 5.8% | 13G | Jul 22, 2026 | filing ↗ | |
| Amundi Asset Management | 5.8% | 13G | Jul 22, 2026 | filing ↗ | |
| Vanguard Capital Management | 5.3% | 13G | Apr 29, 2026 | filing ↗ | |
| T. ROWE Price Investment Management, Inc. | 5.0% | 13G | Feb 14, 2025 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Thomas M. Krummel | $160K | May 21, 2026 | filing ↗ |
| Michael Mares | $171K | Mar 20, 2026 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Other events (8.01) | Jul 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 29, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 20, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 20, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 20, 2026 | filing ↗ |
| Other events (8.01) | Apr 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 30, 2026 | filing ↗ |
| Earnings (2.02) | Apr 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 29, 2026 | filing ↗ |
| Other events (8.01) | Apr 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 29, 2026 | filing ↗ |
| Other events (8.01) | Mar 17, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 17, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 2, 2026 | filing ↗ |
| Earnings (2.02) | Feb 25, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Feb 25, 2026 | filing ↗ |
| Other events (8.01) | Feb 25, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 25, 2026 | filing ↗ |
| Other events (8.01) | Jan 28, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 28, 2026 | filing ↗ |
| Other events (8.01) | Nov 18, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 18, 2025 | filing ↗ |
| Earnings (2.02) | Oct 30, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 30, 2025 | filing ↗ |
| Other events (8.01) | Oct 29, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 29, 2025 | filing ↗ |
| New financial obligation (2.03) | Oct 1, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 1, 2025 | filing ↗ |
| Earnings (2.02) | Jul 31, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 31, 2025 | filing ↗ |