Luu Michael B has filed 49 insider transactions across 1 company since March 2023.
Most recent transaction: a sale of 739 shares of CALIFORNIA WATER SERVICE GROUP ($CWT) on March 20, 2026.
Activity breakdown: 0 open-market purchases and 2 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 20, 2026 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | Sr. VP Corp Svcs & Chief Risk | S | Common Stock | 740 | $44.53 | 23,654.8870 | 59,653,000 | 3.03% | 0.00% |
| March 7, 2026 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | SVP Corp Svce & Chief Risk Of | F | Common Stock | 115 | $45.59 | 24,453.7350 | 59,653,000 | 0.47% | 0.00% |
| March 7, 2026 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | SVP Corp Svce & Chief Risk Of | A | Common Stock | 205 | $0.00 | 24,568.7350 | 59,653,000 | 0.84% | 0.00% |
| March 7, 2026 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | SVP Corp Svce & Chief Risk Of | F | Common Stock | 59 | $45.59 | 24,394.7350 | 59,653,000 | 0.24% | 0.00% |
| March 5, 2026 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | SVP Corp Svce & Chief Risk Of | F | Common Stock | 76 | $45.78 | 23,967.7350 | 59,653,000 | 0.32% | 0.00% |
| March 7, 2026 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | SVP Corp Svce & Chief Risk Of | A | Common Stock | 900 | $0.00 | 24,867.7350 | 59,653,000 | 3.76% | 0.00% |
| March 7, 2026 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | SVP Corp Svce & Chief Risk Of | F | Common Stock | 504 | $45.59 | 24,363.7350 | 59,653,000 | 2.03% | 0.00% |
| March 4, 2026 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | SVP Corp Svce & Chief Risk Of | F | Common Stock | 309 | $46.99 | 24,043.7350 | 59,653,000 | 1.27% | 0.00% |
| March 3, 2026 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | SVP Corp Svce & Chief Risk Of | A | Common Stock | 1650 | $0.00 | 24,352.7350 | 59,653,000 | 7.27% | 0.00% |
| Dec. 5, 2025 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | SVP Corp Svce & Chief Risk Of | F | Common Stock | 69 | $44.88 | 22,664.6650 | 59,653,000 | 0.30% | 0.00% |
| Dec. 7, 2025 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | SVP Corp Svce & Chief Risk Of | D | Common Stock | 54 | $44.88 | 22,610.6650 | 59,653,000 | 0.24% | 0.00% |
| Sept. 7, 2025 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | SVP Corp Svce & Chief Risk Of | F | Common Stock | 54 | $47.09 | 22,641.0560 | 58,647,000 | 0.24% | 0.00% |
| Sept. 5, 2025 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | SVP Corp Svce & Chief Risk Of | F | Common Stock | 69 | $47.09 | 22,695.0560 | 58,647,000 | 0.30% | 0.00% |
| June 7, 2025 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | Sr. VP Corp Svcs & Chief Risk | F | Common Stock | 54 | $45.62 | 22,380.0200 | 58,647,000 | 0.24% | 0.00% |
| June 5, 2025 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | Sr. VP Corp Svcs & Chief Risk | F | Common Stock | 67 | $45.85 | 22,434.0200 | 58,647,000 | 0.30% | 0.00% |
| March 7, 2025 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | Sr. VP Corp Svcs & Chief Risk | F | Common Stock | 54 | $47.90 | 22,501.0200 | 58,647,000 | 0.24% | 0.00% |
| March 5, 2025 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | Sr. VP Corp Svcs & Chief Risk | F | Common Stock | 270 | $46.65 | 22,502.7500 | 58,647,000 | 1.19% | 0.00% |
| March 3, 2025 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | Sr. VP Corp Svcs & Chief Risk | F | Common Stock | 60 | $45.45 | 21,119.7500 | 58,647,000 | 0.28% | 0.00% |
| March 3, 2025 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | Sr. VP Corp Svcs & Chief Risk | A | Common Stock | 1814 | $0.00 | 22,193.7500 | 58,647,000 | 8.90% | 0.00% |
| March 3, 2025 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | Sr. VP Corp Svcs & Chief Risk | F | Common Stock | 1014 | $45.45 | 21,179.7500 | 58,647,000 | 4.57% | 0.00% |
| March 4, 2025 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | Sr. VP Corp Svcs & Chief Risk | A | Common Stock | 1653 | $0.00 | 22,772.7500 | 58,647,000 | 7.83% | 0.00% |
| Dec. 9, 2024 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | Sr. VP Corp Svcs & Chief Risk | F | Common Stock | 53 | $48.70 | 20,340.7500 | 58,982,000 | 0.26% | 0.00% |
| Dec. 2, 2024 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | Sr. VP Corp Svcs & Chief Risk | F | Common Stock | 54 | $51.19 | 20,300.0700 | 58,982,000 | 0.27% | 0.00% |
| Nov. 22, 2024 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | Sr. VP Corp Svcs & Chief Risk | S | Common Stock | 985 | $51.50 | 20,354.0700 | 58,982,000 | 4.62% | 0.00% |
| Sept. 9, 2024 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | Sr. VP Corp Svcs & Chief Risk | F | Common Stock | 53 | $54.28 | 21,339.0700 | 56,983,000 | 0.25% | 0.00% |
| Sept. 3, 2024 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | Sr. VP Corp Svcs & Chief Risk | F | Common Stock | 54 | $55.33 | 21,325.9200 | 56,983,000 | 0.25% | 0.00% |
| June 7, 2024 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | Sr. VP Corp Svcs & Chief Risk | F | Common Stock | 54 | $47.59 | 21,379.9200 | 56,983,000 | 0.25% | 0.00% |
| June 5, 2024 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | Sr. VP Corp Svcs & Chief Risk | A | Common Stock | 1616 | $49.62 | 21,433.9200 | 56,983,000 | 8.15% | 0.00% |
| June 1, 2024 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | Sr. VP Corp Svcs & Chief Risk | F | Common Stock | 54 | $49.89 | 19,817.9200 | 56,983,000 | 0.27% | 0.00% |
| March 5, 2024 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | Sr. VP Corp Svcs & Chief Risk | A | Common Stock | 0 | $0.00 | 19,842.9900 | 56,983,000 | 0.00% | 0.00% |
| March 7, 2024 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | VP, Corp Svcs. & Risk Officer | F | Common Stock | 219 | $46.24 | 21,239.9900 | 56,983,000 | 1.02% | 0.00% |
| March 5, 2024 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | VP, Corp Svcs. & Risk Officer | A | Common Stock | 1616 | $45.37 | 21,458.9900 | 56,983,000 | 8.14% | 0.00% |
| March 1, 2024 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | VP, Corp Svcs. & Risk Officer | F | Common Stock | 60 | $45.53 | 18,890.9900 | 56,983,000 | 0.32% | 0.00% |
| March 2, 2024 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | VP, Corp Svcs. & Risk Officer | A | Common Stock | 2258 | $0.00 | 21,148.9900 | 56,983,000 | 11.95% | 0.00% |
| March 2, 2024 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | VP, Corp Svcs. & Risk Officer | F | Common Stock | 1251 | $45.53 | 19,897.9900 | 56,983,000 | 5.92% | 0.00% |
| March 3, 2024 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | VP, Corp Svcs. & Risk Officer | F | Common Stock | 55 | $45.53 | 19,842.9900 | 56,983,000 | 0.28% | 0.00% |
| Dec. 3, 2023 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | VP, Corp Svcs. & Risk Officer | F | Common Stock | 55 | $51.69 | 18,849.0000 | 54,363,000 | 0.29% | 0.00% |
| Dec. 1, 2023 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | VP, Corp Svcs. & Risk Officer | F | Common Stock | 53 | $51.69 | 18,819.0000 | 54,363,000 | 0.28% | 0.00% |
| Sept. 1, 2023 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | VP, Corp Svcs. & Risk Officer | D | Common Stock | 40 | $50.10 | 18,832.0000 | 54,363,000 | 0.21% | 0.00% |
| Sept. 3, 2023 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | VP, Corp Svcs. & Risk Officer | D | Common Stock | 41 | $50.10 | 18,872.0000 | 54,363,000 | 0.22% | 0.00% |
| June 14, 2023 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | VP, Corp Svcs. & Risk Officer | D | Common Stock | 1873 | $52.73 | 18,872.0000 | 54,363,000 | 9.03% | 0.00% |
| June 1, 2023 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | VP, Customer Service & IT | D | Common Stock | 40 | $56.12 | 20,651.0000 | 54,363,000 | 0.19% | 0.00% |
| June 3, 2023 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | VP, Customer Service & IT | D | Common Stock | 41 | $57.89 | 20,745.0000 | 54,363,000 | 0.20% | 0.00% |
| March 7, 2023 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | VP, Customer Service & IT | A | Common Stock | 1275 | $58.83 | 20,691.0000 | 54,363,000 | 6.57% | 0.00% |
| March 3, 2023 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | VP, Customer Service & IT | F | Common Stock | 51 | $56.84 | 17,943.0000 | 54,363,000 | 0.28% | 0.00% |
| March 3, 2023 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | VP, Customer Service & IT | F | Common Stock | 997 | $56.84 | 19,416.0000 | 54,363,000 | 4.88% | 0.00% |
| March 3, 2023 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | VP, Customer Service & IT | A | Common Stock | 2470 | $0.00 | 20,413.0000 | 54,363,000 | 13.77% | 0.00% |
| March 1, 2023 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | VP, Customer Service & IT | F | Common Stock | 237 | $55.90 | 18,042.0000 | 54,363,000 | 1.30% | 0.00% |
| March 2, 2023 | CALIFORNIA WATER SERVICE GROUP | $CWT | Luu Michael B | VP, Customer Service & IT | F | Common Stock | 48 | $56.76 | 17,994.0000 | 54,363,000 | 0.27% | 0.00% |