MarketPeel
Insider Trading Intelligence
Pricing
…
ML

Michael B. Luu

CWT
VP, CUSTOMER SERVICE & IT · CALIFORNIA WATER SERVICE GROUP · CIK 0001583179
FILING MIX · LIFETIME20%/80%
BUYS
18
SELLS
73
TOTAL VALUE
$1.11M
COMPANIES
1
ACTIVE SINCE
Feb 2020
HOLDINGS NOW
23,807
AVG SELL PX
$51.45
TRADE KIND
SHOWING 91 / 91
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
4 backtested trades · 8 horizons · 4 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Michael B. Luu, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d4+50.00%+0.19%-0.45%+0.64%-0.10%—
14d4+50.00%+0.19%+1.31%-1.11%-0.49%—
30d4+75.00%-2.83%+1.24%-4.07%-2.60%—
60d4+100.00%-6.85%-1.98%-6.45%-5.17%—
90d4+50.00%+0.41%+3.84%-3.43%-2.99%—
180d4(1 pending)+66.67%-0.46%+2.31%-2.77%-2.66%—
1y4(1 pending)+100.00%-12.96%+6.96%-19.93%-23.16%—
2y4(2 pending)+50.00%-4.02%+16.98%-21.00%-21.00%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
CWT · 23,806.765 shares · as of Jun 5, 2026
06,21712,43418,65124,868202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 18 buys / 73 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
SVP Corp Svce & Chief Risk Of
69$45.82$3.2K23,806.765Jun 5, 2026Jun 8, 2026 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
SVP Corp Svce & Chief Risk Of
70$45.24$3.2K23,875.765Jun 4, 2026Jun 8, 2026 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
Sr. VP Corp Svcs & Chief Risk
739.848$44.53$32.9K23,654.887Mar 20, 2026Mar 24, 2026 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
PURCHASEGRANT
Stock grant
205——24,568.735Mar 7, 2026Mar 9, 2026 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
SVP Corp Svce & Chief Risk Of
115$45.59$5.2K24,453.735Mar 7, 2026Mar 9, 2026 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
PURCHASEGRANT
Stock grant
900——24,867.735Mar 7, 2026Mar 9, 2026 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
SVP Corp Svce & Chief Risk Of
504$45.59$23.0K24,363.735Mar 7, 2026Mar 9, 2026 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
SVP Corp Svce & Chief Risk Of
59$45.59$2.7K24,394.735Mar 7, 2026Mar 9, 2026 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
SVP Corp Svce & Chief Risk Of
76$45.78$3.5K23,967.735Mar 5, 2026Mar 9, 2026 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
SVP Corp Svce & Chief Risk Of
309$46.99$14.5K24,043.735Mar 4, 2026Mar 5, 2026 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
PURCHASEGRANT
Stock grant
1,650——24,352.735Mar 3, 2026Mar 5, 2026 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
SVP Corp Svce & Chief Risk Of
54$44.88$2.4K22,610.665Dec 7, 2025Dec 9, 2025 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
SVP Corp Svce & Chief Risk Of
69$44.88$3.1K22,664.665Dec 5, 2025Dec 9, 2025 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
SVP Corp Svce & Chief Risk Of
54$47.09$2.5K22,641.056Sep 7, 2025Sep 9, 2025 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
SVP Corp Svce & Chief Risk Of
69$47.09$3.2K22,695.056Sep 5, 2025Sep 9, 2025 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
Sr. VP Corp Svcs & Chief Risk
54$45.62$2.5K22,380.02Jun 7, 2025Jun 10, 2025 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
Sr. VP Corp Svcs & Chief Risk
67$45.85$3.1K22,434.02Jun 5, 2025Jun 9, 2025 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
Sr. VP Corp Svcs & Chief Risk
54$47.90$2.6K22,501.02Mar 7, 2025Mar 11, 2025 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
Sr. VP Corp Svcs & Chief Risk
270$46.65$12.6K22,502.75Mar 5, 2025Mar 6, 2025 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
PURCHASEGRANT
Stock grant
1,653——22,772.75Mar 4, 2025Mar 5, 2025 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
PURCHASEGRANT
Stock grant
1,814——22,193.75Mar 3, 2025Mar 5, 2025 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
Sr. VP Corp Svcs & Chief Risk
1,014$45.45$46.1K21,179.75Mar 3, 2025Mar 5, 2025 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
Sr. VP Corp Svcs & Chief Risk
60$45.45$2.7K21,119.75Mar 3, 2025Mar 5, 2025 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
Sr. VP Corp Svcs & Chief Risk
53$48.70$2.6K20,340.75Dec 9, 2024Dec 11, 2024 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
Sr. VP Corp Svcs & Chief Risk
54$51.19$2.8K20,300.07Dec 2, 2024Dec 3, 2024 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
Sr. VP Corp Svcs & Chief Risk
985$51.50$50.7K20,354.07Nov 22, 2024Nov 25, 2024 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
Sr. VP Corp Svcs & Chief Risk
53$54.28$2.9K21,339.07Sep 9, 2024Sep 10, 2024 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
Sr. VP Corp Svcs & Chief Risk
54$55.33$3.0K21,325.92Sep 3, 2024Sep 3, 2024 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
Sr. VP Corp Svcs & Chief Risk
54$47.59$2.6K21,379.92Jun 7, 2024Jun 10, 2024 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
PURCHASEGRANT
Stock grant
1,616$49.62$80.2K21,433.92Jun 5, 2024Jun 6, 2024 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
Sr. VP Corp Svcs & Chief Risk
54$49.89$2.7K19,817.92Jun 1, 2024Jun 4, 2024 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Corp Svcs. & Risk Officer
219$46.24$10.1K21,239.99Mar 7, 2024Mar 11, 2024 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
PURCHASEGRANT
Stock grant
1,616$45.37$73.3K21,458.99Mar 5, 2024Mar 7, 2024 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
PURCHASEGRANT
Stock grant
0——19,842.99Mar 5, 2024Mar 18, 2024 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Corp Svcs. & Risk Officer
55$45.53$2.5K19,842.99Mar 3, 2024Mar 5, 2024 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
PURCHASEGRANT
Stock grant
2,258——21,148.99Mar 2, 2024Mar 5, 2024 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Corp Svcs. & Risk Officer
1,251$45.53$57.0K19,897.99Mar 2, 2024Mar 5, 2024 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Corp Svcs. & Risk Officer
60$45.53$2.7K18,890.99Mar 1, 2024Mar 5, 2024 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Corp Svcs. & Risk Officer
55$51.69$2.8K18,849Dec 3, 2023Dec 5, 2023 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Corp Svcs. & Risk Officer
53$51.69$2.7K18,819Dec 1, 2023Dec 5, 2023 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Corp Svcs. & Risk Officer
41$50.10$2.1K18,872Sep 3, 2023Sep 6, 2023 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Corp Svcs. & Risk Officer
40$50.10$2.0K18,832Sep 1, 2023Sep 6, 2023 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Corp Svcs. & Risk Officer
1,873$52.73$98.8K18,872Jun 14, 2023Jun 16, 2023 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
41$57.89$2.4K20,745Jun 3, 2023Jun 5, 2023 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
40$56.12$2.2K20,651Jun 1, 2023Jun 5, 2023 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
PURCHASEGRANT
Stock grant
1,275$58.83$75.0K20,691Mar 7, 2023Mar 9, 2023 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
PURCHASEGRANT
Stock grant
2,470——20,413Mar 3, 2023Mar 6, 2023 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
51$56.84$2.9K17,943Mar 3, 2023Mar 6, 2023 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
997$56.84$56.7K19,416Mar 3, 2023Mar 6, 2023 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
48$56.76$2.7K17,994Mar 2, 2023Mar 3, 2023 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
237$55.90$13.2K18,042Mar 1, 2023Mar 3, 2023 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
43$64.30$2.8K18,204.92Dec 3, 2022Dec 5, 2022 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
40$64.30$2.6K18,196.14Dec 2, 2022Dec 5, 2022 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
43$58.44$2.5K18,236.14Sep 3, 2022Sep 6, 2022 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
41$58.44$2.4K18,236.48Sep 2, 2022Sep 6, 2022 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
425$60.54$25.7K18,277.48Aug 3, 2022Aug 3, 2022 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
43$54.96$2.4K18,702.48Jun 3, 2022Jun 6, 2022 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
40$55.21$2.2K18,618Jun 2, 2022Jun 6, 2022 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
PURCHASEGRANT
Stock grant
2,312——19,523Mar 5, 2022Mar 7, 2022 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
865$58.63$50.7K18,658Mar 5, 2022Mar 7, 2022 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
53$58.63$3.1K17,211Mar 5, 2022Mar 7, 2022 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
51$57.01$2.9K17,264Mar 3, 2022Mar 7, 2022 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
190$56.90$10.8K17,315Mar 2, 2022Mar 3, 2022 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
PURCHASEGRANT
Stock grant
1,278——17,449.75Mar 1, 2022Mar 3, 2022 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
259$69.87$18.1K16,171.75Jan 4, 2022Jan 5, 2022 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
59$65.36$3.9K16,430.75Dec 5, 2021Dec 6, 2021 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
57$65.36$3.7K16,476.85Dec 3, 2021Dec 6, 2021 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
60$64.49$3.9K16,506.7Sep 5, 2021Sep 7, 2021 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
57$64.49$3.7K16,566.7Sep 3, 2021Sep 7, 2021 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
59$56.66$3.3K16,562.53Jun 5, 2021Jun 7, 2021 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
57$56.94$3.2K16,621.53Jun 3, 2021Jun 4, 2021 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
407$57.98$23.6K16,551.7May 6, 2021May 6, 2021 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
PURCHASEGRANT
Stock grant
2,853——18,387.72Mar 6, 2021Mar 9, 2021 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
91$52.96$4.8K15,534.72Mar 6, 2021Mar 9, 2021 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
1,461$52.96$77.4K16,958.7Mar 6, 2021Mar 9, 2021 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
68$52.96$3.6K15,625.72Mar 5, 2021Mar 9, 2021 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
259$53.21$13.8K15,693.72Mar 3, 2021Mar 4, 2021 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
PURCHASEGRANT
Stock grant
1,311——15,952.72Mar 2, 2021Mar 4, 2021 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
PURCHASEGRANT
Stock grant
594——14,641.72Jan 4, 2021Jan 6, 2021 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
80$49.46$4.0K14,025.16Dec 6, 2020Dec 8, 2020 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
59$49.46$2.9K14,049.58Dec 5, 2020Dec 8, 2020 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
80$45.88$3.7K14,108.58Sep 6, 2020Sep 8, 2020 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
60$45.88$2.8K14,125.44Sep 5, 2020Sep 8, 2020 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
80$48.45$3.9K14,185.44Jun 6, 2020Jun 9, 2020 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
59$48.45$2.9K14,128.54Jun 5, 2020Jun 9, 2020 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
80$54.37$4.3K14,187.54Mar 6, 2020Mar 9, 2020 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
239$53.99$12.9K14,211.57Mar 5, 2020Mar 9, 2020 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
PURCHASEGRANT
Stock grant
1,397——14,450.57Mar 3, 2020Mar 5, 2020 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
1,586$47.96$76.1K13,053.57Feb 28, 2020Mar 3, 2020 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
SALE
VP, Customer Service & IT
99$47.96$4.7K11,579.57Feb 28, 2020Mar 3, 2020 ↗View →
CWT
CALIFORNIA WATER SERVICE GROUP
PURCHASEGRANT
Stock grant
3,060——14,639.57Feb 28, 2020Mar 3, 2020 ↗View →
Other insiders · CWT
Loading peer insiders…
About this filer
CIK 0001583179
ROLE
VP, Customer Service & IT
PRIMARY
CWT
COMPANIES
1
ACTIVE SINCE
Feb 2020
MARKETPEEL · /INSIDER/0001583179DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

The morning brief, before the bell.

One short email. Insider buys, congressional trades, and plain-English analysis.

Feedback