---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-019681"
form_type: "8-K"
ticker: "CWT"
cik: "0001035201"
company_name: "CALIFORNIA WATER SERVICE GROUP"
filed_at: "2026-02-25T23:59:59+00:00"
generated_at: "2026-05-16T00:03:14.773193+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.9
calibrated_materiality_score: 0.9
confidence: "high"
source: SEC EDGAR
---

# California Water Service Group reports Q4 2025 earnings and acquires Nexus Water Group's Nevada/Oregon units for $218M

## Summary
- Q4 2025 net income fell 42% to $11.5M ($0.19 per share) as wet December weather reduced customer consumption.
- Full-year 2025 net income was $128.2M ($2.15 per share), down 32.8% from $190.8M in 2024.
- Signed definitive agreement to buy Nexus Water Group's Nevada and Oregon subsidiaries for approximately $218 million.
- Acquisition adds about 36,000 equivalent residential connections and increases consolidated rate base by ~$109 million.
- Company invested a record $517 million in water system infrastructure during 2025.

## SEC filing metadata
- accession: 0001104659-26-019681
- form_type: 8-K
- ticker: CWT
- cik: 0001035201
- company_name: CALIFORNIA WATER SERVICE GROUP
- filed_at: 2026-02-25T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.9
- calibrated_materiality_score: 0.9
- confidence: high
- sec_items: 2.02, 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1035201/000110465926019681/0001104659-26-019681-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1035201/000110465926019681/tm267278d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-019681
- JSON: https://secwatch.observer/filing/0001104659-26-019681.json
- Plain text: https://secwatch.observer/filing/0001104659-26-019681.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.