California Water Service Group Schedule 13G passive stakes

Amundi and Amundi Asset Management have reported a beneficial ownership of 5.83% in California Water Service Group's common shares.

Vanguard Capital Management has reported beneficial ownership of 5.28% of California Water Service Group's common stock as of March 31, 2026.

Vanguard Portfolio Management has reported beneficial ownership of 4,312,668 shares, representing 7.23% of the outstanding common stock of California Water Service Group.

Amundi and Amundi Asset Management have reported beneficial ownership of 5.82% of California Water Service Group's common shares as of March 31, 2026.

The Vanguard Group has reported a 0% beneficial ownership in California Water Service Group following an internal realignment.

BlackRock, Inc. has filed an amendment to its Schedule 13G, disclosing a beneficial ownership of 17.1% of California Water Service Group's common stock as of June 30, 2025.

T. Rowe Price Investment Management, Inc. has reported a 5.0% beneficial ownership stake in California Water Service Group's common stock as of December 31, 2024.