California Water Service Group VP Greg A. Milleman reported equity compensation activity involving company common stock. On March 7, 2026, he received a grant or award of 900 shares of common stock at $0.00 per share. On the same date, 486 shares and 57 shares were disposed of at $45.59 per share to satisfy tax withholding obligations tied to a restricted stock award and a performance stock unit award. On March 5, 2026, an additional 73 shares were disposed of at $45.78 per share for tax withholding. A performance stock unit award granted on March 7, 2023 vested in full based on board-approved performance criteria, resulting in a 46% payout of the original goal. After these transactions, Milleman directly held 13,387.166 shares of common stock.
California Water Service Group senior vice president Michael S. Mares Jr. reported routine equity compensation activity in company common stock. On March 7, 2026, he acquired 900 shares at $0.00 per share as a grant or award, increasing his direct holdings to 12,969.6 shares.
The filing also shows several share dispositions labeled as tax-withholding events. On March 7, 495 shares and 58 shares were surrendered at $45.59 per share to cover taxes tied to a restricted stock award and a performance stock unit (PSU) vesting. A further 75 shares were withheld on March 5 at $45.78 per share for similar tax obligations.
Footnotes explain that the PSU granted on March 7, 2023 vested in full based on board-approved performance criteria, resulting in a 46% payout of the original goal, which drove part of these tax-related share withholdings.
California Water Service Group SVP, CFO and Treasurer James Patrick Lynch reported a small tax-related share disposition. On the reported date, 56 shares of common stock were withheld and surrendered to the company at $45.78 per share to satisfy tax obligations arising from the vesting of a restricted stock award. After this tax-withholding transaction, Lynch directly owned 6,205.699 shares of California Water Service Group common stock.
California Water Service Group senior vice president Michael B. Luu reported several stock-based compensation transactions in company common stock. On March 7, 2026, he acquired shares through the vesting of a Restricted Stock Award and two Performance Stock Unit awards that vested after the Board-approved performance criteria were satisfied, resulting in a 46% payout of the original goals for the PSUs. On March 7 and March 5, 2026, additional shares were withheld and surrendered back to the company to cover associated tax withholding obligations, rather than being sold on the open market.
California Water Service Group Chairman, President & CEO Martin A. Kropelnicki reported equity compensation activity involving the company’s common stock. On March 7, 2026, he acquired 6,507 shares at $0 per share as a grant/award tied to a Performance Stock Unit (PSU) award granted on March 7, 2023, which vested based on Board-approved performance criteria at a 46% payout of the original goal.
On March 5 and March 7, 2026, shares were disposed of in three transactions coded F (3,817, 385 and 493 shares) at prices of $45.59 and $45.78 per share, representing shares withheld and surrendered to the issuer to satisfy tax withholding obligations on vesting RSAs and PSUs, rather than open-market sales. Following these transactions, Kropelnicki directly owned about 148,828.307 shares of common stock.
California Water Service Group executive Kenneth G. Jenkins, VP Water Resources Planning & Sustainability, reported several equity transactions in company common stock. On March 7, 2026, he acquired 548 shares at $0.00 per share through a grant/award.
On the same date, 281 shares and 33 shares were disposed of at $45.59 per share, and on March 5, 2026 another 42 shares were disposed of at $45.78 per share. Footnotes state these dispositions represent shares withheld and surrendered to the issuer to satisfy tax withholding obligations tied to the vesting of a Restricted Stock Award and a Performance Stock Unit award.
Following these transactions, Jenkins directly owned 5,329 shares of California Water Service Group common stock.
CALIFORNIA WATER SERVICE GROUP executive James Sophie Marwieh, VP Water Quality & Environmental Affairs, reported equity compensation changes in company common stock. On March 7, 2026, Marwieh acquired a grant or award of 548 shares at $0.00 per share. On the same date, Marwieh disposed of 232 shares and 27 shares at $45.59 per share, and on March 5, 2026 disposed of 57 shares at $45.78 per share, all as tax-withholding dispositions. Footnotes explain these shares were withheld and surrendered to the issuer to cover taxes related to the vesting of Restricted Stock Awards and a Performance Stock Unit award granted on March 7, 2023, which vested based on performance criteria and paid out at 46% of the original goal.
California Water Service Group executive reports equity award and tax withholding transactions. Senior vice president Dean Shannon C received a grant of 900 shares of common stock on March 7, 2026 at a stated price of $0.00 per share as a grant or award acquisition. On the same date, 531 and 62 shares of common stock at $45.59 per share were withheld and surrendered to satisfy tax obligations from vested restricted and performance stock awards. An additional 80 shares at $45.78 per share were previously withheld for taxes on March 5, 2026. After these transactions, the executive directly owned 23,816.266 common shares.
California Water Service Group senior vice president and general counsel Shawn C. Bunting reported equity award activity in company common stock. On March 7, 2026, he acquired 750 shares at $0.00 per share as a grant or award tied to prior performance-based and restricted stock awards.
On March 5 and March 7, a total of 547 shares were disposed of at prices around $45.59–$45.78 per share to satisfy tax withholding obligations upon vesting of restricted stock and performance stock units, rather than open-market sales. Following these transactions, he directly owned 4,574 common shares.
California Water Service Group officer Thomas A. Scanlon reported routine equity compensation changes in company stock. On March 3, 2026, he acquired 1,650 shares of restricted common stock at $0.00 per share under the company’s equity incentive plan, labeled as a grant or award.
According to the terms, one-third of this restricted stock vests on March 3, 2027, with the remaining two-thirds vesting quarterly over the following 24 months. On March 4, 2026, 137 shares were withheld and surrendered to the issuer at $46.99 per share to satisfy tax withholding obligations from a prior restricted stock award vesting. After these transactions, he directly held about 5,521.135 shares, including shares accumulated through dividend reinvestment and the employee stock purchase plan.