James Sophie Marwieh 4

What Happened
James (Sophie) Marwieh, VP, Water Quality & Environmental Affairs at California Water Service Group (CWT), received 548 shares on 2026-03-07 as a vested equity award. To satisfy tax withholding obligations, a total of 316 shares were surrendered to the company: 57 shares on 2026-03-05 (@ $45.78, $2,609) and 232 + 27 shares on 2026-03-07 (@ $45.59, $10,577 and $1,231 respectively). The withheld shares total about $14,417 in value; net increase to her holdings from this vesting is 232 shares (548 acquired − 316 withheld).

Key Details

• Transaction types: Award/acquisition (A) of 548 shares (3/7/2026); tax-withholding dispositions (F) of 57 shares (3/5/2026) and 232 & 27 shares (3/7/2026).
• Prices and values: 57 @ $45.78 = $2,609; 232 @ $45.59 = $10,577; 27 @ $45.59 = $1,231. Award listed at $0.00 (vesting).
• Net effect: +232 shares to insider (548 granted − 316 withheld).
• Footnotes: Withholdings represent shares surrendered to satisfy tax withholding on vesting of a Restricted Stock Award (RSA) and a Performance Stock Unit (PSU). The PSU was originally granted 3/7/2023 and vested with a 46% payout based on performance.
• Shares owned after transaction: Not reported on this Form 4.
• Filing: Report filed 2026-03-09 for transactions dated 3/5 and 3/7 — appears to be filed within the normal Form 4 reporting window.

Context
These were equity vesting and tax-withholding transactions (not open-market sales). Withheld shares were surrendered to the issuer to cover taxes — a routine administrative transaction that does not necessarily signal the insider’s view of the company’s stock.