Form 4 Filing: Michelle Wirfel Disposes of 93 Shares of Common Stock

This filing details a transaction by Michelle Wirfel, EVP, Chief Operating Officer of California BanCorp (BCAL), on December 21, 2025. Ms. Wirfel disposed of 93 shares of common stock at a price of $19.50 per share, resulting in 76,692 shares held post-transaction. The disposition was made to cover tax liabilities arising from the vesting of a previously granted award, as indicated by footnote F1. The transaction code 'F' signifies a disposition, and the ownership is direct.