SEC Form 4 Filing for Michelle Wirfel

Michelle Wirfel, EVP, Chief Operating Officer of California BanCorp (BCAL), reported a disposition of 93 shares of common stock on September 21, 2026. The shares were sold at a price of $21.51 per share, totaling $2,001.43. This disposition was made to cover tax liabilities arising from the vesting of a previously granted award. Following the transaction, Ms. Wirfel directly owns 86,289.93 shares of California BanCorp common stock. The filing was signed by Manisha Merchant, by Power of Attorney for Michele Wirfel, on September 23, 2026.