X0609 4 2026-07-31 false 0001795815 California BanCorp \ CA BCAL 0001968951 Machado Lester false C/O CALIFORNIA BANCORP 355 S. GRAND AVE STE 1200 LOS ANGELES CA 90071 true false false false false Common Stock 2026-07-31 4 M false 7500.00 12.96 A 29890.51 D Common Stock 2026-07-31 4 S false 7500.00 21.193 D 22390.51 D Common Stock 2026-07-31 4 J false 9142.00 0.00 D 13248.51 D Common Stock 2026-07-31 4 J false 9142.00 0.00 A 53712.00 I Lester Machado & Robert M Pedersen TR UA 03/13/14 Machado-Pedersen Family Trust Stock Options 12.96 2026-07-31 4 M false 7500.00 0.00 D 2024-02-20 2029-02-20 Common Stock 7500.00 0.00 D This transaction was executed in multiple trades at prices ranging from $21.03 USD to $21.37 USD; the price reported above reflects the weighted average sale price. Shares transferred to the Reporting Person's living trust account. These options are fully vested. Manisha Merchant, by POA for Lester Machado 2026-08-04