Mechanics Bancorp

On June 17, 2026, Tony Kallingal, the Company’s Chief Banking Officer, entered into a “Rule 10b5-1 trading arrangement” as that term is defined in Regulation S-K, Item 408(a). Mr. Kallingal’s plan is intended to satisfy the affirmative defense of Rule 10b5-1(c) under the Exchange Act. The plan provides for the sale of 20% of net shares from RSUs that vest during the duration of the plan, which excludes any shares withheld by the Company to satisfy income tax withholding. Mr. Kallingal’s plan will expire on March 26, 2027, subject to early termination for certain specified events set forth in the plan.

On June 18, 2026, Glenn Shrader, the Company’s General Counsel, entered into a “Rule 10b5-1 trading arrangement” as that term is defined in Regulation S-K, Item 408(a). Mr. Shrader’s plan is intended to satisfy the affirmative defense of Rule 10b5-1(c) under the Exchange Act. The plan provides for the sale of 6,100 shares of MCHB common stock and 100% of net shares from RSUs that vest during the duration of the plan, which excludes any shares withheld by the Company to satisfy income tax withholding. Mr. Shrader’s plan will expire on March 31, 2028, subject to early termination for certain specified events set forth in the plan.

Other than as described above, no other of our directors or officers adopted, modified, orterminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as those terms are defined in Regulation S-K, Item 408(a), during the second quarter of 2026.