TRICO BANCSHARES / — Form 8-K

First Hawaiian, Inc. (Parent) agreed to acquire TriCo Bancshares (Company) via merger agreement dated July 12, 2026, with Company shareholders receiving 2.095 shares of Parent Common Stock per Company share held (Exchange Ratio). As of July 10, 2026, Company had 31,965,507 outstanding shares; Parent had 121,676,249 outstanding shares. Transaction includes Second Step Merger of surviving company into Parent, followed by bank merger of Tri Counties Bank (Company subsidiary) into First Hawaiian Bank (Parent subsidiary). Company Shareholder Approval (two-thirds vote) and Parent Stockholder Approval (majority vote) required. Regulatory approvals from Federal Reserve, FDIC, Hawaii Division of Financial Institutions, and California Department of Financial Protection and Innovation needed.