NEW YORK–(BUSINESS WIRE)–Kroll Bond Rating Agency (KBRA) has assigned a senior unsecured debt rating of BBB, subordinated debt rating of BBB-, and short-term debt rating of K3 to Chico, California based TriCo Bancshares (NASDAQ: TCBK) (“the Company”). KBRA has also assigned deposit and senior unsecured debt ratings of BBB+, a subordinated debt rating of BBB, and short-term deposit and debt ratings of K2 to the subsidiary bank, Tri Counties Bank. The Outlook on all long-term ratings is Stable.