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 for Investar Holding Corporation (NASDAQ:ISTR), a bank holding company headquartered in Baton Rouge, Louisiana. In addition, KBRA has assigned senior unsecured debt and deposit ratings of BBB+, a subordinated debt rating of BBB, and short-term debt and deposit ratings of K2 for the subsidiary bank, Investar Bank. The Ou
