Investar Holding Corporation (ISTR) 8-K Summary

This Form 8-K reports a material change in the certifying accountant.

• Auditor Change: HORNE LLP resigned as the independent registered public accounting firm effective November 1, 2025, due to its staff joining BDO USA, P.C.
• New Auditor Appointed: Effective November 3, 2025, the Audit Committee approved the appointment of BDO USA, P.C. as the new independent auditor.
• Audit History: Horne’s reports for FY2024 and FY2023 contained no adverse opinions or modifications.
• Disagreements: There were no di