Investor Presentaiton

Disclosures and Disclaimers This presentation contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 that reflect Investar's current views with respect to, among other things, future events and financial performance. Investar generally identifies forward-looking statements by terminology such as "outlook,” “believes,” “expects," "potential," "continues,” "may," "will," "could,” “should,” “seeks," "approximately," "predicts," "intends," "plans," "estimates," "anticipates," or the negative version of those words or other comparable words. Any forward-looking statements contained in this presentation are based on the historical performance of Investar and its subsidiaries or on Investar's current plans, estimates and expectations. The inclusion of this forward-looking information should not be regarded as a representation by Investar that the future plans, estimates or expectations by Investar will be achieved. Such forward-looking statements are subject to various risks and uncertainties and assumptions relating to Investar's operations, financial results, financial condition, business prospects, growth strategy and liquidity. If one or more of these or other risks or uncertainties materialize, or if Investar's underlying assumptions prove to be incorrect, Investar's actual results may vary materially from those indicated in these statements. Investar does not undertake any obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future developments or otherwise. A number of important factors could cause actual results to differ materially from those indicated by the forward-looking statements. These factors include, but are not limited to, the following, any one or more of which could materially affect the outcome of future events: • • the significant risks and uncertainties for our business, results of operations and financial condition, as well as our regulatory capital and liquidity ratios and other regulatory requirements caused by business and economic conditions generally and in the financial services industry in particular, whether nationally, regionally or in the markets in which we operate, including risks and uncertainties caused by the ongoing COVID-19 pandemic, potential continued higher inflation and interest rates, supply and labor constraints, the war in Ukraine and uncertainty regarding whether the United States Congress will raise the statutory debt limit; our ability to achieve organic loan and deposit growth, and the composition of that growth; changes (or the lack of changes) in interest rates, yield curves and interest rate spread relationships that affect our loan and deposit pricing, including potential continued increases in interest rates in 2023; our ability to identify and enter into agreements to combine with attractive acquisition candidates, finance acquisitions, complete acquisitions after definitive agreements are entered into, and successfully integrate and grow acquired operations; our adoption on January 1, 2023 of ASU 2016-13, and inaccuracy of the assumptions and estimates we make in establishing reserves for credit losses and other estimates; changes in the quality or composition of our loan or investment portfolios, including adverse developments in borrower industries or in the repayment ability of individual borrowers; changes in the quality and composition of, and changes in unrealized losses in, our investment portfolio, including whether we may have to sell securities before their recovery of amortized cost basis and realize losses; the extent of continuing client demand for the high level of personalized service that is a key element of our banking approach as well as our ability to execute our strategy generally; cessation of the one-week and two-month U.S. dollar settings of LIBOR as of December 31, 2021 and the announced cessation of the remaining U.S. dollar LIBOR setting after June 30, 2023, and the related effect on our LIBOR-based financial products and contracts, including, but not limited to, hedging products, debt obligations, investments and loans; • our dependence on our management team, and our ability to attract and retain qualified personnel; the concentration of our business within our geographic areas of operation in Louisiana, Texas and Alabama; concentration of credit exposure; • any deterioration in asset quality and higher loan charge-offs, and the time and effort necessary to resolve problem assets; INVESTAR HOLDING CORPORATION 2

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