FirstBank Growth and Efficiency

Use of non-GAAP financial measures This investor presentation contains certain financial measures that are not measures recognized under U.S. generally accepted accounting principles (GAAP) and therefore are considered non-GAAP financial measures. The Company's management uses these non-GAAP financial measures in their analysis of the Company's performance, financial condition and the efficiency of its operations. Management believes that these non-GAAP financial measures provide a greater understanding of ongoing operations and enhance comparability of results with prior periods as well as demonstrate the effects of significant gains and charges in the periods presented. The Company's management also believes that investors find these non-GAAP financial measures useful as they assist investors in understanding our underlying operating performance and the analysis of ongoing operating trends. However, the non-GAAP financial measures discussed herein should not be considered in isolation or as a substitute for the most directly comparable or other financial measures calculated in accordance with GAAP. Moreover, the manner in which we calculate the non-GAAP financial measures discussed herein may differ from that of other companies reporting measures with similar names. You should understand how such other banking organizations calculate their financial measures similar or with names similar to the non-GAAP financial measures we have discussed herein when comparing such non-GAAP financial measures. Below is a listing of the non-GAAP financial measures used in this investor presentation. . Adjusted (pro forma) net income and earnings per share, the core efficiency ratio (tax equivalent basis), the Banking segment core efficiency ratio (tax-equivalent basis), the Mortgage segment core efficiency ratio (tax-equivalent basis), adjusted mortgage contribution, adjusted (pro forma) return on average assets, equity and tangible common equity and pro forma core total revenue are non-GAAP measures that exclude merger-related and conversion expenses, one time IPO equity grants, securities gains (losses), gain (loss) on sale of other real estate owned, and other selected items. The Company's management uses these measures in their analysis of the Company's performance. The Company's management believes these measures provide a greater understanding of ongoing operations and enhance comparability of results with prior periods, as well as demonstrate the effects of significant gains and charges. Tangible book value per common share, tangible common equity to tangible assets, return on average tangible common equity and adjusted return on average tangible common equity are non-GAAP measures that exclude the impact of goodwill and other intangibles and are used by the Company's management to evaluate capital adequacy. Because intangible assets such as goodwill and other intangibles vary extensively from company to company, we believe that the presentation of these non- GAAP financial measures allows investors to more easily compare the Company's capital position to other companies. A reconciliation of these non-GAAP financial measures to the most directly comparable GAAP measures is provided in the Appendix to this investor presentation. FB FirstBank 2

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