BANNER CORP

Banner is a bank holding company registered with the Federal Reserve. Bank holding companies are subject to capital adequacy requirements of the Federal Reserve under the Bank Holding Company Act of 1956, as amended, and the regulations of the Federal Reserve. The Bank, as a state-chartered, federally insured commercial bank, is subject to the capital requirements established by the FDIC.

The capital adequacy requirements are quantitative measures established by regulation that require Banner and the Bank to maintain minimum amounts and ratios of capital. The Federal Reserve requires Banner to maintain capital adequacy that generally parallels the FDIC requirements. The FDIC requires the Bank to maintain minimum capital ratios of total capital, tier 1 capital, and common equity tier 1 capital to risk-weighted assets as well as tier 1 leverage capital to average assets. In addition to the minimum capital ratios, the Bank must to maintain a capital conservation buffer consisting of additional common equity tier 1 capital greater than 2.5% of risk-weighted assets above the required minimum levels in order to avoid limitations on paying dividends, engaging in share repurchases, and paying discretionary bonuses. At March 31, 2025, Banner and the Bank each exceeded all regulatory capital requirements to be “well capitalized.”

The actual regulatory capital ratios calculated for Banner Corporation and Banner Bank as of March 31, 2025, along with the minimum capital amounts and ratios, were as follows (dollars in thousands):