Exhibit 99.1 NEWS RELEASE CONTACT: MARK J. GRESCOVICH, PRESIDENT & CEO ROBERT G. BUTTERFIELD, CFO (509) 527-3636 Banner Corporation Reports Net Income of 45.2Million,or1.30 Per Diluted Share, for Third Quarter 2024; Declares Quarterly Cash Dividend of 0.48PerShareWallaWalla,WA−October16,2024−BannerCorporation(NASDAQGSM:BANR)("Banner"),theparentcompanyofBannerBank,todayreportednetincomeof45.2 million, or 1.30perdilutedshare,forthethirdquarterof2024,comparedto3 ...