Columbia Banking System(COLB) - 2024 Q4 - Annual Results

EXHIBIT 99.1 COLUMBIA BANKING SYSTEM, INC. REPORTS FOURTH QUARTER 2024 RESULTS $143 million $150 million $0.68 $0.71 Net income Operating net income Earnings per diluted common share Operating earnings per diluted common share 1 1 CEO Commentary "Our fourth quarter and 2024 results reflect significant strides toward top-quartile performance," said Clint Stein, President and CEO. "Our optimized expense base, improved pricing strategies, and targeted franchise investments have not only strengthened our financ ...