Columbia Banking closes $2.38B Pacific Premier acquisition; pro forma assets $68.9B

COLUMBIA BANKING SYSTEM, INC.

Total consideration ~$2.38B: 88.9M COLB shares issued, exchange ratio 0.915, based on COLB closing price $26.77.
Pro forma combined assets $68.9B, loans $48.6B, deposits $56.2B as of June 30, 2025.
Pro forma 2024 net income $669M, diluted EPS $2.24; 2025 H1 net income $365M, diluted EPS $1.22.
Preliminary goodwill ~$502M; $185M in merger-related expenses included in pro forma adjustments.
Core deposit intangible of $414M recognized; fair value marks on Pacific Premier loans, securities, and deposits.

item 9.01

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