Core Insights - Columbia Banking System (COLB) is undergoing a balance-sheet reset following its acquisition of Pacific Premier, focusing on exiting lower-value "transactional" lending to enhance core, relationship-based production [1][2] - The transition is expected to keep loan growth subdued in the near term but aims to create a cleaner earnings profile as funding, fees, and cost synergies align [1][7] Transactional Loan Management - Columbia Banking is managing down approximately $8 billion of inherited transactional loans, primarily in multifamily credits, with expectations for most of this book to run off or reprice over eight quarters starting in Q3 2025 [2][6] - As the transactional book diminishes, the company is increasing its focus on relationship-driven commercial and industrial (C&I) lending and owner-occupied commercial real estate [3][4] Loan Growth and Profitability - Overall loan growth is anticipated to remain muted until around 2027, with an expected runoff of $1.0-$1.5 billion in transactional loans, while replacement will come from higher-yield core lending [6][7] - The shift in loan mix is expected to support improved profitability, as core lending is projected to yield better returns than the inherited transactional balances [7][10] Key Metrics to Monitor - Investors should track the pace of transactional runoff against core growth, with management outlining the timeline for the $8 billion legacy book [8] - Net interest margin (NIM) improved to 4.06% in Q4 2025 from 3.64% in Q4 2024, with expectations for NIM to trend higher throughout 2026 [9][10] - Evidence of operating leverage and cost savings from the Pacific Premier acquisition is crucial, with targeted annualized savings of $127 million, of which $63 million has been realized by the end of 2025 [10]