Columbia Banking System Appoints New Director Simone Lagomarsino

What Happened

• Columbia Banking System, Inc. announced on July 28, 2026 that its board appointed Simone Lagomarsino to the Company’s Board of Directors, effective September 1, 2026. Her appointment to the Columbia Bank board is subject to approval by the Oregon Department of Consumer and Financial Services Division of Financial Regulation.
• Ms. Lagomarsino will serve as an audit committee financial expert and will join the Company’s Audit Committee and Enterprise Risk Management Committee.

Key Details

• Appointment effective date: September 1, 2026; announcement filed July 28, 2026; press release issued July 30, 2026.
• Director compensation: prorated annual cash retainer of $95,000 and an annual equity retainer of $115,000 (restricted stock vesting in full on May 14, 2027).
• Prior experience: President and director of First Foundation Inc. (July 2024–Apr 1, 2026); President & CEO of Luther Burbank Corporation and Luther Burbank Savings (Jan 2019–Feb 2024). Served on boards of the Federal Home Loan Bank of San Francisco (2013–2024) and the Federal Reserve Bank of San Francisco (2022–July 2024).
• Personal/compensation note: age 64; holds a BA in Economics and an MBA in Finance. She receives annual deferred compensation payments of $100,000 (payments initiated in 2017 and continuing through 2032) tied to a plan from an acquired bank that became part of Columbia in 2025.

Why It Matters

• The appointment adds an experienced banking executive and an audit committee financial expert to Columbia’s board, strengthening oversight of risk, audit and financial reporting.
• Director pay and the equity award terms are disclosed, so investors know the expected incremental non-employee director cost and the timing of equity vesting.
• The filing notes no family ties or special arrangements related to her selection, but discloses ongoing deferred payments (annual $100,000) from prior employer arrangements that will continue through 2032.