Namdar Frank, Chief Credit Officer at Columbia Banking System (COLB), has demonstrated a clear accumulation strategy in his insider trading activity, with $1.1 million in total buys outweighing $440,114 in sales across 23 transactions since January 2024. His purchases have been concentrated in COLB stock through open market acquisitions (Code A) and option exercises (Code M), including a $249,982 acquisition on February 18, 2026, and a $224,983 purchase on February 25, 2025. The pattern shows recurring buys supplemented by smaller sales, often following option exercises—such as the March 13, 2026 transaction where he exercised options for $73,969 and sold $35,856 worth of shares.
Frank’s activity skews heavily toward building his position, with only sporadic sales, typically under $75,000, often coded as tax withholding or disposition (Code F). Notably, his largest sales—$70,751 on February 2, 2026, and $50,437 on March 1, 2026—appear to be partial liquidations rather than outright divestments. The absence of recent trades since March 2026 suggests a holding pattern, but his historical bias toward accumulation, particularly in early 2025 and 2026, underscores a long-term commitment to COLB. All transactions revolve exclusively around Columbia Banking System, indicating a focused rather than diversified insider strategy.
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