Namdar Frank 4

What Happened

• Frank Namdar, EVP & Chief Credit Officer of Columbia Banking System, did not execute any open-market sale or purchase. On Jan 20, 2026 he recorded two issuer transactions: 579 shares were forfeited (disposition to issuer) related to performance RSUs, and 1,652 shares were withheld to satisfy tax withholding on vested restricted stock units. The withheld shares were valued at $28.35 each, totaling $46,834; the forfeited shares carried $0 value.

Key Details

• Transaction date: 2026-01-20; Form 4 filed: 2026-01-22 (filed within the typical 2-business-day window).
• Disposition to issuer (code D): 579 shares @ $0.00 — forfeited under performance RSU terms (Footnote F1).
• Tax withholding (code F): 1,652 shares @ $28.35 — shares withheld to cover tax liability on vesting (Footnote F2); total value $46,834.
• Total shares removed from beneficial ownership: 2,231 shares (579 forfeited + 1,652 withheld).
• Shares owned after transaction: not specified in the provided filing excerpt.
• No 10b5-1 plan or late-filing indication in this report.

Context

• These were issuer actions tied to restricted stock units, not open-market trades. The 579-share disposition was a forfeiture because the performance (total shareholder return) target was not met; the 1,652-share action was a standard share-withholding to cover taxes on vested RSUs (a common, administrative event). Such transactions are typically routine and do not reflect a discretionary sale or purchase by the insider.