Columbia Banking (COLB) EVP Judi Giem Converts 2,393 RSUs

What Happened

• Judi Giem, Executive Vice President & CHRO of Columbia Banking System, converted 2,393 restricted stock units (RSUs) into common shares on August 14, 2026. The filing lists a per-share reference price of $32.69, valuing those shares at about $78,227.
• To cover tax withholding, 643 shares were surrendered at the same $32.69 reference price, equal to roughly $21,020. The Form 4 also includes a derivative-related disposition line for 2,393 shares reported with an N/A price (a common reporting format when converting awards).

Key Details

• Transaction date: August 14, 2026. Filing date: August 18, 2026 (timely filed).
• Conversion (code M): 2,393 shares @ $32.69 = ~$78,227 (acquired).
• Tax withholding (code F): 643 shares @ $32.69 = ~$21,020 (disposed to satisfy tax liability).
• Shares owned after the transaction: not disclosed in the provided filing details.
• Footnote: These shares come from a July 22, 2025 grant of 7,179 RSUs that vest in three annual installments beginning August 14, 2026.
• Transaction codes: M = exercise/conversion of a derivative (here, RSU conversion); F = payment of exercise price or tax withholding.

Context

• This was a routine vesting/conversion of RSUs and a standard tax withholding; it is not an open-market purchase or sale. Such vesting events are common compensation-related transactions and do not necessarily signal insider market sentiment.
• For retail investors, purchases (open-market buys) tend to be more informative than vesting/conversion events; this filing primarily documents compensation vesting and tax withholding.