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COLB submitted a Form 144 notifying a proposed sale of 3,872 shares of Common Stock. The filing lists the shares as restricted stock vesting under compensation arrangements, with vesting lots of 1,094, 1,484, 696, and 598 shares tied to dates from 01/01/2024 through 02/15/2026.
The notice names Fidelity Brokerage Services LLC and records a transaction date of 06/08/2026 on the NASDAQ entry. The filing advises these restricted shares are the securities proposed for sale under the Form 144 notice.
Varnado Anddria reported acquisition or exercise transactions in this Form 4 filing.
COLUMBIA BANKING SYSTEM, INC. director Anddria Varnado received a grant of 3,949 shares of Common Stock on May 14, 2026. The shares were awarded at a reported price of $0.00 per share, indicating a compensation-related equity award rather than an open-market purchase. Following this grant, Varnado directly holds 30,894 shares of the company’s common stock.
Terry Hilliard C. III reported acquisition or exercise transactions in this Form 4 filing.
COLUMBIA BANKING SYSTEM, INC. director Terry C. Hilliard III received a grant of 3,949 shares of Common Stock on May 14, 2026. The award was recorded at a price of $0.00 per share, indicating a compensation-related stock grant rather than an open-market purchase. Following this grant, Hilliard directly holds 55,514 shares of Common Stock.
STUDENMUND JAYNIE M reported acquisition or exercise transactions in this Form 4 filing.
Columbia Banking System director Jaynie M. Studenmund reported a compensation-related stock grant. She received 3,949 shares of Columbia Banking System common stock as a grant or award at a stated price of $0.00 per share, increasing her direct holdings to 21,807 shares. A separate line shows 3,843 shares held indirectly through an IRA, which reflects an existing position rather than a new market transaction.
SEATON ELIZABETH WHITEHEAD reported acquisition or exercise transactions in this Form 4 filing.
COLUMBIA BANKING SYSTEM, INC. director Elizabeth Whitehead Seaton reported a routine equity grant and a change in how some shares are held. She received 3,949 shares of common stock as a grant, bringing her directly held shares to 3,949. A footnote explains that 32,566 shares previously reported as directly owned are now indirectly beneficially owned through a trust.
SCHULTZ JOHN F reported acquisition or exercise transactions in this Form 4 filing.
COLUMBIA BANKING SYSTEM, INC. director John F. Schultz received a grant of 3,949 shares of common stock on May 14, 2026, recorded at a price of $0.0000 per share, reflecting a stock-based award rather than a market purchase.
After this award, Schultz directly holds 50,384 shares of common stock. A footnote explains that his beneficial ownership totals were also adjusted to correct a prior reporting error, because a disposition of 3,000 shares reported on August 29, 2024 had not been included in subsequent ownership figures.
Columbia Banking System director Mitchell M. Christian received a grant of 3,949 shares of Common Stock on May 14, 2026 as a stock award, with no cash paid per share. This is a compensation-related acquisition, not an open-market trade. After the award, he directly holds 41,909 shares.
MACHUCA LUIS reported acquisition or exercise transactions in this Form 4 filing.
Columbia Banking System director Luis Machuca received a grant of 3,949 shares of Common Stock on May 14, 2026. The shares were awarded at a price of $0.00 per share, indicating a compensation-related grant rather than a market purchase. Following this award, Machuca directly holds 29,953 shares of Columbia Banking System common stock.
COLUMBIA BANKING SYSTEM, INC. director Randal Lee Lund reported an acquisition of company stock as compensation. He received a grant of 3,949 shares of common stock at $0.0000 per share, bringing his direct holdings to 27,663 shares. He also reports 1,000 shares held indirectly through a family trust.
Forrest Eric reported acquisition or exercise transactions in this Form 4 filing.
Columbia Banking System director Eric Forrest received a stock grant. He was awarded 3,949 shares of common stock on May 14, 2026 at no cost, classified as a grant or award. Following this award, he directly owns 36,351 shares of Columbia Banking System common stock.