Columbia Banking System, INC Form 4 insider transactions

Columbia Banking System's EVP Chief Marketing Officer, David Moore, reported the forfeiture of 260 shares due to unmet performance targets and the sale of 628 shares for tax obligations.

Columbia Banking System's EVP Chief Risk Officer, Andrew H. Ognall, reported forfeiture of 559 shares due to unmet performance targets and disposition of 1,353 shares for tax obligations.

Columbia Banking System's EVP General Counsel, Kumi Yamamoto Baruffi, reported the forfeiture of 632 performance-based shares and the disposition of 1,508 shares for tax obligations.

Columbia Banking System EVP Drew K. Anderson reported forfeiture of performance-based stock units and shares withheld for tax obligations.

Columbia Banking System's Senior Executive VP, Torran B. Nixon, reported the forfeiture of 1,717 shares due to unmet performance targets and the sale of 3,873 shares for tax obligations.

Columbia Banking System Senior Executive VP Christopher Merrywell reported the forfeiture of 1,560 shares due to unmet performance targets and the withholding of 3,496 shares for tax obligations.

Columbia Banking System CEO Clint Stein forfeited over 6,300 shares due to unmet performance targets and had additional shares withheld for tax obligations.

Columbia Banking System's EVP Chief Risk Officer, Andrew H. Ognall, was granted 21,467 restricted stock units vesting in 2028.

Columbia Banking System Director Luis Machuca acquired 630 shares of phantom stock through a deferred compensation plan.

Columbia Banking System Director Steven Gardner acquired over 584,000 shares of COLB common stock following the acquisition of Pacific Premier Bancorp.

Columbia Banking System Director Jaynie M. Studenmund acquired common stock through a merger conversion and a restricted stock award.

Columbia Banking System Director M. Christian increased his beneficial ownership of COLB common stock through a merger conversion and restricted stock awards.

Columbia Banking System, Inc. Director Luis Machuca acquired 668 shares of deferred compensation phantom stock at a price of $24.83 per share.

Columbia Banking System's EVP CHRO, Judi Giem, was granted 14,359 restricted and performance-based stock units effective July 22, 2025, aligning compensation with future company performance.

Columbia Banking System and Pacific Premier Bancorp have filed a Form 425 to supplement their Joint Proxy Statement/Prospectus, providing additional disclosures in response to shareholder lawsuits and demand letters challenging their proposed merger.

Luis Machuca, a Director at Columbia Banking System, Inc., acquired 708 units of deferred compensation phantom stock on June 2, 2025, as part of a routine compensation plan.

Director Maria M. Pope reported acquiring 3,382 shares of Columbia Banking System, Inc. common stock on May 15, 2025.

Mark A. Finkelstein, a director of Columbia Banking System, Inc., acquired 3,382 shares of common stock on May 15, 2025.

Director Eric Forrest acquired 3,382 shares of Columbia Banking System, Inc. common stock on May 15, 2025.

Director Randal Lee Lund reports acquiring 3,382 shares of Columbia Banking System common stock and disposing of 1,000 shares held indirectly through the Lund Trust.

Luis Machuca, a director of Columbia Banking System, Inc., acquired 3,382 shares of common stock on May 15, 2025.

Director S Mae Fujita Numata acquired 3,382 shares of Columbia Banking System, Inc. common stock on May 15, 2025.

Director John F. Schultz acquired 3,382 shares of Columbia Banking System, Inc. on May 15, 2025.

Director Elizabeth Whitehead Seaton reports acquiring 3,382 shares of Columbia Banking System, Inc. common stock on May 15, 2025.

Director Terry Hilliard C. III of Columbia Banking System, Inc. reports acquisition of 3,382 shares of common stock on May 15, 2025.

Director Anddria Varnado of Columbia Banking System, Inc. reports acquiring 3,382 shares of common stock on May 15, 2025.

Columbia Banking System and Pacific Premier Bancorp are set to merge in a 100% stock transaction, creating a significant regional bank with approximately $70 billion in assets.

Columbia Banking System and Pacific Premier Bancorp have entered into a definitive merger agreement to combine their operations.

Columbia Banking System announces the acquisition of Pacific Premier Bancorp in an all-stock transaction, aiming to create a leading $70 billion regional bank with an expanded footprint across the Western United States.

Columbia Banking System announces its agreement to acquire Pacific Premier Bancorp, significantly strengthening its presence in Southern California and the Southwest.