GBCI: Other company developments

Item 8.01 Other Events On October 29, 2026, Glacier Bancorp, Inc. (the “Company”) issued a press release, which is included as Exhibit 99.1 to this report, announcing that the Board of Directors of the Company approved a share repurchase program on October 29, 2026, under which the Company’s Chief Executive Officer, Chief Financial Officer, Deputy Chief Financial Officer, and each of them, are authorized to direct the purchase of up to $200,000,000 of the Company’s common stock during the period ending December 31, 2027. The purchases may be made in the open market, in block trades, or in privately negotiated transactions. Subject to the requirements of applicable federal securities laws, the timing and volume of purchases will be in the discretion of the Company’s management. Item 9.01 FINANCIAL STATEMENTS AND EXHIBITS (d) Exhibits 99.1 Press Release dated October 29, 2026 104 Cover Page Interactive Data File (embedded within the Inline XBRL document). SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Dated: October 29, 2026 GLACIER BANCORP, INC. /s/ Randall M. Chesler By: Randall M. Chesler President and Chief Executive Officer