Glacier Bancorp Inc

Item 8.01 Other Events On August 27, 2026, the Board of Directors (the “Board”) of Glacier Bancorp, Inc. (the “Company”), appointed Byron Pollan to serve as Senior Vice President in the newly created position of Deputy Chief Financial Officer of the Company and Glacier Bank, effective September 1, 2026. Upon Ron Copher’s previously announced retirement, now planned for mid-2027, Mr. Pollan will become an Executive Vice President and Chief Financial Officer of the Company and Glacier Bank, succeeding Mr. Copher. Mr. Copher will remain with the Company in an advisory role for a period of time to support a smooth transition. Mr. Pollan brings 27 years of experience in banking and financial services. He has served as Senior Vice President and Treasurer of the Company since January 2017. Prior to joining the Company, he served as Treasurer of CIT Bank, where he established the Treasury Department and Chaired the ALCO Committee. Earlier in his career, Mr. Pollan was a portfolio manager at Freddie Mac. He is a 1999 graduate of Brigham Young University, where he earned a Bachelor of Science degree in International Finance, and has been a CFA® charterholder since 2003. Cautionary Note Regarding Forward-Looking Statements This current report on Form 8-K contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements can be identified by words such as “estimate,” “anticipate,” “expect,” “will,” and similar references to future periods. Such forward-looking statements include but are not limited to statements regarding the Company’s expectations concerning continued and future service arrangements with Messrs. Copher and Pollan. Readers are cautioned not to place undue reliance on the forward-looking statements, which speak only as of the date on which they are made and reflect management’s current expectations and beliefs. The Company undertakes no obligation to publicly revise or update the forward-looking statements to reflect events or circumstances that arise after the date of this report. For more information, see the risk factors described in the Company’s Annual Report on Form 10-K, Quarterly Reports on Form 10-Q and other filings with the Securities and Exchange Commission from time to time.

Item 7.01 Regulation FD Disclosure A copy of the press release announcing Mr. Pollan’s appointment as Senior Vice President and Deputy Chief Financial Offer is furnished as Exhibit 99.1 to this report and incorporated by reference.