GLACIER BANCORP, INC.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant To Section 14(a) of

the Securities Exchange Act of 1934 (Amendment No. __ )

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Filed by a Party other than the Registrant☐

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☐ Preliminary Proxy Statement

☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

☒ Definitive Proxy Statement

☐ Definitive Additional Materials

☐Soliciting Material under §240.14a-12

GLACIER BANCORP, INC.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

☒ No fee required

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☐ Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11

GLACIER BANCORP, INC.

49 Commons Loop

Kalispell, Montana 59901

NOTICE OF ANNUAL MEETING OF SHAREHOLDERS

to Be Held April 29, 2026

9:00 a.m. Mountain Time

To the Shareholders of Glacier Bancorp, Inc.:

We cordially invite you to attend the 2026 Annual Meeting of Shareholders of Glacier Bancorp, Inc. (the “Company”), to be conducted on April 29, 2026, at 9:00 a.m. Mountain Time (the “Annual Meeting”) at The Hilton Garden Inn, 1840 Highway 93 South, Kalispell, Montana. The purpose of the Annual Meeting is to vote on the following proposals:

1. To elect ten directors to serve on the Company’s Board of Directors until the 2027 annual meeting of shareholders;

2. To vote on an advisory (non-binding) resolution to approve the compensation of the Company’s Named Executive Officers;

3. To ratify the appointment of Forvis Mazars, LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026; and

4. To consider such other matters as may properly come before the meeting or any adjournments or postponements.

If you were a shareholder of record or beneficial owner on February 26, 2026, you may vote on the proposals presented at the Annual Meeting. We encourage you to promptly vote by phone or via the Internet, or complete and return the enclosed proxy card or voting instruction form, to ensure that your shares will be represented and voted at the meeting in accordance with your instructions. If you attend the meeting in person, you generally will be able to withdraw your proxy and vote your shares.

Further information regarding voting rights and the business to be transacted at the Annual Meeting is included in the accompanying Proxy Statement. The directors, officers, and employees who serve you genuinely appreciate your continued interest and support as a shareholder in the affairs of the Company and in its growth and development.

YOUR VOTE IS IMPORTANTWhether or not you plan to attend the Annual Meeting, please vote promptly by phone or via the Internet, or sign and date your proxy card or voting instruction form and return it in the enclosed postage prepaid envelope. You do not need to retain the proxy card or voting instruction form in order to be admitted to the Annual Meeting. If you attend the Annual Meeting, you may vote either in person or by proxy. You may revoke any proxy that you have given either in writing or in person at any time prior to the proxy’s exercise.

Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to Be Held on April 29, 2026. A copy of this Proxy Statement and the Annual Report to Shareholders for the year ended December 31, 2025, which includes our Form 10-K, are available at www.proxyvote.com.

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GLACIER BANCORP, INC.

49 Commons Loop

Kalispell, Montana 59901

(406) 756-4200

PROXY STATEMENT

Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to Be Held on April 29, 2026: This Proxy Statement and the Annual Report to Shareholders for the year ended December 31, 2025, which includes our Form 10-K, are available at www.proxyvote.com.

In this Proxy Statement, the terms “we,” “us” and “our” refer to Glacier Bancorp, Inc.