Company: BOKF
Filing Date: 2025-03-20
Form Type: DEF 14A
Source: 0000875357-25-000020
Chunk: 3

Company: BOK FINANCIAL CORP
Filing Date: 2025-03-20
Form: DEF 14A
Chunk 3
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, 2025, and (iii) the approval of the named executive officers’ compensation.

Only shareholders of record at the close of business on March 3, 2025 shall be entitled to receive notice of, and to vote at, the annual meeting. A complete list of shareholders entitled to vote will be available for inspection at our offices, Bank of Oklahoma Tower, One Williams Center, Tulsa, OK 74172, and electronically during the annual meeting at www.virtualshareholdermeeting.com/BOKF2025 .

#### BY ORDER OF THE BOARD OF DIRECTORS

#### Tamara Sloan, Secretary

#### March 20, 2025

#### Tulsa, Oklahoma
<div align='center'>BOK Financial Corporation | 4</div>

### PROXY STATEMENT FOR ANNUAL MEETING OF SHAREHOLDERS

#### To be held April 29, 2025

#### General
The enclosed proxy is solicited on behalf of BOK Financial Corporation (the "Company" or "BOK Financial") and its Board of Directors (the "Board") for use at our annual meeting of shareholders. The annual meeting will be held on Tuesday, April 29, 2025, at 2:30 p.m. Central Time via live webcast at www.virtualshareholdermeeting.com/BOKF2025 .

These proxy materials will be mailed on or about March 20, 2025 to holders of record of common stock as of the close of business on March 3, 2025.

#### Voting by Proxy
If you are the “record holder” of your shares (shares owned in your own name and not through a bank or brokerage firm), you may vote by phone, by mail, over the Internet, or in person (via live webcast) at the annual meeting. We encourage you to vote by phone, mail, or on the Internet in advance of the meeting even if you plan to attend the live webcast of the meeting.

If not revoked, your proxy will be voted at the annual meeting in accordance with your instructions marked on the proxy card. If you fail to mark your proxy with instructions, your proxy will be voted in accordance with the recommendations of the Board of Directors: (1) FOR the election of the seventeen (17) nominees for director listed in this Proxy Statement, (2) FOR the ratification of Ernst & Young LLP as the Company’s independent auditor for the fiscal year ending December 31, 2025, and (3) FOR the approval of the named