BOKF

bokf-202601160000875357false00008753572026-01-162026-01-16

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): January 16, 2026

Commission File No. 001-37811

BOK FINANCIAL CORP

(Exact name of registrant as specified in its charter)

Oklahoma 73-1373454 (State or other jurisdiction of Incorporation or Organization) (IRS Employer Identification No.)

Bank of Oklahoma Tower Boston Avenue at Second Street Tulsa,Oklahoma 74192 (Address of Principal Executive Offices) (Zip Code)

(918) 588-6000 (Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changes since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425).

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12).

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)).

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)).

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading SymbolName of each exchange on which registered Common Stock, par value $0.00006 per shareBOKFNasdaq Stock Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐ Emerging growth company If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 2.02. Results of Operations and Financial Condition.

On January 16, 2026, BOK Financial Corporation (“BOK Financial”) issued a press release announcing its financial results for the three months and year ended December 31, 2025 (“Press Release”). The full text of the Press Release is attached as Exhibit 99.1(a) to this report and is incorporated herein by reference. On January 16, 2026, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three months and year ended December 31, 2025 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.1(b) to this report and is incorporated herein by reference.

ITEM 7.01. Regulation FD Disclosure.

On January 16, 2026, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three months and year ended December 31, 2025 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.2(a) to this report and is incorporated herein by reference.

ITEM 9.01. Financial Statements and Exhibits.

(d)    Exhibits

99.1    Text of Press Release, dated January 16, 2026, titled "BOK Financial Corporation reports annual earnings of $578 million, or a record $9.17 per share, and quarterly earnings of $177 million, or a record $2.89 per share, in the fourth quarter" and Financial Information for the Three Months and Year Ended December 31, 2025.

99.2    Earnings conference call presentation, dated January 20, 2026, titled “Q4 Earnings Conference Call" for the Three Months and Year Ended December 31, 2025.

104    Cover Page Interactive Data File (embedded within the Inline XBRL document).

Signature

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.

BOK FINANCIAL CORPORATION

By: /s/ Martin E. Grunst Martin E. Grunst Executive Vice President Chief Financial Officer Date: January 16, 2026

bokf-202510200000875357false00008753572025-10-202025-10-20

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 20, 2025

Commission File No. 001-37811

BOK FINANCIAL CORP

(Exact name of registrant as specified in its charter)

Oklahoma 73-1373454 (State or other jurisdiction of Incorporation or Organization) (IRS Employer Identification No.)

Bank of Oklahoma Tower Boston Avenue at Second Street Tulsa,Oklahoma 74192 (Address of Principal Executive Offices) (Zip Code)

(918) 588-6000 (Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changes since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425).

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12).

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)).

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)).

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading SymbolName of each exchange on which registered Common Stock, par value $0.00006 per shareBOKFNasdaq Stock Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐ Emerging growth company If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 2.02. Results of Operations and Financial Condition.

On October 20, 2025, BOK Financial Corporation (“BOK Financial”) issued a press release announcing its financial results for the three and nine months ended September 30, 2025 (“Press Release”). The full text of the Press Release is attached as Exhibit 99.1(a) to this report and is incorporated herein by reference. On October 20, 2025, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three and nine months ended September 30, 2025 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.1(b) to this report and is incorporated herein by reference.

ITEM 7.01. Regulation FD Disclosure.

On October 20, 2025, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three and nine months ended September 30, 2025 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.2(a) to this report and is incorporated herein by reference.

ITEM 9.01. Financial Statements and Exhibits.

(d)    Exhibits

99.1    Text of Press Release, dated October 20, 2025, titled "BOK Financial Corporation reports quarterly earnings of $141 million, or $2.22 per share, in the third quarter" and Financial Information for the Three and Nine Months Ended September 30, 2025.

99.2    Earnings conference call presentation, dated October 21, 2025, titled “Q3 Earnings Conference Call" for the Three and Nine Months Ended September 30, 2025.

104    Cover Page Interactive Data File (embedded within the Inline XBRL document).

Signature

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.

BOK FINANCIAL CORPORATION

By: /s/ Martin E. Grunst Martin E. Grunst Executive Vice President Chief Financial Officer Date: October 20, 2025

bokf-202507210000875357false00008753572025-07-212025-07-21

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): July 21, 2025

Commission File No. 001-37811

BOK FINANCIAL CORP

(Exact name of registrant as specified in its charter)

Oklahoma 73-1373454 (State or other jurisdiction of Incorporation or Organization) (IRS Employer Identification No.)

Bank of Oklahoma Tower Boston Avenue at Second Street Tulsa,Oklahoma 74192 (Address of Principal Executive Offices) (Zip Code)

(918) 588-6000 (Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changes since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425).

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12).

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)).

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)).

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading SymbolName of each exchange on which registered Common Stock, par value $0.00006 per shareBOKFNasdaq Stock Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐ Emerging growth company If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 2.02. Results of Operations and Financial Condition.

On July 21, 2025, BOK Financial Corporation (“BOK Financial”) issued a press release announcing its financial results for the three and six months ended June 30, 2025 (“Press Release”). The full text of the Press Release is attached as Exhibit 99.1(a) to this report and is incorporated herein by reference. On July 21, 2025, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three and six months ended June 30, 2025 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.1(b) to this report and is incorporated herein by reference.

ITEM 7.01. Regulation FD Disclosure.

On July 21, 2025, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three and six months ended June 30, 2025 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.2(a) to this report and is incorporated herein by reference.

ITEM 9.01. Financial Statements and Exhibits.

(d)    Exhibits

99.1    Text of Press Release, dated July 21, 2025, titled "BOK Financial Corporation reports quarterly earnings of $140 million, or $2.19 per share, in the second quarter" and Financial Information for the Three and Six Months Ended June 30, 2025.

99.2    Earnings conference call presentation, dated July 22, 2025, titled “Q2 Earnings Conference Call" for the Three and Six Months Ended June 30, 2025.

104    Cover Page Interactive Data File (embedded within the Inline XBRL document).

Signature

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.

BOK FINANCIAL CORPORATION

By: /s/ Martin E. Grunst Martin E. Grunst Executive Vice President Chief Financial Officer Date: July 21, 2025

bokf-202504210000875357false00008753572025-04-212025-04-21

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): April 21, 2025

Commission File No. 001-37811

BOK FINANCIAL CORP

(Exact name of registrant as specified in its charter)

Oklahoma 73-1373454 (State or other jurisdiction of Incorporation or Organization) (IRS Employer Identification No.)

Bank of Oklahoma Tower Boston Avenue at Second Street Tulsa,Oklahoma 74192 (Address of Principal Executive Offices) (Zip Code)

(918) 588-6000 (Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changes since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425).

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12).

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)).

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)).

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading SymbolName of each exchange on which registered Common Stock, par value $0.00006 per shareBOKFNasdaq Stock Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐ Emerging growth company If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 2.02. Results of Operations and Financial Condition.

On April 21, 2025, BOK Financial Corporation (“BOK Financial”) issued a press release announcing its financial results for the three months ended March 31, 2025 (“Press Release”). The full text of the Press Release is attached as Exhibit 99.1(a) to this report and is incorporated herein by reference. On April 21, 2025, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three months ended March 31, 2025 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.1(b) to this report and is incorporated herein by reference.

ITEM 7.01. Regulation FD Disclosure.

On April 21, 2025, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three months ended March 31, 2025 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.2(a) to this report and is incorporated herein by reference.

ITEM 9.01. Financial Statements and Exhibits.

(d)    Exhibits

99.1    Text of Press Release, dated April 21, 2025, titled "BOK Financial Corporation reports quarterly earnings of $120 million, or $1.86 per share, in the first quarter" and Financial Information for the Three Months Ended March 31, 2025.

99.2    Earnings conference call presentation, dated April 22, 2025, titled “Q1 Earnings Conference Call" for the Three Months Ended March 31, 2025.

104    Cover Page Interactive Data File (embedded within the Inline XBRL document).

Signature

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.

BOK FINANCIAL CORPORATION

By: /s/ Martin E. Grunst Martin E. Grunst Executive Vice President Chief Financial Officer Date: April 21, 2025

bokf-202501170000875357false00008753572025-01-172025-01-17

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): January 17, 2025

Commission File No. 001-37811

BOK FINANCIAL CORP

(Exact name of registrant as specified in its charter)

Oklahoma 73-1373454 (State or other jurisdiction of Incorporation or Organization) (IRS Employer Identification No.)

Bank of Oklahoma Tower Boston Avenue at Second Street Tulsa,Oklahoma 74192 (Address of Principal Executive Offices) (Zip Code)

(918) 588-6000 (Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changes since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425).

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12).

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)).

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)).

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading SymbolName of each exchange on which registered Common Stock, par value $0.00006 per shareBOKFNasdaq Stock Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐ Emerging growth company If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 2.02. Results of Operations and Financial Condition.

On January 17, 2025, BOK Financial Corporation (“BOK Financial”) issued a press release announcing its financial results for the three months and year ended December 31, 2024 (“Press Release”). The full text of the Press Release is attached as Exhibit 99.1(a) to this report and is incorporated herein by reference. On January 17, 2025, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three months and year ended December 31, 2024 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.1(b) to this report and is incorporated herein by reference.

ITEM 7.01. Regulation FD Disclosure.

On January 17, 2025, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three months and year ended December 31, 2024 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.2(a) to this report and is incorporated herein by reference.

ITEM 9.01. Financial Statements and Exhibits.

(d)    Exhibits

99.1    Text of Press Release, dated January 17, 2025, titled "BOK Financial Corporation reports annual earnings of $524 million, or $8.14 per share, and quarterly earnings of $136 million, or $2.12 per share, in the fourth quarter" and Financial Information for the Three Months and Year Ended December 31, 2024.

99.2    Earnings conference call presentation, dated January 21, 2025, titled “Q4 Earnings Conference Call" for the Three Months and Year Ended December 31, 2024.

104    Cover Page Interactive Data File (embedded within the Inline XBRL document).

Signature

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.

BOK FINANCIAL CORPORATION

By: /s/ Martin E. Grunst Martin E. Grunst Executive Vice President Chief Financial Officer Date: January 17, 2025

bokf-202410210000875357false00008753572024-10-212024-10-21

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 21, 2024

Commission File No. 001-37811

BOK FINANCIAL CORP

(Exact name of registrant as specified in its charter)

Oklahoma 73-1373454 (State or other jurisdiction of Incorporation or Organization) (IRS Employer Identification No.)

Bank of Oklahoma Tower Boston Avenue at Second Street Tulsa,Oklahoma 74192 (Address of Principal Executive Offices) (Zip Code)

(918) 588-6000 (Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changes since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425).

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12).

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)).

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)).

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading SymbolName of each exchange on which registered Common Stock, par value $0.00006 per shareBOKFNasdaq Stock Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐ Emerging growth company If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 2.02. Results of Operations and Financial Condition.

On October 21, 2024, BOK Financial Corporation (“BOK Financial”) issued a press release announcing its financial results for the three and nine months ended September 30, 2024 (“Press Release”). The full text of the Press Release is attached as Exhibit 99.1(a) to this report and is incorporated herein by reference. On October 21, 2024, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three and nine months ended September 30, 2024 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.1(b) to this report and is incorporated herein by reference.

ITEM 7.01. Regulation FD Disclosure.

On October 21, 2024, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three and nine months ended September 30, 2024 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.2(a) to this report and is incorporated herein by reference.

ITEM 9.01. Financial Statements and Exhibits.

(d)    Exhibits

99.1    Text of Press Release, dated October 21, 2024, titled "BOK Financial Corporation Reports Quarterly Earnings of $140 million, or $2.18 Per Share, in the Third Quarter" and Financial Information for the Three and Nine Months Ended September 30, 2024.

99.2    Earnings conference call presentation, dated October 22, 2024 titled “Q3 Earnings Conference Call" for the Three and Nine Months Ended September 30, 2024.

104    Cover Page Interactive Data File (embedded within the Inline XBRL document).

Signature

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.

BOK FINANCIAL CORPORATION

By: /s/ Martin E. Grunst Martin E. Grunst Executive Vice President Chief Financial Officer Date: October 21, 2024

bokf-202407220000875357false00008753572024-07-222024-07-22

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): July 22, 2024

Commission File No. 001-37811

BOK FINANCIAL CORP

(Exact name of registrant as specified in its charter)

Oklahoma 73-1373454 (State or other jurisdiction of Incorporation or Organization) (IRS Employer Identification No.)

Bank of Oklahoma Tower Boston Avenue at Second Street Tulsa,Oklahoma 74192 (Address of Principal Executive Offices) (Zip Code)

(918) 588-6000 (Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changes since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425).

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12).

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)).

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)).

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading SymbolName of each exchange on which registered Common Stock, par value $0.00006 per shareBOKFNasdaq Stock Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐ Emerging growth company If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 2.02. Results of Operations and Financial Condition.

On July 22, 2024, BOK Financial Corporation (“BOK Financial”) issued a press release announcing its financial results for the three and six months ended June 30, 2024 (“Press Release”). The full text of the Press Release is attached as Exhibit 99.1(a) to this report and is incorporated herein by reference. On July 22, 2024, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three and six months ended June 30, 2024 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.1(b) to this report and is incorporated herein by reference.

ITEM 7.01. Regulation FD Disclosure.

On July 22, 2024, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three and six months ended June 30, 2024 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.2(a) to this report and is incorporated herein by reference.

ITEM 9.01. Financial Statements and Exhibits.

(d)    Exhibits

99.1    Text of Press Release, dated July 22, 2024, titled "BOK Financial Corporation Reports Quarterly Earnings of $164 million, or $2.54 Per Share, in the Second Quarter" and Financial Information for the Three and Six Months Ended June 30, 2024.

99.2    Earnings conference call presentation, dated June 30, 2024 titled “Q2 Earnings Conference Call" for the Three and Six Months Ended June 30, 2024.

104    Cover Page Interactive Data File (embedded within the Inline XBRL document).

Signature

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.

BOK FINANCIAL CORPORATION

By: /s/ Martin E. Grunst Martin E. Grunst Executive Vice President Chief Financial Officer Date: July 22, 2024

bokf-202404240000875357false00008753572024-04-242024-04-24

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): April 24, 2024

Commission File No. 001-37811

BOK FINANCIAL CORP

(Exact name of registrant as specified in its charter)

Oklahoma 73-1373454 (State or other jurisdiction of Incorporation or Organization) (IRS Employer Identification No.)

Bank of Oklahoma Tower Boston Avenue at Second Street Tulsa,Oklahoma 74192 (Address of Principal Executive Offices) (Zip Code)

(918) 588-6000 (Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changes since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425).

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12).

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)).

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)).

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading SymbolName of each exchange on which registered Common Stock, par value $0.00006 per shareBOKFNasdaq Stock Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐ Emerging growth company If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 2.02. Results of Operations and Financial Condition.

On April 24, 2024, BOK Financial Corporation (“BOK Financial”) issued a press release announcing its financial results for the three months ended March 31, 2024 (“Press Release”). The full text of the Press Release is attached as Exhibit 99.1(a) to this report and is incorporated herein by reference. On April 24, 2024, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three months ended March 31, 2024 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.1(b) to this report and is incorporated herein by reference.

ITEM 7.01. Regulation FD Disclosure.

On April 24, 2024, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three months ended March 31, 2024 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.2(a) to this report and is incorporated herein by reference.

ITEM 9.01. Financial Statements and Exhibits.

(d)    Exhibits

99.1    Text of Press Release, dated April 24, 2024, titled "BOK Financial Corporation Reports Quarterly Earnings of $84 million or $1.29 Per Share in the First Quarter" and Financial Information for the Three Months Ended March 31, 2024.

99.2    Earnings conference call presentation, dated April 24, 2024 titled “Q1 Earnings Conference Call" for the Three Months Ended March 31, 2024.

104    Cover Page Interactive Data File (embedded within the Inline XBRL document).

Signature

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.

BOK FINANCIAL CORPORATION

By: /s/ Martin E. Grunst Martin E. Grunst Executive Vice President Chief Financial Officer Date: April 24, 2024

bokf-202401240000875357false00008753572024-01-242024-01-24

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): January 24, 2024

Commission File No. 001-37811

BOK FINANCIAL CORP

(Exact name of registrant as specified in its charter)

Oklahoma 73-1373454 (State or other jurisdiction of Incorporation or Organization) (IRS Employer Identification No.)

Bank of Oklahoma Tower Boston Avenue at Second Street Tulsa,Oklahoma 74192 (Address of Principal Executive Offices) (Zip Code)

(918) 588-6000 (Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changes since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425).

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12).

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)).

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)).

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading SymbolName of each exchange on which registered Common Stock, par value $0.00006 per shareBOKFNasdaq Stock Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐ Emerging growth company If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 2.02. Results of Operations and Financial Condition.

On January 24, 2024, BOK Financial Corporation (“BOK Financial”) issued a press release announcing its financial results for the three months and year ended December 31, 2023 (“Press Release”). The full text of the Press Release is attached as Exhibit 99.1(a) to this report and is incorporated herein by reference. On January 24, 2024, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three months and year ended December 31, 2023 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.1(b) to this report and is incorporated herein by reference.

ITEM 7.01. Regulation FD Disclosure.

On January 24, 2024, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three months and year ended December 31, 2023 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.2(a) to this report and is incorporated herein by reference.

ITEM 9.01. Financial Statements and Exhibits.

(d)    Exhibits

99.1    Text of Press Release, dated January 24, 2024, titled "BOK Financial Corporation Reports Annual Earnings of $531 million or $8.02 Per Share and Quarterly Earnings of $83 million or $1.26 Per Share in the Fourth Quarter" and Financial Information for the Three Months and Year Ended December 31, 2023.

99.2    Earnings conference call presentation, dated January 24, 2024 titled “Q4 Earnings Conference Call" for the Three Months and Year Ended December 31, 2023.

104    Cover Page Interactive Data File (embedded within the Inline XBRL document).

Signature

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.

BOK FINANCIAL CORPORATION

By: /s/ Martin E. Grunst Martin E. Grunst Executive Vice President Chief Financial Officer Date: January 24, 2024

bokf-202310250000875357false00008753572023-10-252023-10-25

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 25, 2023

Commission File No. 001-37811

BOK FINANCIAL CORP

(Exact name of registrant as specified in its charter)

Oklahoma 73-1373454 (State or other jurisdiction of Incorporation or Organization) (IRS Employer Identification No.)

Bank of Oklahoma Tower Boston Avenue at Second Street Tulsa,Oklahoma 74192 (Address of Principal Executive Offices) (Zip Code)

(918) 588-6000 (Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changes since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425).

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12).

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)).

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)).

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading SymbolName of each exchange on which registered Common Stock, par value $0.00006 per shareBOKFNasdaq Stock Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐ Emerging growth company If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 2.02. Results of Operations and Financial Condition.

On October 25, 2023, BOK Financial Corporation (“BOK Financial”) issued a press release announcing its financial results for the three and nine months ended September 30, 2023 (“Press Release”). The full text of the Press Release is attached as Exhibit 99.1(a) to this report and is incorporated herein by reference. On October 25, 2023, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three and nine months ended September 30, 2023 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.1(b) to this report and is incorporated herein by reference.

ITEM 7.01. Regulation FD Disclosure.

On October 25, 2023, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three and nine months ended September 30, 2023 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.2(a) to this report and is incorporated herein by reference.

ITEM 9.01. Financial Statements and Exhibits.

(d)    Exhibits

99.1    Text of Press Release, dated October 25, 2023, titled "BOK Financial Corporation Reports Quarterly Earnings of $134 million or $2.04 Per Share in the Third Quarter" and Financial Information for the Three and Nine Months Ended September 30, 2023.

99.2    Earnings conference call presentation, dated October 25, 2023 titled “Q3 Earnings Conference Call" for the Three and Nine Months Ended September 30, 2023.

104    Cover Page Interactive Data File (embedded within the Inline XBRL document).

Signature

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.

BOK FINANCIAL CORPORATION

By: /s/ Martin E. Grunst Martin E. Grunst Executive Vice President Chief Financial Officer Date: October 25, 2023

bokf-202307260000875357false00008753572023-07-262023-07-26

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): July 26, 2023

Commission File No. 001-37811

BOK FINANCIAL CORP

(Exact name of registrant as specified in its charter)

Oklahoma 73-1373454 (State or other jurisdiction of Incorporation or Organization) (IRS Employer Identification No.)

Bank of Oklahoma Tower Boston Avenue at Second Street Tulsa,Oklahoma 74192 (Address of Principal Executive Offices) (Zip Code)

(918) 588-6000 (Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changes since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425).

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12).

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)).

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)).

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading SymbolName of each exchange on which registered Common Stock, par value $0.00006 per shareBOKFNasdaq Stock Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐ Emerging growth company If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 2.02. Results of Operations and Financial Condition.

On July 26, 2023, BOK Financial Corporation (“BOK Financial”) issued a press release announcing its financial results for the three and six months ended June 30, 2023 (“Press Release”). The full text of the Press Release is attached as Exhibit 99.1(a) to this report and is incorporated herein by reference. On July 26, 2023, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three and six months ended June 30, 2023 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.1(b) to this report and is incorporated herein by reference.

ITEM 7.01. Regulation FD Disclosure.

On July 26, 2023, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three and six months ended June 30, 2023 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.2(a) to this report and is incorporated herein by reference.

ITEM 9.01. Financial Statements and Exhibits.

(d)    Exhibits

99.1    Text of Press Release, dated July 26, 2023, titled "BOK Financial Corporation Reports Quarterly Earnings of $151 million or $2.27 Per Share in the Second Quarter" and Financial Information for the Three and Six Months Ended June 30, 2023.

99.2    Earnings conference call presentation, dated July 26, 2023 titled “Q2 Earnings Conference Call" for the Three and Six Months Ended June 30, 2023.

104    Cover Page Interactive Data File (embedded within the Inline XBRL document).

Signature

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.

BOK FINANCIAL CORPORATION

By: /s/ Martin E. Grunst Martin E. Grunst Executive Vice President Chief Financial Officer Date: July 26, 2023

bokf-202304260000875357false00008753572023-04-262023-04-26

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): April 26, 2023

Commission File No. 001-37811

BOK FINANCIAL CORP

(Exact name of registrant as specified in its charter)

Oklahoma 73-1373454 (State or other jurisdiction of Incorporation or Organization) (IRS Employer Identification No.)

Bank of Oklahoma Tower Boston Avenue at Second Street Tulsa,Oklahoma 74192 (Address of Principal Executive Offices) (Zip Code)

(918) 588-6000 (Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changes since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425).

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12).

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)).

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)).

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐ Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 2.02. Results of Operations and Financial Condition.

On April 26, 2023, BOK Financial Corporation (“BOK Financial”) issued a press release announcing its financial results for the three months ended March 31, 2023 (“Press Release”). The full text of the Press Release is attached as Exhibit 99.1(a) to this report and is incorporated herein by reference. On April 26, 2023, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three months ended March 31, 2023 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.1(b) to this report and is incorporated herein by reference.

ITEM 7.01. Regulation FD Disclosure.

On April 26, 2023, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three months ended March 31, 2023 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.2(a) to this report and is incorporated herein by reference.

ITEM 9.01. Financial Statements and Exhibits.

(d)    Exhibits

99.1    Text of Press Release, dated April 26, 2023, titled "BOK Financial Corporation Reports Quarterly Earnings of $162 million or $2.43 Per Share in the First Quarter" and Financial Information for the Three Months Ended March 31, 2023.

99.2    Earnings conference call presentation, dated April 26, 2023 titled “Q1 Earnings Conference Call" for the Three Months Ended March 31, 2023.

104    Cover Page Interactive Data File (embedded within the Inline XBRL document).

Signature

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.

BOK FINANCIAL CORPORATION

By: /s/ Martin E. Grunst Martin E. Grunst Executive Vice President Chief Financial Officer Date: April 26, 2023

bokf-202301250000875357false00008753572023-01-252023-01-25

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): January 25, 2023

Commission File No. 001-37811

BOK FINANCIAL CORP

(Exact name of registrant as specified in its charter)

Oklahoma 73-1373454 (State or other jurisdiction of Incorporation or Organization) (IRS Employer Identification No.)

Bank of Oklahoma Tower Boston Avenue at Second Street Tulsa,Oklahoma 74192 (Address of Principal Executive Offices) (Zip Code)

(918) 588-6000 (Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changes since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425).

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12).

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)).

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)).

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐ Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 2.02. Results of Operations and Financial Condition.

On January 25, 2023, BOK Financial Corporation (“BOK Financial”) issued a press release announcing its financial results for the three months and year ended December 31, 2022 (“Press Release”). The full text of the Press Release is attached as Exhibit 99.1(a) to this report and is incorporated herein by reference. On January 25, 2023, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three months and year ended December 31, 2022 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.1(b) to this report and is incorporated herein by reference.

ITEM 7.01. Regulation FD Disclosure.

On January 25, 2023, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three months and year ended December 31, 2022 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.2(a) to this report and is incorporated herein by reference.

ITEM 9.01. Financial Statements and Exhibits.

(d)    Exhibits

99.1    Text of Press Release, dated January 25, 2023, titled "BOK Financial Corporation Reports Annual Earnings of $520 million or $7.68 Per Share and Quarterly Earnings of $168 million or $2.51 Per Share in the Fourth Quarter" and Financial Information for the Three Months and Year Ended December 31, 2022.

99.2    Earnings conference call presentation, dated January 25, 2023 titled “Q4 Earnings Conference Call" for the Three Months and Year Ended December 31, 2022.

104    Cover Page Interactive Data File (embedded within the Inline XBRL document).

Signature

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.

BOK FINANCIAL CORPORATION

By: /s/ Steven E. Nell Steven E. Nell Executive Vice President Chief Financial Officer Date: January 25, 2023

bokf-202210260000875357false00008753572022-10-262022-10-26

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 26, 2022

Commission File No. 001-37811

BOK FINANCIAL CORP

(Exact name of registrant as specified in its charter)

Oklahoma 73-1373454 (State or other jurisdiction of Incorporation or Organization) (IRS Employer Identification No.)

Bank of Oklahoma Tower Boston Avenue at Second Street Tulsa,Oklahoma 74192 (Address of Principal Executive Offices) (Zip Code)

(918) 588-6000 (Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changes since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425).

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12).

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)).

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)).

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐ Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 2.02. Results of Operations and Financial Condition.

On October 26, 2022, BOK Financial Corporation (“BOK Financial”) issued a press release announcing its financial results for the three and nine months ended September 30, 2022 (“Press Release”). The full text of the Press Release is attached as Exhibit 99.1(a) to this report and is incorporated herein by reference. On October 26, 2022, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three and nine months ended September 30, 2022 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.1(b) to this report and is incorporated herein by reference.

ITEM 7.01. Regulation FD Disclosure.

On October 26, 2022, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three and nine months ended September 30, 2022 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.2(a) to this report and is incorporated herein by reference.

ITEM 9.01. Financial Statements and Exhibits.

(d)    Exhibits

99.1    Text of Press Release, dated October 26, 2022, titled "BOK Financial Corporation Reports Quarterly Earnings of $157 million or $2.32 Per Share in the Third Quarter" and Financial Information for the Three and Nine Months Ended September 30, 2022.

99.2    Earnings conference call presentation, dated October 26, 2022 titled “Q3 Earnings Conference Call" for the Three and Nine Months Ended September 30, 2022.

104    Cover Page Interactive Data File (embedded within the Inline XBRL document).

Signature

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.

BOK FINANCIAL CORPORATION

By: /s/ Steven E. Nell Steven E. Nell Executive Vice President Chief Financial Officer Date: October 26, 2022

bokf-202207270000875357false00008753572022-07-272022-07-27

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): July 27, 2022

Commission File No. 001-37811

BOK FINANCIAL CORP

(Exact name of registrant as specified in its charter)

Oklahoma 73-1373454 (State or other jurisdiction of Incorporation or Organization) (IRS Employer Identification No.)

Bank of Oklahoma Tower Boston Avenue at Second Street Tulsa,Oklahoma 74192 (Address of Principal Executive Offices) (Zip Code)

(918) 588-6000 (Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changes since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425).

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12).

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)).

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)).

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐ Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 2.02. Results of Operations and Financial Condition.

On July 27, 2022, BOK Financial Corporation (“BOK Financial”) issued a press release announcing its financial results for the three and six months ended June 30, 2022 (“Press Release”). The full text of the Press Release is attached as Exhibit 99.1(a) to this report and is incorporated herein by reference. On July 27, 2022, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three and six months ended June 30, 2022 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.1(b) to this report and is incorporated herein by reference.

ITEM 7.01. Regulation FD Disclosure.

On July 27, 2022, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three and six months ended June 30, 2022 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.2(a) to this report and is incorporated herein by reference.

ITEM 9.01. Financial Statements and Exhibits.

(d)    Exhibits

99.1    Text of Press Release, dated July 27, 2022, titled "BOK Financial Corporation Reports Quarterly Earnings of $133 million or $1.96 Per Share in the Second Quarter" and Financial Information for the Three and Six Months Ended June 30, 2022.

99.2    Earnings conference call presentation, dated July 27, 2022 titled “Q2 Earnings Conference Call" for the Three and Six Months Ended June 30, 2022.

104    Cover Page Interactive Data File (embedded within the Inline XBRL document).

Signature

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.

BOK FINANCIAL CORPORATION

By: /s/ Steven E. Nell Steven E. Nell Executive Vice President Chief Financial Officer Date: July 27, 2022

bokf-202204270000875357false00008753572022-04-272022-04-27

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): April 27, 2022

Commission File No. 001-37811

BOK FINANCIAL CORP

(Exact name of registrant as specified in its charter)

Oklahoma 73-1373454 (State or other jurisdiction of Incorporation or Organization) (IRS Employer Identification No.)

Bank of Oklahoma Tower Boston Avenue at Second Street Tulsa,Oklahoma 74192 (Address of Principal Executive Offices) (Zip Code)

(918) 588-6000 (Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changes since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425).

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12).

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)).

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)).

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐ Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 2.02. Results of Operations and Financial Condition.

On April 27, 2022, BOK Financial Corporation (“BOK Financial”) issued a press release announcing its financial results for the three months ended March 31, 2022 (“Press Release”). The full text of the Press Release is attached as Exhibit 99.1(a) to this report and is incorporated herein by reference. On April 27, 2022, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three months ended March 31, 2022 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.1(b) to this report and is incorporated herein by reference.

ITEM 7.01. Regulation FD Disclosure.

On April 27, 2022, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three months ended March 31, 2022 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99.2(a) to this report and is incorporated herein by reference.

ITEM 9.01. Financial Statements and Exhibits.

(d)    Exhibits

99.1    Text of Press Release, dated April 27, 2022, titled "BOK Financial Corporation Reports Quarterly Earnings of $62 million or $0,91 Per Share in the First Quarter" and Financial Information for the Three Months Ended March 31, 2022.

99.2    Earnings conference call presentation, dated April 27, 2022 titled “Q1 Earnings Conference Call" for the Three Months Ended March 31, 2022.

104    Cover Page Interactive Data File (embedded within the Inline XBRL document).

Signature

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.

BOK FINANCIAL CORPORATION

By: /s/ Steven E. Nell Steven E. Nell Executive Vice President Chief Financial Officer Date: April 27, 2022

bokf-202201190000875357false00008753572022-01-192022-01-19

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): January 19, 2022

Commission File No. 001-37811

BOK FINANCIAL CORP

(Exact name of registrant as specified in its charter)

Oklahoma 73-1373454 (State or other jurisdiction of Incorporation or Organization) (IRS Employer Identification No.)

Bank of Oklahoma Tower Boston Avenue at Second Street Tulsa,Oklahoma 74192 (Address of Principal Executive Offices) (Zip Code)

(918) 588-6000 (Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changes since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425).

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12).

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)).

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)).

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐ Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 2.02. Results of Operations and Financial Condition.

On January 19, 2022, BOK Financial Corporation (“BOK Financial”) issued a press release announcing its financial results for the three months and year ended December 31, 2021 (“Press Release”). The full text of the Press Release is attached as Exhibit 99(a) to this report and is incorporated herein by reference. On January 19, 2022, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three months and year ended December 31, 2021 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99(b) to this report and is incorporated herein by reference.

ITEM 9.01. Financial Statements and Exhibits.

(a)Exhibits

99    Text of Press Release, dated January 19, 2022, titled "BOK Financial Corporation Reports Annual Earnings of $618 million or $8,95 Per Share and Quarterly Earnings of $117 million or $1.71 Per Share in the Fourth Quarter" and Financial Information for the Three Months and Year Ended December 31, 2021.

101        Interactive Data Files.

Signature

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.

BOK FINANCIAL CORPORATION

By: /s/ Steven E. Nell Steven E. Nell Executive Vice President Chief Financial Officer Date: January 19, 2022

bokf-202110200000875357false00008753572021-10-202021-10-20

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 20, 2021

Commission File No. 0-19341

BOK FINANCIAL CORP

(Exact name of registrant as specified in its charter)

Oklahoma 73-1373454 (State or other jurisdiction of Incorporation or Organization) (IRS Employer Identification No.)

Bank of Oklahoma Tower Boston Avenue at Second Street Tulsa,Oklahoma 74192 (Address of Principal Executive Offices) (Zip Code)

(918) 588-6000 (Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changes since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425).

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12).

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)).

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)).

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐ Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 2.02. Results of Operations and Financial Condition.

On October 20, 2021, BOK Financial Corporation (“BOK Financial”) issued a press release announcing its financial results for the three and nine months ended September 30, 2021 (“Press Release”). The full text of the Press Release is attached as Exhibit 99(a) to this report and is incorporated herein by reference. On October 20, 2021, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three and nine months ended September 30, 2021 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99(b) to this report and is incorporated herein by reference.

ITEM 9.01. Financial Statements and Exhibits.

(a)Exhibits

99    Text of Press Release, dated October 20, 2021, titled "BOK Financial Corporation Reports Quarterly Earnings of $188 million or $2.74 Per Share in the Third Quarter" and Financial Information for the Three and Nine Months Ended September 30, 2021.

101        Interactive Data Files.

Signature

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.

BOK FINANCIAL CORPORATION

By: /s/ Steven E. Nell Steven E. Nell Executive Vice President Chief Financial Officer Date: October 20, 2021

bokf-202107210000875357false00008753572021-07-212021-07-21

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): July 21, 2021

Commission File No. 0-19341

BOK FINANCIAL CORP ET AL

(Exact name of registrant as specified in its charter)

Oklahoma 73-1373454 (State or other jurisdiction of Incorporation or Organization) (IRS Employer Identification No.)

Bank of Oklahoma Tower Boston Avenue at Second Street Tulsa,Oklahoma 74192 (Address of Principal Executive Offices) (Zip Code)

(918) 588-6000 (Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changes since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425).

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12).

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)).

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)).

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐ Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 2.02. Results of Operations and Financial Condition.

On July 21, 2021, BOK Financial Corporation (“BOK Financial”) issued a press release announcing its financial results for the three and six months ended June 30, 2021 (“Press Release”). The full text of the Press Release is attached as Exhibit 99(a) to this report and is incorporated herein by reference. On July 21, 2021, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three and six months ended June 30, 2021 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99(b) to this report and is incorporated herein by reference.

ITEM 9.01. Financial Statements and Exhibits.

(a)Exhibits

99    Text of Press Release, dated July 21, 2021, titled "BOK Financial Corporation Reports Quarterly Earnings of $166 million or $2.40 Per Share in the Second Quarter" and Financial Information for the Three and Six Months Ended June 30, 2021.

101        Interactive Data Files.

Signature

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.

BOK FINANCIAL CORPORATION

By: /s/ Steven E. Nell Steven E. Nell Executive Vice President Chief Financial Officer Date: July 21, 2021

bokf-202104210000875357false00008753572021-04-212021-04-21

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): April 21, 2021

Commission File No. 0-19341

BOK FINANCIAL CORP ET AL

(Exact name of registrant as specified in its charter)

Oklahoma 73-1373454 (State or other jurisdiction of Incorporation or Organization) (IRS Employer Identification No.)

Bank of Oklahoma Tower Boston Avenue at Second Street Tulsa,Oklahoma 74192 (Address of Principal Executive Offices) (Zip Code)

(918) 588-6000 (Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changes since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425).

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12).

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)).

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)).

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐ Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 2.02. Results of Operations and Financial Condition.

On April 21, 2021, BOK Financial Corporation (“BOK Financial”) issued a press release announcing its financial results for the three months ended March 31, 2021 (“Press Release”). The full text of the Press Release is attached as Exhibit 99(a) to this report and is incorporated herein by reference. On April 21, 2021, in connection with the issuance of the Press Release, BOK Financial released financial information related to the three months ended March 31, 2021 (“Financial Information”), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99(b) to this report and is incorporated herein by reference.

ITEM 9.01. Financial Statements and Exhibits.

(a)Exhibits

99    Text of Press Release, dated April 21, 2021, titled "BOK Financial Corporation Reports Quarterly Earnings of $146 million or $2.10 Per Share in the First Quarter" and Financial Information for the Three Months Ended March 31, 2021.

101        Interactive Data Files.

Signature

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.

BOK FINANCIAL CORPORATION

By: /s/ Steven E. Nell Steven E. Nell Executive Vice President Chief Financial Officer Date: April 21, 2021