PARK NATIONAL CORP /OH/

Evaluation of Disclosure Controls and Procedures

With the participation of the Chief Executive Officer and President (the principal executive officer) and the Chief Financial Officer, Secretary and Treasurer (the principal financial officer) of Park, Park’s management has evaluated the effectiveness of Park’s disclosure controls and procedures (as defined in Rule 13a-15(e) under the Exchange Act) as of the end of the fiscal year covered by this Annual Report on Form 10-K. Based on that evaluation, Park’s Chief Executive Officer and President and Park’s Chief Financial Officer, Secretary and Treasurer have concluded that:

•information required to be disclosed by Park in this Annual Report on Form 10-K and the other reports that Park files or submits under the Exchange Act would be accumulated and communicated to Park’s management, including Park's principal executive officer and Park's principal financial officer, as appropriate to allow timely decisions regarding required disclosure;

•information required to be disclosed by Park in this Annual Report on Form 10-K and the other reports that Park files or submits under the Exchange Act would be recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms; and

•Park’s disclosure controls and procedures were effective as of the end of the fiscal year covered by this Annual Report on Form 10-K.

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Management’s Annual Report on Internal Control over Financial Reporting

The “MANAGEMENT’S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING” is included in "ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA" of this Annual Report on Form 10-K.

Audit Report of the Registered Public Accounting Firm

The “REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM” is included in "ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA" of this Annual Report on Form 10-K.

Changes in Internal Control over Financial Reporting

There were no changes in Park’s internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) that occurred during Park’s quarter ended December 31, 2025, that have materially affected, or are reasonably likely to materially affect, Park’s internal control over financial reporting.

During the three months (the quarterly period) ended December 31, 2025, no director andno officer of Park (as defined in Rule 16a-1(f) under the Exchange Act) of Park adopted, modified, orterminated a "Rule 10b5-1 trading arrangement" or a "non-Rule 10b5-1 trading arrangement," as each term is defined in Item 408(a) of SEC Regulation S-K.