PRK

Effective March 31, 2026 (the "2023 PBRSU Certification Date"), the Executive Committee of the Board of Directors of Park National Corporation ("Park") certified the level of achievement with respect to the performance criteria for the three-fiscal-year performance period applicable to performance-based restricted stock units ("PBRSUs") granted to the reporting person effective January 18, 2023. The PBRSUs convert into Park common shares on a one-for-one basis. The PBRSUs earned based on the performance level achieved are also subject to a service-based vesting requirement with 50% vesting (resulting in the right to receive the number of common shares shown in the first row in Table I) on the 2023 PBRSU Certification Date and the other 50% to vest on the first anniversary of the 2023 PBRSU Certification Date (shown in the second row in Table II as a derivative security).

These common shares of Park were acquired upon the satisfaction of a service-based vesting requirement whereby PBRSUs were converted into Park common shares on a one-for-one basis.

In the April 2, 2026 Form 4, an estimated number of Park common shares was reported as being withheld by Park in order to satisfy the tax withholding obligations of the reporting person that arose upon the vesting of the PBRSUs which were not subject to the service-based vesting requirement described in footnote (1) and the vesting of the PBRSUs that had been subject to the service-based vesting requirement described in footnote (3), as applicable. This amendment reports the correct number of common shares withheld.

Effective March 31, 2026 (the "2023 PBRSU Certification Date"), the Executive Committee of the Board of Directors of Park National Corporation ("Park") certified the level of achievement with respect to the performance criteria for the three-fiscal-year performance period applicable to performance-based restricted stock units ("PBRSUs") granted to the reporting person effective January 18, 2023. The PBRSUs convert into Park common shares on a one-for-one basis. The PBRSUs earned based on the performance level achieved are also subject to a service-based vesting requirement with 50% vesting (resulting in the right to receive the number of common shares shown in the first row in Table I) on the 2023 PBRSU Certification Date and the other 50% to vest on the first anniversary of the 2023 PBRSU Certification Date (shown in the second row in Table II as a derivative security).

These common shares of Park were acquired upon the satisfaction of a service-based vesting requirement whereby PBRSUs were converted into Park common shares on a one-for-one basis.

These common shares of Park were acquired upon the satisfaction of a service-based vesting requirement whereby PBRSUs were converted into Park common shares on a one-for-one basis.

In the April 2, 2026 Form 4, an estimated number of Park common shares was reported as being withheld by Park in order to satisfy the tax withholding obligations of the reporting person that arose upon the vesting of the PBRSUs which were not subject to the service-based vesting requirement described in footnote (1) and the vesting of the PBRSUs that had been subject to the service-based vesting requirement described in footnote (3), as applicable. This amendment reports the correct number of common shares withheld.

Effective March 31, 2026 (the "2023 PBRSU Certification Date"), the Executive Committee of the Board of Directors of Park National Corporation ("Park") certified the level of achievement with respect to the performance criteria for the three-fiscal-year performance period applicable to performance-based restricted stock units ("PBRSUs") granted to the reporting person effective January 18, 2023. The PBRSUs convert into Park common shares on a one-for-one basis. The PBRSUs earned based on the performance level achieved are also subject to a service-based vesting requirement with 50% vesting (resulting in the right to receive the number of common shares shown in the first row in Table I) on the 2023 PBRSU Certification Date and the other 50% to vest on the first anniversary of the 2023 PBRSU Certification Date (shown in the second row in Table II as a derivative security).

Effective March 31, 2026 (the "2023 PBRSU Certification Date"), the Executive Committee of the Board of Directors of Park National Corporation ("Park") certified the level of achievement with respect to the performance criteria for the three-fiscal-year performance period applicable to performance-based restricted stock units ("PBRSUs") granted to the reporting person effective January 18, 2023. The PBRSUs convert into Park common shares on a one-for-one basis. The PBRSUs earned based on the performance level achieved are also subject to a service-based vesting requirement with 50% vesting (resulting in the right to receive the number of common shares shown in the first row in Table I) on the 2023 PBRSU Certification Date and the other 50% to vest on the first anniversary of the 2023 PBRSU Certification Date (shown in the second row in Table II as a derivative security).

These common shares of Park were acquired upon the satisfaction of a service-based vesting requirement whereby PBRSUs were converted into Park common shares on a one-for-one basis.

In the April 2, 2026 Form 4, an estimated number of Park common shares was reported as being withheld by Park in order to satisfy the tax withholding obligations of the reporting person that arose upon the vesting of the PBRSUs which were not subject to the service-based vesting requirement described in footnote (1) and the vesting of the PBRSUs that had been subject to the service-based vesting requirement described in footnote (3), as applicable. This amendment reports the correct number of common shares withheld.

Effective March 31, 2026 (the "2023 PBRSU Certification Date"), the Executive Committee of the Board of Directors of Park National Corporation ("Park") certified the level of achievement with respect to the performance criteria for the three-fiscal-year performance period applicable to performance-based restricted stock units ("PBRSUs") granted to the reporting person effective January 18, 2023. The PBRSUs convert into Park common shares on a one-for-one basis. The PBRSUs earned based on the performance level achieved are also subject to a service-based vesting requirement with 50% vesting (resulting in the right to receive the number of common shares shown in the first row in Table I) on the 2023 PBRSU Certification Date and the other 50% to vest on the first anniversary of the 2023 PBRSU Certification Date (shown in the second row in Table II as a derivative security).

Effective March 31, 2026 (the "2023 PBRSU Certification Date"), the Executive Committee of the Board of Directors of Park National Corporation ("Park") certified the level of achievement with respect to the performance criteria for the three-fiscal-year performance period applicable to performance-based restricted stock units ("PBRSUs") granted to the reporting person effective January 18, 2023. The PBRSUs convert into Park common shares on a one-for-one basis. The PBRSUs earned based on the performance level achieved are also subject to a service-based vesting requirement with 50% vesting (resulting in the right to receive the number of common shares shown in the first row in Table I) on the 2023 PBRSU Certification Date and the other 50% to vest on the first anniversary of the 2023 PBRSU Certification Date (shown in the second row in Table II as a derivative security).

Effective March 31, 2026 (the "2023 PBRSU Certification Date"), the Executive Committee of the Board of Directors of Park National Corporation ("Park") certified the level of achievement with respect to the performance criteria for the three-fiscal-year performance period applicable to performance-based restricted stock units ("PBRSUs") granted to the reporting person effective January 18, 2023. The PBRSUs convert into Park common shares on a one-for-one basis. The PBRSUs earned based on the performance level achieved are also subject to a service-based vesting requirement with 50% vesting (resulting in the right to receive the number of common shares shown in the first row in Table I) on the 2023 PBRSU Certification Date and the other 50% to vest on the first anniversary of the 2023 PBRSU Certification Date (shown in the second row in Table II as a derivative security).

These common shares of Park were acquired upon the satisfaction of a service-based vesting requirement whereby PBRSUs were converted into Park common shares on a one-for-one basis.

These common shares of Park were acquired upon the satisfaction of a service-based vesting requirement whereby PBRSUs were converted into Park common shares on a one-for-one basis.

These common shares of Park were acquired upon the satisfaction of a service-based vesting requirement whereby PBRSUs were converted into Park common shares on a one-for-one basis.

In the April 2, 2026 Form 4, an estimated number of Park common shares was reported as being withheld by Park in order to satisfy the tax withholding obligations of the reporting person that arose upon the vesting of the PBRSUs which were not subject to the service-based vesting requirement described in footnote (1) and the vesting of the PBRSUs that had been subject to the service-based vesting requirement described in footnote (3), as applicable. This amendment reports the correct number of common shares withheld.

In the April 2, 2026 Form 4, an estimated number of Park common shares was reported as being withheld by Park in order to satisfy the tax withholding obligations of the reporting person that arose upon the vesting of the PBRSUs which were not subject to the service-based vesting requirement described in footnote (1) and the vesting of the PBRSUs that had been subject to the service-based vesting requirement described in footnote (3), as applicable. This amendment reports the correct number of common shares withheld.

In the April 2, 2026 Form 4, an estimated number of Park common shares was reported as being withheld by Park in order to satisfy the tax withholding obligations of the reporting person that arose upon the vesting of the PBRSUs which were not subject to the service-based vesting requirement described in footnote (1) and the vesting of the PBRSUs that had been subject to the service-based vesting requirement described in footnote (3), as applicable. This amendment reports the correct number of common shares withheld.

In the April 2, 2026 Form 4, an estimated number of Park common shares was reported as being withheld by Park in order to satisfy the tax withholding obligations of the reporting person that arose upon the vesting of the PBRSUs which were not subject to the service-based vesting requirement described in footnote (1) and the vesting of the PBRSUs that had been subject to the service-based vesting requirement described in footnote (3), as applicable. This amendment reports the correct number of common shares withheld.

These common shares of Park were acquired upon the satisfaction of a service-based vesting requirement whereby PBRSUs were converted into Park common shares on a one-for-one basis.

Effective March 31, 2026 (the "2023 PBRSU Certification Date"), the Executive Committee of the Board of Directors of Park National Corporation ("Park") certified the level of achievement with respect to the performance criteria for the three-fiscal-year performance period applicable to performance-based restricted stock units ("PBRSUs") granted to the reporting person effective January 18, 2023. The PBRSUs convert into Park common shares on a one-for-one basis. The PBRSUs earned based on the performance level achieved are also subject to a service-based vesting requirement with 50% vesting (resulting in the right to receive the number of common shares shown in the first row in Table I) on the 2023 PBRSU Certification Date and the other 50% to vest on the first anniversary of the 2023 PBRSU Certification Date (shown in the second row in Table II as a derivative security).

In the April 2, 2026 Form 4, an estimated number of Park common shares was reported as being withheld by Park in order to satisfy the tax withholding obligations of the reporting person that arose upon the vesting of the PBRSUs which were not subject to the service-based vesting requirement described in footnote (1) and the vesting of the PBRSUs that had been subject to the service-based vesting requirement described in footnote (3), as applicable. This amendment reports the correct number of common shares withheld.

In connection with the merger (the "Merger") of First Citizens Bancshares, Inc. ("FIZN") into Park National Corporation ("Park"), each share of FIZN common stock beneficially owned by the reporting person was converted into the right to receive 0.52 shares of Park common stock. Park's closing price on the effective date of the Merger was $162.94.

On February 3, 2026, the reporting person filed a Form 4 to reflect the number of common shares of Park that he reasonably believed were held by him following the Merger. The ESOP trustee and transfer agent provided final allocations, and this amendment is being filed to reflect the correct number of shares that were acquired in the Merger.

On February 3, 2026, the reporting person filed a Form 4 to reflect the number of common shares of Park that he reasonably believed were held by him following the Merger. The ESOP trustee and transfer agent provided final allocations, and this amendment is being filed to reflect the correct number of shares that were acquired in the Merger.

In connection with the merger (the "Merger") of First Citizens Bancshares, Inc. ("FIZN") into Park National Corporation ("Park"), each share of FIZN common stock beneficially owned by the reporting person was converted into the right to receive 0.52 shares of Park common stock. Park's closing price on the effective date of the Merger was $162.94.

In connection with the merger (the "Merger") of First Citizens Bancshares, Inc. ("FIZN") into Park National Corporation ("Park"), each share of FIZN common stock beneficially owned by the reporting person was converted into the right to receive 0.52 shares of Park common stock. Park's closing price on the effective date of the Merger was $162.94.

In connection with the merger (the "Merger") of First Citizens Bancshares, Inc. ("FIZN") into Park National Corporation ("Park"), each share of FIZN common stock beneficially owned by the reporting person was converted into the right to receive 0.52 shares of Park common stock. Park's closing price on the effective date of the Merger was $162.94.

On February 3, 2026, the reporting person filed a Form 4 to reflect the number of common shares of Park that he reasonably believed were held by him following the Merger. The ESOP trustee and transfer agent provided final allocations, and this amendment is being filed to reflect the correct number of shares that were acquired in the Merger.

On February 3, 2026, the reporting person filed a Form 4 to reflect the number of common shares of Park that he reasonably believed were held by him following the Merger. The ESOP trustee and transfer agent provided final allocations, and this amendment is being filed to reflect the correct number of shares that were acquired in the Merger.

Common shares were awarded pursuant to and in accordance with the terms of the Park National Corporation 2017 Long-Term Incentive Plan for Non-Employee Directors (the "2017 Non-Employee Directors LTIP").

Common shares were awarded pursuant to and in accordance with the terms of the Park National Corporation 2017 Long-Term Incentive Plan for Non-Employee Directors (the "2017 Non-Employee Directors LTIP").

The number of common shares reported as beneficially owned differs due to shares acquired under Park National Corporation's ("Park") dividend reinvestment plan.

Common shares were awarded pursuant to and in accordance with the terms of the Park National Corporation 2017 Long-Term Incentive Plan for Non-Employee Directors (the "2017 Non-Employee Directors LTIP").

Common shares were awarded pursuant to and in accordance with the terms of the Park National Corporation 2017 Long-Term Incentive Plan for Non-Employee Directors (the "2017 Non-Employee Directors LTIP").

The number of common shares reported as beneficially owned differs due to shares acquired under Park National Corporation's ("Park") dividend reinvestment plan.

Common shares were awarded pursuant to and in accordance with the terms of the Park National Corporation 2017 Long-Term Incentive Plan for Non-Employee Directors (the "2017 Non-Employee Directors LTIP").

Common shares were awarded pursuant to and in accordance with the terms of the Park National Corporation 2017 Long-Term Incentive Plan for Non-Employee Directors (the "2017 Non-Employee Directors LTIP").

Common shares were awarded pursuant to and in accordance with the terms of the Park National Corporation 2017 Long-Term Incentive Plan for Non-Employee Directors (the "2017 Non-Employee Directors LTIP").

Common shares were awarded pursuant to and in accordance with the terms of the Park National Corporation 2017 Long-Term Incentive Plan for Non-Employee Directors (the "2017 Non-Employee Directors LTIP").

Common shares were awarded pursuant to and in accordance with the terms of the Park National Corporation 2017 Long-Term Incentive Plan for Non-Employee Directors (the "2017 Non-Employee Directors LTIP").

The number of common shares reported as beneficially owned differs due to shares acquired under Park National Corporation's ("Park") dividend reinvestment plan.

Common shares were awarded pursuant to and in accordance with the terms of the Park National Corporation 2017 Long-Term Incentive Plan for Non-Employee Directors (the "2017 Non-Employee Directors LTIP").

Common shares were awarded pursuant to and in accordance with the terms of the Park National Corporation 2017 Long-Term Incentive Plan for Non-Employee Directors (the "2017 Non-Employee Directors LTIP").

These common shares of Park were acquired upon the satisfaction of a service-based vesting requirement whereby PBRSUs were converted into Park common shares on a one-for-one basis.

These common shares of Park were acquired upon the satisfaction of a service-based vesting requirement whereby PBRSUs were converted into Park common shares on a one-for-one basis.

Effective March 31, 2025 (the "2022 PBRSU Certification Date"), the Executive Committee of the Board of Directors of Park National Corporation ("Park") certified the level of achievement with respect to the performance criteria for the three-fiscal-year performance period applicable to performance-based restricted stock units ("PBRSUs") granted to the reporting person effective January 20, 2022. The PBRSUs convert into Park common shares on a one-for-one basis. The PBRSUs earned based on the performance level achieved are also subject to a service-based vesting requirement with 50% vesting (resulting in the right to receive the number of common shares shown in the first row in Table I) on the 2022 PBRSU Certification Date and the other 50% to vest on the first anniversary of the 2022 PBRSU Certification Date (shown in the second row in Table II as a derivative security).