Share-Based Compensation

The Park National Corporation 2013 Long-Term Incentive Plan (the "2013 Incentive Plan") was adopted by the Board of Directors of Park on January 28, 2013 and was approved by Park's shareholders at the Annual Meeting of Shareholders on April 22, 2013. The 2013 Incentive Plan made equity-based awards and cash-based awards available for grant to participants in the form of incentive stock options, nonqualified stock options, stock appreciation rights (“SARs”), restricted common shares (“Restricted Stock”), restricted stock unit awards that may be settled in common shares, cash or a combination of the two (“Restricted Stock Units”), unrestricted common shares (“Other Stock-Based Awards”) and cash-based awards. Under the 2013 Incentive Plan, 600,000 common shares were authorized to be delivered in connection with grants under the 2013 Incentive Plan. The common shares to be delivered under the 2013 Incentive Plan are to consist of either common shares currently held or common shares subsequently acquired by Park as treasury shares, including common shares purchased in the open market or in private transactions. As of March 31, 2018, there were 92,554 common shares subject to performance-based restricted stock units (“PBRSUs”) issued under the 2013 Incentive Plan, which represented the only awards outstanding under the 2013 Incentive Plan.

The Park National Corporation 2017 Long-Term Incentive Plan for Employees (the "2017 Employees LTIP") was adopted by the Board of Directors of Park on January 23, 2017 and was approved by Park's shareholders at the Annual Meeting of Shareholders on April 24, 2017. The 2017 Employees LTIP makes equity-based awards and cash-based awards available for grant to participants in the form of incentive stock options, nonqualified stock options, SARs, Restricted Stock, Restricted Stock Units, Other Stock-Based Awards and cash-based awards. Under the 2017 Employees LTIP, 750,000 common shares are authorized to be delivered in connection with grants under the 2017 Employees LTIP. The common shares to be delivered under the 2017 Employees LTIP are to consist of either common shares currently held or common shares subsequently acquired by Park as treasury shares, including common shares purchased in the open market or in private transactions. At March 31, 2018, 703,410 common shares were available for future grants under the 2017 Employees LTIP.

The Park National Corporation 2017 Long-Term Incentive Plan for Non-Employee Directors (the "2017 Non-Employee Directors LTIP") was adopted by the Board of Directors of Park on January 23, 2017 and was approved by Park's shareholders at the Annual Meeting of Shareholders on April 24, 2017. The 2017 Non-Employee Directors LTIP makes equity-based awards and cash-based awards available for grant to participants in the form of nonqualified stock options, SARs, Restricted Stock, Restricted Stock Units, Other Stock-Based Awards, and cash-based awards. Under the 2017 Non-Employee Directors LTIP, 150,000 common shares are authorized to be delivered in connection with grants under the 2017 Non-Employee Directors LTIP. The common shares to be delivered under the 2017 Non-Employee Directors LTIP are to consist of either common shares currently held or common shares subsequently acquired by Park as treasury shares, including common shares purchased in the open market or in private transactions. At March 31, 2018, 138,850 common shares were available for future grants under the 2017 Non-Employee Director LTIP.

The 2017 Employees LTIP and the 2017 Non-Employee Directors LTIP have replaced the provisions of the 2013 Incentive Plan with respect to the grant of future awards. As a result of the approval of the 2017 Employees LTIP and the 2017 Non-Employee Directors LTIP, Park has not granted and will not grant any additional awards under the 2013 Incentive Plan after April 24, 2017. Awards made under the 2013 Incentive Plan prior to April 24, 2017 will remain in effect in accordance with their respective terms.

During the three months ended March 31, 2018, the Compensation Committee of the Board of Directors of Park granted awards of PBRSUs, under the 2017 Employees LTIP, covering an aggregate of 47,715 common shares to certain employees of Park and its subsidiaries. During the three months ended March 31, 2017, the Compensation Committee of the Board of Directors of Park granted awards of PBRSUs, under the 2013 Incentive Plan, covering an aggregate of 45,788 common shares to certain employees of Park and its subsidiaries. The number of PBRSUs earned or settled will depend on the level of achievement with respect to certain performance criteria and are also subject to subsequent service-based vesting.

A summary of changes in the common shares subject to nonvested PBRSUs for the three months ended March 31, 2018 follows:



	Common shares subject to PBRSUs
Nonvested at January 1, 2018	116,716
Granted	47,715
Vested	(18,800	)
Forfeited	(4,167	)
Adjustment for performance conditions of PBRSUs ⁽¹⁾	(2,320	)
Nonvested at March 31, 2018	139,144

(1) The number of PBRSUs earned depends on the level of achievement with respect to certain performance criteria. Adjustment herein represents the difference between the maximum number of common shares which could be earned and the actual number earned for those PBRSUs as to which the performance period was completed.

On March 31, 2018, an aggregate of 18,800 of the PBRSUs granted in 2014 and 2015 vestedin full due to the level of achievement with respect to certain performance criteria and the satisfaction of the service-based vesting requirement. A total of 5,879 common shares were withheld to satisfy employee income tax withholding obligations. This resulted in a net amount of 12,921 common shares being issued to employees of Park. On March 31, 2017, 9,674 of the PBRSUs granted in 2014 vestedin full due to the level of achievement with respect to certain performance criteria and the satisfaction of the service-based vesting requirement. A total of 3,293 common shares were withheld to satisfy employee income tax withholding obligations. This resulted in a net amount of 6,381 common shares being issued to employees of Park.

Share-based compensation expense of $1.1 million and $826,000 was recognized for the three-month periods ended March 31, 2018 and 2017, respectively.

The following table details expected additional share-based compensation expense related to PBRSUs outstanding as of March 31, 2018:



(In thousands)
Nine months ending December 31, 2018	$	2,724
2019	3,098
2020	2,072
2021	846
2022	133
Total	$	8,873