Company: CCNE
Filing Date: 2025-03-05
Form Type: 424B3
Source: 0001193125-25-047258
Chunk: 114

Company: CNB FINANCIAL CORP/PA
Filing Date: 2025-03-05
Form: 424B3
Chunk 114
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 100 | % |     | 50%             |     | 100%            |     | 150%                       |

The performance will be measured against the S&P U.S. Small Cap Banks Index Constituents excluding Thrifts with assets between $2.5 billion and $10 billion as of the first trading day of the performance period (“Performance Comparator Group”). Actual performance between threshold, target and stretch will be interpolated. The performance-based restricted stock will vest after the performance period and when relative performance results are reviewed and approved by the ECC and affirmed by the CNB Board of Directors. Benefits CNB Bank maintains a 401(k) Savings Plan to attract and retain employees and help them meet their retirement goals. NEOs are eligible to participate in the 401(k) Savings Plan and receive matching employer contributions subject to plan and IRS limits. Further information is provided under the section below entitled “Compensation of CNB Executive Officers—Retirement Plan” beginning on page 95. 79

CNB and/or CNB Bank also maintains certain non-qualifiedretirement and deferred compensation plans. CNB believes that these non-qualifiedplans are an important element in retaining NEOs, as well as helping them meet their post-employment financial management goals. CNB provides:

| • |     | Supplemental Executive Retirement Plan (“SERP”) – Each of Messrs. Peduzzi, Lima, and                                                                                                                                                                  
 Griffith participate in a defined benefit SERP, which is designed to attract and retain qualified and experienced executive officers. Each SERP and the relevant provisions are established in a formal agreement between CNB Bank and the respective 
 NEO. The narrative that follows the “Pension Benefits” table below contains a detailed description of each SERP.                                                                                                                                      |

| • |     | Executive Deferred Compensation Plan – Each NEO can participate in this plan, which allows them to                                                                                                                                              
 defer up to 75% of base compensation and 100% of annual incentive compensation until a date in the future. If 100% of incentive compensation is deferred, the executive is responsible for payment of applicable payroll taxes. CNB provides no 
 inducement (matching or discretionary contribution) for NEOs to participate.                                                                                                                                                                    |

CNB provides certain NEOs with perquisites that the ECC believes are reasonable and consistent with its overall compensation philosophy and consistent with executive benefits that are customary in the financial services industry. Specifically, CNB provides each NEO the option to use a company-provided vehicle, as well as payment of club dues, both of