Company: CCNE
Filing Date: 2025-03-05
Form Type: 424B3
Source: 0001193125-25-047258
Chunk: 237

Company: CNB FINANCIAL CORP/PA
Filing Date: 2025-03-05
Form: 424B3
Chunk 237
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 earnings per common share                               |     |           |    1.72 |   |     |          |   1.32 |   |     |             |        |   |     |     |     |   |     |             |        |   |     |     |     |   |     |          |    2.11 |   |
| Average common shares outstanding                               |     |           |  20,832 |   |     |          |  9,584 |   |     |             | (9,584 | ) |     |     | (AD | ) |     |             |  8,429 |   |     |     | (AE | ) |     |          |  29,261 |   |
| Average diluted shares outstanding                              |     |           |  20,896 |   |     |          |  9,585 |   |     |             | (9,585 | ) |     |     | (AD | ) |     |             |  8,429 |   |     |     | (AE | ) |     |          |  29,325 |   |

193

Footnotes to Unaudited Pro Forma Income Statement for the Nine Months ended September 30, 2024 The following pro forma adjustments have been reflected in the unaudited pro forma combined consolidated financial statements presented for CNB. Unless otherwise noted, all adjustments are based on assumptions and valuations as of September 30, 2024 for the respective pending acquisition and are subject to change.

| (V) | Reflects the adjustment to interest income to record estimated accretion of discounts on acquired loans held                                        
 for investment of $104.6 million, which expected to be accreted over six years using the sum-of-years digits method, less opportunity cost of cash. |

| (W) | Reflects the net adjustment to interest income as part of the divestiture adjustments and the impact of new 
 loan interest income from reinvesting of proceeds into new commercial and industrial loans.                 |

| (X) | Reflects the estimated interest accretion of discounts on acquired investment securities of $15.6 million 
 accreted over four years using the straight-line method.                                                  |

| (Y) | Reflects the adjustment to interest expense as part of the divestiture adjustments. |

| (Z) | Reflects adjustment to operating expenses for the direct expenses as part of the divestiture