Company: MCHB
Filing Date: 2025-07-03
Form Type: S-4
Source: 0001140361-25-024872
Chunk: 405

Company: Mechanics Bancorp
Filing Date: 2025-07-03
Form: S-4
Chunk 405
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 respectively. Commitments to extend credit and standby and trade letters of credit: The fair value of these commitments is not a significant amount and is not disclosed. NOTE 10 – EARNINGS PER SHARE The following table summarizes the calculation of earnings per share:

| (in thousands, except share and per share data)    |     | Quarter Ended March 31, 
                    2025 |     |        2024 |
|:---------------------------------------------------|:----|------------------------:|:----|------------:|
| Net income (loss)                                  |     |                 $43,791 |     |  $(113,293) |
| Weighted average shares:                           |     |                         |     |             |
| Basic weighted average common shares outstanding   |     |                  64,230 |     |      64,225 |
| Dilutive effect of unvested restricted stock units |     |                      18 |     |           — |
| Diluted weighted average common shares outstanding |     |                  64,248 |     |      64,225 |
| Net income (loss) per share:                       |     |                         |     |             |
| Basic earnings per share                           |     |                 $681.79 |     | $(1,764.00) |
| Diluted earnings per share                         |     |                 $681.59 |     | $(1,764.00) |

For the quarter ended March 31, 2024, 55 restricted stock units were excluded from the calculation of diluted earnings per share because they were antidilutive.

F-75

#### TABLE OF CONTENTS

#### Annex A

### AGREEMENT AND PLAN OF MERGER

#### by and among

#### MECHANICS BANK,

#### HOMESTREET, INC.

#### AND

### HOMESTREET BANK
<div align='center'>Dated March 28, 2025

A-1</div>

TABLE OF CONTENTS

TABLE OF CONTENTS

|                                                      |     |                                        |     | Page |
|                                                      |     | ARTICLE I                              
 THE MERGER                             |     |      |
| 1.1                                                  |     | The Merger                             |     | A-10 |
| 1.2                                                  |     | Closing                                |     | A-11 |
| 1.3                                                  |     | Conversion of Company Common Stock     |     | A-11 |
| 1.4                                                  |     | Treatment of Parent Equity Awards      |     | A