Company: MCHB
Filing Date: 2025-07-16
Form Type: 424B3
Source: 0001140361-25-026051
Chunk: 562

Company: Mechanics Bancorp
Filing Date: 2025-07-16
Form: 424B3
Chunk 562
---
#### TABLE OF CONTENTS

### CERTIFICATE REGARDING

### FOURTH AMENDED AND RESTATED ARTICLES OF INCORPORATION

### OF MECHANICS BANCORP
Pursuant to the provisions of Section 23B.10.060 and 23B.10.070 of the Washington Business Corporation Act, the undersigned, who is the duly elected, qualified, and acting [•] of Mechanics Bancorp, a Washington corporation (the “

#### Corporation
”), hereby certifies that:

1. The name of the Corporation is Mechanics Bancorp, a Washington corporation.

2. The Third Restated Articles of Incorporation of HomeStreet, Inc. filed on July 25, 2019 are amended and restated in their entirety and replaced with the Fourth Amended and Restated Articles of Incorporation of the Corporation as set forth hereto (the “

#### Fourth Amended and Restated Articles
”).

3. The Fourth Amended and Restated Articles were duly approved by the Board of Directors of the Corporation on [•] and by the shareholders of the Corporation in accordance with the provisions of RCW 23B.10.030 and 23B.10.040 on [•].

4. These Fourth Amended and Restated Articles shall be effective as of [•].

EXECUTED this [•] day of [•], [•].

[•]

[•]

[•]

<div align='center'>A-107</div>

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#### Exhibit C

#### Support Agreement Shareholders
1. Ford Financial Fund II, L.P.

2. Ford Financial Fund III, L.P.

3. EB Acquisition Company LLC

4. EB Acquisition Company II LLC

5. Rabobank International Holding B.V.

<div align='center'>A-108</div>

#### TABLE OF CONTENTS

#### Exhibit D

#### Form of Parent Bylaw Amendment
<div align='center'>A-109</div>

#### TABLE OF CONTENTS

### AMENDED & RESTATED BYLAWS

#### OF

### MECHANICS BANCORP
<div align='center'>A-110</div>

TABLE OF CONTENTS

TABLE OF CONTENTS

|                                                                                         |     | Page  |
| ARTICLE 1 SHAREHOLDERS                                                                  |     | A-114 |
| 1.1 ANNUAL MEETING                                                                      |     | A-114 |
| 1.2 SPECIAL MEETINGS