Company: MCHB
Filing Date: 2025-07-15
Form Type: S-4/A
Source: 0001140361-25-025920
Chunk: 742

Company: Mechanics Bancorp
Filing Date: 2025-07-15
Form: S-4/A
Chunk 742
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 A – Form of Rabobank Party Joinder Agreement   |     | H-33 |
| Exhibit B – Form of Ford Shareholder Joinder Agreement |     | H-35 |
| Exhibit C – Form of Articles Amendment                 |     | H-37 |

H-3

#### TABLE OF CONTENTS
<div align='center'>REGISTRATION RIGHTS AGREEMENT</div>

This REGISTRATION RIGHTS AGREEMENT, dated as of March 28, 2025, is by and among HomeStreet, Inc., a Washington corporation (the “ Company ”), Mechanics Bank, a California banking corporation (the “ Bank ”), EB Acquisition Company LLC, a Delaware limited liability company, EB Acquisition Company II LLC, a Delaware limited liability company, Rabobank International Holding B.V., a Besloten Vennootschap Met Beperkte Aansprakelijkheid (“ Rabobank ”) and solely with respect to Section 7.4 through Section 7.14, Ford Financial Fund II, L.P., a Delaware limited partnership, Ford Financial Fund III, L.P., a Delaware limited partnership (Ford Financial Fund II, L.P. and Ford Financial Fund III, L.P., collectively, the “ Ford Funds ”), and each person who becomes a party to this Agreement in accordance with the terms hereof by executing and delivering a joinder to this Agreement in accordance with the terms hereof.

### RECITALS
WHEREAS, in connection with the consummation of the transactions contemplated by the Stock Purchase Agreement, dated as of March 15, 2019 (the “ Purchase Agreement ”), between Rabobank and the Bank, Rabobank, the Bank, the Ford Shareholders and the Ford Funds entered into the Shareholders Agreement, dated as of August 31, 2019 (the “ Shareholders Agreement ”);

WHEREAS, concurrently with the execution of this Agreement, the Company, the Bank and HomeStreet Bank, a wholly owned subsidiary of the Company, have entered into the Agreement and Plan of Merger (the “ Merger Agreement ”), dated the date hereof, providing, among other things, for the merger of the Bank and HomeStreet Bank;

WHEREAS, in connection with the transactions contemplated by the Merger Agreement, the Board of Directors of the Company has (i) approved the amendment of the Company’s articles of incorporation in the form attached as Exhibit B to the Merger Agreement and as Exhibit C to this Agreement (the “ Articles Amendment ”), which, among other things