Company: MCHB
Filing Date: 2025-07-03
Form Type: S-4
Source: 0001140361-25-024872
Chunk: 273

Company: Mechanics Bancorp
Filing Date: 2025-07-03
Form: S-4
Chunk 273
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Street RSU in respect of the number of shares of the Class A common stock (rounded to the nearest whole share) equal to (1) the total number of shares of Mechanics common stock subject to the Mechanics RSU immediately prior to the effective time multiplied by (2) the Class A exchange ratio. Each Assumed HomeStreet RSU will otherwise remain subject to the same terms and conditions (including vesting terms, performance measures, and terms with respect to dividend equivalents) as applied to the corresponding Mechanics RSU immediately prior to the effective time.

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#### TABLE OF CONTENTS

#### Closing and Effective Time of the Merger
The merger will be completed only if all conditions to the merger discussed in this proxy statement/prospectus/consent solicitation statement and set forth in the merger agreement are either satisfied or waived (subject to applicable law). Please see the section entitled “ —Conditions to Complete the Merger ” for more information.

The merger will become effective when the merger agreement is filed with and accepted by the CDFPI in accordance with Section 4887(b) of the California Financial Code. The closing of the merger will take place on a date no later than the first day of the first calendar month after the satisfaction or waiver by the party entitled to the benefit thereof (subject to applicable law) of the last of the conditions to the merger, unless mutually agreed by the parties.

It currently is anticipated that the completion of the merger will occur in the third quarter of 2025 subject to the receipt of HomeStreet shareholder approval, regulatory approvals and other customary closing conditions, but neither HomeStreet nor Mechanics can guarantee when, or if, the merger will be completed.

#### Exchange of Shares

### Exchange Procedures
As promptly as practicable after the effective time, but in no event later than ten (10) days thereafter, HomeStreet and Mechanics will cause the exchange agent to mail to each holder of record of one or more old certificates (which, for purposes of this proxy statement/prospectus/consent solicitation statement, will be deemed to include certificates or book-entry account statements) representing shares of Mechanics common stock immediately prior to the effective time and a letter of transmittal and instructions for use in effecting the surrender of such old certificates in exchange for new certificates (which, for purposes of this proxy statement/prospectus/consent solicitation statement, will be deemed to include evidence in book-entry form) representing the number of whole shares of HomeStreet common stock and any cash in lieu of fractional shares which the