Company: MCHB
Filing Date: 2025-04-15
Form Type: DEFA14A
Source: 0001518715-25-000067
Chunk: 0

Company: Mechanics Bancorp
Filing Date: 2025-04-15
Form: DEFA14A
Chunk 0
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<div align='center'>UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549</div>

#### SCHEDULE 14A
<div align='center'>Proxy Statement Pursuant to Section 14(a)
of the Securities Exchange Act of 1934
(Amendment No.)</div>

| Filed by the Registrant                    |     | ☒ |
| Filed by a Party other than the Registrant |     | ☐ |

Check the appropriate Box:

| ☐ |     | Preliminary Proxy Statement                                                    |
| ☐ |     | Confidential for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) |
| ☐ |     | Definitive Proxy Statement                                                     |
| ☒ |     | Definitive Additional Materials                                                |
| ☐ |     | Soliciting Material Pursuant to §240.14a-12                                    |

#### HomeStreet, Inc.
<div align='center'>(Name of Registrant as Specified In Its Charter)</div>

|                                                    |     | -Name of Person(s) Filing Proxy Statement, if Other Than the Registrant                               |
| Payment of Filing Fee (Check the appropriate box): |     |                                                                                                       |
| ☒                                                  |     | No fee required.                                                                                      |
| ☐                                                  |     | Fee paid previously with preliminary materials.                                                       |
| ☐                                                  |     | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules- 14a-6(i)(1) and 0-11. |