Company: SFBC
Filing Date: 2025-04-16
Form Type: DEF 14A
Source: 0001541119-25-000013
Chunk: 1

Company: Sound Financial Bancorp, Inc.
Filing Date: 2025-04-16
Form: DEF 14A
Chunk 1
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 notice and proxy statement, which contain important information about the proxy voting process and the business to be conducted at the annual meeting. Please vote your shares by proxy as soon as possible by telephone, online or mail. Every shareholder vote is important, and we want to ensure that your shares are represented at the annual meeting. Your prompt response will save us the additional expense of soliciting proxies and will ensure that your shares are represented at the meeting. Returning the proxy card by mail or voting telephonically or electronically prior to the annual meeting does NOT deprive you of your right to attend or to vote your shares in person at the meeting.

Your Board of Directors and management are committed to the continued success of Sound Financial Bancorp, Inc. and the enhancement of the value of your investment. As President and Chief Executive Officer, I want to express my appreciation for your confidence and support.

Sincerely,

/s/ Laura Lee Stewart

Laura Lee Stewart

President and Chief Executive Officer

### SOUND FINANCIAL BANCORP, INC.

#### 2400 3

#### rd

#### Avenue, Suite 150

#### Seattle, Washington 98121
<div align='center'>(206) 448-0884</div>

### NOTICE OF ANNUAL MEETING OF SHAREHOLDERS

#### TO BE HELD MAY 27, 2025
NOTICE IS HEREBY GIVEN that the annual meeting of shareholders of Sound Financial Bancorp, Inc. will be held as follows:

TIME Wednesday, May 27, 2025, at 10:00 a.m., Pacific Time

PLACE Sound Community Bank

2400 3rd Avenue, Suite 150

Seattle, Washington

BUSINESS (1) Election of three directors of Sound Financial Bancorp, Inc.

(2) Advisory (non-binding) vote on executive compensation.

(3) Ratification of the appointment of Moss Adams, LLP as Sound Financial Bancorp, Inc.’s independent registered public accounting firm for the fiscal year ending December 31, 2025.

RECORD DATE Holders of record of Sound Financial Bancorp, Inc. common stock at the close of business on March 31, 2025, are entitled to receive this Notice and to vote at the annual meeting, or any adjournment or postponement thereof.

PROXY VOTING It is important that your shares be represented and voted at the annual meeting. To ensure that your shares are represented at the annual meeting, please take the time to vote by Internet or telephone or