MOUNTLAKE TERRACE, WA – November 15, 2024 - FS Bancorp, Inc. (NASDAQ: FSBW) (“Company”), the holding company for 1st Security Bank of Washington (“Bank”) announced that the Company has completed the $5.0 million repurchase program announced on July 11, 2024. The Company also announced that its Board of Directors has authorized an additional repurchase of up to $5.0 million in shares of the Company’s outstanding shares of common stock in the open market, in privately negotiated transactions or shares withheld upon the exercise of equity awards from time to time over a 12-month period until October 31, 2025, at such prices as may be determined by the Company’s management. The repurchase program will commence no sooner than the third trading day after the public announcement of this repurchase program.

The repurchase program permits shares to be repurchased in open market or private transactions or pursuant to a trading plan adopted in accordance with Rule 10b5-1 of the Securities and Exchange Commission (“SEC”).

Repurchases will be made at management's discretion at prices management considers to be attractive and in the best interests of both the Company and its shareholders, subject to the availability of stock, general market conditions, the trading price of the stock, alternative uses for capital, and the Company's financial performance. Open market purchases will be conducted in accordance with the limitations set forth in Rule 10b-18 of the SEC and other applicable legal requirements.

The repurchase program may be suspended, terminated or modified at any time for any reason, including market conditions, the cost of repurchasing shares, the availability of alternative investment opportunities, liquidity, and other factors deemed appropriate. These factors may also affect the timing and amount of share repurchases. The repurchase program does not obligate the Company to purchase any particular number of shares.

About FS Bancorp

FS Bancorp, Inc., a Washington corporation, is the holding company for 1st Security Bank of Washington. The Bank provides loan and deposit services to customers at its twenty-seven branches, and one headquarters office that produces loans and accepts deposits, and loan production offices in various suburban communities in the greater Puget Sound area, the Kennewick-Pasco-Richland metropolitan area of Washington, also known as the Tri-Cities, Goldendale, Vancouver, and White Salmon, Washington and Manzanita, Newport, Ontario, Tillamook, and Waldport, Oregon.   The Bank services home mortgage customers throughout the Northwest predominantly in Washington State including the Puget Sound, Tri-Cities and Vancouver home lending markets.

For more information visit 1st Security Bank’s website at www.fsbwa.com.

Forward-Looking Statements

When used in this press release and in other documents filed with or furnished to the Securities and Exchange Commission (the “SEC”), in press releases or other public stockholder communications, or in oral statements made with the approval of an authorized executive officer, the words or phrases “believe,” “will,” “will likely

result,” “are expected to,” “will continue,” “is anticipated,” “estimate,” “project,” “plans,” or similar expressions are intended to identify “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Forward‑looking statements are not historical facts but instead represent management's current expectations and forecasts regarding future events, many of which are inherently uncertain and outside of our control.  Actual results may differ, possibly materially from those currently expected or projected in these forward-looking statements. Factors that could cause the Company’s actual results to differ materially from those described in the forward-looking statements, include but are not limited to, the following: potential adverse impacts to economic conditions in the Company’s local market areas, other markets where the Company has lending relationships, or other aspects of the Company’s business operations or financial markets, including, without limitation, as a result of employment levels; labor shortages, the effects of inflation, a potential recession or slowed economic growth caused by increasing political instability from acts of war, including Russia’s invasion of Ukraine, as well as increasing prices and supply chain disruptions, and any governmental or societal response to new COVID-19 variants; increased competitive pressures, changes in the interest rate environment, adverse changes in the securities markets, the Company’s ability to successfully realize the anticipated benefits of the branch acquisitions, including customer acquisition and retention; the Company’s ability to execute its plans to grow its residential construction lending, mortgage banking, and warehouse lending operations, and the geographic expansion of its indirect home improvement lending; challenges arising from expanding into new geographic markets, products, or services; secondary market conditions for loans and the Company’s ability to originate loans for sale and sell loans in the secondary market; legislative and regulatory changes, including changes in banking, securities and tax law, in regulatory policies and principles, or the interpretation of regulatory capital or other rules; and other factors described in the Company’s latest Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, and other reports filed with and furnished to the SEC which are available on its website at www.fsbwa.com and on the SEC's website at www.sec.gov.  Any of the forward-looking statements that the Company makes in this press release and in the other public statements are based upon management's beliefs and assumptions at the time they are made and may turn out to be incorrect because of the inaccurate assumptions the Company might make, because of the factors illustrated above or because of other factors that cannot be foreseen by the Company. Therefore, these factors should be considered in evaluating the forward‑looking statements, and undue reliance should not be placed on such statements. The Company does not undertake and specifically disclaims any obligation to revise any forward-looking statements to reflect the occurrence of anticipated or unanticipated events or circumstances after the date of such statements. These risks could cause the Company’s actual results for 2024 and beyond to differ materially from those expressed in any forward-looking statements made by, or on behalf of the Company and could negatively affect its operating and stock performance.