X0508 4 2023-08-15 0 0001530249 FS Bancorp, Inc. FSBW 0001841180 Andrews Pamela Marie 6920 220TH STREET SW MOUNTLAKE TERRACE WA 98043 1 0 0 0 0 Common Stock 2023-08-15 4 A 0 500 A 10146 D Common Stock 2023-08-15 4 P 0 354 31 A 10500 D Common Stock 2234.0527 D Stock Option (Right to Buy) 30.73 2023-08-15 4 A 0 1500 0 A 2023-08-15 Common Stock 1500 7500 D Represents award of restricted stock pursuant to the FS Bancorp, Inc. 2018 Equity Incentive Plan. Vests on August 15, 2024. Stock Options awarded pursuant to the FS Bancorp, Inc. 2018 Equity Incentive Plan. Vests on August 15, 2024. These shares were purchased in multiple transactions all at $31.00 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commissions, upon request, full information regarding the number of shares purchased at each separate price with the range set forth in footnote (3). /S/ Pamela Marie Andrews 2023-08-17