X0306 4 2022-11-22 0001541119 Sound Financial Bancorp, Inc. SFBC 0001410553 Carney Robert F C/O SOUND FINANCIAL BANCORP, INC. 2400 3RD AVENUE, SUITE 150 SEATTLE WA 98121 1 Common Stock 2022-11-22 4 S 0 1000 40.15 D 6484 D Common Stock 4731 I BY IRA Stock Option (Right to Buy) 16.8000 2024-01-23 Common Stock 1925 1925 D Stock Option (Right to Buy) 18.3600 2025-01-28 Common Stock 862 862 D Stock Option (Right to Buy) 33.5000 2029-01-25 Common Stock 250 250 D Stock Option (Right to Buy) 36.2600 2030-01-21 Common Stock 120 120 D Stock Option (Right to Buy) 42.8500 2032-01-28 Common Stock 320 320 D Stock Option Class A Voting Common Stock 32.4600 2031-01-27 Common Stock 300 300 D Options are fully exercisable. Options vest in five equal annual installments beginning on January 25, 2019. Options vest in four equal annual installments beginning on January 31, 2020. Options vest in four equal annual installments beginning on January 27, 2021. Options vest in four equal annual installments beginning on January 28, 2022. /s/ Laura Lee Stewart, Attorney-in-Fact 2022-11-22