X0306 4 2020-01-31 0001541119 Sound Financial Bancorp, Inc. SFBC 0001639741 Pierce Elliott SOUND FINANCIAL BANCORP, INC. 2400 3RD AVE., SUITE 150 SEATTLE WA 98121 0 1 0 0 EVP/Chief Credit Officer Common Stock 2020-01-31 4 A 0 600 0 A 3842 D Common Stock 1370 I By ESOP Stock Option (Right to Buy) 22.31 2026-01-29 Common Stock 4513 4513 D Stock Option (Right to Buy) 28.34 2027-01-27 Common Stock 6000 6000 D Stock Option (Right to Buy) 33.5 2029-01-25 Common Stock 1500 1500 D Stock Option (Right to Buy) 36.26 2020-01-31 4 A 0 600 0 A 2030-01-31 Common Stock 400 400 D Options vest in five equal annual installments beginning on January 29, 2017. Options vest in three equal annual installments beginning on January 27, 2017. Options vest in five equal annual installments beginning on January 25, 2019. Options vest in three equal annual installments beginning on January 31, 2020. /s/ Laura Lee Stewart, Attorney-in-Fact 2020-02-04