X0306 4 2022-06-09 0 0001401564 First Financial Northwest, Inc. FFNW 0001186226 JACOBSON RICHARD P 201 WELLS AVENUE SOUTH RENTON WA 98057 1 1 0 0 Executive VP and CFO Common Stock, $0.01 par value 2022-06-09 4 M 0 2481 10.88 A 32237 D Common Stock, $0.01 par value 2022-06-09 4 S 0 2481 16.5985 D 29756 D Stock Options (Right to Buy) 10.88 2022-06-09 4 M 0 2481 0 D 2023-07-17 Common Stock 2481 82519 D The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.50 to $16.68 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 Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in the footnote (I). Vested in equal installments of 20% per year beginning on July 17, 2014 and ending on July 17, 2018. /s/Karla Evans as Power of Attorney for Richard P. Jacobson 2022-06-13