X0508 4 2024-03-06 0 0001401564 First Financial Northwest, Inc. FFNW 0001560623 Soh Simon 201 WELLS AVENUE SOUTH RENTON WA 98057 0 1 0 0 Senior VP/CCO of the FFNW Bank 0 Common Stock, $0.01 par value 2024-03-06 4 A 0 698 20.68 A 37200 D Common Stock, $0.01 par value 2024-03-07 4 F 0 1391 20.88 D 35809 D Common Stock, $0.01 par value 11000 I Thru IRA Restricted stock awarded to the Reporting Person pursuant to the First Financial Northwest 2016 Equity Incentive Plan. The restricted stock fully vests upon a one-year cliff vest, subject to certain clawback provisions. Reflects vesting of 2,782 shares of restricted stock of which 1,391 shares were withheld at the election of the Reporting Person for Issuer to pay the value of the vested shares to state and federal tax authorities for the Reporting Person's account. /s/Karla Evans as Power of Attorney for Sim Soh 2024-03-08