X0508 4 2024-03-06 0 0001401564 First Financial Northwest, Inc. FFNW 0001194604 KILEY JOSEPH W III 201 WELLS AVENUE SOUTH RENTON WA 98057 1 1 0 0 President and CEO 0 Common Stock, $0.01 par value 2024-03-06 4 A 0 2208 20.68 A 58916 D Common Stock, $0.01 par value 2024-03-07 4 F 0 4565 20.88 D 54351 D 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 9,135 shares of restricted stock of which 4,565 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 Joseph W. Kiley III 2024-03-08