X0609 4 2026-09-23 0 0001046050 TIMBERLAND BANCORP INC TSBK 0001251575 BASICH MARCI A false 624 SIMPSON AVENUE HOQUIAM WA 98550 0 1 0 0 Chief Financial Officer 0 Common Stock, $.01 par value 2026-09-23 4 F 0 135 44.82 D 4665 D Common Stock, $.01 par value 2026-09-24 4 F 0 100 45.1 D 4565 D As previously reported 400 shares of restricted stock vested on September 23, 2026, of which 135 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. As previously reported 320 shares of restricted stock vested on September 24, 2026, of which 100 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/Cheryl Parks, Power of Attorney for Marci A. Basich 2026-09-25