[Form 4] TIMBERLAND BANCORP INC Insider Trading Activity

Rhea-AI Filing Summary

Breanne D. Antich, Chief Technology Officer/EVP of Timberland Bancorp Inc. (TSBK), reported a routine vesting and tax-withholding transaction. On 09/26/2025, 200 restricted shares vested; 64 of those vested shares were withheld by the issuer at the reporting person's election to cover state and federal taxes, at an indicated price of $34.20 per share. After the transaction, the reporting person directly beneficially owned 4,189 shares and indirectly owned 4,174 shares through the Timberland Bank Employee Stock Ownership and 401(k) Plan (KSOP).

The Form 4 was signed by a power of attorney on 09/29/2025. The filing discloses no option exercises, open-market trades, or other derivative activity; the disclosure is limited to the restricted stock vesting and tax withholding only.

Insights

Securities Analyst

TL;DR: Routine restricted stock vesting with tax-withholding; no material change to insider ownership or market exposure.

The Form 4 reports 200 restricted shares vesting with 64 shares withheld to satisfy tax obligations, leaving the reporting person with 4,189 shares directly and 4,174 indirectly via the KSOP. This is a standard administrative action that reduces the insider's share count only to satisfy taxes and does not reflect a discretionary sale or acquisition that would signal a change in insider sentiment.

Corporate Governance Expert

TL;DR: Administrative withholding for taxes on vested awards; disclosure aligns with Section 16 reporting requirements.

The filing correctly discloses the vesting event and corresponding withholding election. Ownership remains split between direct holdings and KSOP participation. There are no indications of accelerated vesting, unusual transfers, or related-party transactions. From a governance perspective, this is a routine compliance disclosure.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Antich Breanne D

(Last) (First) (Middle)

624 SIMPSON AVENUE

(Street)

HOQUIAM WA 98550

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
TIMBERLAND BANCORP INC [ TSBK ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Technology Officer/EVP

3. Date of Earliest Transaction (Month/Day/Year)
09/26/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, $.01 par value per share(1)	09/26/2025		F		64	D	$34.2	4,189	D
Common Stock, $.01 par value per share								4,174	I	By KSOP(2)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. As previously reported 200 shares of restricted stock vested on September 26, 2025 of which 64 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.

2. Represents shares held in the Timberland Bank Employee Stock Ownership and 401(k) Plan ("KSOP")

	/s/Cheryl Parks, Power of Attorney for Breanne D. Antich	09/29/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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