Timberland Bancorp (TSBK) CLO DeBord exercises options and sells shares

Rhea-AI Filing Summary

Timberland Bancorp insider Matthew J. DeBord, Chief Lending Officer and EVP, reported multiple stock option exercises and a share sale in the company’s common stock on 12/15/2025.

He exercised options for 2,000 shares at $29.69, 1,600 shares at $31.8, 1,400 shares at $27.14, and 195 shares at $16.87 per share, each converting into common stock. On the same day, he sold 5,195 shares at a price of $37.51 per share.

After these transactions, he held 5,700 shares of common stock directly and 2,069 shares indirectly through the Timberland Bank Employee Stock Ownership and 401(k) Plan (KSOP). He also reported 5,005 stock options remaining beneficially owned.

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

OMB APPROVAL

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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).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

DeBord Matthew J

(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 Lending Officer, EVP

3. Date of Earliest Transaction (Month/Day/Year)
12/15/2025

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	12/15/2025		M		2,000	A	$29.69	7,700	D
Common Stock, $.01 par value per share	12/15/2025		M		1,600	A	$31.8	9,300	D
Common Stock, $.01 par value per share	12/15/2025		M		1,400	A	$27.14	10,700	D
Common Stock, $.01 par value per share	12/15/2025		M		195	A	$16.87	10,895	D
Common Stok, $.01 par value per share	12/15/2025		S		5,195	D	$37.51	5,700	D
Common Stock, $.01 par value per share								2,069	I	By KSOP(1)

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
Stock Options (Right to Buy)	$29.69	12/15/2025		M			2,000	09/23/2022	09/23/2027	Common Stock	2,000	$0	8,200	D
Stock Options (Right to Buy)	$31.8	12/15/2025		M			1,600	09/25/2022	09/25/2028	Common Stock	1,600	$0	6,600	D
Stock Options (Right to Buy)	$27.14	12/15/2025		M			1,400	09/24/2024	09/24/2029	Common Stock	1,400	$0	5,200	D
Stock Options (Right to Buy)	$16.87	12/15/2025		M			195	09/22/2025	09/22/2030	Common Stock	195	$0	5,005	D

Explanation of Responses:

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

	/s/Cheryl Parks, Power of Attorney for Matthew J. DeBord	12/17/2025
	** 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).
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FAQ

What insider transactions did Timberland Bancorp (TSBK) report for Matthew J. DeBord?

Matthew J. DeBord, Chief Lending Officer and EVP of Timberland Bancorp, reported exercising several stock option grants and selling common shares on 12/15/2025. The filing lists option exercises that converted into common stock and a same-day sale of shares.

How many Timberland Bancorp shares did Matthew J. DeBord sell and at what price?

On 12/15/2025, Matthew J. DeBord sold 5,195 shares of Timberland Bancorp common stock at a price of $37.51 per share.

What stock options did Matthew J. DeBord exercise in Timberland Bancorp (TSBK)?

He exercised options covering 2,000 shares at $29.69, 1,600 shares at $31.8, 1,400 shares at $27.14, and 195 shares at $16.87 per share, each into Timberland Bancorp common stock.

How many Timberland Bancorp shares does Matthew J. DeBord own after these transactions?

Following the reported transactions, Matthew J. DeBord held 5,700 shares of Timberland Bancorp common stock directly and 2,069 shares indirectly through the company’s Employee Stock Ownership and 401(k) Plan (KSOP).

How many Timberland Bancorp stock options does Matthew J. DeBord still hold?

After the option exercises reported on 12/15/2025, Matthew J. DeBord beneficially owned 5,005 remaining stock options on Timberland Bancorp common stock.

What is Matthew J. DeBord’s role at Timberland Bancorp (TSBK)?

In the filing, Matthew J. DeBord is identified as an officer of Timberland Bancorp, serving as Chief Lending Officer, EVP.