Timberland Bancorp (TSBK) lending chief sells 3,805 shares after option exercises

Rhea-AI Filing Summary

Timberland Bancorp’s Chief Lending Officer Matthew J. DeBord reported option exercises and a share sale. On February 2, 2026, he exercised stock options for 1,005, 1,600, and 1,200 shares at exercise prices of $16.87, $28.23, and $27.40 per share, respectively, acquiring the same number of common shares.

On the same date, he sold 3,805 common shares at an average price of $39.53 per share. After these transactions, he directly owned 5,700 common shares and indirectly held 2,069 shares through the Timberland Bank Employee Stock Ownership and 401(k) Plan ("KSOP").

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)
02/02/2026

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	02/02/2026		M		1,005	A	$16.87	6,705	D
Common Stock, $.01 par value per share	02/02/2026		M		1,600	A	$28.23	8,305	D
Common Stock, $.01 par value per share	02/02/2026		M		1,200	A	$27.4	9,505	D
Common Stock, $.01 par value per share	02/02/2026		S		3,805	D	$39.53	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)	$16.87	02/02/2026		M			1,005	09/22/2025	09/22/2030	Common Stock	1,005	$0	4,000	D
Stock Options (Right to Buy)	$28.23	02/02/2026		M			1,600	09/28/2026	09/28/2031	Common Stock	1,600	$0	2,400	D
Stock Options (Right to Buy)	$27.4	02/02/2026		M			1,200	09/27/2027	09/27/2032	Common Stock	1,200	$0	1,200	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	02/02/2026
	** 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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FAQ

What insider transaction did TSBK executive Matthew J. DeBord report?

Matthew J. DeBord reported exercising stock options and selling common shares. On February 2, 2026 he exercised options for 3,805 shares total and then sold 3,805 Timberland Bancorp common shares at an average price of $39.53 per share.

How many Timberland Bancorp (TSBK) shares did the insider sell and at what price?

The insider sold 3,805 Timberland Bancorp common shares. The reported sale price was $39.53 per share on February 2, 2026, following the exercise of previously granted stock options that delivered the same number of common shares.

What stock options did the TSBK officer exercise in this Form 4 filing?

The officer exercised three stock option grants into common shares. These covered 1,005 shares at $16.87, 1,600 shares at $28.23, and 1,200 shares at $27.40 per share, all on February 2, 2026, resulting in equivalent common share acquisitions.

How many Timberland Bancorp (TSBK) shares does Matthew J. DeBord own after the transactions?

After the reported transactions, he directly owned 5,700 Timberland Bancorp common shares. In addition, he indirectly held 2,069 shares through the Timberland Bank Employee Stock Ownership and 401(k) Plan, referred to in the filing as the KSOP.

What is the KSOP mentioned in the Timberland Bancorp (TSBK) Form 4 filing?

The KSOP is the Timberland Bank Employee Stock Ownership and 401(k) Plan. The filing states that 2,069 Timberland Bancorp common shares are held for Matthew J. DeBord in this plan, and these are reported as indirectly owned shares.

What derivative securities did the TSBK executive still hold after exercising options?

Following the option exercises, he retained stock options on additional Timberland Bancorp shares. The filing shows remaining stock options covering 4,000, 2,400, and 1,200 underlying common shares at exercise prices of $16.87, $28.23, and $27.40, respectively.