Timberland Bancorp (TSBK) CFO Basich exercises 477 options and sells 477 shares

Rhea-AI Filing Summary

Timberland Bancorp’s Chief Financial Officer and Executive Vice President, Marci A. Basich, reported an option exercise and matching stock sale. On February 5, 2026, she exercised 477 stock options at $28.23 per share and acquired the same number of common shares.

On the same day, Basich sold 477 common shares at a price of $39.50 per share. Following these transactions, she directly held 4,800 common shares and had an additional 12,384 common shares held indirectly 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^*

BASICH MARCI A

(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 Financial Officer/EVP

3. Date of Earliest Transaction (Month/Day/Year)
02/05/2026

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	02/05/2026		M		477	A	$28.23	5,277	D
Common Stock, $0.01 par value per share	02/05/2026		S		477	D	$39.5	4,800	D
Common Stock, $.01 par value per share								12,384	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)	$28.23	02/05/2026		M			477	09/28/2026(2)	09/28/2031	Common Stock	477	$0	2,800	D

Explanation of Responses:

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

2. Represents date options will be fully vested.

	/s/Cheryl Parks, Power of Attorney for Marci A. Basich	02/06/2026
	** 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 Timberland Bancorp (TSBK) report for Marci A. Basich?

Timberland Bancorp reported that CFO/EVP Marci A. Basich exercised 477 stock options and sold 477 common shares on February 5, 2026. These transactions involved company common stock with a par value of $0.01 per share, as disclosed in the Form 4 filing.

At what prices did Marci A. Basich exercise and sell Timberland Bancorp (TSBK) shares?

Basich exercised 477 stock options at an exercise price of $28.23 per share and sold 477 common shares at $39.50 per share. Both transactions occurred on February 5, 2026, and involved Timberland Bancorp common stock, according to the Form 4.

How many Timberland Bancorp (TSBK) shares does Marci A. Basich own after the reported transactions?

After the transactions, Basich directly owned 4,800 Timberland Bancorp common shares. She also had an indirect interest in 12,384 common shares held through the Timberland Bank Employee Stock Ownership and 401(k) Plan (KSOP), as detailed in the filing footnotes.

What stock options did Marci A. Basich exercise in the Timberland Bancorp (TSBK) Form 4?

Basich exercised 477 stock options, each giving the right to buy one Timberland Bancorp common share at $28.23. The options are scheduled to be fully vested on September 28, 2026, and expire on September 28, 2031, based on the disclosure.

What is the role of the KSOP in Marci A. Basich’s Timberland Bancorp (TSBK) holdings?

The KSOP is Timberland Bank’s Employee Stock Ownership and 401(k) Plan. The filing notes that 12,384 Timberland Bancorp common shares are held for Basich indirectly through this KSOP, separate from the 4,800 shares she owns directly after the reported transactions.

What position does Marci A. Basich hold at Timberland Bancorp (TSBK) in this Form 4?

In the Form 4, Marci A. Basich is identified as an officer of Timberland Bancorp, serving as Chief Financial Officer and Executive Vice President. She is not listed as a director or 10% owner in the relationship section of the filing.