Timberland Bancorp awards Sakamoto 1,400 shares

The restricted shares will vest in equal portions over five years.

Rhea-AI Filing Summary

Timberland Bancorp Inc. (TSBK) Chief Credit Officer/SVP Kevin John Sakamoto received a 1,400-share restricted stock award on September 29, 2026. The shares will vest equally over five years. Following the award, he directly held 2,950 shares and reported 15 shares held indirectly through the Timberland Bank Employee Stock Ownership and 401(k) Plan (KSOP).

Insider Trade Summary

Grant/Award: 1,400 shares

Grant/Award 2 txns

Insider Sakamoto Kevin John

Role Chief Credit Officer/SVP

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, $.01 par value F1	1,400	$0.00	$0.00
holding	Common Stock, $.01 par value F2	--	--	--

Holdings After Transaction: Common Stock, $.01 par value — 2,950 shares (Direct); Common Stock, $.01 par value — 15 shares (Indirect, By KSOP)

Footnotes (2)

1. F1. Restricted Stock Award was granted on 9/29/2026. These shares will vest equally over 5 years.
2. F2. Represents shares held in the Timberland Bank Employee Stock Ownership and 401(k) Plan ("KSOP").

Key Figures

Restricted stock award: 1,400 shares Vesting period: 5 years Direct shares following award: 2,950 shares +1 more

4 metrics

Restricted stock award 1,400 shares Awarded September 29, 2026

Vesting period 5 years Shares vest equally

Direct shares following award 2,950 shares Reported September 29, 2026

Shares held through KSOP 15 shares Indirect holdings reported September 29, 2026

Key Terms

Restricted Stock Award, vest, KSOP

3 terms

Restricted Stock Award financial

"Restricted Stock Award was granted"

A restricted stock award is company shares given to an employee or executive that cannot be sold or fully owned until certain conditions—like staying with the company for a set time or hitting performance targets—are met. Think of it as a gift that only becomes yours after you fulfill specific obligations; for investors, these awards matter because they can increase the total shares outstanding when they vest, reveal how management is being paid and motivated, and create potential selling pressure when restrictions lift.

vest financial

"These shares will vest equally over 5 years"

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

KSOP financial

"Employee Stock Ownership and 401(k) Plan ("KSOP")"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many shares did TSBK's Chief Credit Officer receive?

Kevin John Sakamoto received a 1,400-share restricted stock award on September 29, 2026, with the shares vesting equally over five years.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/01/2026 - 02:08 PM Accepted by SEC EDGAR 10/01/2026 - 02:07 PM Learn about SEC filing dates

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

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

Sakamoto Kevin John

(Last) (First) (Middle)

624 SIMPSON AVENUE

(Street)

HOQUIAM WASHINGTON 98550

(City) (State) (Zip)

UNITED STATES

(Country)

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 Credit Officer/SVP

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/29/2026

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

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

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

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(1)	09/29/2026		A		1,400	A	$0	2,950	D
Common Stock, $.01 par value								15	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. Restricted Stock Award was granted on 9/29/2026. These shares will vest equally over 5 years.

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

	/s/Cheryl Parks, Power of Attorney for Kevin J. Sakamoto	10/01/2026
	** 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)