Timberland Bancorp risk chief has 135 shares withheld

The share withholdings were used for state and federal tax payments tied to restricted-stock vesting.

Rhea-AI Filing Summary

TIMBERLAND BANCORP INC (TSBK) Chief Risk Officer/EVP Seath Matthew Douglas had 75 shares withheld from 250 restricted shares that vested September 23, 2026, and 60 shares withheld from 200 restricted shares that vested September 24, 2026. The withholdings were at his election for the issuer to pay state and federal tax authorities for his account. Reported per-share values were $44.82 and $45.10, respectively. No Rule 10b5-1 plan is reported.

Insider Trade Summary

Tax Withholding: 135 shares

Tax Withholding 2 txns

Insider Seath Matthew Douglas

Role Chief Risk Officer/EVP

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock, $.01 par value F2	60	$45.10	$3K
Tax Withholding	Common Stock, $.01 par value F1	75	$44.82	$3K

Holdings After Transaction: Common Stock, $.01 par value — 3,020 shares (Direct)

Footnotes (2)

1. F1. As previously reported 250 shares of restricted stock vested on September 23. 2026, of which 75 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. F2. As previously reported 200 shares of restricted stock vested on September 24, 2026, of which 60 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.

Key Figures

Restricted shares vested: 250 shares Shares withheld: 75 shares Reported per-share value: $44.82 per share +3 more

6 metrics

Restricted shares vested 250 shares September 23, 2026

Shares withheld 75 shares September 23, 2026; for state and federal tax payments

Reported per-share value $44.82 per share 75 shares withheld on September 23, 2026

Restricted shares vested 200 shares September 24, 2026

Shares withheld 60 shares September 24, 2026; for state and federal tax payments

Reported per-share value $45.10 per share 60 shares withheld on September 24, 2026

Key Terms

restricted stock, vested, par value

3 terms

restricted stock financial

"250 shares of restricted stock vested"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

vested financial

"250 shares of restricted stock vested"

par value financial

"Common Stock, $.01 par value"

Par value is the fixed amount printed on a bond or stock that represents its original value when issued. It’s like the face value of a coin or bill—what the issuer promises to pay back or the starting price of a stock—though it often doesn’t change with market prices. It matters because it helps determine certain financial details, like how much the company will pay back at maturity.

FAQ

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

How many TSBK shares were withheld for taxes?

Seath Matthew Douglas, TIMBERLAND BANCORP INC's Chief Risk Officer/EVP, had 75 shares withheld on September 23, 2026, and 60 shares withheld on September 24, 2026. The withholdings related to restricted stock vesting.

What per-share values were reported for TSBK's share withholdings?

The reported per-share values were $44.82 for the 75 shares withheld on September 23, 2026, and $45.10 for the 60 shares withheld on September 24, 2026.

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

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Available on EDGAR 09/25/2026 - 12:57 PM Accepted by SEC EDGAR 09/25/2026 - 12:56 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^*

Seath Matthew Douglas

(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 Risk Officer/EVP

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/23/2026

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)	09/23/2026		F		75	D	$44.82	3,080	D
Common Stock, $.01 par value(2)	09/24/2026		F		60	D	$45.1	3,020	D

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 250 shares of restricted stock vested on September 23. 2026, of which 75 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. As previously reported 200 shares of restricted stock vested on September 24, 2026, of which 60 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.

	/s/Cheryl Parks, Power of Attorney for Matthew D. Seath	09/23/2026
	** 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)