Matthew D. Seath - 13 Jan 2026 Form 3 Insider Report for TIMBERLAND BANCORP INC (TSBK)

Role
Chief Risk Officer/SVP
Signature
/s/Cheryl Parks, Power of Attorney for Matthew D. Seath
Issuer symbol
TSBK
Transactions as of
13 Jan 2026
Net transactions value
$0
Form type
3
Filing time
14 Jan 2026, 08:32:50 UTC
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Seath Matthew Douglas Chief Risk Officer/SVP 624 SIMPSON AVENUE, HOQUIAM /s/Cheryl Parks, Power of Attorney for Matthew D. Seath 13 Jan 2026 0002104858

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding TSBK Common Stock, $0.01 par value per share 3,155 13 Jan 2026 Direct
holding TSBK Common Stock, $0.01 par value per share 2,155 13 Jan 2026 By KSOP F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
holding TSBK Stock options (right to buy) 13 Jan 2026 Common Stock, $0.01 par value per share 800 $31.80 Direct F2
holding TSBK Stock options (right to buy) 13 Jan 2026 Common Stock, $0.01 par value per share 800 $27.14 Direct F3
holding TSBK Stock options (right to buy) 13 Jan 2026 Common Stock, $0.01 par value per share 1,000 $28.23 Direct F4
holding TSBK Stock options (right to buy) 13 Jan 2026 Common Stock, $0.01 par value per share 1,000 $27.40 Direct F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents shares held in the Timberland Bank Employee Stock Ownership and 401(k) Plan ("KSOP")
F2 Stock options granted 9/25/2018. These options vested at 20% per annum
F3 Stock options granted 9/24/2019. These options vested at 20% per annum
F4 Stock options granted 9/28/2021. These options will vest at 20% per annum
F5 Stock options granted 9/27/2022. These options will vest at 20% per annum