Key facts
- This page summarizes Matthew Douglas Seath's Form 4 filing for TIMBERLAND BANCORP INC (TSBK).
- 9 reported transactions and 4 derivative rows are listed below.
- Accepted by SEC: 03 Aug 2026, 15:21.
Matthew Douglas Seath - 31 Jul 2026 Form 4 Insider Report for TIMBERLAND BANCORP INC (TSBK)
- Reporting relationship
- Chief Risk Officer/EVP
- Issuer ticker
- TSBK
- Reported as of
- 31 Jul 2026
- Net transaction value
- -$134,250
- SEC form
- 4
- Accepted by SEC
- 03 Aug 2026, 15:21:20 UTC
- Prior SEC filing
- 14 Jan 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/Cheryl Parks, Power of Attorney for Matthew Douglas Seath
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Matthew Douglas Seath filed Form 4 for TIMBERLAND BANCORP INC (TSBK) on 03 Aug 2026.
Change
- Previous filing in this sequence was filed on 14 Jan 2026.
- Current net transaction value: -$134,250.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0002104858
Primary reporting owner
Seath Matthew Douglas
- Relationship
- Chief Risk Officer/EVP
- Address
- 624 SIMPSON AVENUE, HOQUIAM
- Signature
- /s/Cheryl Parks, Power of Attorney for Matthew Douglas Seath
- Signature date
- 03 Aug 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
TSBK
transaction
Common Stock, $.01 par value per share
Options Exercise
- Transaction value
- Shares
- +800
- Change %
- +25%
- Price
- $31.80*
- Shares after
- 3,955
- Date
- 31 Jul 2026
- Ownership
- Direct
TSBK
transaction
Common Stock, $.01 par value per share
Options Exercise
- Transaction value
- Shares
- +800
- Change %
- +20%
- Price
- $27.14*
- Shares after
- 4,755
- Date
- 31 Jul 2026
- Ownership
- Direct
TSBK
transaction
Common Stock, $.01 par value per share
Options Exercise
- Transaction value
- Shares
- +800
- Change %
- +17%
- Price
- $28.23*
- Shares after
- 5,555
- Date
- 31 Jul 2026
- Ownership
- Direct
TSBK
transaction
Common Stock, $.01 par value per share
Options Exercise
- Transaction value
- Shares
- +600
- Change %
- +11%
- Price
- $27.40*
- Shares after
- 6,155
- Date
- 31 Jul 2026
- Ownership
- Direct
TSBK
transaction
Common Stock, $.01 par value per share
Sale
- Transaction value
- $134,250
- Shares
- -3,000
- Change %
- -49%
- Price
- $44.75
- Shares after
- 3,155
- Date
- 31 Jul 2026
- Ownership
- Direct
TSBK
holding
Common Stock, $.01 par value per share
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 2,155
- Date
- 31 Jul 2026
- Ownership
- By KSOP
- Footnotes
- F1
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
TSBK
transaction
Derivative
Stock Options (Right to Buy)
Options Exercise
- Transaction value
- Shares
- -800
- Change %
- -22%
- Price
- $0.000000*
- Shares after
- 2,800
- Date
- 31 Jul 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 800
- Exercise price
- $31.80
TSBK
transaction
Derivative
Stock Options (Right to Buy)
Options Exercise
- Transaction value
- Shares
- -800
- Change %
- -29%
- Price
- $0.000000*
- Shares after
- 2,000
- Date
- 31 Jul 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 800
- Exercise price
- $27.14
TSBK
transaction
Derivative
Stock Options (Right to Buy)
Options Exercise
- Transaction value
- Shares
- -800
- Change %
- -40%
- Price
- $0.000000*
- Shares after
- 1,200
- Date
- 31 Jul 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 800
- Exercise price
- $28.23
- Footnotes
- F2
TSBK
transaction
Derivative
Stock Options (Right to Buy)
Options Exercise
- Transaction value
- Shares
- -600
- Change %
- -50%
- Price
- $0.000000*
- Shares after
- 600
- Date
- 31 Jul 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 600
- Exercise price
- $27.40
- Footnotes
- F2
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 2 footnotes
Footnote F1
Represents shares held in the Timberland Bank Employee Stock Ownership and 401(k) Plan ("KSOP")
Footnote F2
Represents date options will be fully vested