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BCS

Changes in Beneficial Ownership · 4

FS Bancorp, Inc.

FSBWNASDAQEQUITYCurrent

Changes in Beneficial Ownership

Filed Oct 28, 2026Accepted Oct 28, 2026, 11:54 AM EDTFiling CIK 1530249Accession 0000939057-26-000280
Share

Structured filing — 4

primary_doc.xml

Open full document ↗

Filing details

Report period
2026-10-26
Issuer
FS Bancorp, Inc.
Issuer CIK
0001530249
Trading symbol
FSBW

Reporting owner 1

Name
COSTA DONN C
Reporting owner CIK
0001368203
Relationship
Officer
Officer title
Chief Home Lending, EVP
Address
6920 220TH STREET SW, MOUNTLAKE TERRACE, WA, 98043

Non-derivative transactions

Non-derivative transactions · 2 reported rows
SecurityTransaction dateCodeAmountA / DPrice (USD)Owned afterOwnership
Common Stock2026-10-26M · Form 436,800A29.3112,972D
Common Stock2026-10-26F · Form 436,800D43.7776,172D
Table key
M · Form 4
Exempt derivative exercise or conversion under Rule 16b-3
A
Acquired
D
Direct
F · Form 4
Securities delivered or withheld for exercise price or tax liability under Rule 16b-3

Non-derivative holdings

Non-derivative holdings · 2 reported rows
SecurityAmount ownedOwnershipNature of ownership
Common Stock5,089D
Common Stock9,307IBy ESOP
Table key
D
Direct
I
Indirect

Derivative transactions

Derivative transactions · 1 reported row
SecurityConversion / exercise price (USD)Transaction dateCodeAmountA / DPrice (USD)ExercisableExpiresUnderlying securityUnderlying sharesOwned afterOwnership
Stock Option (Right to Buy)29.32026-10-26M · Form 436,800D02019-08-152028-08-15Common Stock36,80024,810D
Table key
M · Form 4
Exempt derivative exercise or conversion under Rule 16b-3
D
Direct

Signature 1

Signed
/s/ Donn C. Costa
Date
2026-10-27

Company context

Current securities

Recent company filings

  1. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory ArrangementsOct 23, 2026
  2. Results of Operations and Financial Condition · Other EventsOct 21, 2026
  3. 4 filingAug 31, 2026
  4. 4 filingAug 28, 2026
  5. Other EventsAug 24, 2026

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