[Form 4] FS Bancorp, Inc. Insider Trading Activity

Rhea-AI Filing Summary

FS Bancorp, Inc. director Marina Cofer-Wildsmith reported multiple stock option exercises and a related share disposition in company stock. On 11/13/2025, she exercised options to acquire blocks of common stock at exercise prices of $29.30, $24.37, and $21.35 per share, each coded as an option exercise (transaction code M). The filing also shows a disposition of 5,957 shares of common stock at $40.08 per share, coded as transaction F. Following these reported transactions, one line in the table lists 8,176 shares of FS Bancorp common stock owned directly.

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^*

Cofer-Wildsmith Marina

(Last) (First) (Middle)

C/O FS BANCORP, INC.

6920 220TH STREET SW, SUITE 300

(Street)

MOUNTLAKE TERRACE WA 98043

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
FS Bancorp, Inc. [ FSBW ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
11/13/2025

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

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

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

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	11/13/2025		M		6,783	A	$29.3	12,373	D
Common Stock	11/13/2025		M		800	A	$24.37	13,173	D
Common Stock	11/13/2025		M		960	A	$21.35	14,133	D
Common Stock	11/13/2025		F		5,957	D	$40.08	8,176	D
Common Stock								2,532	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
Stock Options (Right to Buy)	$29.3	11/13/2025		M			6,783	08/15/2019	08/15/2028	Common Stock	6,783	$0	9,260	D
Stock Options (Right to Buy)	$24.37	11/13/2025		M			800	08/15/2020	08/15/2029	Common Stock	800	$0	8,460	D
Stock Options (Right to Buy)	$21.35	11/13/2025		M			960	08/15/2021	08/15/2030	Common Stock	960	$0	7,500	D

Explanation of Responses:

	/s/ Marina Cofer-Wildsmith	11/13/2025
	** 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.

FAQ

What insider transaction did FS Bancorp (FSBW) report for Marina Cofer-Wildsmith?

The filing reports that director Marina Cofer-Wildsmith exercised multiple stock options and reported a related share disposition in FS Bancorp, Inc. common stock on 11/13/2025.

When did the FS Bancorp (FSBW) insider transactions take place?

The reported option exercises and share disposition by director Marina Cofer-Wildsmith took place on 11/13/2025, as shown in the transaction table.

What exercise prices were used for the FS Bancorp (FSBW) stock options?

The director exercised stock options with exercise prices of $29.30, $24.37, and $21.35 per share, each recorded as a separate transaction coded M.

How many FS Bancorp (FSBW) shares were disposed of in the insider filing?

The filing shows a transaction coded F for the disposition of 5,957 shares of FS Bancorp common stock at a price of $40.08 per share.

How many FS Bancorp (FSBW) shares does the filing show as owned directly after the transactions?

After the reported transactions, one line in the table lists 8,176 shares of FS Bancorp common stock as owned directly by the reporting person.

Does the FS Bancorp (FSBW) Form 4 reference Rule 10b5-1 trading plans?

The form includes a checkbox to indicate whether a transaction was made under a Rule 10b5-1(c) trading plan, but the excerpt only shows the presence of this checkbox, not whether it was selected.