FS Bancorp, Inc.

Savings Institutions, Not Federally Chartered

FSBW Banks & Consumer Finance People in Banks & Consumer Finance SEC CIK 0001530249 ↗

Computed from SEC EDGAR filings and closing prices — not copied from any wealth ranking. Dataset . How we calculate this.

Market capitalisation
$340.43M
7,431,972 shares Covers every share class this company has on file.
Insiders on file
7
people who have filed Form 3, 4 or 5 naming this issuer
Value of insider-held stock
$25.90M
from the holdings reported on Forms 3/4/5; this figure has no separate as-of date on file
Insider-held share of market cap
7.61%
insider-held value divided by market capitalisation

What FS Bancorp, Inc. reports

Revenue and net income below are for fiscal period FY2023, the period label carried by this company’s own annual XBRL filings to the SEC. Fiscal years do not line up between companies — one company’s FY2026 can cover much the same months as another’s FY2025 — so compare the periods, not just the numbers.

Revenue
$4.61M
FY2023 annual revenue, from this company’s own annual XBRL filings to the SEC
Net income
$33.30M
FY2023 profit for the period, from this company’s own annual XBRL filings to the SEC
Employees
593
Yahoo Finance
Where the employee count comes from

Headcount comes from Yahoo Finance, not from a filing. The date beside it is the day we retrieved the figure — it is not the date the company counted its staff, and Yahoo does not publish that date. Unlike the SEC filings behind the other figures on this page, this one carries no open licence, so we publish the number and nothing else from that source.

Insiders at FS Bancorp, Inc.

Shares is what each person last reported holding here.

Everyone below has filed at least one insider report against this company.

Value is that share count priced at the same closing price used everywhere else on this site. A row priced from only some of a person’s securities says so — we do not quietly present a partial sum as a complete one.

Rows are grouped by the role each person reports.

The role comes from the relationship boxes a person ticks on their own insider filings — officer, director, ten per cent owner — not from anything we infer. Somebody who is both an officer and a director appears once, in the combined group, so the row count still matches the figure at the top of this page. Where no filing states a role we say so instead of guessing one.

People who file insider reports against FS Bancorp, Inc..
Insider Reported role Shares Value Last action
Officers 4
Matthew D Mullet CEO 146,321 $6.42M F Shares withheld for taxes Aug 14, 2026 position reported
Donn C. Costa EVP 90,238 $3.96M J Other acquisition or disposition May 6, 2026 position reported
Erin Burr EVP 38,223 $1.68M F Shares withheld for taxes Aug 14, 2026 position reported
Victoria Jarman EVP 29,448 $1.29M A Grant or award Aug 14, 2026 position reported
Officers who also sit on the board 1
Joseph C Adams CEO 117,592 $5.16M F Shares withheld for taxes Aug 14, 2026 position reported
Directors 2
Michael J Mansfield Board Member 88,902 $3.90M A Grant or award Aug 14, 2026 position reported
Ted A Leech Board Member 79,446 $3.49M A Grant or award Aug 14, 2026 position reported

Recent insider transactions

Of the 110 rows we hold, 0 are open-market purchases and 5 open-market sales (S) — the only codes we count as buying or selling.

The rest — awards, shares withheld to pay tax, option exercises, gifts and so on — follow from an employment contract or a transfer arranged off-market, not from a decision to buy or sell, so counting them would turn this into a pay table.

A price of 0.00 is a real reported figure on gifts (G) and share awards (A) — not a gap in our data.

Insider transactions disclosed to the SEC for FS Bancorp, Inc., newest first, each with the filing behind it.
Date Insider Transaction Shares Price Value Filing
Aug 14, 2026 Michael J Mansfield A Grant or award 1,200 $0.00 $0 SEC filing ↗
Aug 14, 2026 Victoria Jarman A Grant or award 2,957 $0.00 $0 SEC filing ↗
Aug 14, 2026 Matthew D Mullet F Shares withheld for taxes 1,970 $43.48 $85.7K SEC filing ↗
Aug 14, 2026 Matthew D Mullet A Grant or award 8,046 $0.00 $0 SEC filing ↗
Aug 14, 2026 Erin Burr F Shares withheld for taxes 649 $43.48 $28.2K SEC filing ↗
Aug 14, 2026 Erin Burr A Grant or award 2,989 $0.00 $0 SEC filing ↗
Aug 14, 2026 Joseph C Adams F Shares withheld for taxes 2,699 $43.48 $117.4K SEC filing ↗
Aug 14, 2026 Joseph C Adams A Grant or award 1,200 $0.00 $0 SEC filing ↗
Aug 14, 2026 Ted A Leech A Grant or award 1,200 $0.00 $0 SEC filing ↗
Aug 6, 2026 Victoria Jarman J Other acquisition or disposition 87 $43.27 $3.8K SEC filing ↗
Aug 6, 2026 Matthew D Mullet J Other acquisition or disposition 208 $43.27 $9.0K SEC filing ↗
Aug 6, 2026 Ted A Leech J Other acquisition or disposition 202 $43.27 $8.8K SEC filing ↗
Aug 6, 2026 Erin Burr J Other acquisition or disposition 208 $43.27 $9.0K SEC filing ↗
Aug 6, 2026 Joseph C Adams J Other acquisition or disposition 116 $43.27 $5.0K SEC filing ↗
May 6, 2026 Donn C. Costa J Other acquisition or disposition 330 $41.37 $13.7K SEC filing ↗
May 6, 2026 Matthew D Mullet J Other acquisition or disposition 218 $41.37 $9.0K SEC filing ↗
May 6, 2026 Michael J Mansfield J Other acquisition or disposition 423 $41.37 $17.5K SEC filing ↗
May 6, 2026 Ted A Leech J Other acquisition or disposition 212 $41.37 $8.8K SEC filing ↗
May 6, 2026 Victoria Jarman J Other acquisition or disposition 91 $41.37 $3.8K SEC filing ↗
May 6, 2026 Joseph C Adams J Other acquisition or disposition 181 $41.37 $7.5K SEC filing ↗
May 6, 2026 Erin Burr J Other acquisition or disposition 218 $41.37 $9.0K SEC filing ↗
Feb 6, 2026 Erin Burr J Other acquisition or disposition 213 $42.28 $9.0K SEC filing ↗
Feb 6, 2026 Michael J Mansfield J Other acquisition or disposition 414 $42.28 $17.5K SEC filing ↗
Feb 6, 2026 Ted A Leech J Other acquisition or disposition 207 $42.28 $8.8K SEC filing ↗
Feb 6, 2026 Matthew D Mullet J Other acquisition or disposition 213 $42.28 $9.0K SEC filing ↗

From SEC Form 4 filings. Every row links to the filing it came from. How we calculate this.

What a Form 4 is

The report an officer, director or large shareholder must file after trading their own company’s stock.

Subsidiaries — 2 legal entities

Subsidiaries of FS Bancorp, Inc.

2 legal entities named in the subsidiary exhibit filed with this company’s most recent 10-K. . Filing on SEC.gov.

This is not the full list. SEC rules only require a company to name its significant subsidiaries.

What that leaves out

Smaller entities are left out of the exhibit entirely. A short list here means a short exhibit — it does not mean the company owns nothing else. Nothing on this page is inferred: every name below is copied from the filing.

Subsidiaries FS Bancorp, Inc. names in its most recent annual report, with the place each one is organised.
Subsidiary Organised in
1st Security Bank of Washington (b) Washington
FS Service Corporation , a wholly owned subsidiary, which is inactive.
What counts as a subsidiary

A subsidiary is a separate legal entity this company controls; it is not the same thing as a brand, a division or an office. These entities do not file with the SEC in their own right, so there is no separate page to open for them.

Think a number here is wrong? Open the linked filing and compare — how to report it.

Sources and technical notes

Every figure on this page comes from filings to the U.S. SEC via EDGAR. Nothing here is estimated, and nothing is taken from press coverage or company websites.

Share count: cover page of the latest filing (dei:EntityCommonStockSharesOutstanding), taken from FS Bancorp, Inc.’s own filings and multiplied by our closing price. Full method.

What that share count means

the share count the company itself prints on the cover of its most recent filing, as of the date it signed that filing.

We do not take a market cap from a data vendor, and we do not estimate one: the figure is a share count from FS Bancorp, Inc.’s own SEC filings multiplied by the closing price we hold for the same stock.