---
schema_version: "secwatch.filing_event.v1"
accession: "0000939057-25-000079"
form_type: "8-K"
ticker: "FSBW"
cik: "0001530249"
company_name: "FS Bancorp, Inc."
filed_at: "2025-04-01T23:59:59+00:00"
generated_at: "2026-05-24T00:44:15.833728+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# FS Bancorp promotes Phillip Whittington to CFO effective May 1, 2025

## Summary
- Phillip Whittington appointed CFO of FS Bancorp and 1st Security Bank, effective May 1, 2025.
- Whittington previously served as Controller since January 2020; succeeds Matthew Mullet.
- Matthew Mullet remains President of both the Company and the Bank, stepping down as CFO.
- Whittington is a CPA with prior experience at Elliott Davis and degrees from College of Charleston and University of South Carolina.

## SEC filing metadata
- accession: 0000939057-25-000079
- form_type: 8-K
- ticker: FSBW
- cik: 0001530249
- company_name: FS Bancorp, Inc.
- filed_at: 2025-04-01T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1530249/000093905725000079/0000939057-25-000079-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1530249/000093905725000079/fsbanc8k4125.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000939057-25-000079
- JSON: https://secwatch.observer/filing/0000939057-25-000079.json
- Plain text: https://secwatch.observer/filing/0000939057-25-000079.txt

## Source-grounded claims
- claim_id: 29576f67e1
  claim: Phillip Whittington was appointed as Chief Financial Officer at FS Bancorp, Inc..
  evidence_excerpt: On April 1, 2025, FS Bancorp, Inc. (“Company”) (NASDAQ: FSBW), the holding company for 1st Security Bank of Washington (“1st Security Bank” or “Bank”) announced that it has named Phillip Whittington as Chief Financial Officer of both the Bank and the Company effective May 1, 2025.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1530249/000093905725000079/0000939057-25-000079-index.htm
- claim_id: fc492e2bc2
  claim: Matthew D. Mullet changed role as Chief Financial Officer at FS Bancorp, Inc..
  evidence_excerpt: Matthew D. Mullet the former Chief Financial Officer and President will continue to serve as President for both the Company and the Bank.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1530249/000093905725000079/0000939057-25-000079-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.