---
schema_version: "secwatch.filing_event.v1"
accession: "0001849867-26-000005"
form_type: "8-K"
ticker: "CLST"
cik: "0001849867"
company_name: "Catalyst Bancorp, Inc."
filed_at: "2026-04-08T23:59:59+00:00"
generated_at: "2026-05-15T06:55:39.452459+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.9
calibrated_materiality_score: 0.9
confidence: "high"
source: SEC EDGAR
---

# Catalyst Bancorp to acquire Lakeside Bancshares for $41.1M ($19.58/sh) all-cash

## Summary
- Catalyst Bancorp (CLST) to acquire Lakeside Bancshares (LKSB) for $19.58/share, $41.1M aggregate cash.
- Transaction expected to close Q3 2026, subject to shareholder and regulatory approvals.
- Combined pro forma assets ~$627M, loans ~$400M, deposits ~$470M.
- Deal >180% EPS accretive once cost savings realized; TBV accretive within 3 years.
- No additional capital needed; leverage ratio ~10.4%, total risk-based capital ~15.4% post-close.

## SEC filing metadata
- accession: 0001849867-26-000005
- form_type: 8-K
- ticker: CLST
- cik: 0001849867
- company_name: Catalyst Bancorp, Inc.
- filed_at: 2026-04-08T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.9
- calibrated_materiality_score: 0.9
- confidence: high
- sec_items: 1.01, 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1849867/000184986726000005/0001849867-26-000005-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1849867/000184986726000005/clst-20260407x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001849867-26-000005
- JSON: https://secwatch.observer/filing/0001849867-26-000005.json
- Plain text: https://secwatch.observer/filing/0001849867-26-000005.txt

## Source-grounded claims
- claim_id: c604e13d7c61d33b5e966c1062ee08222ffdb8aa
  claim: Catalyst Bancorp, Inc. entered into Agreement and Plan of Share Exchange and Merger with Lakeside Bancshares, Inc. valued at $19.58 in cash per share, or $41.1 million in aggregate (effective 2026-04-07).
  evidence_excerpt: On, April 7, 2026, Catalyst Bancorp, Inc., a Louisiana corporation ("Catalyst Bancorp"), and Catalyst Bank, a federally-chartered savings bank and wholly-owned subsidiary of Catalyst Bancorp, entered into an Agreement and Plan of Share Exchange and Merger (the “Merger Agreement”) with Lakeside Bancshares, Inc., a Louisiana corporation ("Lakeside Bancshares"), and Lakeside Bank, a Louisiana banking corporation and the wholly-owned subsidiary of Lakeside Bancshares.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1849867/000184986726000005/0001849867-26-000005-index.htm

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