---
schema_version: "secwatch.filing_event.v1"
accession: "0000943374-25-000155"
form_type: "8-K"
ticker: "MBBC"
cik: "0001835385"
company_name: "Marathon Bancorp, Inc. /MD/"
filed_at: "2025-04-16T23:59:59+00:00"
generated_at: "2026-05-23T13:41:21.636993+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Marathon Bancorp expects conversion & Nasdaq listing to close April 21-22

## Summary
- Conversion of Marathon MHC from mutual to stock form closes after April 21, 2025.
- Company expects to sell 1,693,411 shares at $10.00 each, including 135,472 shares for ESOP.
- After conversion, ~2,942,064 shares outstanding; exchange ratio 1.3728-to-one for existing public holders.
- Common stock begins trading on Nasdaq under 'MBBC' on April 22, 2025.
- Continental Stock Transfer to mail book-entry statements and cash in lieu of fractional shares around April 22.

## SEC filing metadata
- accession: 0000943374-25-000155
- form_type: 8-K
- ticker: MBBC
- cik: 0001835385
- company_name: Marathon Bancorp, Inc. /MD/
- filed_at: 2025-04-16T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1835385/000094337425000155/0000943374-25-000155-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1835385/000094337425000155/form8k_041425.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000943374-25-000155
- JSON: https://secwatch.observer/filing/0000943374-25-000155.json
- Plain text: https://secwatch.observer/filing/0000943374-25-000155.txt

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