---
schema_version: "secwatch.filing_event.v1"
accession: "0000943374-25-000141"
form_type: "8-K"
ticker: "MBBC"
cik: "0001835385"
company_name: "Marathon Bancorp, Inc. /MD/"
filed_at: "2025-03-31T23:59:59+00:00"
generated_at: "2026-05-24T02:19:50.098210+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Marathon Bancorp completes $16.9M community offering; conversion approvals received

## Summary
- Community offering completed with orders for ~$16.9M of common stock (1,650,000 shares), slightly above midpoint of offering range.
- Stockholders and MHC members approved conversion from mutual to stock holding structure at March 31 special meetings.
- Closing remains subject to customary regulatory approvals and conditions; final closing date to be announced.

## SEC filing metadata
- accession: 0000943374-25-000141
- form_type: 8-K
- ticker: MBBC
- cik: 0001835385
- company_name: Marathon Bancorp, Inc. /MD/
- filed_at: 2025-03-31T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.07, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1835385/000094337425000141/0000943374-25-000141-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1835385/000094337425000141/form8k_033125.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000943374-25-000141
- JSON: https://secwatch.observer/filing/0000943374-25-000141.json
- Plain text: https://secwatch.observer/filing/0000943374-25-000141.txt

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