---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-142104"
form_type: "8-K"
ticker: "MTB"
cik: "0000036270"
company_name: "M&T BANK CORP"
filed_at: "2025-06-17T23:59:59+00:00"
generated_at: "2026-05-19T05:29:14.202044+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# M&T Bank closes $750M 5.179% senior notes offering due 2031

## Summary
- Issued $750M aggregate principal of 5.179% Fixed Rate/Floating Rate Senior Notes.
- Notes mature July 8, 2031; offering closed on June 17, 2025.
- Senior Medium-Term Notes registered under Form S-3; legal opinion filed.

## SEC filing metadata
- accession: 0001193125-25-142104
- form_type: 8-K
- ticker: MTB
- cik: 0000036270
- company_name: M&T BANK CORP
- filed_at: 2025-06-17T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/36270/000119312525142104/0001193125-25-142104-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/36270/000119312525142104/d37705d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-142104
- JSON: https://secwatch.observer/filing/0001193125-25-142104.json
- Plain text: https://secwatch.observer/filing/0001193125-25-142104.txt

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