---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-169297"
form_type: "8-K"
ticker: "MTB"
cik: "0000036270"
company_name: "M&T BANK CORP"
filed_at: "2025-07-30T23:59:59+00:00"
generated_at: "2026-05-17T23:17:03.458256+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# M&T closes $750M offering of 5.400% subordinated notes due 2035

## Summary
- Issued $750M aggregate principal of 5.400% Fixed Rate Reset Subordinated Notes, Series B, due July 30, 2035.
- Notes are subordinated and feature a fixed-rate reset structure; proceeds not specified.
- Offering closed on July 30, 2025 under existing shelf registration statement on Form S-3.
- Legal opinion of Squire Patton Boggs (US) LLP regarding validity filed as Exhibit 5.1.

## SEC filing metadata
- accession: 0001193125-25-169297
- form_type: 8-K
- ticker: MTB
- cik: 0000036270
- company_name: M&T BANK CORP
- filed_at: 2025-07-30T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/36270/000119312525169297/0001193125-25-169297-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/36270/000119312525169297/d946663d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-169297
- JSON: https://secwatch.observer/filing/0001193125-25-169297.json
- Plain text: https://secwatch.observer/filing/0001193125-25-169297.txt

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