---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-281475"
form_type: "8-K"
ticker: "MTB"
cik: "0000036270"
company_name: "M&T BANK CORP"
filed_at: "2023-11-21T23:59:59+00:00"
generated_at: "2026-06-07T22:57:02.068761+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# M&T Bank closes $250M add-on of 7.413% senior notes due 2029, total $1B outstanding

## Summary
- Issued $250M aggregate principal amount of 7.413% Fixed/Floating Rate Senior Notes due October 30, 2029.
- Notes reopen and are fungible with $750M original issuance from October 30, 2023; combined $1B total.
- Proceeds used for general corporate purposes; notes listed under CUSIP and ISIN of original series.
- Legal opinion from Squire Patton Boggs filed as Exhibit 5.1.

## SEC filing metadata
- accession: 0001193125-23-281475
- form_type: 8-K
- ticker: MTB
- cik: 0000036270
- company_name: M&T BANK CORP
- filed_at: 2023-11-21T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/36270/000119312523281475/0001193125-23-281475-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/36270/000119312523281475/d554609d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-281475
- JSON: https://secwatch.observer/filing/0001193125-23-281475.json
- Plain text: https://secwatch.observer/filing/0001193125-23-281475.txt

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