---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-254168"
form_type: "8-K"
ticker: "MRSH"
cik: "0000062709"
company_name: "MARSH & MCLENNAN COMPANIES, INC."
filed_at: "2024-11-08T23:59:59+00:00"
generated_at: "2026-05-30T03:06:49.261642+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Marsh & McLennan issues $7.25B in senior notes across eight tranches

## Summary
- $950M 4.550% notes due 2027; $1B 4.650% notes due 2030; $1B 4.850% notes due 2031.
- $2B 5.000% notes due 2035; $500M 5.350% notes due 2044; $1.5B 5.400% notes due 2055.
- $300M floating-rate notes due 2027 also issued; all priced on October 30, closed November 8, 2024.
- Underwriters include Citigroup, BofA Securities, Deutsche Bank, HSBC, J.P. Morgan, Wells Fargo.

## SEC filing metadata
- accession: 0001193125-24-254168
- form_type: 8-K
- ticker: MRSH
- cik: 0000062709
- company_name: MARSH & MCLENNAN COMPANIES, INC.
- filed_at: 2024-11-08T23:59:59+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/62709/000119312524254168/0001193125-24-254168-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/62709/000119312524254168/d862477d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-254168
- JSON: https://secwatch.observer/filing/0001193125-24-254168.json
- Plain text: https://secwatch.observer/filing/0001193125-24-254168.txt

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