---
schema_version: "secwatch.filing_event.v1"
accession: "0001020569-25-000187"
form_type: "8-K"
ticker: "IRM"
cik: "0001020569"
company_name: "IRON MOUNTAIN INC"
filed_at: "2025-09-10T23:59:59+00:00"
generated_at: "2026-05-17T06:57:08.142694+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# Iron Mountain issues €1.2B of 4.750% Senior Notes due 2034, to redeem 2025 notes

## Summary
- €1.2B aggregate principal of 4.750% Senior Notes due January 15, 2034; issued at 100% of par.
- Net proceeds of ~€1.1855B after discounts and expenses.
- Proceeds to redeem all outstanding 3.875% GBP Senior Notes due 2025 and repay revolver borrowings.
- Notes are unsecured senior obligations, jointly and severally guaranteed by US subsidiaries.
- Interest payable semi-annually on Jan 15 and Jul 15; first payment Jan 15, 2026.

## SEC filing metadata
- accession: 0001020569-25-000187
- form_type: 8-K
- ticker: IRM
- cik: 0001020569
- company_name: IRON MOUNTAIN INC
- filed_at: 2025-09-10T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1020569/000102056925000187/0001020569-25-000187-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1020569/000102056925000187/irm-20250910.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001020569-25-000187
- JSON: https://secwatch.observer/filing/0001020569-25-000187.json
- Plain text: https://secwatch.observer/filing/0001020569-25-000187.txt

## Key facts
- Debt Financings
  IRON MOUNTAIN INC incurred senior notes of €1,200,000,000 at 4.750% maturing January 15, 2034.
  - Instrument: senior notes
  - Principal: €1,200,000,000
  - Rate: 4.750%
  - Maturity: January 15, 2034
  - Event: incurrence
  source text: into a Material Definitive Agreement. Issuance of 4.750% Senior Notes due 2034 On September 10, 2025, Iron Mountain Incorporated (the “Company”) completed a private offering of €1,200,000,000 in aggregate principal amount of 4.750% Senior Notes due 2034 (the “Notes”), sold at 100.00% of par. The net proceeds from the offering were approximately €1,185.5 million, after
  evidence_url: https://www.sec.gov/Archives/edgar/data/1020569/000102056925000187/0001020569-25-000187-index.htm

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