Iron Mountain (IRM) Assets (2009 - 2026)

Iron Mountain has disclosed Assets across 18 years of filings, most recently posting $21.5 billion for Q1 2026.

• Assets for Q1 2026 came in at $21.5 billion, up 10.97% year-over-year; the trailing twelve-month figure through Mar 2026 was $21.5 billion (up 10.97% YoY), and the FY2025 annual result was $21.1 billion, up 12.86% from the prior year.
• Assets came in at $21.5 billion for Q1 2026 at Iron Mountain, up from $21.1 billion in the prior quarter.
• In the past five years, Assets ranged from a high of $21.5 billion in Q1 2026 to a low of $15.6 billion in Q2 2022.
• The 5-year median for Assets is $17.8 billion (2024), against an average of $18.0 billion.
• Across the five-year window, Assets increased 5.36% in 2023 and advanced 12.86% in 2025, its largest moves.
• Iron Mountain's Assets stood at $16.1 billion in 2022, then advanced by 8.26% to $17.5 billion in 2023, then rose by 7.12% to $18.7 billion in 2024, then climbed by 12.86% to $21.1 billion in 2025, then advanced by 1.71% to $21.5 billion in 2026.
• The last three Assets figures came in at $21.5 billion (Q1 2026), $21.1 billion (Q4 2025), and $20.6 billion (Q3 2025), per Business Quant data.