Iron Mountain (IRM) Assets Average (2009 - 2026)

Iron Mountain has disclosed Assets Average across 18 years of filings, most recently posting $21.3 billion for Q1 2026.

• Assets Average for Q1 2026 came in at $21.3 billion, up 11.9% year-over-year; the trailing twelve-month figure through Mar 2026 was $21.3 billion (up 11.9% YoY), and the FY2025 annual result was $19.9 billion, up 10.09% from the prior year.
• Assets Average came in at $21.3 billion for Q1 2026 at Iron Mountain, up from $20.9 billion in the prior quarter.
• In the past five years, Assets Average ranged from a high of $21.3 billion in Q1 2026 to a low of $15.0 billion in Q1 2022.
• The 5-year median for Assets Average is $17.7 billion (2024), against an average of $17.8 billion.
• Across the five-year window, Assets Average gained 6.06% in 2023 and gained 12.29% in 2025, its largest moves.
• Iron Mountain's Assets Average stood at $15.9 billion in 2022, then climbed by 7.9% to $17.2 billion in 2023, then grew by 8.26% to $18.6 billion in 2024, then advanced by 12.29% to $20.9 billion in 2025, then advanced by 2.05% to $21.3 billion in 2026.
• The last three Assets Average figures came in at $21.3 billion (Q1 2026), $20.9 billion (Q4 2025), and $20.4 billion (Q3 2025), per Business Quant data.