Iron Mountain (IRM) Minority Interest (2009 - 2026)

Iron Mountain has disclosed Minority Interest across 18 years of filings, most recently posting $276.6 million for Q1 2026.

• Minority Interest for Q1 2026 came in at $276.6 million, up 253.56% year-over-year; the trailing twelve-month figure through Mar 2026 was $276.6 million (up 253.56% YoY), and the FY2025 annual result was $64.4 million, down 17.59% from the prior year.
• Minority Interest came in at $276.6 million for Q1 2026 at Iron Mountain, up from $64.4 million in the prior quarter.
• In the past five years, Minority Interest ranged from a high of $276.6 million in Q1 2026 to a low of $64.4 million in Q4 2025.
• The 5-year median for Minority Interest is $95.2 million (2022), against an average of $118.5 million.
• Across the five-year window, Minority Interest slumped 58.43% in 2025 and soared 253.56% in 2026, its largest moves.
• Iron Mountain's Minority Interest stood at $95.2 million in 2022, then surged by 87.0% to $177.9 million in 2023, then plunged by 56.07% to $78.2 million in 2024, then dropped by 17.59% to $64.4 million in 2025, then jumped by 329.38% to $276.6 million in 2026.
• The last three Minority Interest figures came in at $276.6 million (Q1 2026), $64.4 million (Q4 2025), and $75.4 million (Q3 2025), per Business Quant data.