Portsmouth-based Iron Mountain Incorporated (IRM) is a global leader in information management services, trusted by more than 240,000 customers in 61 countries. The company has a market cap of $37.5 billion and offers solutions for information management, digital transformation, information security, data centers, and asset lifecycle management (ALM).
Shares of the company have rallied the broader market over the past year and in 2026. IRM stock has grown 29.5% over the past 52 weeks and 52% on a YTD basis. In comparison, the S&P 500 Index ($SPX) has returned 26.5% over the past year and risen 8.8% in 2026.
