What Changed
Price Move History
- Daily moves over 5%
- 6 252 sessions, September 16, 2025 to September 16, 2026
- Largest daily move
- +10% close of April 30, 2026
- 1-year change
- +11.8% closing prices, September 16, 2025 to September 16, 2026
- 5-year change
- +149.7% closing prices, September 16, 2021 to September 16, 2026
Company Description
Iron Mountain Incorporated (NYSE: IRM) is organized as a real estate investment trust (REIT) in the Real Estate and Rental and Leasing sector, with an industry classification of Lessors of Miniwarehouses and Self-Storage Units. According to company and regulatory disclosures, Iron Mountain is a global leader in information management services, helping organizations manage and extract value from both physical and digital assets. The company reports that it is trusted by more than 240,000 customers in 61 countries, including approximately 95% of the Fortune 1000, underscoring its broad enterprise customer base.
Iron Mountain states that the majority of its revenue comes from its storage business, with the remainder generated from value-added services. Its operations are organized into three primary business segments: Global RIM Business, Global Data Center Business, and Corporate and Other Business. The company discloses that it generates the largest share of its revenue from the Global RIM Business segment. This structure reflects a combination of records and information management activities, data center operations, and corporate-level functions.
Business model and services
Iron Mountain describes itself as helping customers "unlock value and intelligence" from their assets through services that span the physical and digital worlds. Its disclosed solutions address customer needs in several key areas:
- Information management – managing records and information assets for enterprise clients.
- Digital transformation – supporting the transition of information and assets into digital formats.
- Information security – protecting sensitive information across its lifecycle.
- Data center – providing data center-related services within its Global Data Center Business segment.
- Asset lifecycle management (ALM) – managing information technology and other assets through to end-of-life.
The company emphasizes a longstanding commitment to safety, security, sustainability and what it characterizes as innovation in support of customers. It highlights that its services are designed to address information management, digital, security, data center and asset lifecycle needs for a large, primarily enterprise, customer base.
Global footprint and customer base
Iron Mountain reports operations in 61 countries and notes that its customer base exceeds 240,000 organizations. It further states that approximately 95% of the Fortune 1000 rely on its services. This combination of geographic reach and concentration in large enterprises positions the company as a significant participant in information management and related real estate-backed infrastructure.
While the company is classified in an industry associated with miniwarehouses and self-storage, its own disclosures focus on information management, data center, digital transformation, information security and asset lifecycle management services, reflecting a business model that integrates physical storage facilities with technology-enabled offerings.
Segment structure and revenue mix
According to the company’s description and financial disclosures, Iron Mountain operates through the following segments:
- Global RIM Business – the firm states that this segment generates the maximum share of its revenue. It is associated with records and information management activities.
- Global Data Center Business – focused on data center-related services.
- Corporate and Other Business – encompassing corporate-level activities and other operations.
The company notes that storage-related activities account for the majority of its revenue, with the remainder coming from value-added services. In its public communications, Iron Mountain also refers to "growth businesses" of data center, digital and asset lifecycle management within its broader portfolio.
Capital structure and REIT organization
Iron Mountain is organized as a REIT and files periodic reports with the U.S. Securities and Exchange Commission (SEC) under the name Iron Mountain Incorporated. Its SEC filings describe a capital structure that includes term loans under a long-standing credit agreement and senior notes issued in the capital markets. For example, the company has reported amendments to its credit agreement to incur incremental term loans and adjust amortization schedules, and it has disclosed private offerings of senior notes due 2034, guaranteed by certain U.S. subsidiaries.
These financing activities, together with its REIT structure, support its real estate and infrastructure-intensive operations, including storage facilities and data center assets. The company also highlights the importance of maintaining qualification for taxation as a REIT for U.S. federal income tax purposes in its risk factor discussions.
Risk considerations disclosed by the company
In its public statements and risk factor summaries, Iron Mountain identifies a range of considerations that could affect its operations and financial performance. Among the areas it highlights are:
- Execution of its strategic growth plan, including investments, expansion of businesses, and incorporation of alternative technologies such as artificial intelligence into its offerings.
- Changes in customer preferences and demand for storage and information management services, including shifts from paper and tape storage to alternative technologies.
- Compliance with laws and regulations related to data privacy, cybersecurity, fire and safety, and environmental standards.
- Potential impacts of attacks on internal information technology systems, including reputational effects and possible litigation or disputes.
- Access to capital, cost of debt, and ability to comply with existing debt obligations.
- Factors affecting data center operations, such as service interruptions, equipment damage and the cost of power.
- Costs and potential liabilities associated with real estate needed for its business.
- Broader political and economic conditions in the countries where it operates and trends in competitive or economic conditions.
These disclosures are intended to outline uncertainties that could cause actual results to differ from forward-looking statements made by the company.
Corporate governance and board composition
Iron Mountain’s SEC filings document ongoing corporate governance developments. For example, the company has reported the election of an additional director with extensive experience as a chief financial officer in the real estate and REIT sectors, and noted that this director will serve on the Audit Committee of the board. The company also describes compensation arrangements for non-employee directors, including eligibility for restricted stock units under its stock and cash incentive plan and participation in a directors deferred compensation plan.
Strategic partnerships and brand visibility
In its public announcements, Iron Mountain has highlighted partnerships that align with its information management and digital capabilities. One example is a partnership under which Iron Mountain will support a major motorsports team’s "digital heritage transformation" by using an AI-enabled digital platform to preserve, digitize and activate archival materials such as blueprints, film and photography. The company notes that this work is intended to transform historical assets into intelligent, dynamic content and to manage end-of-life IT assets securely and efficiently.
Such partnerships illustrate how Iron Mountain applies its information management, digital transformation and asset lifecycle management services to high-profile, content-rich environments, reinforcing its positioning in both physical and digital asset stewardship.
Dividends and investor communications
As a REIT, Iron Mountain regularly communicates dividend decisions and financial results. The company has announced periodic dividends on its common stock and has referenced its outlook for revenue and profitability growth, as well as its approach to aligning dividend growth with growth in adjusted funds from operations (AFFO) per share. It also provides earnings press releases, slide presentations and supplemental financial information in connection with quarterly results, and hosts conference calls and webcasts for investors.
Through these disclosures, Iron Mountain provides investors with insight into its revenue mix between storage rental and service revenue, non-GAAP metrics such as Adjusted EBITDA, FFO and AFFO, and the performance of its storage and growth businesses, including data center, digital and asset lifecycle management activities.
Summary
In summary, Iron Mountain Incorporated is a REIT-classified company in the real estate and rental and leasing sector that focuses on information management services for a large, predominantly enterprise customer base. It combines storage-driven revenue with value-added services in information management, digital transformation, information security, data center operations and asset lifecycle management. With operations in dozens of countries and relationships with a high proportion of Fortune 1000 companies, Iron Mountain’s disclosures emphasize safety, security, sustainability and the integration of physical and digital capabilities as core elements of its business model.
Stock Performance
Iron Mountain (IRM) closed at $112.15 on September 16, 2026. Over the past 12 months, the price has gained 11.8%.
IRM Metrics & Rankings
Price returns through September 16, 2026. Month-to-date and YTD include the first trading day. Ranking links may use different dates.
Latest News
Iron Mountain has 10 recent news articles, with the latest published 2 days ago. Of the recent coverage, 5 articles coincided with positive price movement and 5 with negative movement. Key topics include partnership, conferences, earnings, earnings date, offering. View all IRM news →
SEC Filings
Iron Mountain has filed 5 recent SEC filings, including 3 Form 4, 2 Form 144. The most recent filing was submitted on September 2, 2026. SEC filings provide transparency into a company's financial condition, material events, and regulatory compliance. View all IRM SEC filings →
Insider Radar
Insider selling at Iron Mountain over the past 90 days can reflect routine portfolio management, scheduled trading plans (Rule 10b5-1), tax planning, or compensation-related dispositions rather than a directional view on the stock.
Financial Highlights
Iron Mountain generated $6.9B in revenue in FY2025, retaining a 55.4% gross margin, operating income reached $1.2B (16.9% operating margin), and net income was $152.3M, reflecting a 2.2% net profit margin. Diluted earnings per share stood at $0.49. The company generated $1.3B in operating cash flow. With a current ratio of 0.74, short-term liquidity bears monitoring.
Upcoming Events
RBC Capital presentation
Senior notes maturity
Iron Mountain has 2 upcoming scheduled events. The next event, "RBC Capital presentation", is scheduled for September 29, 2026 (in 12 days). 1 of the upcoming events are financial in nature, such as earnings calls or quarterly results. Investors can track these dates to stay informed about potential catalysts that may affect the IRM stock price.
Short Interest History
Short interest in Iron Mountain (IRM) currently stands at 6.5 million shares, down 9.0% from the previous reporting period, representing 2.2% of the float. Since September 2025, short interest has decreased by 19.9%. This relatively low short interest suggests limited bearish sentiment.
Days to Cover History
Days to cover for Iron Mountain (IRM) currently stands at 4.8 days, up 21.8% from the previous period. This days-to-cover ratio represents a balanced liquidity scenario for short positions. The ratio has shown significant volatility over the period, ranging from 3.0 to 7.8 days.
IRM Company Profile & Sector Positioning
Iron Mountain (IRM) operates in the REIT - Specialty industry within the broader Real Estate sector and is listed on the NYSE. Among dividend-paying stocks, IRM ranks #1,030 by dividend yield.
Investors comparing IRM often look at related companies in the same sector, including Crown Castle Inc. (CCI), SBA Communications Corp (SBAC), Digital Realty Trust, Inc. (DLR), Weyerhaeuser Company (WY), and Equinix, Inc. (EQIX). Comparing financial metrics, valuation ratios, and stock performance across these peers can help investors evaluate IRM's relative position within its industry.