Avoid the stress of overpaying for a stock or missing an opportunity by using the right tools and insights to evaluate Iron Mountain Incorporated before investing.

In this article, we go over a few key elements for understanding Iron Mountain Incorporated’s stock price such as:

• Iron Mountain Incorporated’s current stock price and volume
• Why Iron Mountain Incorporated’s stock price changed recently
• Upgrades and downgrades for IRM from analysts
• IRM’s stock price momentum as measured by its relative strength

About Iron Mountain Incorporated (IRM)

Before we jump into Iron Mountain Incorporated’s stock price, history, target price and what caused it to recently dip, let’s take a look at some background.

Iron Mountain Incorporated is a global leader in information management services, and is trusted by more than 240,000 customers in 61 countries. It also includes approximately 95% of the Fortune 1000, to help unlock value and intelligence from their assets through services that transcend the physical and digital worlds. Their broad range of solutions address their information management, digital transformation, information security, data center and asset lifecycle management (ALM) needs. Their longstanding commitment to safety, security, sustainability and innovation in support of our customers underpins everything we do. We currently serve customers across an array of market verticals commercial, legal, financial, healthcare, technology, life sciences, energy, business services, entertainment and government organizations. They are listed on the New York Stock Exchange (the NYSE) and are a constituent of the Standard & Poor’s 500 Index, the Morgan Stanley Capital International (MSCI) REIT index and the FTSE EPRA Nareit Global Real Estate Index. As of December 31, 2025, we were number 567 on the Fortune 1000. We have been organized and have operated as a REIT beginning with our taxable year ended December 31, 2014. The firm was founded and incorporated in 1951 and is based in Portsmouth, United States.

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Iron Mountain Incorporated’s Stock Price as of Market Close

As of May 13, 2026, 10:02 AM, CST, Iron Mountain Incorporated’s stock price was $125.460.

Iron Mountain Incorporated is down 0.59% from its previous closing price of $126.210.

During the last market session, Iron Mountain Incorporated’s stock traded between $123.290 and $126.580. Currently, there are approximately 296.85 million shares outstanding for Iron Mountain Incorporated.

Iron Mountain Incorporated’s price-earnings (P/E) ratio is currently at 137.2, which is high compared to the Specialized REITs industry median of 30.2. The price-earnings ratio gauges market expectation of future performance by relating a stock’s current share price to its earnings per share.

Iron Mountain Incorporated Stock Price History

Iron Mountain Incorporated’s (IRM) price is currently down 0.42% so far this month.

During the month of May, Iron Mountain Incorporated’s stock price has reached a high of $134.090 and a low of $123.290.

Over the last year, Iron Mountain Incorporated has hit prices as high as $134.090 and as low as $77.770. Year to date, Iron Mountain Incorporated’s stock is up 51.25%.

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What Caused Iron Mountain Incorporated Stock’s Price to Dip?

Stock prices are primarily based on seller supply and buyer demand. But have you ever wondered about what other factors affect a stock's price?

When an analyst changes their opinion of a stock by upgrading or downgrading their rating, it often leads to a sudden stock price adjustment. As of May 12, 2026, there was 1 analyst who downgraded Iron Mountain Incorporated’s stock and 0 analysts who upgraded over the last month.

Additionally, you'll want to evaluate Iron Mountain Incorporated’s financial health and valuation. Investors can use AAII's Value Grade, which combines six key valuation metrics like P/E and P/S ratios for a comprehensive analysis to conduct analysis on Iron Mountain Incorporated’s valuation and financial health. This approach mitigates the limitations of single-metric evaluations.

Iron Mountain Incorporated’s current valuation based on AAII’s Value Grade is a F, which means it is considered to be Ultra Expensive.

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Lastly, news and media coverage as well as recent press reports about the company or its industry may cause stock prices to fluctuate. You can check out the most recent news articles about Iron Mountain Incorporated (IRM) by visiting AAII Stock Evaluator.

Relative Price Strength of Iron Mountain Incorporated

Relative price strength measures a stock's performance against the market, helping investors identify stocks that are outperforming benchmarks.

For AAII’s Momentum Grade, a weighted relative price strength is calculated. Follow this link to learn more about the Momentum Grade.

As of May 12, 2026, Iron Mountain Incorporated has a weighted four-quarter relative price strength of 4.52%, which translates to a Momentum Score of 72 and is considered to be Strong.

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Iron Mountain Incorporated Stock Price: Bottom Line

As of May 13, 2026, Iron Mountain Incorporated’s stock price is $125.460, which is down 0.59% from its previous closing price.

AAII advises against making stock decisions based solely on price or past returns. Instead, consider a variety of metrics, fundamentals, and analytics to evaluate a stock like Iron Mountain Incorporated stock prices are influenced by market supply and demand and offer just a snapshot of a company's overall health.

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