Iron Mountain Increases Quarterly Dividend per Share by 13%

The Board of Directors (the “Board”) of Iron Mountain Incorporated (NYSE: IRM /ASX: INM), the storage and information management company, declared a cash dividend of $0.55 USD per share on the common stock and Chess Depository Interests (CDIs) of the company, to shareholders of record at the close of business on December 15, 2016. The company’s previous quarterly dividend per share was $0.485, representing an increase of more than 13%.

The payable date for NYSE listed common stock holders is December 30, 2016, and the payable date for ASX listed CDIs is on January 16, 2017. CDI holders will be paid in Australian dollars, and the conversion is expected to occur on December 30, 2016.

Commenting on the increase, Iron Mountain president and chief executive officer, William L. Meaney said, “Our significant progress in achieving synergies from the recent Recall acquisition combined with solid execution of our Transformation initiative to drive overhead costs lower, provide us with the fuel to increase our quarterly dividend in the fourth quarter, versus earlier expectations of an increase in the first quarter of 2017.”

About Iron MountainIron Mountain Incorporated (NYSE: IRM) is the global leader for storage and information management services. Trusted by more than 220,000 organizations around the world, Iron Mountain boasts a real estate network of more than 80 million square feet across more than 1,350 facilities in 45 countries dedicated to protecting and preserving what matters most for its customers. Iron Mountain’s solutions portfolio includes records management, data management, document management, data centers, art storage and logistics, and secure shredding help organizations to lower storage costs, comply with regulations, recover from disaster, and better use their information. Founded in 1951, Iron Mountain stores and protects billions of information assets, including critical business documents, electronic information, medical data and cultural and historical artifacts. Visit www.ironmountain.com for more information.

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Iron Mountain IncorporatedInvestor Relations Contacts:Melissa Marsden, 617-535-8595Senior Vice President, Investor [e-mail] Freiha, 617-535-8404Director, Investor [e-mail]