Iron Mountain Incorporated Announces Tax Treatment of 2015 Distributions

BOSTON--(BUSINESS WIRE)--

Iron Mountain Incorporated IRM, the storage and information management services company, announced the tax treatment for all 2015 distributions on its common stock.

Record Date		Payment Date		Total Distribution (per share)		Form 1099 Box 1a Ordinary Taxable Dividend (per share)		Form 1099 Box 1b Qualified Taxable Dividend(1) (per share)		Form 1099 Box 3 Return of Capital (per share)
Mar 6, 2015		Mar 20, 2015		$0.475000		$0.419783		$0.185561		$0.055217
Jun 12, 2015		Jun 26, 2015		$0.475000		$0.419948		$0.186429		$0.055052
Sept 11, 2015		Sept 30, 2015		$0.475000		$0.419783		$0.185561		$0.055217
Dec 1, 2015		Dec 15, 2015		$0.485000		$0.428620		$0.189468		$0.056380
Total				$1.910000		$1.688134		$0.747019		$0.221866

(1) Qualified Taxable Dividend is a subset of, and included in, Ordinary Taxable Dividend.

If you held common stock of Iron Mountain in your name at any time during 2015, an IRS Form 1099-DIV will be provided to you by Computershare, Iron Mountain's transfer agent. If you held shares in "street name" during 2015, the IRS form provided by your bank, brokerage firm or nominee may report only the gross distributions paid to you. Therefore, you may need the information included in this press release to properly complete your federal tax return.

This information has been prepared using the best available information to date. Iron Mountain's federal income tax return for the year ended December 31, 2015 has not yet been filed. Please note that federal tax laws affect taxpayers differently, and we cannot advise you on how distributions should be reported on your federal income tax return. Please also note that state and local taxation of REIT distributions vary and may not be the same as the federal rules. Stockholders are encouraged to consult with their tax advisors as to the specific tax treatment of the distributions they received from us.

About Iron Mountain
Iron Mountain Incorporated IRM is a leading provider of storage and information management services. The company's real estate network of more than 67 million square feet across more than 1,000 facilities in 36 countries allows it to serve customers around the world. And its solutions for records management, data management, document management, 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 business documents, backup tapes, electronic files and medical data. Visit www.ironmountain.com for more information.

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