IRON MOUNTAIN INC — Director's Dealing 2014

Jun 2, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IRON MOUNTAIN INC (IRM)
CIK: 0001020569
Period of Report: 2014-05-29

Reporting Person: HALVORSEN KRIS (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-05-29	Common Stock, par value $.01 per share	A	4373	$0.01	Acquired	12576	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2014-05-29	Phantom Stock	$	A	137.3497	Acquired		Common Stock (137.3497)	Direct

Footnotes

F1: Consists of shares issuable upon the settlement of restricted stock units granted on May 29, 2014. The restricted stock units vest on the one year anniversary of the grant date (or, if earlier, the annual meeting of stockholders that is closest to the one year anniversary).

F2: Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan, the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock on various dates selected by the Reporting Person or as otherwise provided in the Iron Mountain Incorporated Directors Deferred Compensation Plan. Each Phantom Share is the economic equivalent of one share of common stock.

F3: These shares give effect to dividends paid on previously reported restricted stock units as if reinvested in Phantom Shares.