IRON MOUNTAIN INC — Director's Dealing 2016

Jan 11, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IRON MOUNTAIN INC (IRM)
CIK: 0001020569
Period of Report: 2016-01-07

Reporting Person: Meaney William L (Director, President and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-01-07	Common Stock, par value $.01 per share	M	17038	—	Acquired	44158	Direct
2016-01-07	Common Stock, par value $.01 per share	F	5738	$26.46	Disposed	38420	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-01-07	Restricted Stock Units	$	M	17038	Disposed		Common Stock (17038)	Direct

Footnotes

F1: This acquisition is reported to reflect the partial vesting of restricted stock units ("RSUs") previously granted to the Reporting Person on January 7, 2013.

F2: Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F3: The RSUs, representing a contingent right to receive a total of 68,158 shares of Common Stock, were granted to the Reporting Person on January 7, 2013 and vest 25% on the third anniversary of the grant date, 25% on the fourth anniversary of the grant date and 50% on the fifth anniversary of the grant date. The number of RSUs granted includes previously reported RSUs allocated on November 4, 2014 in connection with the special distribution declared by the Board of Directors of Iron Mountain Incorporated on September 15, 2014 and paid on November 4, 2014.