IRON MOUNTAIN INC — Director's Dealing 2016

May 4, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IRON MOUNTAIN INC (IRM)
CIK: 0001020569
Period of Report: 2016-05-02

Reporting Person: Chatfield Neil (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-05-02	Common Stock, par value $.01 per share	A	272	$0.01	Acquired	272	Direct
2016-05-02	Common Stock, par value $.01 per share	F	82	$36.60	Disposed	190	Direct

Footnotes

F1: Consists of shares issuable upon the settlement of restricted stock units ("RSUs") granted on May 2, 2016. The RSUs vest on the grant date.