IRON MOUNTAIN INC — Director's Dealing 2015

May 29, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IRON MOUNTAIN INC (IRM)
CIK: 0001020569
Period of Report: 2015-05-27

Reporting Person: Keddy Patrick J (Exec.VP,GM,N.America,W.Europe)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-05-27	Employee Stock Option (Right to Buy)	$36.91	A	22102	Acquired	2025-05-27	Common Stock (22102)	Direct
2015-05-27	Restricted Stock Units	$	A	4470	Acquired		Common Stock (4470)	Direct

Footnotes

F1: This stock option becomes exercisable in three substantially equal annual installments beginning on the first anniversary of the date of grant.

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

F3: The RSUs vest in three substantially equal annual installments beginning on the first anniversary of the grant date.