IRON MOUNTAIN INC — Director's Dealing 2011

Mar 15, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IRON MOUNTAIN INC (IRM)
CIK: 0001020569
Period of Report: 2011-03-11

Reporting Person: MCKEON BRIAN P (Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-03-11	Common Stock	A	6404	—	Acquired	6404	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-03-11	Employee Stock Option (Right to Buy)	$28.105	A	49498	Acquired	2021-03-11	Common Stock (49498)	Direct

Footnotes

F1: Consists of shares issuable upon the settlement of restricted stock units granted on March 11, 2011. The restricted stock units vest in three equal annual installments beginning on the first anniversary of the date of grant.

F2: This stock option becomes exercisable in three equal annual installments beginning on the first anniversary of the date of grant.