IRON MOUNTAIN INC — Director's Dealing 2012

Mar 13, 2012

SEC Form 4/A — Form 4/A

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

Reporting Person: Duale Marc A (President, Iron Mountain Int'l)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-03-11	Restricted Stock Units	$	A	3202	Acquired		Common Stock (3202)	Direct

Footnotes

F1: The reporting person's original Form 4 disclosed the grant of restricted stock units ("RSUs") in Table I; for ease of reporting, the original Form 4 is being amended for the sole purpose of reflecting the grant of such RSUs in Table II. The number of RSUs granted and the vesting schedule of the RSUs has not changed.

F2: Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock.

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