IRON MOUNTAIN INC — Director's Dealing 2019

Feb 19, 2019

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IRON MOUNTAIN INC (IRM)
CIK: 0001020569
Period of Report: 2019-02-14

Reporting Person: MARSON DEBORAH (EVP, General Counsel, Sec.)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2019-02-14	Performance Units	$	A	1496	Acquired		Common Stock (1496.0)	Direct

Footnotes

F1: Each Performance Unit ("PU") represents a contingent right to receive one share of Iron Mountain Incorporated common stock.

F2: The PUs were initially granted to the Reporting Person on February 18, 2016. This Form 4 is being filed to reflect the determination by the Compensation Committee of Iron Mountain Incorporated's Board of Directors, effective as of February 14, 2019, of the actual award of PUs under the grant after completion of the relevant performance period.

F3: The PUs were initially granted to the Reporting Person on February 18, 2016 and fully vest on February 18, 2019.