IRON MOUNTAIN INC — Director's Dealing 2020

May 27, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IRON MOUNTAIN INC (IRM)
CIK: 0001020569
Period of Report: 2020-05-26

Reporting Person: Borges Daniel (SVP & Chief Accounting Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-05-26	Common Stock, par value $.01 per share	M	506	—	Acquired	7553	Direct
2020-05-26	Common Stock, par value $.01 per share	F	148	$24.85	Disposed	7405	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-05-26	Restricted Stock Units	$	M	506	Disposed		Common Stock (506.0)	Direct

Footnotes

F1: Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F2: The RSUs, representing a contingent right to receive a total of 1,521 shares of Common Stock, were granted to the Reporting Person on May 23, 2018 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date