DEBORAH MARSON - 12 May 2021 Form 4 Insider Report for IRON MOUNTAIN INC (IRM)

Role: EVP, General Counsel, Sec.
Signature: /s/ Elizabeth Tammaro, under Power of Attorney dated December 7, 2016, from Deborah Marson
Issuer symbol: IRM
Transactions as of: 12 May 2021
Net transactions value: -$26,219
Form type: 4
Filing time: 14 May 2021, 16:48:42 UTC
Next filing: 17 Jun 2021
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	IRM	Common Stock, par value $.01 per share	Sale	$26,219	-625	-1.4%	$41.95	43,377	12 May 2021	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	This transaction was effected pursuant to a 10b5-1 trading plan which was approved and became effective as of March 10, 2021.