    <SEC-DOCUMENT>0001308179-23-000454-index.html : 20230330
    <SEC-HEADER>0001308179-23-000454.hdr.sgml : 20230330
    <ACCEPTANCE-DATETIME>20230330161825
    ACCESSION NUMBER:		0001308179-23-000454
    CONFORMED SUBMISSION TYPE:	ARS
    PUBLIC DOCUMENT COUNT:		1
    CONFORMED PERIOD OF REPORT:	20221231
    FILED AS OF DATE:		20230330
    DATE AS OF CHANGE:		20230330
    EFFECTIVENESS DATE:		20230330

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			IRON MOUNTAIN INC
    		CENTRAL INDEX KEY:			0001020569
    		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
    		IRS NUMBER:				232588479
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		ARS
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-13045
    		FILM NUMBER:		23780937

    	BUSINESS ADDRESS:
    		STREET 1:		85 NEW HAMPSHIRE AVENUE, SUITE 150
    		STREET 2:		PEASE INTERNATIONAL TRADEPORT
    		CITY:			PORTSMOUTH
    		STATE:			NH
    		ZIP:			03801
    		BUSINESS PHONE:		617-535-4781

    	MAIL ADDRESS:
    		STREET 1:		ONE FEDERAL STREET
    		CITY:			BOSTON
    		STATE:			MA
    		ZIP:			02110

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	IRON MOUNTAIN INC/PA
    		DATE OF NAME CHANGE:	20000201

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	PIERCE LEAHY CORP
    		DATE OF NAME CHANGE:	19960807
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>ARS
    <SEQUENCE>1
    <FILENAME>irm4151021-ars.pdf
    <DESCRIPTION>ANNUAL REPORT TO SECURITY HOLDERS
    <TEXT>
    Document 1 - file: irm4151021-ars.pdf

    </DOCUMENT>
    </SEC-DOCUMENT>