<SEC-DOCUMENT>0001959173-24-003626.txt : 20240516
<SEC-HEADER>0001959173-24-003626.hdr.sgml : 20240516
<ACCEPTANCE-DATETIME>20240516133718
ACCESSION NUMBER:		0001959173-24-003626
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20240516
DATE AS OF CHANGE:		20240516

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			IRON MOUNTAIN INC
		CENTRAL INDEX KEY:			0001020569
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		ORGANIZATION NAME:           	05 Real Estate & Construction
		IRS NUMBER:				232588479
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-13045
		FILM NUMBER:		24954540

	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:		1101 ENTERPRISE DRIVE
		CITY:			ROYERSFORD
		STATE:			PA
		ZIP:			19468

	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

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Meaney William L
		CENTRAL INDEX KEY:			0001566391
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		C/O IRON MOUNTAIN INCORPORATED
		STREET 2:		ONE FEDERAL STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001566391</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001020569</issuerCik>
      <issuerName>IRON MOUNTAIN INC</issuerName>
      <secFileNumber>001-13045</secFileNumber>
      <issuerAddress>
        <com:street1>85 NEW HAMPSHIRE AVENUE, SUITE 150</com:street1>
        <com:street2>PEASE INTERNATIONAL TRADEPORT</com:street2>
        <com:city>PORTSMOUTH</com:city>
        <com:stateOrCountry>NH</com:stateOrCountry>
        <com:zipCode>03801</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>617-535-4781</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Meaney William L</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Fidelity Brokerage Services LLC</name>
        <address>
          <com:street1>900 Salem Street</com:street1>
          <com:city>Smithfield</com:city>
          <com:stateOrCountry>RI</com:stateOrCountry>
          <com:zipCode>02917</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>15875</noOfUnitsSold>
      <aggregateMarketValue>1305242.50</aggregateMarketValue>
      <noOfUnitsOutstanding>293133321</noOfUnitsOutstanding>
      <approxSaleDate>05/16/2024</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>05/16/2024</acquiredDate>
      <natureOfAcquisitionTransaction>Option Granted - 02/19/2015</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>15875</amountOfSecuritiesAcquired>
      <paymentDate>05/16/2024</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>William Meaney</name>
        <address>
          <com:street1>85 New Hampshire Avenue</com:street1>
          <com:street2>Suite 150</com:street2>
          <com:city>Portsmouth</com:city>
          <com:stateOrCountry>NH</com:stateOrCountry>
          <com:zipCode>03801</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>03/04/2024</saleDate>
      <amountOfSecuritiesSold>115979</amountOfSecuritiesSold>
      <grossProceeds>9151152.44</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>William Meaney</name>
        <address>
          <com:street1>85 New Hampshire Avenue</com:street1>
          <com:street2>Suite 150</com:street2>
          <com:city>Portsmouth</com:city>
          <com:stateOrCountry>NH</com:stateOrCountry>
          <com:zipCode>03801</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>03/05/2024</saleDate>
      <amountOfSecuritiesSold>137032</amountOfSecuritiesSold>
      <grossProceeds>10803063.57</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>William Meaney</name>
        <address>
          <com:street1>85 New Hampshire Avenue</com:street1>
          <com:street2>Suite 150</com:street2>
          <com:city>Portsmouth</com:city>
          <com:stateOrCountry>NH</com:stateOrCountry>
          <com:zipCode>03801</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>04/15/2024</saleDate>
      <amountOfSecuritiesSold>15875</amountOfSecuritiesSold>
      <grossProceeds>1217295.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>William Meaney</name>
        <address>
          <com:street1>85 New Hampshire Avenue</com:street1>
          <com:street2>Suite 150</com:street2>
          <com:city>Portsmouth</com:city>
          <com:stateOrCountry>NH</com:stateOrCountry>
          <com:zipCode>03801</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>04/16/2024</saleDate>
      <amountOfSecuritiesSold>15875</amountOfSecuritiesSold>
      <grossProceeds>1185703.75</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>William Meaney</name>
        <address>
          <com:street1>85 New Hampshire Avenue</com:street1>
          <com:street2>Suite 150</com:street2>
          <com:city>Portsmouth</com:city>
          <com:stateOrCountry>NH</com:stateOrCountry>
          <com:zipCode>03801</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>05/15/2024</saleDate>
      <amountOfSecuritiesSold>15875</amountOfSecuritiesSold>
      <grossProceeds>1294447.50</grossProceeds>
    </securitiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>05/16/2024</noticeDate>
      <planAdoptionDates>
        <planAdoptionDate>05/13/2022</planAdoptionDate>
      </planAdoptionDates>
      <signature>/s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for William L Meaney</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
