<SEC-DOCUMENT>0001193125-25-307313.txt : 20251203
<SEC-HEADER>0001193125-25-307313.hdr.sgml : 20251203
<ACCEPTANCE-DATETIME>20251203215947
ACCESSION NUMBER:		0001193125-25-307313
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20251203
DATE AS OF CHANGE:		20251203

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Sotera Health Co
		CENTRAL INDEX KEY:			0001822479
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MISC HEALTH & ALLIED SERVICES, NEC [8090]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		EIN:				473531161
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-39729
		FILM NUMBER:		251548138

	BUSINESS ADDRESS:	
		STREET 1:		9100 SOUTH HILLS BLVD, SUITE 300
		CITY:			BROADVIEW HEIGHTS
		STATE:			OH
		ZIP:			44147
		BUSINESS PHONE:		440-262-1410

	MAIL ADDRESS:	
		STREET 1:		9100 SOUTH HILLS BLVD, SUITE 300
		CITY:			BROADVIEW HEIGHTS
		STATE:			OH
		ZIP:			44147

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Sotera Health Topco, Inc.
		DATE OF NAME CHANGE:	20200824

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GTCR CO-INVEST XI LP
		CENTRAL INDEX KEY:			0001591432
		ORGANIZATION NAME:           	
		EIN:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144

	BUSINESS ADDRESS:	
		STREET 1:		300 NORTH LASALLE STREET, SUITE 5600
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60654
		BUSINESS PHONE:		(312) 382-2200

	MAIL ADDRESS:	
		STREET 1:		300 NORTH LASALLE STREET, SUITE 5600
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60654
</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:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<headerData>
<submissionType>144</submissionType>
<filerInfo>
<filer>
<filerCredentials>
<cik>0001591432</cik>
<ccc>XXXXXXXX</ccc>
</filerCredentials>
</filer>
<liveTestFlag>LIVE</liveTestFlag>
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<formData>
<issuerInfo>
<issuerCik>0001822479</issuerCik>
<issuerName>Sotera Health Co</issuerName>
<secFileNumber>001-39729</secFileNumber>
<issuerAddress>
<street1 xmlns="http://www.sec.gov/edgar/common">9100 SOUTH HILLS BLVD</street1>
<street2 xmlns="http://www.sec.gov/edgar/common">SUITE 300</street2>
<city xmlns="http://www.sec.gov/edgar/common">BROADVIEW HEIGHTS</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">OH</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">44147</zipCode>
</issuerAddress>
<issuerContactPhone>440-262-1410</issuerContactPhone>
<nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>GTCR CO-INVEST XI LP </nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
<relationshipsToIssuer>
<relationshipToIssuer>Owner</relationshipToIssuer>
</relationshipsToIssuer>
</issuerInfo>
<securitiesInformation>
<securitiesClassTitle>Common Stock, $0.01 par value per share</securitiesClassTitle>
<brokerOrMarketmakerDetails>
<name>Goldman Sachs &amp; Co. LLC</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">200 West Street</street1>
<city xmlns="http://www.sec.gov/edgar/common">New York</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">NY</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">10282</zipCode>
</address>
</brokerOrMarketmakerDetails>
<noOfUnitsSold>41219</noOfUnitsSold>
<aggregateMarketValue>673106.27</aggregateMarketValue>
<noOfUnitsOutstanding>144620</noOfUnitsOutstanding>
<approxSaleDate>12/03/2025</approxSaleDate>
<securitiesExchangeName>NASDAQ</securitiesExchangeName>
</securitiesInformation>
<securitiesToBeSold>
<securitiesClassTitle>Common Stock, $0.01 par value per share</securitiesClassTitle>
<acquiredDate>11/19/2020</acquiredDate>
<natureOfAcquisitionTransaction>Pre-IPO Organization</natureOfAcquisitionTransaction>
<nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
<isGiftTransaction>N</isGiftTransaction>
<amountOfSecuritiesAcquired>504342</amountOfSecuritiesAcquired>
<paymentDate>11/19/2020</paymentDate>
<natureOfPayment>Securities received in connection with a series of pre-IPO transactions</natureOfPayment>
</securitiesToBeSold>
<nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
<noticeSignature>
<noticeDate>12/03/2025</noticeDate>
<signature>Jeffrey Wright</signature>
</noticeSignature>
</formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
