<SEC-DOCUMENT>0001844358-25-000007.txt : 20251124
<SEC-HEADER>0001844358-25-000007.hdr.sgml : 20251124
<ACCEPTANCE-DATETIME>20251124163741
ACCESSION NUMBER:		0001844358-25-000007
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20251124
DATE AS OF CHANGE:		20251124

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ECOLAB INC.
		CENTRAL INDEX KEY:			0000031462
		STANDARD INDUSTRIAL CLASSIFICATION:	SOAP, DETERGENT, CLEANING PREPARATIONS, PERFUMES, COSMETICS [2840]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		EIN:				410231510
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-09328
		FILM NUMBER:		251513638

	BUSINESS ADDRESS:	
		STREET 1:		1 ECOLAB PLACE
		CITY:			SAINT PAUL
		STATE:			MN
		ZIP:			55102
		BUSINESS PHONE:		18002326522

	MAIL ADDRESS:	
		STREET 1:		1 ECOLAB PLACE
		CITY:			SAINT PAUL
		STATE:			MN
		ZIP:			55102

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ECOLAB INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ECONOMICS LABORATORY INC
		DATE OF NAME CHANGE:	19861203

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			De Boo Alexander A.
		CENTRAL INDEX KEY:			0001844358
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		1 ECOLAB PLACE
		CITY:			SAINT PAUL
		STATE:			MN
		ZIP:			55102

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	De Boo Sam
		DATE OF NAME CHANGE:	20210203
</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>0001844358</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
        <liveTestFlag>LIVE</liveTestFlag>




                </filerInfo>
    </headerData>

     <formData>
        <issuerInfo>
            <issuerCik>0000031462</issuerCik>
			<issuerName>ECOLAB INC.</issuerName>


			    <secFileNumber>001-09328</secFileNumber>


			<issuerAddress>
				<com:street1>1 ECOLAB PLACE</com:street1>
                				<com:city>ST. PAUL</com:city>
				<com:stateOrCountry>MN</com:stateOrCountry>
				<com:zipCode>55102</com:zipCode>
			</issuerAddress>

			<issuerContactPhone>651-250-3323</issuerContactPhone>
			<nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Alexander A. De Boo</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>

			<relationshipsToIssuer>

				    <relationshipToIssuer>Officer</relationshipToIssuer>

			</relationshipsToIssuer>
		</issuerInfo>

				          <securitiesInformation>
			<securitiesClassTitle>Common </securitiesClassTitle>
			<brokerOrMarketmakerDetails>
				<name>Morgan Stanley Smith Barney LLC - Executive Services</name>
				<address>
				<com:street1>200 W Civic Center Drive</com:street1>
                				<com:street2>4th Floor</com:street2>
                				<com:city>Sandy</com:city>
				<com:stateOrCountry>UT</com:stateOrCountry>
				<com:zipCode>84070</com:zipCode>
				</address>
			</brokerOrMarketmakerDetails>
			<noOfUnitsSold>1422</noOfUnitsSold>
			<aggregateMarketValue>379774</aggregateMarketValue>
			<noOfUnitsOutstanding>283235653</noOfUnitsOutstanding>
			<approxSaleDate>11/24/2025</approxSaleDate>
			<securitiesExchangeName>NYSE</securitiesExchangeName>
		</securitiesInformation>

    		       <securitiesToBeSold>
         <securitiesClassTitle>Common Stock</securitiesClassTitle>
         <acquiredDate>11/24/2025</acquiredDate>
         <natureOfAcquisitionTransaction>Stock Option Exercise</natureOfAcquisitionTransaction>
                  <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
                  <isGiftTransaction>N</isGiftTransaction>
		          <amountOfSecuritiesAcquired>2153</amountOfSecuritiesAcquired>
                  <paymentDate>11/24/2025</paymentDate>
                  <natureOfPayment>Broker-assisted cashless exercise</natureOfPayment>
      </securitiesToBeSold>

    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>



        <noticeSignature>
            <noticeDate>11/24/2025</noticeDate>
                        <signature>  /s/ Youhao Dong, as Attorney-in-Fact for Alexander A. De Boo</signature>
        </noticeSignature>
	</formData>
    </edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
