<SEC-DOCUMENT>0001964306-24-000168.txt : 20240322
<SEC-HEADER>0001964306-24-000168.hdr.sgml : 20240322
<ACCEPTANCE-DATETIME>20240322161041
ACCESSION NUMBER:		0001964306-24-000168
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20240322
DATE AS OF CHANGE:		20240322

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ABM INDUSTRIES INC /DE/
		CENTRAL INDEX KEY:			0000771497
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-TO DWELLINGS & OTHER BUILDINGS [7340]
		ORGANIZATION NAME:           	07 Trade & Services
		IRS NUMBER:				941369354
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-08929
		FILM NUMBER:		24775312

	BUSINESS ADDRESS:	
		STREET 1:		ONE LIBERTY PLAZA
		STREET 2:		7TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10006
		BUSINESS PHONE:		212 297-0200

	MAIL ADDRESS:	
		STREET 1:		ONE LIBERTY PLAZA
		STREET 2:		7TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10006

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ABM INDUSTRIES INC
		DATE OF NAME CHANGE:	19950110

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AMERICAN BUILDING MAINTENANCE INDUSTRIES INC
		DATE OF NAME CHANGE:	19920703

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CHIN DEAN A
		CENTRAL INDEX KEY:			0001492719
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		551 FIFTH AVENUE
		STREET 2:		SUITE 300
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10176
</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>0001492719</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0000771497</issuerCik>
      <issuerName>ABM INDUSTRIES INC /DE/</issuerName>
      <secFileNumber>001-08929</secFileNumber>
      <issuerAddress>
        <com:street1>ONE LIBERTY PLAZA</com:street1>
        <com:street2>7TH FLOOR</com:street2>
        <com:city>NEW YORK</com:city>
        <com:stateOrCountry>NY</com:stateOrCountry>
        <com:zipCode>10006</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>212 297-0200</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>CHIN DEAN A</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Merrill Lynch</name>
        <address>
          <com:street1>225 Liberty St</com:street1>
          <com:street2>Floor 37</com:street2>
          <com:city>New York</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>10281</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>5465</noOfUnitsSold>
      <aggregateMarketValue>245323.85</aggregateMarketValue>
      <noOfUnitsOutstanding>63291484</noOfUnitsOutstanding>
      <approxSaleDate>03/22/2024</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <acquiredDate>01/07/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Vesting of restricted stock unit award</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>ABM INDUSTRIES INC /DE/</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>344</amountOfSecuritiesAcquired>
      <paymentDate>01/07/2023</paymentDate>
      <natureOfPayment>Granted as part of issuer equity compensation plan</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <acquiredDate>01/09/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Vesting of restricted stock unit award</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>ABM INDUSTRIES INC /DE/</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>1560</amountOfSecuritiesAcquired>
      <paymentDate>01/09/2023</paymentDate>
      <natureOfPayment>Granted as part of issuer equity compensation plan</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <acquiredDate>01/09/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Vesting of performance unit award</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>ABM INDUSTRIES INC /DE/</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>3561</amountOfSecuritiesAcquired>
      <paymentDate>01/09/2023</paymentDate>
      <natureOfPayment>Granted as part of issuer equity compensation plan</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>03/22/2024</noticeDate>
      <signature>DEAN CHIN</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
