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    ACCESSION NUMBER:		0001193125-17-023681
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		24
    CONFORMED PERIOD OF REPORT:	20170309
    FILED AS OF DATE:		20170130
    DATE AS OF CHANGE:		20170130
    EFFECTIVENESS DATE:		20170130

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			CABOT CORP
    		CENTRAL INDEX KEY:			0000016040
    		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS CHEMICAL PRODUCTS [2890]
    		IRS NUMBER:				042271897
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			0939

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-05667
    		FILM NUMBER:		17558098

    	BUSINESS ADDRESS:
    		STREET 1:		TWO SEAPORT LANE SUITE 1300
    		CITY:			BOSTON
    		STATE:			MA
    		ZIP:			02210
    		BUSINESS PHONE:		6173450100

    	MAIL ADDRESS:
    		STREET 1:		TWO SEAPORT LANE SUITE 1300
    		CITY:			BOSTON
    		STATE:			MA
    		ZIP:			02210

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	CABOT GODFREY L INC
    		DATE OF NAME CHANGE:	19680418
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