    <SEC-DOCUMENT>0001093557-20-000122-index.html : 20200410
    <SEC-HEADER>0001093557-20-000122.hdr.sgml : 20200410
    <ACCEPTANCE-DATETIME>20200410163622
    ACCESSION NUMBER:		0001093557-20-000122
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		16
    CONFORMED PERIOD OF REPORT:	20200521
    FILED AS OF DATE:		20200410
    DATE AS OF CHANGE:		20200410
    EFFECTIVENESS DATE:		20200410

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			DEXCOM INC
    		CENTRAL INDEX KEY:			0001093557
    		STANDARD INDUSTRIAL CLASSIFICATION:	SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
    		IRS NUMBER:				330857544
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-51222
    		FILM NUMBER:		20786999

    	BUSINESS ADDRESS:
    		STREET 1:		6340 SEQUENCE DRIVE
    		CITY:			SAN DIEGO
    		STATE:			CA
    		ZIP:			92121
    		BUSINESS PHONE:		8582000200

    	MAIL ADDRESS:
    		STREET 1:		6340 SEQUENCE DRIVE
    		CITY:			SAN DIEGO
    		STATE:			CA
    		ZIP:			92121
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>dxcm-2020xdef14aproxy_acti.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: dxcm-2020xdef14aproxy_acti.htm

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    <FILENAME>ceosignature1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: ceosignature1.jpg

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    <SEQUENCE>3
    <FILENAME>chart-2862e85dee0e4627a6e1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: chart-2862e85dee0e4627a6e1.jpg

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    <SEQUENCE>4
    <FILENAME>chart-40c5112d2f994aa3ade1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: chart-40c5112d2f994aa3ade1.jpg

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    <SEQUENCE>5
    <FILENAME>chart-82aa3aa738684fa69591.jpg
    <DESCRIPTION>GRAPHIC
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    <FILENAME>chart-98068883008c4da6aa81.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: chart-98068883008c4da6aa81.jpg

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    <SEQUENCE>7
    <FILENAME>chart-a1a2ce6b89dc434aa691.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: chart-a1a2ce6b89dc434aa691.jpg

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    <SEQUENCE>8
    <FILENAME>chart-b6863eee98544b1083e1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: chart-b6863eee98544b1083e1.jpg

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    <SEQUENCE>9
    <FILENAME>chart-c324317ca0714f158cc1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: chart-c324317ca0714f158cc1.jpg

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    <SEQUENCE>10
    <FILENAME>dexcomgreenstandalone1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: dexcomgreenstandalone1.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>dexcomlogo11.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: dexcomlogo11.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>dexcomproxystatementcove00.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: dexcomproxystatementcove00.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>image51.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: image51.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>image91.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: image91.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>proxycardpage11.jpg
    <DESCRIPTION>PROXY CARD
    <TEXT>
    Document 15 - file: proxycardpage11.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>proxycardpage20011.jpg
    <DESCRIPTION>PROXY CARD
    <TEXT>
    Document 16 - file: proxycardpage20011.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>