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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1093557	Dexcom Inc	DXCM	Surgical & Medical Instruments & Apparatus (3841)	330857544

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1236389	G Mark Foletta	6340 Sequence Drive San Diego CA 92121		Yes	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2021-10-01	47	$538.02	14,050	No	4	S	Indirect	by Trust
Common Stock	Disposition	2021-10-01	6	$539.10	14,044	No	4	S	Indirect	by Trust
Common Stock	Disposition	2021-10-01	88	$540.93	13,956	No	4	S	Indirect	by Trust
Common Stock	Disposition	2021-10-01	126	$543.15	13,830	No	4	S	Indirect	by Trust
Common Stock	Disposition	2021-10-01	181	$544.39	13,649	No	4	S	Indirect	by Trust
Common Stock	Disposition	2021-10-01	51	$547.06	13,598	No	4	S	Indirect	by Trust
Common Stock	Disposition	2021-10-01	1	$551.58	13,597	No	4	S	Indirect	by Trust

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Indirect	by Trust
No	4	S	Indirect	by Trust
No	4	S	Indirect	by Trust
No	4	S	Indirect	by Trust
No	4	S	Indirect	by Trust
No	4	S	Indirect	by Trust
No	4	S	Indirect	by Trust

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	1,054	Direct

Footnotes

On June 15, 2021, Mr. Foletta adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Foletta. The shares set forth above were sold pursuant to the 10b5-1 Plan.
Shares are held by the Mark G. and Mary E. Foletta, TTEE's for the Foletta Family Trust DTD 1/30/15, with respect to which the reporting person is a trustee.
This transaction was executed in multiple trades at prices ranging from $542.79 to $543.64. The price above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.
This transaction was executed in multiple trades at prices ranging from $544.07 to $544.82. The price above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.
This transaction was executed in multiple trades at prices ranging from $547.00 to $547.12. The price above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.