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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
1343856	A Jorge Valdes	6340 Sequence Drive San Diego CA 92121	Cto	No	Yes	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	Acquisiton	2017-02-01	13,900	$9.80	86,234	No	4	M	Direct
Common Stock	Disposition	2017-02-01	13,900	$80.00	72,334	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Non-Qualified Stock Option (right to buy)	Disposition	2017-02-01	13,900	$80.00	13,900	$9.80

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
7,000	2011-03-12	2020-03-12	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	3,499	Indirect	by Trust

Footnotes

On November 4, 2016 Mr. Valdes adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Valdes. The shares set forth above were sold pursuant to the 10b5-1 Plan.
Included in this number are 72,334 unvested restricted stock units, 38,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019, 22,500 of which were granted on March 8, 2015 and shall vest through March 8, 2018 and 11,834 of which were granted on March 8, 2014 and shall vest through March 8, 2017.
Shares are held by the Valdes-Lopez-Calleja Family Trust U/A/D 05/18/2011, with respect to which the reporting person is a trustee.