DEXCOM INC — Director's Dealing 2016

Jan 13, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DEXCOM INC (DXCM)
CIK: 0001093557
Period of Report: 2016-01-11

Reporting Person: VALDES JORGE A (CTO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-01-11	Common Stock	S	1641.0	$78.4335	Disposed	5631	Indirect
2016-01-12	Common Stock	S	5610.0	$80.1646	Disposed	21	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	92437	Direct

Footnotes

F1: On November 9, 2015 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.

F2: This transaction was executed in multiple trades at prices ranging from $77.45 to $80.61. 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.

F3: 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.

F4: This transaction was executed in multiple trades at prices ranging from $79.00 to $81.77. 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.