DEXCOM INC — Director's Dealing 2016

May 10, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DEXCOM INC (DXCM)
CIK: 0001093557
Period of Report: 2016-05-09

Reporting Person: LISTER JOHN (General Manager, EMEA)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-05-09	Common Stock	S	3560.0	$62.5	Disposed	69454	Direct

Footnotes

F1: On November 12, 2015, Mr. Lister adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Lister. The shares set forth above were sold pursuant to the 10b5-1 Plan.

F2: Included in this number are 46,667 unvested restricted stock units 25,000 of which were granted on March 8, 2015 and shall vest through March 8, 2018 and 21,667 of which were granted on March 8, 2014 and shall vest through March 8, 2017.