DEXCOM INC — Director's Dealing 2012

Mar 12, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DEXCOM INC (DXCM)
CIK: 0001093557
Period of Report: 2012-03-08

Reporting Person: SAYER KEVIN R (Director, President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-03-08	Common Stock	A	125000	$0.001	Acquired	242460	Direct

Footnotes

F1: Represents a grant of restricted stock units that are exempt from Section 16 b-3 and are subject to vesting over a 36 month period from the date of grant as follows: 1/3 shall vest 12 months from the Grant Date, and the remaining balance shall vest in four equal installments over the following 24 months. Share units represent a contingent right to receive one share of DexCom, Inc. common stock.

F2: Included in this number are 98,886 restricted stock units subject to vesting over a 36 month period following the grant date of June 1, 2011 as follows: 1/3 shall vest 12 months from the Grant Date, and the remaining balance shall vest in four equal installments over the following 24 months.