DEXCOM INC — Director's Dealing 2016

Mar 10, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DEXCOM INC (DXCM)
CIK: 0001093557
Period of Report: 2016-03-08

Reporting Person: VALDES JORGE A (CTO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-03-08	Common Stock	A	38000.0	$0.0010	Acquired	130437	Direct
2016-03-08	Common Stock	J	11833.0	$66.1	Disposed	118604	Direct
2016-03-08	Common Stock	J	15000.0	$66.1	Disposed	103604	Direct
2016-03-08	Common Stock	J	11833.0	$66.1	Acquired	11854	Indirect
2016-03-08	Common Stock	J	15000.0	$66.1	Acquired	26854	Indirect

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 103,604 unvested restricted stock units, 38,000 of which were granted on March 8, 2016 and shall vest on March 8, 2019, 30,000 of which were granted on March 8, 2015 and shall vest through March 8, 2018, 23,667 of which were granted on March 8, 2014 and shall vest through March 8, 2017, and 11,937 of which were granted on March 11, 2013 and shall vest through March 11, 2016.

F3: Shares were transferred from direct ownership to ownership under the Valdes-Lopez-Calleja Family Trust upon vesting of previously awarded restricted stock units.

F4: 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.