DEXCOM INC — Director's Dealing 2019

Mar 14, 2019

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DEXCOM INC (DXCM)
CIK: 0001093557
Period of Report: 2019-03-12

Reporting Person: MOY JEFFREY (SVP Operations)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2019-03-12	Common Stock	J	5500	$0.0	Disposed	53110	Direct
2019-03-12	Common Stock	J	3647	$0.0	Disposed	49463	Direct
2019-03-12	Common Stock	J	10031	$0.0	Disposed	39432	Direct
2019-03-12	Common Stock	J	5500	$0.0	Acquired	22211	Indirect
2019-03-12	Common Stock	J	3647	$0.0	Acquired	25858	Indirect
2019-03-12	Common Stock	J	10031	$0.0	Acquired	35889	Indirect
2019-03-12	Common Stock	S	1936	$142.7922	Disposed	33953	Indirect
2019-03-12	Common Stock	S	5001	$142.7922	Disposed	28952	Indirect
2019-03-12	Common Stock	S	1594	$142.7922	Disposed	27358	Indirect

Footnotes

F1: Shares were transferred from direct ownership to ownership under the Moy Family Trust upon vesting of previously awarded restricted stock units.

F2: Included in this number are 39,070 unvested restricted stock units, 11,714 of which were granted on March 8, 2019 and shall vest through March 8, 2022, 20,062 of which were granted on March 8, 2018 and shall vest through March 8, 2021 and 7,294 of which were granted on March 8, 2017 and shall vest through March 8, 2020.

F3: Shares are held by the Moy Family Trust U/A/D 12/09/2013, with respect to which the reporting person is a trustee.

F4: Represents the number of shares required to be sold by the reporting person to cover tax withholding obligations in connection with the vesting of RSUs. This sale is mandated by the Issuer's election under its equity incentive plans to require the satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary trade by the reporting person.