DEXCOM INC — Director's Dealing 2018

Sep 13, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DEXCOM INC (DXCM)
CIK: 0001093557
Period of Report: 2018-09-10

Reporting Person: Leach Jacob Steven (SVP, Research & Development)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-09-10	Common Stock	S	1936	$143.7552	Disposed	96962	Direct
2018-09-10	Common Stock	S	2678	$143.7552	Disposed	94284	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	11824	Indirect
Common Stock	47600	Indirect

Footnotes

F1: 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.

F2: Included in this number are 46,994 unvested restricted stock units, 30,093 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 11,567 of which were granted on March 8, 2017 and shall vest through March 8, 2020 and 5,334 of which were granted on March 8, 2016 shall vest through March 8, 2019.

F3: Shares are held by the Gregg Family Grandchildren's Trust UAD 12/30/2010, with respect to which the reporting person's spouse is a trustee.

F4: Shares are held by the Kyndra S. Leach Trust UAD 12/12/2012, with respect to which the reporting person's spouse is a trustee.