DEXCOM INC — Director's Dealing 2014

Aug 19, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DEXCOM INC (DXCM)
CIK: 0001093557
Period of Report: 2014-08-15

Reporting Person: GREGG TERRANCE H (Director, CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-08-15	Common Stock	M	5000.0	$6.85	Acquired	400626	Direct
2014-08-15	Common Stock	S	5000.0	$44.0581	Disposed	395626	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2014-08-15	Non-Qualified Stock Option (right to buy)	$6.85	M	5000.0	Disposed	2017-06-19	Common Stock (5000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	11461	Indirect
Common Stock	662889	Indirect

Footnotes

F1: Included in this number are 157,423 unvested restricted stock units granted on March 8, 2014, 5,078 of which shall vest each month through March 8, 2017, and 96,485 unvested restricted stock units granted on March 11, 2013, 5,078 of which shall vest each month through March 11, 2016.

F2: Shares are held by the Gregg Family Trust U/A/D 12/23/1998, with respect to which the reporting person is a trustee.