DEXCOM INC — Director's Dealing 2015

Nov 12, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DEXCOM INC (DXCM)
CIK: 0001093557
Period of Report: 2015-11-09

Reporting Person: VALDES JORGE A (CTO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-11-09	Common Stock	M	30000.0	$7.79	Acquired	122437	Direct
2015-11-09	Common Stock	S	30000.0	$83.8598	Disposed	92437	Direct
2015-11-09	Common Stock	S	10500.0	$83.3622	Disposed	7272	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-11-09	Non-Qualified Stock Option (right to buy)	$7.79	M	30000.0	Disposed	2017-08-02	Common Stock (30000)	Direct

Footnotes

F1: This transaction was executed in multiple trades at prices ranging from $83.35 to $83.97. The price above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.

F2: Included in this number are 92,437 unvested restricted stock units, 45,000 of which were granted on March 8, 2015 and shall vest through March 8, 2018, 35,500 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: This transaction was executed in multiple trades at prices ranging from $83.02 to $83.98. The price above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.

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.