DEXCOM INC — Director's Dealing 2014

Feb 27, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DEXCOM INC (DXCM)
CIK: 0001093557
Period of Report: 2014-02-25

Reporting Person: TOPOL ERIC (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-02-25	Common Stock	S	50000.0	$45.1714	Disposed	90909	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	12207	Direct

Footnotes

F1: On December 30, 2013, Dr. Topol exercised 98,706 stock options granted to him on July 9, 2009. The 50,000 shares set forth above were sold to cover the tax liability which accrued upon the exercise of the 98,706 stock options.

F2: This transaction was executed in multiple trades at prices ranging from $45.00 to $45.99. 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 issurer full information regarding the number of shares and prices at which the transactions were effected.

F3: Shares are held by Topol Family Holdings, LLC, with respect to which the reporting person is a manager and maintains voting rights of these shares.