DEXCOM INC — Director's Dealing 2020

Oct 30, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DEXCOM INC (DXCM)
CIK: 0001093557
Period of Report: 2020-10-29

Reporting Person: SAYER KEVIN R (Director, President, CEO and Chairman)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-10-29	Common Stock	S	600	$333.6273	Disposed	141977	Direct
2020-10-29	Common Stock	S	2910	$335.5285	Disposed	139067	Direct
2020-10-29	Common Stock	S	2428	$336.4331	Disposed	136639	Direct
2020-10-29	Common Stock	S	1676	$337.5023	Disposed	134963	Direct
2020-10-29	Common Stock	S	1200	$339.9286	Disposed	133763	Direct
2020-10-29	Common Stock	S	1430	$341.553	Disposed	132333	Direct
2020-10-29	Common Stock	S	547	$342.5249	Disposed	131786	Direct
2020-10-29	Common Stock	S	400	$343.61	Disposed	131386	Direct
2020-10-29	Common Stock	S	200	$345.26	Disposed	131186	Direct
2020-10-29	Common Stock	S	800	$347.91	Disposed	130386	Direct
2020-10-29	Common Stock	S	609	$350.2776	Disposed	129777	Direct
2020-10-29	Common Stock	S	300	$351.6417	Disposed	129477	Direct
2020-10-29	Common Stock	S	510	$352.76	Disposed	128967	Direct
2020-10-29	Common Stock	S	220	$354.0	Disposed	128747	Direct

Footnotes

F1: On July 31, 2020, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The shares set forth above were sold pursuant to the 10b5-1 Plan.

F2: This transaction was executed in multiple trades at prices ranging from $333.282 to $334.22. 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.

F3: Included in this number are 56,792 unvested restricted stock units, 25,453 of which were granted on March 8, 2020 and shall vest through March 8, 2023, 17,915 of which were granted on March 8, 2019 and shall vest through March 8, 2022, and 13,424 of which were granted on March 8, 2018 and shall vest through March 8, 2021.

F4: This transaction was executed in multiple trades at prices ranging from $334.94 to $335.89. 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.

F5: This transaction was executed in multiple trades at prices ranging from $335.98 to $336.935. 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.

F6: This transaction was executed in multiple trades at prices ranging from $337.015 to $337.769. 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.

F7: This transaction was executed in multiple trades at prices ranging from $339.28 to $340.26. 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.

F8: This transaction was executed in multiple trades at prices ranging from $341.125 to $342.00. 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.

F9: This transaction was executed in multiple trades at prices ranging from $342.30 to $342.85. 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.

F10: This transaction was executed in multiple trades at prices ranging from $345.255 to $345.265. 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.

F11: This transaction was executed in multiple trades at prices ranging from $350.175 to $350.30. 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.

F12: This transaction was executed in multiple trades at prices ranging from $351.405 to $352.115. 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.