DEXCOM INC — Director's Dealing 2020

Mar 5, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DEXCOM INC (DXCM)
CIK: 0001093557
Period of Report: 2020-03-03

Reporting Person: FOLETTA MARK G (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-03-03	Common Stock	S	107	$270.6262	Disposed	14040	Indirect
2020-03-03	Common Stock	S	152	$271.5393	Disposed	13888	Indirect
2020-03-03	Common Stock	S	81	$272.82	Disposed	13807	Indirect
2020-03-03	Common Stock	S	155	$274.8834	Disposed	13652	Indirect
2020-03-03	Common Stock	S	114	$275.5611	Disposed	13538	Indirect
2020-03-03	Common Stock	S	64	$277.4814	Disposed	13474	Indirect
2020-03-03	Common Stock	S	31	$279.599	Disposed	13443	Indirect
2020-03-03	Common Stock	S	53	$281.605	Disposed	13390	Indirect
2020-03-03	Common Stock	S	84	$282.77	Disposed	13306	Indirect
2020-03-03	Common Stock	S	75	$285.4808	Disposed	13231	Indirect
2020-03-03	Common Stock	S	84	$288.26	Disposed	13147	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	3055	Direct

Footnotes

F1: On August 30, 2019, Mr. Foletta adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Foletta. 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 $270.04 to $271.02. 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: Shares are held by the Mark G. and Mary E. Foletta, TTEE's for the Foletta Family Trust DTD 1/30/15, with respect to which the reporting person is a trustee.

F4: This transaction was executed in multiple trades at prices ranging from $271.37 to $271.68. 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 $274.195 to $275.185. 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 $275.385 to $275.66. 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 $276.70 to $277.62. 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 $278.985 to $279.935. 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.

F9: This transaction was executed in multiple trades at prices ranging from $285.445 to $286.34. 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.