DEXCOM INC — Director's Dealing 2021

Dec 2, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DEXCOM INC (DXCM)
CIK: 0001093557
Period of Report: 2021-12-01

Reporting Person: FOLETTA MARK G (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-12-01	Common Stock	S	41	$556.89	Disposed	13056	Indirect
2021-12-01	Common Stock	S	70	$558.7806	Disposed	12986	Indirect
2021-12-01	Common Stock	S	78	$561.8507	Disposed	12908	Indirect
2021-12-01	Common Stock	S	116	$562.7883	Disposed	12792	Indirect
2021-12-01	Common Stock	S	65	$564.2378	Disposed	12727	Indirect
2021-12-01	Common Stock	S	87	$565.5128	Disposed	12640	Indirect
2021-12-01	Common Stock	S	2	$567.3525	Disposed	12638	Indirect
2021-12-01	Common Stock	S	41	$569.5384	Disposed	12597	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1054	Direct

Footnotes

F1: On June 15, 2021, 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: 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.

F3: This transaction was executed in multiple trades at prices ranging from $558.40 to $559.14. 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: This transaction was executed in multiple trades at prices ranging from $561.31 to $561.925. 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 $562.48 to $563.00. 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.

F6: This transaction was executed in multiple trades at prices ranging from $563.83 to $564.74. 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 $565.13 to $565.55. 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 $567.295 to $567.41. 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 $568.675 to $569.56. 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.