DEXCOM INC — Director's Dealing 2020

Aug 12, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DEXCOM INC (DXCM)
CIK: 0001093557
Period of Report: 2020-08-10

Reporting Person: ALTMAN STEVEN R (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-08-10	Common Stock	S	513	$431.765	Disposed	44467	Indirect
2020-08-10	Common Stock	S	400	$433.5665	Disposed	44067	Indirect
2020-08-10	Common Stock	S	7	$434.0	Disposed	44060	Indirect
2020-08-10	Common Stock	S	571	$435.6968	Disposed	43489	Indirect
2020-08-10	Common Stock	S	125	$437.2417	Disposed	43364	Indirect
2020-08-10	Common Stock	S	384	$439.31	Disposed	42980	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	806	Direct

Footnotes

F1: On February 25, 2020, Mr. Altman adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Altman. 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 $431.315 to $432.14. 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.

F3: Shares are held by the Steven R. and Lisa J. Altman, TTEE's Altman Family Trust DTD 8/21/92, with respect to which the reporting person is a trustee.

F4: This transaction was executed in multiple trades at prices ranging from $432.81 to $433.70. 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 $435.025 to $436.22. 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.

F6: This transaction was executed in multiple trades at prices ranging from $437.025 to $437.67. 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.