DEXCOM INC — Director's Dealing 2020

Feb 21, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DEXCOM INC (DXCM)
CIK: 0001093557
Period of Report: 2020-02-18

Reporting Person: MOY JEFFREY (EVP Operations)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2019-09-11	Common Stock	J	4461	$0.0	Disposed	30408	Direct
2019-09-11	Common Stock	J	4461	$0.0	Acquired	31819	Indirect
2020-02-18	Common Stock	S	610	$283.369	Disposed	31209	Indirect
2020-02-18	Common Stock	S	1694	$284.2265	Disposed	29515	Indirect
2020-02-18	Common Stock	S	800	$286.545	Disposed	28715	Indirect
2020-02-18	Common Stock	S	400	$287.4125	Disposed	28315	Indirect
2020-02-18	Common Stock	S	2795	$288.9863	Disposed	25520	Indirect
2020-02-18	Common Stock	S	200	$289.84	Disposed	25320	Indirect
2020-02-18	Common Stock	S	100	$290.98	Disposed	25220	Indirect

Footnotes

F1: Shares were transferred from direct ownership to ownership under the Moy Family Trust upon vesting of previously awarded restricted stock units.

F2: Included in this number are 30,408 unvested restricted stock units, 11,714 of which were granted on March 8, 2019 and shall vest through March 8, 2022, 15,047 of which were granted on March 8, 2018 and shall vest through March 8, 2021 and 3,647 of which were granted on March 8, 2017 and shall vest through March 8, 2020.

F3: Shares are held by the Moy Family Trust U/A/D 12/09/2013, with respect to which the reporting person is a trustee.

F4: On November 20, 2019, Mr. Moy adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Moy. The shares set forth above were sold pursuant to the 10b5-1 Plan.

F5: This transaction was executed in multiple trades at prices ranging from $282.99 to $283.81. 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 $283.99 to $284.44. 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 $286.03 to $287.00. 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.

F8: This transaction was executed in multiple trades at prices ranging from $287.39 to $287.42. 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 $288.71 to $289.70. 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.