DEXCOM INC — Director's Dealing 2020

Mar 14, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DEXCOM INC (DXCM)
CIK: 0001093557
Period of Report: 2020-03-11

Reporting Person: MOY JEFFREY (EVP Operations)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-03-11	Common Stock	J	12568	$0.0	Disposed	26651	Direct
2020-03-11	Common Stock	J	12568	$0.0	Acquired	37600	Indirect
2020-03-11	Common Stock	S	81	$245.4371	Disposed	37519	Indirect
2020-03-11	Common Stock	S	166	$250.1908	Disposed	37353	Indirect
2020-03-11	Common Stock	S	5956	$265.426	Disposed	31397	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 26,651 unvested restricted stock units, 8,811 of which were granted on March 8, 2020 and shall vest through March 8, 2023, 7,809 of which were granted on March 8, 2019 and shall vest through March 8, 2022, and 10,031 of which were granted on March 8, 2018 and shall vest through March 8, 2021.

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: Represents the number of shares required to be sold by the reporting person to cover tax withholding obligations in connection with the vesting of RSUs. This sale is mandated by the Issuer's election under its equity incentive plans to require the satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary trade by the reporting person.

F5: This transaction was executed in multiple trades at prices ranging from $245.38 to $246.35. 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 $250.12 to $250.23. 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.