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: DOUBLEDAY RICHARD (EVP Chief Commercial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-03-11	Common Stock	S	140	$245.7111	Disposed	60168	Direct
2020-03-11	Common Stock	S	189	$250.02	Disposed	59979	Direct
2020-03-11	Common Stock	S	7974	$265.426	Disposed	52005	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	10714	Indirect

Footnotes

F1: 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.

F2: This transaction was executed in multiple trades at prices ranging from $245.62 to $246.3512. 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: Included in this number are 35,492 unvested restricted stock units, 11,748 of which were granted on March 8, 2020 and shall vest through March 8, 2023, 10,910 of which were granted on March 8, 2019 and shall vest through March 8, 2022 and 12,834 of which were granted on March 8, 2018 and shall vest through March 8, 2021.

F4: This transaction was executed in multiple trades at prices ranging from $250.02 to $250.0201. 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: Shares are held by the Doubleday Living Trust U/A/D 5/26/2015, with respect to which the reporting person is a trustee.