Matthew Vincent Dolan - 10 Mar 2023 Form 4 Insider Report for DEXCOM INC (DXCM)

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	DXCM	Common Stock	Disposed to Issuer	$152,617	-1,370	-2.8%	$111.40	46,935	10 Mar 2023	Direct	F1, F2
transaction	DXCM	Common Stock	Disposed to Issuer	$183,808	-1,650	-3.5%	$111.40	45,285	10 Mar 2023	Direct	F1, F2
transaction	DXCM	Common Stock	Disposed to Issuer	$267,023	-2,397	-5.3%	$111.40	42,888	10 Mar 2023	Direct	F1, F2
transaction	DXCM	Common Stock	Disposed to Issuer	$87,671	-787	-1.8%	$111.40	42,101	10 Mar 2023	Direct	F1, F2
transaction	DXCM	Common Stock	Sale	$661,956	-6,229	-15%	$106.27	35,872	13 Mar 2023	Direct	F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Id	Content
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	Included in this number are 33,569 unvested restricted stock units, 21,769 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 7,704 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 4,096 of which were granted on March 8, 2021 and shall vest through March 8, 2024.
F3	On December 15, 2021, Mr. Dolan adopted a 10b5-1 Plan which was amended on December 6, 2022. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Dolan. The shares set forth above were sold pursuant to the 10b5-1 Plan.