DEXCOM INC — Director's Dealing 2020

Oct 27, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DEXCOM INC (DXCM)
CIK: 0001093557
Period of Report: 2020-10-23

Reporting Person: DOUBLEDAY RICHARD (EVP Chief Commercial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-10-14	Common Stock	J	13313	$0.0	Disposed	33499	Direct
2020-10-14	Common Stock	J	13313	$0.0	Acquired	13313	Indirect
2020-10-23	Common Stock	S	247	$397.4908	Disposed	13066	Indirect
2020-10-23	Common Stock	S	156	$399.63	Disposed	12910	Indirect
2020-10-23	Common Stock	S	74	$402.5662	Disposed	12836	Indirect
2020-10-23	Common Stock	S	6	$403.49	Disposed	12830	Indirect
2020-10-23	Common Stock	S	213	$405.0695	Disposed	12617	Indirect
2020-10-23	Common Stock	S	263	$406.4479	Disposed	12354	Indirect
2020-10-23	Common Stock	S	68	$406.93	Disposed	12286	Indirect
2020-10-23	Common Stock	S	83	$408.0	Disposed	12203	Indirect

Footnotes

F1: Shares were transferred from direct ownership to ownership under the Doubleday Living Trust U/A/D 5/26/2015, with respect to which the reporting person is a trustee.

F2: Included in this number are 26,348 unvested restricted stock units, 11,748 of which were granted on March 8, 2020 and shall vest through March 8, 2023, 8,183 of which were granted on March 8, 2019 and shall vest through March 8, 2022 and 6,417 of which were granted on March 8, 2018 and shall vest through March 8, 2021.

F3: Shares are held by the Doubleday Living Trust U/A/D 5/26/2015, with respect to which the reporting person is a trustee.

F4: On June 15, 2020, Mr. Doubleday adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Doubleday. 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 $397.025 to $398.00. 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.

F6: This transaction was executed in multiple trades at prices ranging from $401.80 to $402.61. 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 $404.715 to $405.58. 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 $405.88 to $406.865. 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.