DEXCOM INC — Director's Dealing 2020

Mar 11, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DEXCOM INC (DXCM)
CIK: 0001093557
Period of Report: 2020-03-08

Reporting Person: SAYER KEVIN R (Director, President, CEO and Chairman)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-03-08	Common Stock	A	25453	$0.001	Acquired	216390	Direct
2020-03-09	Common Stock	S	254	$261.6299	Disposed	216136	Direct
2020-03-09	Common Stock	S	250	$262.0	Disposed	215886	Direct
2020-03-09	Common Stock	S	250	$263.15	Disposed	215636	Direct
2020-03-09	Common Stock	S	150	$264.7167	Disposed	215486	Direct
2020-03-09	Common Stock	S	1152	$267.2062	Disposed	214334	Direct
2020-03-09	Common Stock	S	1098	$268.0123	Disposed	213236	Direct
2020-03-09	Common Stock	S	250	$269.0	Disposed	212986	Direct
2020-03-09	Common Stock	S	200	$271.46	Disposed	212786	Direct
2020-03-09	Common Stock	S	2276	$272.5141	Disposed	210510	Direct
2020-03-09	Common Stock	S	120	$273.0542	Disposed	210390	Direct

Footnotes

F1: Represents a grant of restricted stock units that are exempt from Section 16 b-3 and are subject to vesting in three equal annual installments from the date of grant. Share units represent a contingent right to receive one share of DexCom, Inc. Common Stock.

F2: Included in this number are 76,187 unvested restricted stock units, 25,453 of which were granted on March 8, 2020 and shall vest through March 8, 2023, 23,886 of which were granted on March 8, 2019 and shall vest through March 8, 2022, and 26,848 of which were granted on March 8, 2018 and shall vest through March 8, 2021.

F3: On May 15, 2019, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The shares set forth above were sold pursuant to the 10b5-1 Plan.

F4: This transaction was executed in multiple trades at prices ranging from $261.00 to $261.80. 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: This transaction was executed in multiple trades at prices ranging from $264.29 to $264.93. 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 $266.71 to $267.66. 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 $267.99 to $268.11. 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 $271.00 to $271.99. 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 $272.00 to $272.99. 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.

F10: This transaction was executed in multiple trades at prices ranging from $273.025 to $273.06. 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.