DEXCOM INC — Director's Dealing 2019

Jan 17, 2019

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DEXCOM INC (DXCM)
CIK: 0001093557
Period of Report: 2019-01-14

Reporting Person: KAHN BARBARA (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-06-01	Common Stock	J	4353	$0.0	Disposed	3449	Direct
2018-06-01	Common Stock	J	4353	$0.0	Acquired	27448	Indirect
2019-01-14	Common Stock	S	1730	$141.1569	Disposed	25718	Indirect
2019-01-14	Common Stock	S	3558	$142.066	Disposed	22160	Indirect
2019-01-14	Common Stock	S	5343	$142.8326	Disposed	16817	Indirect

Footnotes

F1: Shares were transferred from direct ownership to ownership under the Barbara Kahn TTEE Barbara Kahn Rev TRT DTD 6/26/96 & Robert Meyer TTEE Robert Meyer Rev Trst DTD 6/26/96, with respect to which the reporting person is a trustee.

F2: Represents 3,449 unvested restricted stock units which were granted on June 1, 2018 and will vest on the earlier of the one year anniversary of the grant date or the date of DexCom Inc's 2019 Annual Meeting.

F3: Shares are held by the Barbara Kahn TTEE Barbara Kahn Rev TRT DTD 6/26/96 & Robert Meyer TTEE Robert Meyer Rev Trst DTD 6/26/96, with respect to which the reporting person is a trustee.

F4: On December 12, 2018, Ms. Kahn adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Ms. Kahn. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F5: This transaction was executed in multiple trades at prices ranging from $140.51 to $141.43. 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 $141.51 to $142.48. 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 $142.51 to $143.34. 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.