Form Type: 4

SEC EDGAR Link
Acccession Number:0001093557-19-000198
Date:2019-09-09
Issuer: DEXCOM INC (DXCM)
Original Submission Date:

Reporting Person:

ACE HEATHER S
6340 SEQUENCE DRIVE
SAN DIEGO, CA 92121

Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
Title of SecurityTransaction Date2a. Deemed Execution Date Transaction CodeSharesAcquired or DisposedPrice per share 5. Amount of Securities Beneficially Owned Following Reported Transaction 6. Ownership Form Direct or IndirectNature of Indirect Ownership
COMMON STOCK 2019-09-09 S 249 d $145.44 58,842 direct
COMMON STOCK 2019-09-09 S 4,351 d $150.11 54,491 direct
COMMON STOCK 2019-09-09 S 153 d $150.48 54,338 direct
COMMON STOCK 2019-09-09 S 420 d $151.56 53,918 direct
COMMON STOCK 2019-09-09 S 300 d $152.62 53,618 direct
COMMON STOCK 2019-09-09 S 40 d $153.79 53,578 direct
COMMON STOCK 2019-09-09 S 106 d $155.61 53,472 direct
COMMON STOCK 2019-09-09 S 240 d $156.42 53,232 direct
COMMON STOCK 2019-09-09 S 160 d $157.38 53,072 direct
COMMON STOCK 2019-09-09 S 280 d $158.33 52,792 direct
COMMON STOCK 2019-09-09 S 116 d $160.02 52,676 direct
Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, convertible securities
Title of Derivative Security Conversion or Exercise Price of Derivative Security Transaction Date Deemed Execution Date Transaction Code Number of Derivative Securities Acquired (A) or Disposed of (D) Date ExercisableExpiration Date Title and Amount of Securities Underlying Derivative Security Price of Derivative Security Number of derivative Securities Beneficially Owned Following Reported Transaction(s) Ownership Form: Direct (D) or Indirect (I) Nature of Indirect Beneficial Ownership
Footnotes
IDfootnote
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 $145.35 to $145.46. 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 37,283 unvested restricted stock units, 11,714 of which were granted on march 8, 2019 and shall vest through march 8, 2022, 15,047 of which were granted on march 8, 2018 and shall vest through march 8, 2021, 3,647 of which were granted on march 8, 2017 and shall vest through march 8, 2020 and 6,875 of which were granted on august 22, 2016 and shall vest through august 22, 2020.
f4 on august 30, 2018, ms. ace adopted a 10b5-1 plan. this 10b5-1 plan allows the orderly disposition of shares owned by ms. ace. 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 $150.17 to $150.78. 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 $151.22 to $152.18. 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 $152.26 to $152.95. 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 $153.73 to $153.85. 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 $155.00 to $155.72. 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 $156.00 to $156.90. 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.
f11 this transaction was executed in multiple trades at prices ranging from $157.05 to $157.99. 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.
f12 this transaction was executed in multiple trades at prices ranging from $158.00 to $158.50. 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.
f13 this transaction was executed in multiple trades at prices ranging from $160.00 to $160.06. 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.

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