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person · Reporting owner

SAYER KEVIN R

Disclosed activity across 1 company

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20527
SEC CIK
0001286858

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
DEXCOM INCDXCM · Entity 3114Director · Executive ChairAugust 20, 2026August 24, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

DEXCOM INC

Report date August 20, 2026 · Filed August 24, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect302,214 Last balance in matching sequence After 2026-08-20 transaction · row 3 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
3 source rows

Row 1 · 2026-08-20 · Sale · Disposed 19,308 · Balance 309,662

F1: On February 18, 2026, 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.

F2: This transaction was executed in multiple trades at prices ranging from $89.275 to $90.25. 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 106,972 unvested restricted stock units, 32,749 of which were granted on March 8, 2026 and shall vest through March 8, 2027, 56,993 of which were granted on March 8, 2025 and shall vest through March 8, 2028, and 17,230 of which were granted on March 8, 2024 and shall vest through March 8, 2027.

Row 2 · 2026-08-20 · Sale · Disposed 7,351 · Balance 302,311

F1: On February 18, 2026, 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 $90.32 to $91.19. 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 106,972 unvested restricted stock units, 32,749 of which were granted on March 8, 2026 and shall vest through March 8, 2027, 56,993 of which were granted on March 8, 2025 and shall vest through March 8, 2028, and 17,230 of which were granted on March 8, 2024 and shall vest through March 8, 2027.

Row 3 · 2026-08-20 · Sale · Disposed 97 · Balance 302,214

F1: On February 18, 2026, 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.

F3: Included in this number are 106,972 unvested restricted stock units, 32,749 of which were granted on March 8, 2026 and shall vest through March 8, 2027, 56,993 of which were granted on March 8, 2025 and shall vest through March 8, 2028, and 17,230 of which were granted on March 8, 2024 and shall vest through March 8, 2027.

Filing footnotes · ownership attribution and instrument terms

F1: On February 18, 2026, 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.

F2: This transaction was executed in multiple trades at prices ranging from $89.275 to $90.25. 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 106,972 unvested restricted stock units, 32,749 of which were granted on March 8, 2026 and shall vest through March 8, 2027, 56,993 of which were granted on March 8, 2025 and shall vest through March 8, 2028, and 17,230 of which were granted on March 8, 2024 and shall vest through March 8, 2027.

F4: This transaction was executed in multiple trades at prices ranging from $90.32 to $91.19. 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.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
May 13, 2019 Filed May 14, 2019 22:47 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 1,300 $116.30 $151,187.53
Disclosure

SEC source: 0001093557-19-000123 · edgardoc.xml · nonDerivative · entry 2

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO and Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 300,200

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F4 · price: This transaction was executed in multiple trades at prices ranging from $116.01 to $116.94. 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 · balance_after: Included in this number are 116,618 unvested restricted stock units, 35,829 of which were granted on March 8, 2019 and shall vest through March 8, 2022, 53,696 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 27,093 of which were granted on March 8, 2017 and shall vest through March 8, 2020.

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May 13, 2019 Filed May 14, 2019 22:47 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 4,600 $115.54 $531,466.52
Disclosure

SEC source: 0001093557-19-000123 · edgardoc.xml · nonDerivative · entry 1

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO and Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 301,500

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F2 · price: This transaction was executed in multiple trades at prices ranging from $115.00 to $115.99. 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.

F3 · balance_after: Included in this number are 116,618 unvested restricted stock units, 35,829 of which were granted on March 8, 2019 and shall vest through March 8, 2022, 53,696 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 27,093 of which were granted on March 8, 2017 and shall vest through March 8, 2020.

Read SEC document
April 15, 2019 Filed Apr 16, 2019 21:37 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 3,980 $119.56 $475,844.42
Disclosure

SEC source: 0001093557-19-000097 · edgardoc.xml · nonDerivative · entry 3

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO and Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 306,100

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F5 · price: This transaction was executed in multiple trades at prices ranging from $119.08 to $119.91. 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 · balance_after: Included in this number are 116,618 unvested restricted stock units, 35,829 of which were granted on March 8, 2019 and shall vest through March 8, 2022, 53,696 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 27,093 of which were granted on March 8, 2017 and shall vest through March 8, 2020.

Read SEC document
April 15, 2019 Filed Apr 16, 2019 21:37 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 900 $118.28 $106,448.04
Disclosure

SEC source: 0001093557-19-000097 · edgardoc.xml · nonDerivative · entry 2

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO and Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 310,080

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F4 · price: This transaction was executed in multiple trades at prices ranging from $117.91 to $118.76. 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 · balance_after: Included in this number are 116,618 unvested restricted stock units, 35,829 of which were granted on March 8, 2019 and shall vest through March 8, 2022, 53,696 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 27,093 of which were granted on March 8, 2017 and shall vest through March 8, 2020.

Read SEC document
April 15, 2019 Filed Apr 16, 2019 21:37 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 1,120 $117.12 $131,178.43
Disclosure

SEC source: 0001093557-19-000097 · edgardoc.xml · nonDerivative · entry 1

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO and Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 310,980

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F2 · price: This transaction was executed in multiple trades at prices ranging from $116.67 to $117.47. 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 · balance_after: Included in this number are 116,618 unvested restricted stock units, 35,829 of which were granted on March 8, 2019 and shall vest through March 8, 2022, 53,696 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 27,093 of which were granted on March 8, 2017 and shall vest through March 8, 2020.

Read SEC document
March 12, 2019 Filed Mar 13, 2019 23:01 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 7,478 $142.79 $1,067,800.07
Disclosure

SEC source: 0001093557-19-000085 · edgardoc.xml · nonDerivative · entry 5

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO and Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 312,100

F5 · shares: 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.

F3 · balance_after: Included in this number are 116,618 unvested restricted stock units, 35,829 of which were granted on March 8, 2019 and shall vest through March 8, 2022, 53,696 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 27,093 of which were granted on March 8, 2017 and shall vest through March 8, 2020.

Read SEC document
March 12, 2019 Filed Mar 13, 2019 23:01 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 12,334 $142.79 $1,761,198.99
Disclosure

SEC source: 0001093557-19-000085 · edgardoc.xml · nonDerivative · entry 4

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO and Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 319,578

F5 · shares: 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.

F3 · balance_after: Included in this number are 116,618 unvested restricted stock units, 35,829 of which were granted on March 8, 2019 and shall vest through March 8, 2022, 53,696 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 27,093 of which were granted on March 8, 2017 and shall vest through March 8, 2020.

Read SEC document
March 12, 2019 Filed Mar 13, 2019 23:01 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 6,754 $142.79 $964,418.52
Disclosure

SEC source: 0001093557-19-000085 · edgardoc.xml · nonDerivative · entry 3

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO and Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 331,912

F5 · shares: 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.

F3 · balance_after: Included in this number are 116,618 unvested restricted stock units, 35,829 of which were granted on March 8, 2019 and shall vest through March 8, 2022, 53,696 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 27,093 of which were granted on March 8, 2017 and shall vest through March 8, 2020.

Read SEC document
March 11, 2019 Filed Mar 13, 2019 23:01 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 2,200 $143.57 $315,843.44
Disclosure

SEC source: 0001093557-19-000085 · edgardoc.xml · nonDerivative · entry 2

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO and Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 338,666

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F4 · price: This transaction was executed in multiple trades at prices ranging from $143.03 to $143.98. 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 · balance_after: Included in this number are 116,618 unvested restricted stock units, 35,829 of which were granted on March 8, 2019 and shall vest through March 8, 2022, 53,696 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 27,093 of which were granted on March 8, 2017 and shall vest through March 8, 2020.

Read SEC document
March 11, 2019 Filed Mar 13, 2019 23:01 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 3,800 $142.64 $542,046.44
Disclosure

SEC source: 0001093557-19-000085 · edgardoc.xml · nonDerivative · entry 1

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO and Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 340,866

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F2 · price: This transaction was executed in multiple trades at prices ranging from $142.03 to $143.02. 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 · balance_after: Included in this number are 116,618 unvested restricted stock units, 35,829 of which were granted on March 8, 2019 and shall vest through March 8, 2022, 53,696 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 27,093 of which were granted on March 8, 2017 and shall vest through March 8, 2020.

Read SEC document
March 08, 2019 Filed Mar 12, 2019 00:47 UTC DEXCOM INC DXCM · Entity 3114 GrantCommon Stock 35,829 $0.00 $35.83
Disclosure

SEC source: 0001093557-19-000063 · edgardoc.xml · nonDerivative · entry 1

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO and Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 344,666

F1 · shares: Represents a grant of restricted stock units that are exempt from Section 16 b-3 and are subject to vesting over a 36 month period from the date of grant as follows: 1/3 shall vest 12 months from the Grant Date, and the remaining balance shall vest in four equal installments over the following 24 months. Share units represent a contingent right to receive one share of DexCom, Inc. common stock.

F2 · balance_after: Included in this number are 116,618 unvested restricted stock units, 35,829 of which were granted on March 8, 2019 and shall vest through March 8, 2022, 53,696 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 27,093 of which were granted on March 8, 2017 and shall vest through March 8, 2020.

Read SEC document
February 11, 2019 Filed Feb 14, 2019 00:23 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 800 $150.42 $120,339.52
Disclosure

SEC source: 0001093557-19-000021 · edgardoc.xml · nonDerivative · entry 3

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO and Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 308,837

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F5 · price: This transaction was executed in multiple trades at prices ranging from $149.83 to $150.71. 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 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
February 11, 2019 Filed Feb 14, 2019 00:23 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 3,100 $149.02 $461,968.82
Disclosure

SEC source: 0001093557-19-000021 · edgardoc.xml · nonDerivative · entry 2

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO and Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 309,637

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F4 · price: This transaction was executed in multiple trades at prices ranging from $148.58 to $149.47. 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 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
February 11, 2019 Filed Feb 14, 2019 00:23 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 2,100 $148.14 $311,091.27
Disclosure

SEC source: 0001093557-19-000021 · edgardoc.xml · nonDerivative · entry 1

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO and Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 312,737

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F2 · price: This transaction was executed in multiple trades at prices ranging from $147.58 to $148.51. 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 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
January 14, 2019 Filed Jan 15, 2019 22:30 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 1,024 $141.39 $144,781.31
Disclosure

SEC source: 0001093557-19-000009 · edgardoc.xml · nonDerivative · entry 2

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 314,837

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F4 · price: This transaction was executed in multiple trades at prices ranging from $141.30 to $141.51. 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 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
January 14, 2019 Filed Jan 15, 2019 22:30 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 4,976 $140.91 $701,148.75
Disclosure

SEC source: 0001093557-19-000009 · edgardoc.xml · nonDerivative · entry 1

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 315,861

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F2 · price: This transaction was executed in multiple trades at prices ranging from $140.35 to $141.28. 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 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
December 10, 2018 Filed Dec 13, 2018 02:08 UTC DEXCOM INC DXCM · Entity 3114 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 11,162 $0.00 Strike: $4.58 $0.00
Disclosure

SEC source: 0001093557-18-000251 · edgardoc.xml · derivative · entry 6

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 11,162 shares

Expires 2019-05-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
December 10, 2018 Filed Dec 13, 2018 02:08 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 1,012 $123.18 $124,658.67
Disclosure

SEC source: 0001093557-18-000251 · edgardoc.xml · nonDerivative · entry 5

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 320,837

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F6 · price: This transaction was executed in multiple trades at prices ranging from $123.08 to $123.39. 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.

F2 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
December 10, 2018 Filed Dec 13, 2018 02:08 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 2,560 $122.41 $313,379.33
Disclosure

SEC source: 0001093557-18-000251 · edgardoc.xml · nonDerivative · entry 4

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 321,849

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F5 · price: This transaction was executed in multiple trades at prices ranging from $122.01 to $122.97. 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.

F2 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
December 10, 2018 Filed Dec 13, 2018 02:08 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 4,988 $121.64 $606,753.29
Disclosure

SEC source: 0001093557-18-000251 · edgardoc.xml · nonDerivative · entry 3

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 324,409

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F4 · price: This transaction was executed in multiple trades at prices ranging from $121.01 to $121.97. 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.

F2 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
December 10, 2018 Filed Dec 13, 2018 02:08 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 2,602 $120.39 $313,249.84
Disclosure

SEC source: 0001093557-18-000251 · edgardoc.xml · nonDerivative · entry 2

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 329,397

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F3 · price: This transaction was executed in multiple trades at prices ranging from $120.00 to $120.91. 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.

F2 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
December 10, 2018 Filed Dec 13, 2018 02:08 UTC DEXCOM INC DXCM · Entity 3114 Exercise / conversionCommon Stock 11,162 $4.58 $51,121.96
Disclosure

SEC source: 0001093557-18-000251 · edgardoc.xml · nonDerivative · entry 1

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 331,999

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F2 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
November 12, 2018 Filed Nov 15, 2018 00:29 UTC DEXCOM INC DXCM · Entity 3114 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 11,161 $0.00 Strike: $4.58 $0.00
Disclosure

SEC source: 0001093557-18-000238 · edgardoc.xml · derivative · entry 8

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,162

Underlying: Common Stock · 11,161 shares

Expires 2019-05-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
November 12, 2018 Filed Nov 15, 2018 00:29 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 2,395 $148.74 $356,231.58
Disclosure

SEC source: 0001093557-18-000238 · edgardoc.xml · nonDerivative · entry 7

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 320,837

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F7 · price: This transaction was executed in multiple trades at prices ranging from $148.32 to $149.09. 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.

F2 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
November 12, 2018 Filed Nov 15, 2018 00:29 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 2,766 $147.99 $409,337.02
Disclosure

SEC source: 0001093557-18-000238 · edgardoc.xml · nonDerivative · entry 6

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 323,232

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F6 · price: This transaction was executed in multiple trades at prices ranging from $147.28 to $148.26. 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.

F2 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
November 12, 2018 Filed Nov 15, 2018 00:29 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 2,000 $146.87 $293,739.40
Disclosure

SEC source: 0001093557-18-000238 · edgardoc.xml · nonDerivative · entry 5

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 325,998

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F5 · price: This transaction was executed in multiple trades at prices ranging from $146.22 to $147.21. 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.

F2 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
November 12, 2018 Filed Nov 15, 2018 00:29 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 1,700 $145.55 $247,430.07
Disclosure

SEC source: 0001093557-18-000238 · edgardoc.xml · nonDerivative · entry 4

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 327,998

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F4 · price: This transaction was executed in multiple trades at prices ranging from $145.19 to $146.10. 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.

F2 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
November 12, 2018 Filed Nov 15, 2018 00:29 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 500 $143.00 $71,500.00
Disclosure

SEC source: 0001093557-18-000238 · edgardoc.xml · nonDerivative · entry 3

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 329,698

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F2 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
November 12, 2018 Filed Nov 15, 2018 00:29 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 1,800 $142.25 $256,045.68
Disclosure

SEC source: 0001093557-18-000238 · edgardoc.xml · nonDerivative · entry 2

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 330,198

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F3 · price: This transaction was executed in multiple trades at prices ranging from $142.00 to $142.71. 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.

F2 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
November 12, 2018 Filed Nov 15, 2018 00:29 UTC DEXCOM INC DXCM · Entity 3114 Exercise / conversionCommon Stock 11,161 $4.58 $51,117.38
Disclosure

SEC source: 0001093557-18-000238 · edgardoc.xml · nonDerivative · entry 1

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 331,998

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F2 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
October 08, 2018 Filed Oct 10, 2018 23:48 UTC DEXCOM INC DXCM · Entity 3114 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 11,161 $0.00 Strike: $4.58 $0.00
Disclosure

SEC source: 0001093557-18-000215 · edgardoc.xml · derivative · entry 4

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,323

Underlying: Common Stock · 11,161 shares

Expires 2019-05-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
October 08, 2018 Filed Oct 10, 2018 23:48 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 4,354 $125.45 $546,201.46
Disclosure

SEC source: 0001093557-18-000215 · edgardoc.xml · nonDerivative · entry 3

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 320,837

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F4 · price: This transaction was executed in multiple trades at prices ranging from $125.00 to $125.96. 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.

F2 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
October 08, 2018 Filed Oct 10, 2018 23:48 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 6,807 $124.32 $846,231.26
Disclosure

SEC source: 0001093557-18-000215 · edgardoc.xml · nonDerivative · entry 2

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 325,191

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F3 · price: This transaction was executed in multiple trades at prices ranging from $124.00 to $124.97. 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.

F2 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
October 08, 2018 Filed Oct 10, 2018 23:48 UTC DEXCOM INC DXCM · Entity 3114 Exercise / conversionCommon Stock 11,161 $4.58 $51,117.38
Disclosure

SEC source: 0001093557-18-000215 · edgardoc.xml · nonDerivative · entry 1

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 331,998

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F2 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
September 10, 2018 Filed Sep 13, 2018 01:17 UTC DEXCOM INC DXCM · Entity 3114 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 11,161 $0.00 Strike: $4.58 $0.00
Disclosure

SEC source: 0001093557-18-000192 · edgardoc.xml · derivative · entry 7

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,484

Underlying: Common Stock · 11,161 shares

Expires 2019-05-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
September 10, 2018 Filed Sep 13, 2018 01:17 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 6,802 $143.76 $977,822.87
Disclosure

SEC source: 0001093557-18-000192 · edgardoc.xml · nonDerivative · entry 6

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 320,837

F6 · shares: 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.

F1 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
September 10, 2018 Filed Sep 13, 2018 01:17 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 7,532 $143.76 $1,082,764.17
Disclosure

SEC source: 0001093557-18-000192 · edgardoc.xml · nonDerivative · entry 5

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 327,639

F6 · shares: 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.

F1 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
September 10, 2018 Filed Sep 13, 2018 01:17 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 3,761 $144.04 $541,724.29
Disclosure

SEC source: 0001093557-18-000192 · edgardoc.xml · nonDerivative · entry 4

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 335,171

F2 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F5 · price: This transaction was executed in multiple trades at prices ranging from $143.78 to $144.28. 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.

F1 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
September 10, 2018 Filed Sep 13, 2018 01:17 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 5,900 $143.35 $845,791.55
Disclosure

SEC source: 0001093557-18-000192 · edgardoc.xml · nonDerivative · entry 3

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 338,932

F2 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F4 · price: This transaction was executed in multiple trades at prices ranging from $142.78 to $143.77. 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.

F1 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
September 10, 2018 Filed Sep 13, 2018 01:17 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 1,500 $142.31 $213,470.55
Disclosure

SEC source: 0001093557-18-000192 · edgardoc.xml · nonDerivative · entry 2

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 344,832

F2 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F3 · price: This transaction was executed in multiple trades at prices ranging from $141.77 to $142.72. 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.

F1 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
September 10, 2018 Filed Sep 13, 2018 01:17 UTC DEXCOM INC DXCM · Entity 3114 Exercise / conversionCommon Stock 11,161 $4.58 $51,117.38
Disclosure

SEC source: 0001093557-18-000192 · edgardoc.xml · nonDerivative · entry 1

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 346,332

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Included in this number are 136,185 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 40,640 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 15,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
August 13, 2018 Filed Aug 15, 2018 21:15 UTC DEXCOM INC DXCM · Entity 3114 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 11,161 $0.00 Strike: $4.58 $0.00
Disclosure

SEC source: 0001093557-18-000167 · edgardoc.xml · derivative · entry 5

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,645

Underlying: Common Stock · 11,161 shares

Expires 2019-05-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

Read SEC document
August 13, 2018 Filed Aug 15, 2018 21:15 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 1,178 $124.24 $146,351.78
Disclosure

SEC source: 0001093557-18-000167 · edgardoc.xml · nonDerivative · entry 4

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 335,171

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F5 · price: This transaction was executed in multiple trades at prices ranging from $124.06 to $124.37. 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.

F2 · balance_after: Included in this number are 164,731 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 54,186 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 30,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
August 13, 2018 Filed Aug 15, 2018 21:15 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 5,535 $123.65 $684,381.72
Disclosure

SEC source: 0001093557-18-000167 · edgardoc.xml · nonDerivative · entry 3

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 336,349

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F4 · price: This transaction was executed in multiple trades at prices ranging from $123.08 to $124.05. 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.

F2 · balance_after: Included in this number are 164,731 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 54,186 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 30,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

Read SEC document
August 13, 2018 Filed Aug 15, 2018 21:15 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 4,448 $122.41 $544,477.01
Disclosure

SEC source: 0001093557-18-000167 · edgardoc.xml · nonDerivative · entry 2

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 341,884

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F3 · price: This transaction was executed in multiple trades at prices ranging from $122.06 to $122.99. 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.

F2 · balance_after: Included in this number are 164,731 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 54,186 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 30,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

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August 13, 2018 Filed Aug 15, 2018 21:15 UTC DEXCOM INC DXCM · Entity 3114 Exercise / conversionCommon Stock 11,161 $4.58 $51,117.38
Disclosure

SEC source: 0001093557-18-000167 · edgardoc.xml · nonDerivative · entry 1

SAYER KEVIN R · CIK 0001286858 · Director · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 346,332

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: On May 10, 2018, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The exercise and sale of shares set forth above were pursuant to the 10b5-1 Plan.

F2 · balance_after: Included in this number are 164,731 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 54,186 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 30,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

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July 09, 2018 Filed Jul 12, 2018 01:07 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 2,400 $100.56 $241,333.68
Disclosure

SEC source: 0001093557-18-000145 · edgardoc.xml · nonDerivative · entry 3

SAYER KEVIN R · CIK 0001286858 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 335,171

F1 · shares: On May 10, 2018, 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.

F5 · price: This transaction was executed in multiple trades at prices ranging from $100.50 to 100.74. 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 · balance_after: Included in this number are 164,731 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 54,186 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 30,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

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July 09, 2018 Filed Jul 12, 2018 01:07 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 7,600 $99.92 $759,418.60
Disclosure

SEC source: 0001093557-18-000145 · edgardoc.xml · nonDerivative · entry 2

SAYER KEVIN R · CIK 0001286858 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 337,571

F1 · shares: On May 10, 2018, 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 · price: This transaction was executed in multiple trades at prices ranging from $99.49 to $100.31. 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 · balance_after: Included in this number are 164,731 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 54,186 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 30,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

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July 09, 2018 Filed Jul 12, 2018 01:07 UTC DEXCOM INC DXCM · Entity 3114 SaleCommon Stock 4,219 $99.10 $418,103.32
Disclosure

SEC source: 0001093557-18-000145 · edgardoc.xml · nonDerivative · entry 1

SAYER KEVIN R · CIK 0001286858 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 345,171

F1 · shares: On May 10, 2018, 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.

F2 · price: This transaction was executed in multiple trades at prices ranging from $98.38 to $99.35. 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 · balance_after: Included in this number are 164,731 unvested restricted stock units, 80,545 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 54,186 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 30,000 of which were granted on March 8, 2016 and shall vest through March 8, 2019.

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May 09, 2018 Filed May 10, 2018 23:54 UTC DEXCOM INC DXCM · Entity 3114 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 31,464 $0.00 Strike: $7.63 $0.00
Disclosure

SEC source: 0001093557-18-000089 · edgardoc.xml · derivative · entry 3

SAYER KEVIN R · CIK 0001286858 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 31,464 shares

Expires 2018-05-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.