DXCM

SEC source: 0001093557-20-000189 · edgardoc.xml · nonDerivative · entry 6

Leach Jacob Steven · CIK 0001700255 · EVP Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 107,469

F1 · shares: On March 13, 2020, the reporting person adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Leach. The sale of shares set forth above were pursuant to the 10b5-1 Plan.

F8 · price: This transaction was executed in multiple trades at prices ranging from $379.00 to $379.91. 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 31,770 unvested restricted stock units, 11,748 of which were granted on March 8, 2020 and shall vest through March 8, 2023, 9,991 of which were granted on March 8, 2019 and shall vest through March 8, 2022, and 10,031 of which were granted on March 8, 2018 and shall vest through March 8, 2021.

SEC source: 0001093557-20-000189 · edgardoc.xml · nonDerivative · entry 5

Leach Jacob Steven · CIK 0001700255 · EVP Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 109,451

F1 · shares: On March 13, 2020, the reporting person adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Leach. The 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 $377.44 to $378.34. 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.

F3 · balance_after: Included in this number are 31,770 unvested restricted stock units, 11,748 of which were granted on March 8, 2020 and shall vest through March 8, 2023, 9,991 of which were granted on March 8, 2019 and shall vest through March 8, 2022, and 10,031 of which were granted on March 8, 2018 and shall vest through March 8, 2021.

SEC source: 0001093557-20-000189 · edgardoc.xml · nonDerivative · entry 4

Leach Jacob Steven · CIK 0001700255 · EVP Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 116,917

F1 · shares: On March 13, 2020, the reporting person adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Leach. The 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 $376.275 to $377.15. 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 31,770 unvested restricted stock units, 11,748 of which were granted on March 8, 2020 and shall vest through March 8, 2023, 9,991 of which were granted on March 8, 2019 and shall vest through March 8, 2022, and 10,031 of which were granted on March 8, 2018 and shall vest through March 8, 2021.

SEC source: 0001093557-20-000189 · edgardoc.xml · nonDerivative · entry 3

Leach Jacob Steven · CIK 0001700255 · EVP Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 120,398

F1 · shares: On March 13, 2020, the reporting person adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Leach. The 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 $375.27 to $376.261. 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 31,770 unvested restricted stock units, 11,748 of which were granted on March 8, 2020 and shall vest through March 8, 2023, 9,991 of which were granted on March 8, 2019 and shall vest through March 8, 2022, and 10,031 of which were granted on March 8, 2018 and shall vest through March 8, 2021.

SEC source: 0001093557-20-000189 · edgardoc.xml · nonDerivative · entry 2

Leach Jacob Steven · CIK 0001700255 · EVP Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 122,198

F1 · shares: On March 13, 2020, the reporting person adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Leach. The 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 $373.97 to $374.87. 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 31,770 unvested restricted stock units, 11,748 of which were granted on March 8, 2020 and shall vest through March 8, 2023, 9,991 of which were granted on March 8, 2019 and shall vest through March 8, 2022, and 10,031 of which were granted on March 8, 2018 and shall vest through March 8, 2021.

SEC source: 0001093557-20-000189 · edgardoc.xml · nonDerivative · entry 1

Leach Jacob Steven · CIK 0001700255 · EVP Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 124,798

F1 · shares: On March 13, 2020, the reporting person adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Leach. The 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 $372.636 to $373.08. 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 31,770 unvested restricted stock units, 11,748 of which were granted on March 8, 2020 and shall vest through March 8, 2023, 9,991 of which were granted on March 8, 2019 and shall vest through March 8, 2022, and 10,031 of which were granted on March 8, 2018 and shall vest through March 8, 2021.

SEC source: 0001093557-20-000187 · edgardoc.xml · nonDerivative · entry 1

Selvaraj Shelly Ramasamy · CIK 0001805707 · SVP Information Technology

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,841

F1 · shares: On May 30, 2019, Mr. Selvaraj adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Selvaraj. The shares set forth above were sold pursuant to the 10b5-1 Plan.

F2 · balance_after: Included in this number are 16,896 unvested restricted stock units, 5,483 of which were granted on March 8, 2020 and shall vest through March 8, 2023, 5,512 of which were granted on March 8, 2019 and shall vest through March 8, 2022, and 5,901 of which were granted on March 8, 2018 and shall vest through March 8, 2021.

SEC source: 0001093557-20-000185 · edgardoc.xml · nonDerivative · entry 2

ALTMAN STEVEN R · CIK 0001191307 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 46,980

F1 · shares: On February 25, 2020, Mr. Altman adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Altman. 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 $386.26 to $387.01. 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 · ownership.nature: Shares are held by the Steven R. and Lisa J. Altman, TTEE's Altman Family Trust DTD 8/21/92, with respect to which the reporting person is a trustee.

SEC source: 0001093557-20-000185 · edgardoc.xml · nonDerivative · entry 1

ALTMAN STEVEN R · CIK 0001191307 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 47,271

F1 · shares: On February 25, 2020, Mr. Altman adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Altman. 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 $385.125 to $385.78. 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.

F3 · ownership.nature: Shares are held by the Steven R. and Lisa J. Altman, TTEE's Altman Family Trust DTD 8/21/92, with respect to which the reporting person is a trustee.

SEC source: 0001093557-20-000186 · edgardoc.xml · nonDerivative · entry 13

KAHN BARBARA · CIK 0001520391 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 6,879

F1 · shares: On March 10, 2020, 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.

F14 · price: This transaction was executed in multiple trades at prices ranging from $386.21 to $386.41. 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 · ownership.nature: 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.

SEC source: 0001093557-20-000186 · edgardoc.xml · nonDerivative · entry 12

KAHN BARBARA · CIK 0001520391 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 7,079

F1 · shares: On March 10, 2020, 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.

F13 · price: This transaction was executed in multiple trades at prices ranging from $385.13 to $385.89. 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 · ownership.nature: 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.

SEC source: 0001093557-20-000186 · edgardoc.xml · nonDerivative · entry 11

KAHN BARBARA · CIK 0001520391 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 8,979

F1 · shares: On March 10, 2020, 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.

F12 · price: This transaction was executed in multiple trades at prices ranging from $383.99 to $384.93. 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.

F2 · ownership.nature: 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.

SEC source: 0001093557-20-000186 · edgardoc.xml · nonDerivative · entry 10

KAHN BARBARA · CIK 0001520391 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 9,479

F1 · shares: On March 10, 2020, 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.

F11 · price: This transaction was executed in multiple trades at prices ranging from $382.96 to $383.69. 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 · ownership.nature: 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.

SEC source: 0001093557-20-000186 · edgardoc.xml · nonDerivative · entry 9

KAHN BARBARA · CIK 0001520391 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 9,879

F1 · shares: On March 10, 2020, 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.

F10 · price: This transaction was executed in multiple trades at prices ranging from $381.80 to $382.57. 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 · ownership.nature: 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.

SEC source: 0001093557-20-000186 · edgardoc.xml · nonDerivative · entry 8

KAHN BARBARA · CIK 0001520391 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 10,179

F1 · shares: On March 10, 2020, 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.

F9 · price: This transaction was executed in multiple trades at prices ranging from $380.77 to $381.50. 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.

F2 · ownership.nature: 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.

SEC source: 0001093557-20-000186 · edgardoc.xml · nonDerivative · entry 7

KAHN BARBARA · CIK 0001520391 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 10,579

F1 · shares: On March 10, 2020, 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.

F8 · price: This transaction was executed in multiple trades at prices ranging from $379.72 to $380.44. 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 · ownership.nature: 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.

SEC source: 0001093557-20-000186 · edgardoc.xml · nonDerivative · entry 6

KAHN BARBARA · CIK 0001520391 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 11,079

F1 · shares: On March 10, 2020, 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.

F7 · price: This transaction was executed in multiple trades at prices ranging from $378.61 to $379.21. 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 · ownership.nature: 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.

SEC source: 0001093557-20-000186 · edgardoc.xml · nonDerivative · entry 5

KAHN BARBARA · CIK 0001520391 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 11,479

F1 · shares: On March 10, 2020, 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.

F6 · price: This transaction was executed in multiple trades at prices ranging from $377.14 to $378.04. 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 · ownership.nature: 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.

SEC source: 0001093557-20-000186 · edgardoc.xml · nonDerivative · entry 4

KAHN BARBARA · CIK 0001520391 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 12,079

F1 · shares: On March 10, 2020, 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 · price: This transaction was executed in multiple trades at prices ranging from $375.86 to $376.73. 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 · ownership.nature: 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.

SEC source: 0001093557-20-000186 · edgardoc.xml · nonDerivative · entry 3

KAHN BARBARA · CIK 0001520391 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 12,379

F1 · shares: On March 10, 2020, 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.

F4 · price: This transaction was executed in multiple trades at prices ranging from $374.80 to $375.64. 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 · ownership.nature: 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.

SEC source: 0001093557-20-000186 · edgardoc.xml · nonDerivative · entry 2

KAHN BARBARA · CIK 0001520391 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 13,279

F1 · shares: On March 10, 2020, 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.

F3 · price: This transaction was executed in multiple trades at prices ranging from $373.70 to $374.55. 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 · ownership.nature: 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.

SEC source: 0001093557-20-000186 · edgardoc.xml · nonDerivative · entry 1

KAHN BARBARA · CIK 0001520391 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 13,779

F1 · shares: On March 10, 2020, 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.

F2 · ownership.nature: 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.

SEC source: 0001093557-20-000181 · edgardoc.xml · nonDerivative · entry 1

Murphy Patrick Michael · CIK 0001692785 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,176

F1 · shares: On September 10, 2019, Mr. Murphy adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Murphy. The shares set forth above were sold pursuant to the 10b5-1 Plan.

F2 · balance_after: Included in this number are 22,225 unvested restricted stock units, 8,811 of which were granted on March 8, 2020 and shall vest through March 8, 2023, 7,809 of which were granted on March 8, 2019 and shall vest through March 8, 2022, and 5,605 of which were granted on March 8, 2018 and shall vest through March 8, 2021.

SEC source: 0001093557-20-000179 · edgardoc.xml · nonDerivative · entry 9

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 158,542

F1 · shares: 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.

F11 · price: This transaction was executed in multiple trades at prices ranging from $381.61 to $381.99. 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 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.

SEC source: 0001093557-20-000179 · edgardoc.xml · nonDerivative · entry 8

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 158,742

F1 · shares: 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.

F10 · price: This transaction was executed in multiple trades at prices ranging from $380.44 to $381.20. 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 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.

SEC source: 0001093557-20-000179 · edgardoc.xml · nonDerivative · entry 7

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 159,242

F1 · shares: 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.

F9 · price: This transaction was executed in multiple trades at prices ranging from $379.15 to $380.00. 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.

F3 · balance_after: 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.

SEC source: 0001093557-20-000179 · edgardoc.xml · nonDerivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 159,616

F1 · shares: 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.

F8 · price: This transaction was executed in multiple trades at prices ranging from $377.945 to $378.23. 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 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.

SEC source: 0001093557-20-000179 · 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: 160,016

F1 · shares: 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.

F7 · price: This transaction was executed in multiple trades at prices ranging from $376.55 to $377.33. 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 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.

SEC source: 0001093557-20-000179 · 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: 161,074

F1 · shares: 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.

F6 · price: This transaction was executed in multiple trades at prices ranging from $375.53 to $376.50. 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.

F3 · balance_after: 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.

SEC source: 0001093557-20-000179 · 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: 162,474

F1 · shares: 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.

F5 · price: This transaction was executed in multiple trades at prices ranging from $374.515 to $375.37. 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.

F3 · balance_after: 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.

SEC source: 0001093557-20-000179 · 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: 163,892

F1 · shares: 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 · price: This transaction was executed in multiple trades at prices ranging from $373.31 to $374.02. 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 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.

SEC source: 0001093557-20-000179 · 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: 164,292

F1 · shares: 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.

F2 · price: This transaction was executed in multiple trades at prices ranging from $372.04 to $372.58. 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.

F3 · balance_after: 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.

SEC source: 0001093557-20-000174 · edgardoc.xml · nonDerivative · entry 1

Selvaraj Shelly Ramasamy · CIK 0001805707 · SVP Information Technology

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,241

F1 · 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.

F2 · balance_after: Included in this number are 16,896 unvested restricted stock units, 5,483 of which were granted on March 8, 2020 and shall vest through March 8, 2023, 5,512 of which were granted on March 8, 2019 and shall vest through March 8, 2022, and 5,901 of which were granted on March 8, 2018 and shall vest through March 8, 2021.

SEC source: 0001093557-20-000172 · edgardoc.xml · nonDerivative · entry 1

Pacelli Steven Robert · CIK 0001359098 · EVP Strategy and Corporate Dev

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 77,470

F1 · shares: On June 11, 2019, Mr. Pacelli adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Pacelli. The shares set forth above were sold pursuant to the 10b5-1 Plan.

F2 · balance_after: Included in this number are 31,636 unvested restricted stock units, 8,811 of which were granted on March 8, 2020 and shall vest through March 8, 2023, 9,991 of which were granted on March 8, 2019 and shall vest through March 8, 2022, and 12,834 of which were granted on March 8, 2018 and shall vest through March 8, 2021.

SEC source: 0001093557-20-000170 · edgardoc.xml · nonDerivative · entry 1

DOUBLEDAY RICHARD · CIK 0001466545 · EVP Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 6,122

F1 · shares: On June 3, 2019, 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.

F2 · ownership.nature: Shares are held by the Doubleday Living Trust U/A/D 5/26/2015, with respect to which the reporting person is a trustee.

SEC source: 0001093557-20-000168 · edgardoc.xml · nonDerivative · entry 2

FOLETTA MARK G · CIK 0001236389 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 895

F2 · shares: The RSU Award was granted on May 22, 2020 and 100% of the RSU will vest on the earlier of the one year anniversary of the grant date or the date of DexCom Inc's 2021 Annual Meeting. Each share is represented by a restricted stock unit (RSU) that represents a contingent right to receive one share of DexCom, Inc. Common Stock upon settlement.

F3 · balance_after: Represents 895 restricted stock units which were granted on May 22, 2020 and will vest on the earlier of the one year anniversary of the grant date or the date of DexCom Inc's 2021 Annual Meeting.

SEC source: 0001093557-20-000166 · edgardoc.xml · nonDerivative · entry 2

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 787

F2 · shares: The RSU Award was granted on May 22, 2020 and 100% of the RSU will vest on the earlier of the one year anniversary of the grant date or the date of DexCom Inc's 2021 Annual Meeting. Each share is represented by a restricted stock unit (RSU) that represents a contingent right to receive one share of DexCom, Inc. Common Stock upon settlement.

F3 · balance_after: Included in this number are 787 restricted stock units which were granted on May 22, 2020 and will vest on the earlier of the one year anniversary of the grant date or the date of DexCom Inc's 2021 Annual Meeting.

SEC source: 0001093557-20-000164 · edgardoc.xml · nonDerivative · entry 2

ALTMAN STEVEN R · CIK 0001191307 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 806

F2 · shares: The RSU Award was granted on May 22, 2020 and 100% of the RSU will vest on the earlier of the one year anniversary of the grant date or the date of DexCom Inc's 2021 Annual Meeting. Each share is represented by a restricted stock unit (RSU) that represents a contingent right to receive one share of DexCom, Inc. Common Stock upon settlement.

F3 · balance_after: Represents 806 restricted stock units which were granted on May 22, 2020 and will vest on the earlier of the one year anniversary of the grant date or the date of DexCom Inc's 2021 Annual Meeting.

SEC source: 0001093557-20-000163 · edgardoc.xml · nonDerivative · entry 2

TOPOL ERIC · CIK 0001468345 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 833

F2 · shares: The RSU Award was granted on May 22, 2020 and 100% of the RSU will vest on the earlier of the one year anniversary of the grant date or the date of DexCom Inc's 2021 Annual Meeting. Each share is represented by a restricted stock unit (RSU) that represents a contingent right to receive one share of DexCom, Inc. Common Stock upon settlement.

F3 · balance_after: Represents 833 restricted stock units which were granted on May 22, 2020 and will vest on the earlier of the one year anniversary of the grant date or the date of DexCom Inc's 2021 Annual Meeting.

SEC source: 0001093557-20-000162 · edgardoc.xml · nonDerivative · entry 2

SKYLER JAY S · CIK 0001236386 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 822

F2 · shares: The RSU Award was granted on May 22, 2020 and 100% of the RSU will vest on the earlier of the one year anniversary of the grant date or the date of DexCom Inc's 2021 Annual Meeting. Each share is represented by a restricted stock unit (RSU) that represents a contingent right to receive one share of DexCom, Inc. Common Stock upon settlement.

F3 · balance_after: Represents 822 restricted stock units which were granted on May 22, 2020 and will vest on the earlier of the one year anniversary of the grant date or the date of DexCom Inc's 2020 Annual Meeting.

SEC source: 0001093557-20-000161 · edgardoc.xml · nonDerivative · entry 2

KAHN BARBARA · CIK 0001520391 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 787

F2 · shares: The RSU Award was granted on May 22, 2020 and 100% of the RSU will vest on the earlier of the one year anniversary of the grant date or the date of DexCom Inc's 2021 Annual Meeting. Each share is represented by a restricted stock unit (RSU) that represents a contingent right to receive one share of DexCom, Inc. Common Stock upon settlement.

F3 · balance_after: Represents 787 restricted stock units which were granted on May 22, 2020 and will vest on the earlier of the one year anniversary of the grant date or the date of DexCom Inc's 2021 Annual Meeting.

SEC source: 0001093557-20-000160 · edgardoc.xml · nonDerivative · entry 1

Heller Bridgette P · CIK 0001485616 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,823

F1 · shares: The RSU Award was granted on May 22, 2020 and 100% of the RSU will vest on the earlier of the one year anniversary of the grant date or the date of DexCom Inc's 2021 Annual Meeting. Each share is represented by a restricted stock unit (RSU) that represents a contingent right to receive one share of DexCom, Inc. Common Stock upon settlement.

F2 · balance_after: Included in this number are 3,823 unvested restricted stock units, 787 of which were granted on May 22, 2020 and shall vest on the earlier of the one year anniversary of the grant or the date of DexCom Inc's 2021 Annual Meeting and 3,036 of which were granted on September 13, 2019 and shall vest through September 13, 2022.

SEC source: 0001093557-20-000154 · edgardoc.xml · nonDerivative · entry 2

AUGUSTINOS NICHOLAS · CIK 0001238485 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 806

F3 · shares: The RSU Award was granted on May 22, 2020 and 100% of the RSU will vest on the earlier of the one year anniversary of the grant date or the date of DexCom Inc's 2021 Annual Meeting. Each share is represented by a restricted stock unit (RSU) that represents a contingent right to receive one share of DexCom, Inc. Common Stock upon settlement.

F2 · balance_after: Included in this number are 806 restricted stock units which were granted on May 22, 2020 and will vest on the earlier of the one year anniversary of the grant date or the date of DexCom Inc's 2021 Annual Meeting.

SEC source: 0001093557-20-000168 · edgardoc.xml · nonDerivative · entry 3

FOLETTA MARK G · CIK 0001236389 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 16,202

F1 · shares: Shares were transferred from direct ownership to ownership under the Mark G. and Mary E. Foletta, TTEE's for the Foletta Family Trust DTD 1/30/15, upon vesting of previously awarded restricted stock units.

F4 · balance_after: Shares are held by the Mark G. and Mary E. Foletta, TTEE's for the Foletta Family Trust DTD 1/30/15, with respect to which the reporting person is a trustee.

F4 · ownership.nature: Shares are held by the Mark G. and Mary E. Foletta, TTEE's for the Foletta Family Trust DTD 1/30/15, with respect to which the reporting person is a trustee.

SEC source: 0001093557-20-000168 · edgardoc.xml · nonDerivative · entry 1

FOLETTA MARK G · CIK 0001236389 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · shares: Shares were transferred from direct ownership to ownership under the Mark G. and Mary E. Foletta, TTEE's for the Foletta Family Trust DTD 1/30/15, upon vesting of previously awarded restricted stock units.

SEC source: 0001093557-20-000166 · edgardoc.xml · nonDerivative · entry 3

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 7,917

F1 · shares: Shares were transferred from direct ownership to ownership under the Richard A. Collins Revocable Trust upon vesting of previously awarded restricted stock units.

F4 · balance_after: Shares are held by the Richard A. Collins Revocable Trust, with respect to which the reporting person is a trustee.

F4 · ownership.nature: Shares are held by the Richard A. Collins Revocable Trust, with respect to which the reporting person is a trustee.

SEC source: 0001093557-20-000166 · edgardoc.xml · nonDerivative · entry 1

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · shares: Shares were transferred from direct ownership to ownership under the Richard A. Collins Revocable Trust upon vesting of previously awarded restricted stock units.

SEC source: 0001093557-20-000164 · edgardoc.xml · nonDerivative · entry 3

ALTMAN STEVEN R · CIK 0001191307 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 48,980

F1 · shares: Shares were transferred from direct ownership to ownership under the Steven R. and Lisa J. Altman, TTEE's Altman Family Trust DTD 8/21/92, upon vesting of previously awarded restricted stock units.

F4 · balance_after: Shares are held by the Steven R. and Lisa J. Altman, TTEE's Altman Family Trust DTD 8/21/92, with respect to which the reporting person is a trustee.

F4 · ownership.nature: Shares are held by the Steven R. and Lisa J. Altman, TTEE's Altman Family Trust DTD 8/21/92, with respect to which the reporting person is a trustee.

SEC source: 0001093557-20-000164 · edgardoc.xml · nonDerivative · entry 1

ALTMAN STEVEN R · CIK 0001191307 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · shares: Shares were transferred from direct ownership to ownership under the Steven R. and Lisa J. Altman, TTEE's Altman Family Trust DTD 8/21/92, upon vesting of previously awarded restricted stock units.

SEC source: 0001093557-20-000163 · edgardoc.xml · nonDerivative · entry 3

TOPOL ERIC · CIK 0001468345 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Family Holdings

Disclosed balance after: 91,014

F1 · shares: Shares were transferred from direct ownership to ownership under the Topol Family Holdings, LLC, upon vesting of previously awarded restricted stock units.

F4 · balance_after: Shares are held by Topol Family Holdings, LLC, with respect to which the reporting person is a manager and maintains voting rights of these shares.

F4 · ownership.nature: Shares are held by Topol Family Holdings, LLC, with respect to which the reporting person is a manager and maintains voting rights of these shares.