DXCM

SEC source: 0001093557-24-000064 · edgardoc.xml · nonDerivative · entry 1

Dolan Matthew Vincent · CIK 0001914994 · EVP Strategy and Corporate Dev

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 42,377

F1 · shares: On December 15, 2023, Mr. Dolan adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Dolan. The shares set forth above were sold pursuant to the 10b5-1 Plan.

F2 · balance_after: Included in this number are 40,075 unvested restricted stock units, 21,711 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 14,512 of which were granted on March 8, 2023 and shall vest through March 8, 2026, and 3,852 of which were granted on March 8, 2022 and shall vest through March 8, 2025.

SEC source: 0001093557-24-000062 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 283,893

F1 · shares: On December 12, 2023, 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 $138.385 to $139.15. 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 109,641 unvested restricted stock units, 51,692 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 36,281 of which were granted on March 9, 2023 and shall vest through March 8, 2026, 21,668 of which were granted on March 8, 2022 and shall vest through March 8, 2025.

SEC source: 0001093557-24-000062 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 306,254

F1 · shares: On December 12, 2023, 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 $137.61 to $138.36. 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 109,641 unvested restricted stock units, 51,692 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 36,281 of which were granted on March 9, 2023 and shall vest through March 8, 2026, 21,668 of which were granted on March 8, 2022 and shall vest through March 8, 2025.

SEC source: 0001093557-24-000060 · edgardoc.xml · nonDerivative · entry 2

Brown Michael Jon · CIK 0001899922 · EVP Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 68,682

F1 · shares: On December 15, 2022, Mr. Brown adopted a 10b5-1 Plan which was amended on August 29, 2023. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Brown. The shares set forth above were sold pursuant to the 10b5-1 Plan.

F3 · balance_after: Included in this number are 60,303 unvested restricted stock units, 21,711 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 14,512 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 24,080 of which were granted on March 8, 2022 and shall vest through March 8, 2026.

SEC source: 0001093557-24-000060 · edgardoc.xml · nonDerivative · entry 1

Brown Michael Jon · CIK 0001899922 · EVP Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 68,782

F1 · shares: On December 15, 2022, Mr. Brown adopted a 10b5-1 Plan which was amended on August 29, 2023. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Brown. 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 $139.56 to $140.407. 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 60,303 unvested restricted stock units, 21,711 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 14,512 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 24,080 of which were granted on March 8, 2022 and shall vest through March 8, 2026.

SEC source: 0001093557-24-000058 · edgardoc.xml · nonDerivative · entry 1

Stern Sadie · CIK 0001797971 · EVP Chief Human Resources

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 76,304

F1 · shares: On December 15, 2022, Ms. Stern adopted a 10b5-1 Plan which was amended on December 12, 2023. This 10b5-1 Plan allows the orderly disposition of shares owned by Ms. Stern. The shares set forth above were sold pursuant to the 10b5-1 Plan.

F2 · balance_after: Included in this number are 53,995 unvested restricted stock units, 21,711 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 14,512 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 7,060 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 2,504 of which were granted on December 15, 2021 and shall vest through December 15, 2024, 8,208 of which were granted on November 19, 2020 and shall vest through November 19, 2024.

SEC source: 0001093557-24-000056 · edgardoc.xml · nonDerivative · entry 3

Dolan Matthew Vincent · CIK 0001914994 · EVP Strategy & Corp Dev

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 44,367

F1 · shares: On December 15, 2023, Mr. Dolan adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Dolan. 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 $131.20 to $131.70. 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 40,075 unvested restricted stock units, 21,711 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 14,512 of which were granted on March 8, 2023 and shall vest through March 8, 2026, and 3,852 of which were granted on March 8, 2022 and shall vest through March 8, 2025.

SEC source: 0001093557-24-000056 · edgardoc.xml · nonDerivative · entry 2

Dolan Matthew Vincent · CIK 0001914994 · EVP Strategy & Corp Dev

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 45,370

F1 · shares: On December 15, 2023, Mr. Dolan adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Dolan. 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 $130.165 to $130.95. The price above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.

F3 · balance_after: Included in this number are 40,075 unvested restricted stock units, 21,711 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 14,512 of which were granted on March 8, 2023 and shall vest through March 8, 2026, and 3,852 of which were granted on March 8, 2022 and shall vest through March 8, 2025.

SEC source: 0001093557-24-000056 · edgardoc.xml · nonDerivative · entry 1

Dolan Matthew Vincent · CIK 0001914994 · EVP Strategy & Corp Dev

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 46,684

F1 · shares: On December 15, 2023, Mr. Dolan adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Dolan. 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 $128.78 to $129.645. 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 40,075 unvested restricted stock units, 21,711 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 14,512 of which were granted on March 8, 2023 and shall vest through March 8, 2026, and 3,852 of which were granted on March 8, 2022 and shall vest through March 8, 2025.

SEC source: 0001093557-24-000054 · edgardoc.xml · nonDerivative · entry 1

Sylvain Jereme M · CIK 0001681267 · EVP Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,534

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 52,009 unvested restricted stock units, 26,053 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 14,512 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 7,060 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 4,384 of which were granted on December 15, 2021 and shall vest through December 15, 2024.

SEC source: 0001093557-24-000053 · edgardoc.xml · nonDerivative · entry 6

Stern Sadie · CIK 0001797971 · EVP Chief Human Resources

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 80,441

F3 · shares: On December 15, 2022, Ms. Stern adopted a 10b5-1 Plan which was amended on December 12, 2023. This 10b5-1 Plan allows the orderly disposition of shares owned by Ms. Stern. 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 $132.62 to $133.00. 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.

F2 · balance_after: Included in this number are 53,995 unvested restricted stock units, 21,711 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 14,512 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 7,060 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 2,504 of which were granted on December 15, 2021 and shall vest through December 15, 2024, 8,208 of which were granted on November 19, 2020 and shall vest through November 19, 2024.

SEC source: 0001093557-24-000053 · edgardoc.xml · nonDerivative · entry 5

Stern Sadie · CIK 0001797971 · EVP Chief Human Resources

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 80,516

F3 · shares: On December 15, 2022, Ms. Stern adopted a 10b5-1 Plan which was amended on December 12, 2023. This 10b5-1 Plan allows the orderly disposition of shares owned by Ms. Stern. 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 $131.36 to $131.80. The price above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · balance_after: Included in this number are 53,995 unvested restricted stock units, 21,711 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 14,512 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 7,060 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 2,504 of which were granted on December 15, 2021 and shall vest through December 15, 2024, 8,208 of which were granted on November 19, 2020 and shall vest through November 19, 2024.

SEC source: 0001093557-24-000053 · edgardoc.xml · nonDerivative · entry 4

Stern Sadie · CIK 0001797971 · EVP Chief Human Resources

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 80,818

F3 · shares: On December 15, 2022, Ms. Stern adopted a 10b5-1 Plan which was amended on December 12, 2023. This 10b5-1 Plan allows the orderly disposition of shares owned by Ms. Stern. 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 $133.00 to $133.92. 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 53,995 unvested restricted stock units, 21,711 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 14,512 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 7,060 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 2,504 of which were granted on December 15, 2021 and shall vest through December 15, 2024, 8,208 of which were granted on November 19, 2020 and shall vest through November 19, 2024.

SEC source: 0001093557-24-000053 · edgardoc.xml · nonDerivative · entry 3

Stern Sadie · CIK 0001797971 · EVP Chief Human Resources

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 84,115

F3 · shares: On December 15, 2022, Ms. Stern adopted a 10b5-1 Plan which was amended on December 12, 2023. This 10b5-1 Plan allows the orderly disposition of shares owned by Ms. Stern. 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 $131.98 to $132.86. 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 53,995 unvested restricted stock units, 21,711 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 14,512 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 7,060 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 2,504 of which were granted on December 15, 2021 and shall vest through December 15, 2024, 8,208 of which were granted on November 19, 2020 and shall vest through November 19, 2024.

SEC source: 0001093557-24-000053 · edgardoc.xml · nonDerivative · entry 2

Stern Sadie · CIK 0001797971 · EVP Chief Human Resources

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 86,692

F3 · shares: On December 15, 2022, Ms. Stern adopted a 10b5-1 Plan which was amended on December 12, 2023. This 10b5-1 Plan allows the orderly disposition of shares owned by Ms. Stern. 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 $130.89 to $131.84. 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 53,995 unvested restricted stock units, 21,711 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 14,512 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 7,060 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 2,504 of which were granted on December 15, 2021 and shall vest through December 15, 2024, 8,208 of which were granted on November 19, 2020 and shall vest through November 19, 2024.

SEC source: 0001093557-24-000053 · edgardoc.xml · nonDerivative · entry 1

Stern Sadie · CIK 0001797971 · EVP Chief Human Resources

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 89,129

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 53,995 unvested restricted stock units, 21,711 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 14,512 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 7,060 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 2,504 of which were granted on December 15, 2021 and shall vest through December 15, 2024, 8,208 of which were granted on November 19, 2020 and shall vest through November 19, 2024.

SEC source: 0001093557-24-000052 · edgardoc.xml · nonDerivative · entry 5

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 333,526

F3 · shares: On December 12, 2023, 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 $134.05 to $134.12. 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 109,641 unvested restricted stock units, 51,692 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 36,281 of which were granted on March 9, 2023 and shall vest through March 8, 2026, 21,668 of which were granted on March 8, 2022 and shall vest through March 8, 2025.

SEC source: 0001093557-24-000052 · edgardoc.xml · nonDerivative · entry 4

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 336,465

F3 · shares: On December 12, 2023, 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 $133.00 to $133.99. 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 109,641 unvested restricted stock units, 51,692 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 36,281 of which were granted on March 9, 2023 and shall vest through March 8, 2026, 21,668 of which were granted on March 8, 2022 and shall vest through March 8, 2025.

SEC source: 0001093557-24-000052 · edgardoc.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 357,395

F3 · shares: On December 12, 2023, 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 $131.90 to $132.88. 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 109,641 unvested restricted stock units, 51,692 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 36,281 of which were granted on March 9, 2023 and shall vest through March 8, 2026, 21,668 of which were granted on March 8, 2022 and shall vest through March 8, 2025.

SEC source: 0001093557-24-000052 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 372,388

F3 · shares: On December 12, 2023, 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 $130.89 to $131.84. 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 109,641 unvested restricted stock units, 51,692 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 36,281 of which were granted on March 9, 2023 and shall vest through March 8, 2026, 21,668 of which were granted on March 8, 2022 and shall vest through March 8, 2025.

SEC source: 0001093557-24-000052 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 384,858

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 109,641 unvested restricted stock units, 51,692 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 36,281 of which were granted on March 9, 2023 and shall vest through March 8, 2026, 21,668 of which were granted on March 8, 2022 and shall vest through March 8, 2025.

SEC source: 0001093557-24-000051 · edgardoc.xml · nonDerivative · entry 2

Leach Jacob Steven · CIK 0001700255 · EVP Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 266,177

F3 · shares: The transaction represents a gift by the Reporting Person of 7,736 shares to a charitable donor advised fund.

F2 · balance_after: Included in this number are 56,356 unvested restricted stock units, 26,053 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 16,931 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 8,988 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 4,384 of which were granted on December 15, 2021 and shall vest through December 15, 2024.

SEC source: 0001093557-24-000051 · edgardoc.xml · nonDerivative · entry 1

Leach Jacob Steven · CIK 0001700255 · EVP Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 273,913

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 56,356 unvested restricted stock units, 26,053 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 16,931 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 8,988 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 4,384 of which were granted on December 15, 2021 and shall vest through December 15, 2024.

SEC source: 0001093557-24-000050 · edgardoc.xml · nonDerivative · entry 1

Lawver Teri L · CIK 0001960596 · EVP Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,641

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 60,067 unvested restricted stock units, 26,053 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 34,014 of which were granted on March 8, 2023 and shall vest through March 8, 2027.

SEC source: 0001093557-24-000049 · edgardoc.xml · nonDerivative · entry 1

Dolan Matthew Vincent · CIK 0001914994 · EVP Strategy and Corporate

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,570

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 40,075 unvested restricted stock units, 21,711 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 14,512 of which were granted on March 8, 2023 and shall vest through March 8, 2026, and 3,852 of which were granted on March 8, 2022 and shall vest through March 8, 2025.

SEC source: 0001093557-24-000048 · edgardoc.xml · nonDerivative · entry 1

Brown Michael Jon · CIK 0001899922 · EVP Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,306

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 60,303 unvested restricted stock units, 21,711 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 14,512 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 24,080 of which were granted on March 8, 2022 and shall vest through March 8, 2026.

SEC source: 0001093557-24-000040 · edgardoc.xml · nonDerivative · entry 1

Sylvain Jereme M · CIK 0001681267 · EVP Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 97,195

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

F2 · balance_after: Included in this number are 52,009 unvested restricted stock units, 26,053 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 14,512 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 7,060 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 4,384 of which were granted on December 15, 2021 and shall vest through December 15, 2024.

SEC source: 0001093557-24-000039 · edgardoc.xml · nonDerivative · entry 1

Stern Sadie · CIK 0001797971 · EVP Chief Human Resources

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,762

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

F2 · balance_after: Included in this number are 53,995 unvested restricted stock units, 21,711 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 14,512 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 7,060 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 2,504 of which were granted on December 15, 2021 and shall vest through December 15, 2024, 8,208 of which were granted on November 19, 2020 and shall vest through November 19, 2024.

SEC source: 0001093557-24-000038 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 414,533

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

F2 · balance_after: Included in this number are 109,641 unvested restricted stock units, 51,692 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 36,281 of which were granted on March 9, 2023 and shall vest through March 8, 2026, 21,668 of which were granted on March 8, 2022 and shall vest through March 8, 2025.

SEC source: 0001093557-24-000037 · edgardoc.xml · nonDerivative · entry 1

Leach Jacob Steven · CIK 0001700255 · EVP Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 288,552

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

F2 · balance_after: Included in this number are 56,356 unvested restricted stock units, 26,053 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 16,931 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 8,988 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 4,384 of which were granted on December 15, 2021 and shall vest through December 15, 2024.

SEC source: 0001093557-24-000036 · edgardoc.xml · nonDerivative · entry 1

Lawver Teri L · CIK 0001960596 · EVP Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,405

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

F2 · balance_after: Included in this number are 60,067 unvested restricted stock units, 26,053 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 34,014 of which were granted on March 8, 2023 and shall vest through March 8, 2027.

SEC source: 0001093557-24-000035 · edgardoc.xml · nonDerivative · entry 1

Dolan Matthew Vincent · CIK 0001914994 · EVP Strategy and Corporate

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,280

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

F2 · balance_after: Included in this number are 40,075 unvested restricted stock units, 21,711 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 14,512 of which were granted on March 8, 2023 and shall vest through March 8, 2026, and 3,852 of which were granted on March 8, 2022 and shall vest through March 8, 2025.

SEC source: 0001093557-24-000034 · edgardoc.xml · nonDerivative · entry 1

Brown Michael Jon · CIK 0001899922 · EVP Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,105

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

F2 · balance_after: Included in this number are 60,303 unvested restricted stock units, 21,711 of which were granted on March 8, 2024 and shall vest through March 8, 2027, 14,512 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 24,080 of which were granted on March 8, 2022 and shall vest through March 8, 2026.

SEC source: 0001093557-24-000026 · edgardoc.xml · nonDerivative · entry 1

Sylvain Jereme M · CIK 0001681267 · EVP Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 71,142

F1 · shares: On November 21, 2023, Mr. Sylvain adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sylvain. The shares set forth above were sold pursuant to the 10b5-1 Plan.

F2 · balance_after: Included in this number are 48,809 unvested restricted stock units, 21,769 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 14,124 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 5,848 of which were granted on December 15, 2021 and shall vest through December 15, 2024, 7,068 of which were granted on March 8, 2021 and shall vest through March 8, 2024.

SEC source: 0001093557-24-000014 · edgardoc.xml · nonDerivative · entry 2

Stern Sadie · CIK 0001797971 · EVP Chief Human Resources

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 79,051

F3 · 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 PSUs. 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 54,953 unvested restricted stock units, 21,769 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 14,124 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 3,340 of which were granted on December 15, 2021 and shall vest through December 15, 2024, 7,512 of which were granted on March 8, 2021 and shall vest through March 8, 2024, 8,208 of which were granted on November 19, 2020 and shall vest through November 19, 2024.

SEC source: 0001093557-24-000013 · edgardoc.xml · nonDerivative · entry 2

Sylvain Jereme M · CIK 0001681267 · EVP Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 74,505

F3 · 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 PSUs. 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 48,809 unvested restricted stock units, 21,769 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 14,124 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 5,848 of which were granted on December 15, 2021 and shall vest through December 15, 2024, 7,068 of which were granted on March 8, 2021 and shall vest through March 8, 2024.

SEC source: 0001093557-24-000012 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 362,841

F3 · 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 PSUs. 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 115,682 unvested restricted stock units, 54,422 of which were granted on March 9, 2023 and shall vest through March 8, 2026, 43,336 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 17,924 of which were granted on March 8, 2021 and shall vest through March 8, 2024.

SEC source: 0001093557-24-000011 · edgardoc.xml · nonDerivative · entry 2

Leach Jacob Steven · CIK 0001700255 · EVP Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 262,499

F3 · 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 PSUs. 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 58,781 unvested restricted stock units, 25,397 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 17,976 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 5,848 of which were granted on December 15, 2021 and shall vest through December 15, 2024, 9,560 of which were granted on March 8, 2021 and shall vest through March 8, 2024.

SEC source: 0001093557-24-000010 · edgardoc.xml · nonDerivative · entry 2

ALTMAN STEVEN R · CIK 0001191307 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · by Trust

Disclosed balance after: 53,132

F1 · shares: On May 30, 2023, 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 $122.86 to $123.65 per share. 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: 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: 0001093557-24-000010 · edgardoc.xml · nonDerivative · entry 1

ALTMAN STEVEN R · CIK 0001191307 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · by Trust

Disclosed balance after: 54,240

F1 · shares: On May 30, 2023, 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 $121.44 to $122.24 per share. 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: 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: 0001093557-24-000014 · edgardoc.xml · nonDerivative · entry 1

Stern Sadie · CIK 0001797971 · EVP Chief Human Resources

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 81,953

F1 · kind: Represents performance stock units ("PSUs") granted to the reporting person on March 8, 2021 that vested on January 12, 2024.

F1 · shares: Represents performance stock units ("PSUs") granted to the reporting person on March 8, 2021 that vested on January 12, 2024.

F2 · balance_after: Included in this number are 54,953 unvested restricted stock units, 21,769 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 14,124 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 3,340 of which were granted on December 15, 2021 and shall vest through December 15, 2024, 7,512 of which were granted on March 8, 2021 and shall vest through March 8, 2024, 8,208 of which were granted on November 19, 2020 and shall vest through November 19, 2024.

SEC source: 0001093557-24-000013 · edgardoc.xml · nonDerivative · entry 1

Sylvain Jereme M · CIK 0001681267 · EVP Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 77,239

F1 · kind: Represents performance stock units ("PSUs") granted to the reporting person on March 8, 2021 that vested on January 12, 2024.

F1 · shares: Represents performance stock units ("PSUs") granted to the reporting person on March 8, 2021 that vested on January 12, 2024.

F2 · balance_after: Included in this number are 48,809 unvested restricted stock units, 21,769 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 14,124 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 5,848 of which were granted on December 15, 2021 and shall vest through December 15, 2024, 7,068 of which were granted on March 8, 2021 and shall vest through March 8, 2024.

SEC source: 0001093557-24-000012 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 400,166

F1 · kind: Represents performance stock units ("PSUs") granted to the reporting person on March 8, 2021 that vested on January 12, 2024.

F1 · shares: Represents performance stock units ("PSUs") granted to the reporting person on March 8, 2021 that vested on January 12, 2024.

F2 · balance_after: Included in this number are 115,682 unvested restricted stock units, 54,422 of which were granted on March 9, 2023 and shall vest through March 8, 2026, 43,336 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 17,924 of which were granted on March 8, 2021 and shall vest through March 8, 2024.

SEC source: 0001093557-24-000011 · edgardoc.xml · nonDerivative · entry 1

Leach Jacob Steven · CIK 0001700255 · EVP Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 266,477

F1 · kind: Represents performance stock units ("PSUs") granted to the reporting person on March 8, 2021 that vested on January 12, 2024.

F1 · shares: Represents performance stock units ("PSUs") granted to the reporting person on March 8, 2021 that vested on January 12, 2024.

F2 · balance_after: Included in this number are 58,781 unvested restricted stock units, 25,397 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 17,976 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 5,848 of which were granted on December 15, 2021 and shall vest through December 15, 2024, 9,560 of which were granted on March 8, 2021 and shall vest through March 8, 2024.

SEC source: 0001093557-23-000256 · edgardoc.xml · nonDerivative · entry 1

Flynn Paul R · CIK 0001850141 · EVP Global Revenue

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,949

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 46,260 unvested restricted stock units, 18,776 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 14,124 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 5,848 of which were granted on December 15, 2021 and shall vest through December 15, 2024, 7,512 of which were granted on March 8, 2021 and shall vest through March 8, 2024.

SEC source: 0001093557-23-000255 · edgardoc.xml · nonDerivative · entry 1

Leach Jacob Steven · CIK 0001700255 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 256,780

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 58,781 unvested restricted stock units, 25,397 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 17,976 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 5,848 of which were granted on December 15, 2021 and shall vest through December 15, 2024, 9,560 of which were granted on March 8, 2021 and shall vest through March 8, 2024.

SEC source: 0001093557-23-000254 · edgardoc.xml · nonDerivative · entry 1

Stern Sadie · CIK 0001797971 · EVP Chief Human Resources Offi

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 74,333

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 54,953 unvested restricted stock units, 21,769 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 14,124 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 3,340 of which were granted on December 15, 2021 and shall vest through December 15, 2024, 7,512 of which were granted on March 8, 2021 and shall vest through March 8, 2024, 8,208 of which were granted on November 19, 2020 and shall vest through November 19, 2024.

SEC source: 0001093557-23-000253 · edgardoc.xml · nonDerivative · entry 1

Sylvain Jereme M · CIK 0001681267 · EVP Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,068

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 48,809 unvested restricted stock units, 21,769 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 14,124 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 5,848 of which were granted on December 15, 2021 and shall vest through December 15, 2024, 7,068 of which were granted on March 8, 2021 and shall vest through March 8, 2024.

SEC source: 0001093557-23-000252 · edgardoc.xml · nonDerivative · entry 1

Regan Barry J. · CIK 0001746313 · EVP Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,469

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 50,680 unvested restricted stock units, 18,776 of which were granted on March 8, 2023 and shall vest through March 8, 2026, 13,288 of which were granted on March 8, 2022 and shall vest through March 8, 2025, 3,340 of which were granted on December 15, 2021 and shall vest through December 15, 2024, 7,068 of which were granted on March 8, 2021 and shall vest through March 8, 2024, 8,208 of which were granted on November 19, 2020 and shall vest through November 19, 2024.

SEC source: 0001093557-23-000246 · edgardoc.xml · nonDerivative · entry 1

AUGUSTINOS NICHOLAS · CIK 0001238485 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · by Trust

Disclosed balance after: 34,040

F1 · shares: On September 15, 2023, Mr. Augustinos adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Augustinos. The sale of shares set forth above were pursuant to the 10b5-1 Plan.

F2 · balance_after: Shares are held by the Kirschner/Augustinos Revocable Trust, of which the reporting person is trustee.