Collins Richard Alexander

SEC source: 0001093557-26-000117 · wk-form4_1780349662.xml · nonDerivative · entry 1

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,605

F1 · shares: The RSU Award was granted on May 28, 2026 and 100% of the RSU Award will vest on the earlier of the one year anniversary of the grant date or the date of DexCom, Inc.'s 2027 Annual Meeting of Stockholders. 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.

SEC source: 0001093557-26-000080 · wk-form4_1778541192.xml · nonDerivative · entry 2

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · by Trust

Disclosed balance after: 40,162

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.

F2 · ownership.nature: Shares are held by the Richard A. Collins Revocable Trust, with respect to which the reporting person is a trustee.

SEC source: 0001093557-26-000080 · wk-form4_1778541192.xml · nonDerivative · entry 1

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: No plan indicated

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: 0001093557-25-000288 · wk-form4_1763419953.xml · nonDerivative · entry 1

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · by Trust

Disclosed balance after: 35,088

F1 · shares: On August 7, 2025, the Richard A. Collins Revocable Trust (the "Trust") adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by the Trust. The shares set forth above were sold pursuant to the 10b5-1 Plan.

F2 · ownership.nature: Shares are held by the Richard A. Collins Revocable Trust, with respect to which the reporting person is a trustee.

SEC source: 0001093557-25-000283 · wk-form4_1762819958.xml · nonDerivative · entry 1

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · by Trust

Disclosed balance after: 37,994

F1 · shares: On August 7, 2025, the Richard A. Collins Revocable Trust (the "Trust") adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by the Trust. The shares set forth above were sold pursuant to the 10b5-1 Plan.

F2 · ownership.nature: Shares are held by the Richard A. Collins Revocable Trust, with respect to which the reporting person is a trustee.

SEC source: 0001093557-25-000148 · wk-form4_1747080459.xml · nonDerivative · entry 3

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,074

F3 · shares: The RSU Award was granted on May 8, 2025 and 100% of the RSU Award will vest on the earlier of the one year anniversary of the grant date or the date of DexCom, Inc.'s 2026 Annual Meeting of Stockholders. 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.

SEC source: 0001093557-25-000148 · wk-form4_1747080459.xml · nonDerivative · entry 2

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · by Trust

Disclosed balance after: 41,942

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.

F2 · ownership.nature: Shares are held by the Richard A. Collins Revocable Trust, with respect to which the reporting person is a trustee.

SEC source: 0001093557-25-000148 · wk-form4_1747080459.xml · nonDerivative · entry 1

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: No plan indicated

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: 0001093557-24-000113 · edgardoc.xml · nonDerivative · entry 1

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,632

F1 · shares: The RSU Award was granted on May 22, 2024 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 2025 Annual Meeting of Stockholders. 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.

SEC source: 0001093557-24-000093 · edgardoc.xml · nonDerivative · entry 2

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · by Trust

Disclosed balance after: 39,310

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.

F2 · balance_after: Shares are held by the Richard A. Collins Revocable Trust, with respect to which the reporting person is a trustee.

SEC source: 0001093557-24-000093 · edgardoc.xml · nonDerivative · entry 1

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: No plan indicated

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: 0001093557-23-000140 · edgardoc.xml · nonDerivative · entry 3

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · by Trust

Disclosed balance after: 36,404

F2 · shares: Shares were transferred from direct ownership to ownership under the Richard A. Collins Revocable Trust upon vesting of previously awarded restricted stock units.

F3 · balance_after: Shares are held by the Richard A. Collins Revocable Trust, with respect to which the reporting person is a trustee.

SEC source: 0001093557-23-000140 · edgardoc.xml · nonDerivative · entry 2

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,906

F2 · 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: 0001093557-23-000140 · edgardoc.xml · nonDerivative · entry 1

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,854

F1 · shares: The RSU Award was granted on May 18, 2023 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 2024 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.

SEC source: 0001093557-22-000115 · edgardoc.xml · nonDerivative · entry 2

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 987

F2 · shares: The RSU Award was granted on May 20, 2022 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 2023 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 987 restricted stock units which were granted on May 20, 2022 and will vest on the earlier of the one year anniversary of the grant date or the date of DexCom Inc's 2023 Annual Meeting.

SEC source: 0001093557-22-000115 · edgardoc.xml · nonDerivative · entry 3

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 8,114

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.

SEC source: 0001093557-22-000115 · 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: 0001093557-21-000266 · edgardoc.xml · nonDerivative · entry 1

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 7,204

F1 · date: This Form 4 is being filed late due to an inadvertent administrative oversight and not any error of the reporting person.

F2 · ownership.nature: Shares are held by the Richard A. Collins Revocable Trust, with respect to which the reporting person is a trustee.

SEC source: 0001093557-21-000136 · edgardoc.xml · nonDerivative · entry 2

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 910

F2 · shares: The RSU Award was granted on May 21, 2021 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 2022 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 910 restricted stock units which were granted on May 21, 2021 and will vest on the earlier of the one year anniversary of the grant date or the date of DexCom Inc's 2022 Annual Meeting.

SEC source: 0001093557-21-000136 · edgardoc.xml · nonDerivative · entry 3

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 8,704

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: 0001093557-21-000136 · 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: 0001093557-20-000166 · 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: 0001093557-20-000166 · 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: 0001093557-20-000035 · edgardoc.xml · nonDerivative · entry 1

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 5,304

F1 · shares: On November 15, 2019, Mr. Collins adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Collins. The shares set forth above were sold pursuant to the 10b5-1 Plan.

F2 · balance_after: Reflects 500 shares inadvertently reported under Direct Ownership.

F3 · ownership.nature: Shares are held by the Richard A. Collins Revocable Trust, with respect to which the reporting person is a trustee.

SEC source: 0001093557-19-000152 · wf-form4_155969288108911.xml · nonDerivative · entry 2

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,113

F2 · shares: The RSU Award was granted on May 31, 2019 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 2020 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 2,613 restricted stock units which were granted on May 31, 2019 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: 0001093557-19-000152 · wf-form4_155969288108911.xml · nonDerivative · entry 3

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 8,804

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: 0001093557-19-000152 · wf-form4_155969288108911.xml · nonDerivative · entry 1

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 500

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: 0001093557-18-000136 · edgardoc.xml · nonDerivative · entry 1

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,304

F1 · shares: The RSU Award was granted on June 1, 2018 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 2019 Annual Meeting. Each share is represented by a restricted stock unit (RSU) that represents a contingent right to receive one share of DexCom, Inc. commom stock upon settlement.

F2 · balance_after: Included in this number are 3,449 restricted stock units which were granted on June 1, 2018 and will vest on the earlier of the one year anniversary of the grant date or the date of DexCom Inc's 2019 Annual Meeting.

SEC source: 0001093557-19-000028 · edgardoc.xml · nonDerivative · entry 2

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 5,355

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: 0001093557-19-000028 · edgardoc.xml · nonDerivative · entry 1

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,949

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: 0001093557-18-000117 · edgardoc.xml · nonDerivative · entry 1

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,312

F1 · security: Each share is represented by a restricted stock unit (RSU) that represents a contingent right to receive one share of DexCom, Inc. commom stock upon settlement.

F2 · shares: The RSU Award was granted on May 31, 2018 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 2019 Annual Meeting.

F3 · balance_after: Included in this number are 8,812 restricted stock units, 5,355 of which were granted on June 1, 2017 and shall vest on June 1, 2018 and 3,457 of which were granted on May 31, 2018 and will vest on the earlier of the one year anniversary of the grant date or the date of DexCom Inc's 2019 Annual Meeting.

SEC source: 0001093557-17-000145 · edgardoc.xml · nonDerivative · entry 2

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,855

F1 · shares: Share units are restricted and subject to vesting in one annual installment from the date of grant. Share units represent a contingent right to receive one share of DexCom, Inc. common stock.

F2 · balance_after: Included in this number are 5,355 unvested restricted stock units which were granted on June 1, 2017 and shall vest on June 1, 2018.

SEC source: 0001093557-17-000145 · edgardoc.xml · nonDerivative · entry 1

Collins Richard Alexander · CIK 0001700619 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,502

F1 · shares: Share units are restricted and subject to vesting in one annual installment from the date of grant. Share units represent a contingent right to receive one share of DexCom, Inc. common stock.

F2 · balance_after: Included in this number are 5,355 unvested restricted stock units which were granted on June 1, 2017 and shall vest on June 1, 2018.