| Id | Content |
|---|---|
| F1 | Shares were transferred from direct ownership to ownership under the WILLIAM L DAHUT, JR TRUST & KAREN M DAHUT TRUST Dated 6/14/2005, upon vesting of previously awarded restricted stock units. |
| F2 | 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. |
| F3 | Included in this number are 4,450 unvested restricted stock units, 2,906 of which were granted on May 18, 2023 and shall vest on the earlier of the one year anniversary of the grant or the date of DexCom Inc's 2024 Annual Meeting and 1,544 of which were granted on August 11, 2020 and shall vest through August 11, 2023. |
| F4 | Shares are held by the WILLIAM L DAHUT, JR TRUST & KAREN M DAHUT TRUST Dated 6/14/2005, with respect to which the reporting person is a trustee. |