| 2021-04-05 | SAYER KEVIN R | Chairman, CEO & President | Sell | 6,221 | $366.67 | $2,281,081.89 | -1.8% | → |
| 2021-03-26 | Murphy Patrick Michael | EVP, Chief Legal Officer | Sell | 500 | $350.00 | $175,000.00 | -2.5% | → |
| 2021-03-23 | Pacelli Steven Robert | Managing Dir., Dexcom Ventures | Sell | 1,079 | $360.49 | $388,967.44 | -0.4% | → |
| 2021-03-23 | DOUBLEDAY RICHARD | EVP Chief Commercial Officer | Sell | 1,109 | $360.49 | $399,788.12 | -3.0% | → |
| 2021-03-11 | Selvaraj Shelly Ramasamy | SVP Information Technology | Sell | 4,567 | $360.03 | $1,644,266.52 | -11.8% | → |
| 2021-03-10 | Sylvain Jereme M | SVP, Finance & CAO | Sell | 941 | $362.92 | $341,504.90 | -5.9% | → |
| 2021-03-10 | SAYER KEVIN R | Chairman, CEO & President | Sell | 14,044 | $362.92 | $5,096,806.35 | -10.7% | → |
| 2021-03-10 | Abbey Donald | EVP Quality and Regulatory Aff | Sell | 5,566 | $362.92 | $2,019,996.02 | -10.0% | → |
| 2021-03-10 | Murphy Patrick Michael | EVP, Chief Legal Officer | Sell | 3,471 | $362.92 | $1,259,684.91 | -14.6% | → |
| 2021-03-10 | Pacelli Steven Robert | EVP Strategy and Corporate Dev | Sell | 5,566 | $362.92 | $2,019,996.02 | -9.1% | → |
| 2021-03-10 | Balo Andrew K | * | Sell | 5,566 | $362.92 | $2,019,996.02 | -13.6% | → |
| 2021-03-10 | Blackford Quentin S. | Chief Operating Officer & CFO | Sell | 6,509 | $362.22 | $2,357,688.03 | -12.6% | → |
| 2021-03-10 | Leach Jacob Steven | EVP Chief Technology Officer | Sell | 5,353 | $362.92 | $1,942,694.70 | -4.8% | → |
| 2021-03-09 | SAYER KEVIN R | Chairman, CEO & President | Sell | 3,857 | $361.11 | $1,392,796.00 | -0.4% | → |
| 2021-03-09 | Selvaraj Shelly Ramasamy | SVP Information Technology | Sell | 152 | $356.94 | $54,254.88 | -0.7% | → |
| 2021-02-26 | Murphy Patrick Michael | EVP, Chief Legal Officer | Sell | 500 | $396.79 | $198,395.00 | -2.7% | → |
| 2021-02-24 | Sylvain Jereme M | SVP, Finance & CAO | Sell | 600 | $404.00 | $242,400.00 | -5.3% | → |
| 2021-02-24 | DOUBLEDAY RICHARD | EVP Chief Commercial Officer | Sell | 1,110 | $404.00 | $448,440.00 | -12.5% | → |
| 2021-02-23 | Pacelli Steven Robert | EVP Strategy and Corporate Dev | Sell | 1,079 | $406.98 | $439,131.42 | -1.9% | → |
| 2021-02-19 | Pacelli Steven Robert | EVP Strategy and Corporate Dev | Sell | 1,800 | $420.01 | $756,025.02 | -3.1% | → |
| 2021-02-16 | AUGUSTINOS NICHOLAS | Director | Sell | 1,875 | $412.03 | $772,556.25 | -15.7% | → |
| 2021-02-01 | SAYER KEVIN R | Chairman, CEO & President | Sell | 12,468 | $378.17 | $4,714,964.61 | -1.3% | → |
| 2021-01-27 | Murphy Patrick Michael | EVP, Chief Legal Officer | Sell | 500 | $359.70 | $179,850.00 | -2.6% | → |
| 2021-01-22 | DOUBLEDAY RICHARD | EVP Chief Commercial Officer | Sell | 366 | $367.51 | $134,509.83 | -3.7% | → |
| 2021-01-22 | Pacelli Steven Robert | EVP Strategy and Corporate Dev | Sell | 701 | $369.55 | $259,057.50 | -0.4% | → |