Dexcom Inc. planned insider sales
In the twelve months since 23 September 2025 insiders at Dexcom Inc. filed 26 Form 144 notices of planned sales, 161,944 shares worth $12.4 million at the time of filing, from 9 sellers. The latest, filed 15 September 2026: Michael Brown (officer), 1,700 shares worth $142,868, planned for around 15 September 2026 through Morgan Stanley Smith Barney LLC Executive Financial Services.
| Filed | Seller | Relationship | Shares | Value | Planned sale | Broker | How acquired | Filing |
|---|---|---|---|---|---|---|---|---|
| 15 September 2026 | Michael Brown | Officer | 1,700 | $142,868 | 15 September 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | Restricted Stock | Form 144 |
| 15 September 2026 | Augustinos Nicholas | Director | 6,539 | $549,538 | 15 September 2026 | Fidelity Brokerage Services LLC | Vested RSU Grant | Form 144 |
| 14 September 2026 | Augustinos Nicholas | Director | 1,550 | $130,231 | 14 September 2026 | Fidelity Brokerage Services LLC | Vested RSU Grant | Form 144 |
| 10 September 2026 | Jereme Sylvain | Officer | 3,638 | $302,936 | 10 September 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | Restricted Stock | Form 144 |
| 27 August 2026 | Sadie Stern | Officer | 2,565 | $226,669 | 27 August 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | Restricted Stock | Form 144 |
| 20 August 2026 | Kevin R Sayer | Officer, Director | 26,756 | $2.4 million | 20 August 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | Restricted Stock | Form 144 |
| 14 August 2026 | Michael Brown | Officer | 1,700 | $156,281 | 14 August 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | Restricted Stock | Form 144 |
| 12 August 2026 | Heller Bridgette P | Director | 1,012 | $89,349 | 12 August 2026 | Fidelity Brokerage Services LLC | Restricted Stock Vesting | Form 144 |
| 3 August 2026 | Foletta Mark G | Director | 2,000 | $170,640 | 3 August 2026 | UBS Financial Services, Inc. | Vested RSUs | Form 144 |
| 31 July 2026 | Foletta Mark G | Director | 2,000 | $160,000 | 31 July 2026 | UBS Financial Services, Inc. | Vested RSUs | Form 144 |
| 20 July 2026 | Kevin R Sayer | Officer, Director | 26,756 | $2.0 million | 20 July 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | Performance and Restricted Stock | Form 144 |
| 15 July 2026 | Michael Brown | Officer | 1,700 | $126,514 | 15 July 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | Restricted Stock | Form 144 |
| 6 July 2026 | Kevin R Sayer | Officer, Director | 26,756 | $1.9 million | 6 July 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | Performance and Restricted Stock | Form 144 |
| 15 June 2026 | Michael Brown | Officer | 1,700 | $128,435 | 15 June 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | Restricted Stock | Form 144 |
| 15 June 2026 | Foletta Mark G | Director | 4,000 | $302,800 | 15 June 2026 | UBS Financial Services, Inc. | Vested RSUs | Form 144 |
| 4 June 2026 | Jon C Coleman | Officer | 4,911 | $364,052 | 4 June 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | Restricted Stock | Form 144 |
| 3 June 2026 | Jon C Coleman | Officer | 4,912 | $358,576 | 3 June 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | Restricted Stock | Form 144 |
| 21 May 2026 | Kevin R Sayer | Officer, Director | 26,759 | $1.9 million | 21 May 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | Performance Shares | Form 144 |
| 15 May 2026 | Michael Brown | Officer | 1,700 | $101,847 | 15 May 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | Restricted Stock | Form 144 |
| 12 May 2026 | Heller Bridgette P | Director | 1,012 | $60,730 | 12 May 2026 | Fidelity Brokerage Services LLC | Restricted Stock Vesting | Form 144 |
| 15 April 2026 | Michael Brown | Officer | 1,700 | $107,168 | 15 April 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | Restricted Stock | Form 144 |
| 16 March 2026 | Michael Brown | Officer | 1,700 | $110,245 | 16 March 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | Restricted Stock | Form 144 |
| 12 February 2026 | Heller Bridgette P | Director | 1,012 | $68,826 | 12 February 2026 | Fidelity Brokerage Services LLC | Restricted Stock Vesting | Form 144 |
| 14 November 2025 | Collins Richard Alexander | Director | 2,906 | $171,599 | 14 November 2025 | Fidelity Brokerage Services LLC | Restricted Stock Vesting | Form 144 |
| 12 November 2025 | Heller Bridgette P | Director | 1,012 | $58,767 | 12 November 2025 | Fidelity Brokerage Services LLC | Restricted Stock Vesting | Form 144 |
| 10 November 2025 | Collins Richard Alexander | Director | 3,948 | $217,811 | 10 November 2025 | Fidelity Brokerage Services LLC | Restricted Stock Vesting | Form 144 |
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was. Value is the filer's own aggregate market value. Whether the sale happened shows up later on Form 4, on the insiders page.
Source
Form 144 filings on EDGAR for Dexcom Inc.: the company's filing index, each notice read from its own XML.
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