DexCom Inc (DXCM) insider trading
Every open-market stock purchase and sale by DexCom Inc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Healthcare.
Insider activity at a glance
- Kevin R Sayer (Chair) and 6 others sold $4.7M in the last 90 days.
- Last insider buy: Jacob Steven Leach (COO), $863K, 11 months ago.
- Congress: Tina Smith sold $100K to $250K, 6 months ago.
Last 12 months: insiders bought $1M (1 buy) and sold $12.8M (25 sales). Last close $80.26 on Oct 21, 2026.
Recent DXCM insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Oct 15, 2026 | Michael Jon Brown (VP) | Sold | $145K |
| Sep 28, 2026 | Sadie Stern (VP) | Sold | $221K |
| Sep 15, 2026 | Nicholas Augustinos (Director) | Sold | $550K |
| Sep 15, 2026 | Michael Jon Brown (VP) | Sold | $143K |
| Sep 14, 2026 | Nicholas Augustinos (Director) | Sold | $130K |
| Sep 10, 2026 | Jereme M Sylvain (C-suite exec) | Sold | $303K |
| Sep 10, 2026 | Glenn S Boehnlein (Director) | Bought (not open market) | — |
| Aug 27, 2026 | Sadie Stern (VP) | Sold | $227K |
| Aug 22, 2026 | Jacob Steven Leach (CEO) | Sold (not open market) | $134K |
| Aug 22, 2026 | Jereme M Sylvain (C-suite exec) | Sold (not open market) | $134K |
| Aug 22, 2026 | Michael Jon Brown (VP) | Sold (not open market) | $134K |
| Aug 22, 2026 | Sadie Stern (VP) | Sold (not open market) | $134K |
| Aug 20, 2026 | Kevin R Sayer (Chair) | Sold | $1.7M |
| Aug 20, 2026 | Kevin R Sayer (Chair) | Sold | $667K |
| Aug 20, 2026 | Kevin R Sayer (Chair) | Sold | $8.9K |
| Aug 14, 2026 | Michael Jon Brown (VP) | Sold | $156K |
| Aug 12, 2026 | Bridgette P Heller (Director) | Sold | $89.3K |
| Aug 12, 2026 | Nicholas Augustinos (Director) | Sold (not open market) | — |
| Aug 3, 2026 | Mark G Foletta (Director) | Sold | $171K |
| Jul 31, 2026 | Mark G Foletta (Director) | Sold | $160K |
| Jul 20, 2026 | Kevin R Sayer (Chair) | Sold | $2M |
| Jul 15, 2026 | Michael Jon Brown (VP) | Sold | $127K |
| Jul 6, 2026 | Kevin R Sayer (Chair) | Sold | $1.9M |
| Jun 15, 2026 | Mark G Foletta (Director) | Sold | $282K |
| Jun 15, 2026 | Michael Jon Brown (VP) | Sold | $128K |
Who's trading DXCM
- Michael Jon Brown, C-suite exec: sold $1M (8 sales), last Oct 15, 2026
- Sadie Stern, C-suite exec: sold $448K (2 sales), last Sep 28, 2026
- Nicholas Augustinos, Director: sold $680K (2 sales), last Sep 15, 2026
- Jereme M Sylvain, C-suite exec: sold $303K (1 sale), last Sep 10, 2026
- Glenn S Boehnlein, Director: other filings, last Sep 10, 2026
- Jacob Steven Leach, COO: bought $1M (2 buys), last Aug 22, 2026
- Kevin R Sayer, Chair: sold $8.3M (6 sales), last Aug 20, 2026
- Bridgette P Heller, Director: sold $278K (4 sales), last Aug 12, 2026
- Mark G Foletta, Director: sold $627K (4 sales), last Aug 3, 2026
- Jon Coleman, C-suite exec: sold $723K (2 sales), last Jun 4, 2026
- Renee D Gala, Director: other filings, last May 28, 2026
- Albert Frederick Osterloh IV, Director: other filings, last May 28, 2026
- Richard Alexander Collins, Director: sold $389K (2 sales), last May 28, 2026
- Kyle Malady, Director: other filings, last May 28, 2026
- Steven R Altman, Director: other filings, last May 28, 2026
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