Over the last 12 months, Dexcom insiders reported 1 buy totaling $1.0M and 19 sales totaling $11.1M across SEC Form 4 filings. 95% of those filings were made under pre-arranged 10b5-1 trading plans.
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Aug 27, 2026 | Stern SadieEVP Chief People & Culture Off · O | ▼ Sale | 2,565 | $88.37 | $227K | -2% | plan |
| Aug 20, 2026 | SAYER KEVIN RExecutive Chair · O·D | ▼ Sale | 26,756 | $90.01 | $2.4M | -8.1% | plan · 3 tranches |
| Aug 14, 2026 | Brown Michael JonEVP Chief Legal Compliance Off · O | ▼ Sale | 1,700 | $91.93 | $156K | -1.6% | plan |
| Aug 12, 2026 | Heller Bridgette PD | ▼ Sale | 1,012 | $88.29 | $89K | -3.3% | plan |
| Aug 3, 2026 | FOLETTA MARK GD | ▼ Sale | 4,000 | $82.66 | $331K | -7.6% | plan · 2 tranches · indirect |
| Jul 20, 2026 | SAYER KEVIN RExecutive Chair · O·D | ▼ Sale | 26,756 | $76.32 | $2.0M | -7.5% | plan |
| Jul 15, 2026 | Brown Michael JonEVP Chief Legal Compliance Off · O | ▼ Sale | 1,700 | $74.42 | $127K | -1.6% | plan |
| Jul 6, 2026 | SAYER KEVIN RExecutive Chair · O·D | ▼ Sale | 26,756 | $72 | $1.9M | -7% | plan |
| Jun 15, 2026 | Brown Michael JonEVP Chief Legal Compliance Off · O | ▼ Sale | 1,700 | $75.55 | $128K | -1.6% | plan |
| Jun 15, 2026 | FOLETTA MARK GD | ▼ Sale | 4,000 | $74.13 | $297K | -7% | plan · 2 tranches · indirect |
| Jun 4, 2026 | Coleman JonEVP, Chief Commercial Officer · O | ▼ Sale | 4,911 | $74.13 | $364K | -4.9% | plan |
| Jun 3, 2026 | Coleman JonEVP, Chief Commercial Officer · O | ▼ Sale | 4,912 | $73 | $359K | -4.7% | plan |
| May 21, 2026 | SAYER KEVIN RExecutive Chair · O·D | ▼ Sale | 26,759 | $72 | $1.9M | -6.5% | plan |
| Apr 15, 2026 | Brown Michael JonEVP, Chief Legal Officer · O | ▼ Sale | 1,700 | $63.04 | $107K | -1.5% | plan |
| Mar 16, 2026 | Brown Michael JonEVP, Chief Legal Officer · O | ▼ Sale | 1,700 | $64.85 | $110K | -1.5% | plan |
| Feb 12, 2026 | Heller Bridgette PD | ▼ Sale | 1,012 | $68.01 | $69K | -3.7% | plan |
| Nov 14, 2025 | Collins Richard AlexanderD | ▼ Sale | 2,906 | $59.05 | $172K | -7.6% | plan · indirect |
| Nov 12, 2025 | Heller Bridgette PD | ▼ Sale | 1,012 | $58.07 | $59K | -3.6% | plan |
| Nov 10, 2025 | Leach Jacob StevenPresident & COO · O | ▲ Buy | 18,200 | $55.04 | $1.0M | +5.8% | 2 tranches |
| Nov 10, 2025 | Collins Richard AlexanderD | ▼ Sale | 3,948 | $55.17 | $218K | -9.4% | plan · indirect |
| Sep 5, 2025 | Malady KyleD | ▼ Sale | 667 | $80.86 | $54K | -2.9% | plan |
| Sep 4, 2025 | Stern SadieEVP, Chief HR Officer · O | ▼ Sale | 1,466 | $80 | $117K | -1.4% | plan |
| Sep 2, 2025 | Sylvain Jereme MEVP, Chief Financal Officer · O | ▼ Sale | 4,824 | $74.17 | $358K | -3.9% | plan |
| Aug 15, 2025 | Brown Michael JonEVP, Chief Legal Officer · O | ▼ Sale | 500 | $80.29 | $40K | -0.5% | plan |
| Aug 15, 2025 | FOLETTA MARK GD | ▼ Sale | 2,750 | $81.06 | $223K | -5.1% | plan · 2 tranches · indirect |
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Dexcom filings can reach your inbox instead.
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $DXCM feed.