This cluster is too small relative to market cap to warrant a trading signal. Monitor for any material corporate events (earnings, product announcements, regulatory decisions) that could explain the sales, but the dollar amounts are consistent with routine portfolio diversification or tax planning.
Price Chart
Executive Summary
Two DexCom insiders, including Executive Chair Kevin Sayer, sold a combined $2.17M in open-market sales over a 7-day window. The total value is only ~0.007% of DexCom's $29.2B market cap, making this a trivial cluster by proportionality standards. Insider sales are weak predictors on average, and this cluster does not carry material informational content.
Key Financial Metrics
Key Facts
- Executive Chair Kevin Sayer sold 26,756 shares for $2.04M on 2026-07-20
- EVP & Chief Legal & Compliance Officer Michael Brown sold 1,700 shares for $127K on 2026-07-15
- Total cluster value of $2.17M is only ~0.007% of DexCom's $29.2B market cap
- Both sales were open-market transactions (code S)
- No insider buying activity in the cluster window
Financial Impact
$2.17M in total insider sales, representing ~0.007% of market cap
Risk Factors
- Insider sales are weak predictors of future returns, especially at this trivial scale
- No contextual filings (earnings, M&A, regulatory) were provided to explain the sales
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-DXCM-1784667690960 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 14, 2026 17d ago | 8-K | $86.45 $89.53 | ▲ +3.56% | ▲ +1.44% | $85.68 (−0.90%) |
Aug 28, 2026 4w ago | Insider Cluster | $91.06 $84.53 | ▼ −7.17% | ▼ −7.03% | $85.68 (−5.91%) |
Aug 24, 2026 5w ago | Insider Cluster | $91.06 $91.06 | · 0.00% | ▼ −0.47% | $85.68 (−5.91%) |
Aug 17, 2026 6w ago | Insider Cluster | $88.76 $91.06 | ▲ +2.59% | ▲ +3.78% | $85.68 (−3.47%) |
Jul 21, 2026 10w ago | Insider Cluster | $71.43 $75.14 | ▲ +5.19% | ▲ +7.60% | $85.68 (+19.94%) |
Jun 17, 2026 15w ago | Insider Cluster | $72.47 $68.65 | ▼ −5.27% | ▼ −3.61% | $85.68 (+18.22%) |
May 26, 2026 18w ago | Insider Cluster | $70.17 $73.45 | ▲ +4.67% | ▲ +3.46% | $85.68 (+22.09%) |
May 26, 2026 18w ago | Insider Cluster | $70.17 $72.70 | ▲ +3.61% | ▲ +3.14% | $85.68 (+22.09%) |
May 19, 2026 19w ago | Insider Cluster | $71.24 $72.27 | ▲ +1.45% | ▼ −0.36% | $85.68 (+20.26%) |
Apr 15, 2026 24w ago | DEFA14A | $61.01 $62.68 | ▲ +2.74% | ▲ +1.75% | $85.68 (+40.42%) |
US Market Status
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