This cluster is routine and non-informative. Sayer's single sale at ~0.007% of market cap is too small to signal anything. The tax-withholding transactions are mechanical vesting events. No actionable trading signal — ignore.
Price Chart
Executive Summary
Executive Chair Kevin Sayer sold $1.93M worth of DXCM shares in an open-market sale on May 21, while multiple C-suite executives surrendered shares for tax withholding on May 22. The cluster is dominated by Sayer's sale, representing ~0.007% of market cap — a trivial amount. The tax-withholding transactions are non-cash events with no economic signal. Historical calibration on DXCM reports shows poor T+20 performance (avg -9.93%, 0% win rate), and the score-6/7/8 cells have observed up-move probabilities below 33%, suggesting caution against over-scoring.
Key Financial Metrics
Key Facts
- Executive Chair Kevin Sayer sold 26,759 shares at $72.00 for $1.93M on May 21
- Five C-suite executives (CEO, CFO, CCO, Chief Legal, Chief People) surrendered shares for tax withholding on May 22 — total $946K, all non-cash events
- Total cluster value of $2.03M represents ~0.007% of DXCM's $27.8B market cap — trivial
- Sayer's sale is a single open-market transaction; no pattern of clustered selling by multiple insiders
- Historical calibration: past DXCM reports averaged -9.93% T+20 with 0% win rate; score-6/7 cells show <33% up-move probability
Financial Impact
Sayer's sale of $1.93M is 0.007% of market cap — immaterial. Tax-withholding transactions total $946K with zero economic value.
Risk Factors
- None from this filing — cluster is trivial in size and dominated by non-cash tax events
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-1779914392668 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 14, 2026 17d ago | 8-K | $86.45 $89.53 | ▲ +3.56% | ▲ +1.44% | $85.36 (−1.26%) |
Aug 28, 2026 4w ago | Insider Cluster | $91.06 $84.53 | ▼ −7.17% | ▼ −7.03% | $85.36 (−6.26%) |
Aug 24, 2026 5w ago | Insider Cluster | $91.06 $91.06 | · 0.00% | ▼ −0.47% | $85.36 (−6.26%) |
Aug 17, 2026 6w ago | Insider Cluster | $88.76 $91.06 | ▲ +2.59% | ▲ +3.78% | $85.36 (−3.83%) |
Jul 21, 2026 10w ago | Insider Cluster | $71.43 $75.14 | ▲ +5.19% | ▲ +7.60% | $85.36 (+19.50%) |
Jun 17, 2026 15w ago | Insider Cluster | $72.47 $68.65 | ▼ −5.27% | ▼ −3.61% | $85.36 (+17.79%) |
May 26, 2026 18w ago | Insider Cluster | $70.17 $73.45 | ▲ +4.67% | ▲ +3.46% | $85.36 (+21.64%) |
May 26, 2026 18w ago | Insider Cluster | $70.17 $72.70 | ▲ +3.61% | ▲ +3.14% | $85.36 (+21.64%) |
May 19, 2026 19w ago | Insider Cluster | $71.24 $72.27 | ▲ +1.45% | ▼ −0.36% | $85.36 (+19.82%) |
Apr 15, 2026 24w ago | DEFA14A | $61.01 $62.68 | ▲ +2.74% | ▲ +1.75% | $85.36 (+39.90%) |
US Market Status
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