Company profile
Dexcom Inc Insider Trading
DXCMEvery SEC Form 4 insider trading filing for Dexcom Inc (DXCM) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Surgical & Medical Instruments & Apparatus
- CIK
- 0001093557
- Filings
- 215
- Insiders
- 27
- Last filing
- 2026-08-14
Activity summary
No discretionary insider buying or selling in the last 30 days. Of the 5 transactions filed, 4 were scheduled under a 10b5-1 plan and 1 was grants, option exercises or other non-open-market activity.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Dexcom Inc insiders are net sellers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $27.7M.
90 day insight
Over the last 90 days, Dexcom Inc insiders bought $0 across 10 transactions with no open-market sales.
- Most active insider: Foletta Mark G with 5 transactions totaling $627K.
- Largest single sale: $2.0M by Sayer Kevin R on Jul 20, 2026.
- 100% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.
Activity skews bullish — buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 14, 2026 | Brown Michael Jon | DXCM | Sale10b5 | 1,700 | $91.93 | $156K |
| Aug 12, 2026 | Augustinos Nicholas | DXCM | Gift | 1,075 | — | — |
| Aug 12, 2026 | Heller Bridgette P | DXCM | Sale10b5 | 1,012 | $88.29 | $89K |
| Aug 3, 2026 | Foletta Mark G | DXCM | Sale10b5 | 2,000 | $85.32 | $171K |
| Jul 31, 2026 | Foletta Mark G | DXCM | Sale10b5 | 2,000 | $80.00 | $160K |
45 more transactions hidden
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-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of Dexcom Inc as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →