DexCom Inc (DXCM)
Who owns DexCom Inc (DXCM)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 99.6% of the shares are freely tradable; institutional investors hold 102.5%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard Group Inc | 12.72 | 49,074,378 | -0.8 | 12/31/2025 |
| BlackRock Inc | 10.10 | 38,964,371 | -2.2 | 03/31/2026 |
| Vanguard Capital Management, LLC | 6.48 | 25,020,961 | +0.0 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 4.98 | 19,219,953 | +0.0 | 03/31/2026 |
| State Street Corp | 4.65 | 17,934,847 | -0.9 | 03/31/2026 |
| Baillie Gifford & Co Limited. | 4.04 | 15,599,525 | +0.3 | 03/31/2026 |
| AllianceBernstein L.P. | 3.35 | 12,923,644 | +49.9 | 03/31/2026 |
| Geode Capital Management, LLC | 3.20 | 12,346,638 | +12.2 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 3.18 | 12,255,504 | +0.2 | 04/30/2026 |
| Vanguard 500 Index Investor | 2.59 | 9,978,595 | +1.8 | 04/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 20. Jul 2026 | Sayer Kevin R | Executive Chair | Sell | 26,756 | 76.32 | 2,041,999 |
| 15. Jul 2026 | Brown Michael Jon | EVP Chief Legal Compliance Off | Sell | 1,700 | 74.42 | 126,514 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character.
View all insider transactions →Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.