DXCM insider trading — Dexcom Inc
No open-market insider purchases or sales were filed for Dexcom Inc (DXCM) in the last 90 days. Other insider transactions — such as stock awards, option exercises or tax withholding — are listed below.
Updated Oct 16, 2026.
Recent DXCM insider transactions
Every Form 4 filed by Dexcom Inc officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Sep 28, 2026 | Stern Sadie | EVP Chief People & Culture Off | S · Sale · 10b5-1 | Direct | 2,565 | $86.15 | $221K | Form 4 |
| Sep 15, 2026 | Augustinos Nicholas | Director | S · Sale · 10b5-1 | Indirect | 6,539 | $84.04 | $550K | Form 4 |
| Sep 14, 2026 | Augustinos Nicholas | Director | S · Sale · 10b5-1 | Indirect | 1,550 | $84.02 | $130K | Form 4 |
| Sep 15, 2026 | Brown Michael Jon | EVP Chief Legal Compliance Off | S · Sale · 10b5-1 | Direct | 1,700 | $84.04 | $143K | Form 4 |
| Sep 10, 2026 | Sylvain Jereme M | EVP, Chief Financal Officer | S · Sale · 10b5-1 | Direct | 3,638 | $83.27 | $303K | Form 4 |
| Sep 10, 2026 | Boehnlein Glenn S | Director | A · Grant/award | Direct | 5,841 | — | — | Form 4 |
| Aug 27, 2026 | Stern Sadie | EVP Chief People & Culture Off | S · Sale · 10b5-1 | Direct | 2,565 | $88.37 | $227K | Form 4 |
| Aug 22, 2026 | Stern Sadie | EVP Chief People & Culture Off | F · Tax withholding | Direct | 1,451 | $92.34 | $134K | Form 4 |
| Aug 22, 2026 | Brown Michael Jon | EVP Chief Legal Compliance Off | F · Tax withholding | Direct | 1,451 | $92.34 | $134K | Form 4 |
| Aug 22, 2026 | Leach Jacob Steven | President, CEO, and Director | F · Tax withholding | Direct | 1,451 | $92.34 | $134K | Form 4 |
| Aug 22, 2026 | Sylvain Jereme M | EVP, Chief Financal Officer | F · Tax withholding | Direct | 1,451 | $92.34 | $134K | Form 4 |
| Aug 20, 2026 | Sayer Kevin R | Executive Chair | S · Sale · 10b5-1 | Direct | 26,756 | $90.01 | $2.41M | Form 4 |
| Aug 14, 2026 | Brown Michael Jon | EVP Chief Legal Compliance Off | S · Sale · 10b5-1 | Direct | 1,700 | $91.93 | $156K | Form 4 |
| Aug 12, 2026 | Augustinos Nicholas | Director | G · Gift | Indirect | 1,075 | — | — | Form 4 |
| Aug 12, 2026 | Heller Bridgette P | Director | S · Sale · 10b5-1 | Direct | 1,012 | $88.29 | $89K | Form 4 |
| Aug 3, 2026 | Foletta Mark G | Director | S · Sale · 10b5-1 | Indirect | 2,000 | $85.32 | $171K | Form 4 |
| Jul 31, 2026 | Foletta Mark G | Director | S · Sale · 10b5-1 | Indirect | 2,000 | $80.00 | $160K | Form 4 |
| Jul 20, 2026 | Sayer Kevin R | Executive Chair | S · Sale · 10b5-1 | Direct | 26,756 | $76.32 | $2.04M | Form 4 |
DXCM insider trading FAQ
Are insiders buying DXCM stock?
Not on the open market. In the last 90 days, Dexcom Inc insiders made no open-market purchases, and no open-market sales. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading DXCM?
No insider bought or sold on the open market in the last 90 days.
Where does DXCM insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.