DEXCOM INC (DXCM) Insider Transactions
Over the last 12 months, 16 DEXCOM INC (DXCM) insiders filed 73 SEC Form 4 transactions — $1.0M in open-market purchases ( 1 distinct buyers) and $5.4M in open-market sales. 8% of all transactions were executed under a pre-scheduled Rule 10b5-1 trading plan.
- $1.0MOpen-market buys (1y)
- $5.4MOpen-market sells (1y)
- 16Distinct insiders
- 73Transactions filed
- 8%Under Rule 10b5-1 plan
- 2026-06-04Latest filing
Recent Form 4 Filings Most recent 50 of 73 (1-year window)
Each row is a single Form 4 filing event for DXCM, sourced directly from SEC EDGAR. The Type column classifies the SEC transaction code into Buy / Sell / Grant / Exercise / Other; the 10b5-1 badge marks trades executed under a pre-scheduled SEC Rule 10b5-1 plan.
| Date | Insider | Title | Type | SEC Code | Value | Shares | Price |
|---|---|---|---|---|---|---|---|
| 2026-06-04 | Coleman Jon | EVP, Chief Commercial Officer | Sell 10b5-1 | S | $364.1K | 4,911 | $74.13 |
| 2026-06-03 | Coleman Jon | EVP, Chief Commercial Officer | Sell 10b5-1 | S | $358.6K | 4,912 | $73.00 |
| 2026-05-28 | ALTMAN STEVEN R | — | Grant | A | $0 | 5,565 | $0.00 |
| 2026-05-28 | Malady Kyle | — | Grant | A | $0 | 5,575 | $0.00 |
| 2026-05-28 | AUGUSTINOS NICHOLAS | — | Grant | A | $0 | 5,575 | $0.00 |
| 2026-05-28 | FOLETTA MARK G | — | Grant | A | $0 | 6,331 | $0.00 |
| 2026-05-28 | Heller Bridgette P | — | Grant | A | $0 | 5,575 | $0.00 |
| 2026-05-28 | Osterloh Albert Frederick IV | — | Grant | A | $0 | 1,630 | $0.00 |
| 2026-05-28 | Driscoll Rimma | — | Grant | A | $0 | 5,605 | $0.00 |
| 2026-05-28 | Ashley Euan A. | — | Grant | A | $0 | 5,565 | $0.00 |
| 2026-05-28 | Collins Richard Alexander | — | Grant | A | $0 | 5,605 | $0.00 |
| 2026-05-28 | GALA RENEE D | — | Grant | A | $0 | 5,605 | $0.00 |
| 2026-05-22 | Leach Jacob Steven | President, CEO, and Director | Other | F | $104.3K | 1,451 | $71.90 |
| 2026-05-22 | Brown Michael Jon | EVP Chief Legal Compliance Off | Other | F | $104.3K | 1,451 | $71.90 |
| 2026-05-22 | Sylvain Jereme M | EVP, Chief Financal Officer | Other | F | $104.3K | 1,451 | $71.90 |
| 2026-05-22 | Stern Sadie | EVP Chief People & Culture Off | Other | F | $104.3K | 1,451 | $71.90 |
| 2026-05-22 | Coleman Jon | EVP, Chief Commercial Officer | Other | F | $529.3K | 7,362 | $71.90 |
| 2026-05-21 | SAYER KEVIN R | Executive Chair | Sell 10b5-1 | S | $1.9M | 26,759 | $72.00 |
| 2026-05-15 | Brown Michael Jon | EVP, Chief Legal Officer | Sell 10b5-1 | S | $101.8K | 1,700 | $59.91 |
| 2026-05-12 | Heller Bridgette P | — | Sell 10b5-1 | S | $60.7K | 1,012 | $60.01 |
| 2026-05-08 | AUGUSTINOS NICHOLAS | — | Other | G | $0 | 5,046 | $0.00 |
| 2026-05-08 | AUGUSTINOS NICHOLAS | — | Other | G | $0 | 5,046 | $0.00 |
| 2026-05-08 | Collins Richard Alexander | — | Other | G | $0 | 5,074 | $0.00 |
| 2026-05-08 | Collins Richard Alexander | — | Other | G | $0 | 5,074 | $0.00 |
| 2026-05-08 | FOLETTA MARK G | — | Other | G | $0 | 5,731 | $0.00 |
| 2026-05-08 | FOLETTA MARK G | — | Other | G | $0 | 5,731 | $0.00 |
| 2026-05-08 | ALTMAN STEVEN R | — | Other | G | $0 | 5,037 | $0.00 |
| 2026-05-08 | ALTMAN STEVEN R | — | Other | G | $0 | 5,037 | $0.00 |
| 2026-04-15 | Brown Michael Jon | EVP, Chief Legal Officer | Sell 10b5-1 | S | $107.2K | 1,700 | $63.04 |
| 2026-03-16 | Brown Michael Jon | EVP, Chief Legal Officer | Sell | — | $110.2K | 1,700 | $64.85 |
| 2026-03-08 | SAYER KEVIN R | Executive Chair | Grant | — | $0 | 32,749 | $0.00 |
| 2026-03-08 | SAYER KEVIN R | Executive Chair | Grant | — | $2.2M | 32,498 | $68.10 |
| 2026-03-08 | Sylvain Jereme M | EVP, Chief Financal Officer | Grant | — | $0 | 48,774 | $0.00 |
| 2026-03-08 | Sylvain Jereme M | EVP, Chief Financal Officer | Grant | — | $1.3M | 18,950 | $68.10 |
| 2026-03-08 | Brown Michael Jon | EVP, Chief Legal Officer | Grant | — | $0 | 39,019 | $0.00 |
| 2026-03-08 | Brown Michael Jon | EVP, Chief Legal Officer | Grant | — | $1.6M | 23,325 | $68.10 |
| 2026-03-08 | Stern Sadie | EVP, Chief HR Officer | Grant | — | $0 | 39,019 | $0.00 |
| 2026-03-08 | Stern Sadie | EVP, Chief HR Officer | Grant | — | $1.2M | 17,199 | $68.10 |
| 2026-03-08 | Leach Jacob Steven | President, CEO, and Director | Grant | — | $0 | 104,516 | $0.00 |
| 2026-03-08 | Leach Jacob Steven | President, CEO, and Director | Grant | — | $1.3M | 19,757 | $68.10 |
| 2026-03-08 | Coleman Jon | EVP, Chief Commercial Officer | Grant | — | $0 | 43,897 | $0.00 |
| 2026-02-26 | Osterloh Albert Frederick IV | — | Grant | — | $0 | 7,061 | $0.00 |
| 2026-02-12 | Heller Bridgette P | — | Sell | — | $68.8K | 1,012 | $68.01 |
| 2026-01-29 | Leach Jacob Steven | President, CEO, and Director | Grant | — | $0 | 8,310 | $0.00 |
| 2026-01-29 | Leach Jacob Steven | President, CEO, and Director | Grant | — | $224.3K | 3,058 | $73.36 |
| 2026-01-29 | Stern Sadie | EVP, Chief HR Officer | Grant | — | $0 | 7,123 | $0.00 |
| 2026-01-29 | Stern Sadie | EVP, Chief HR Officer | Grant | — | $194.8K | 2,656 | $73.36 |
| 2026-01-29 | Sylvain Jereme M | EVP, Chief Financal Officer | Grant | — | $0 | 7,123 | $0.00 |
| 2026-01-29 | Sylvain Jereme M | EVP, Chief Financal Officer | Grant | — | $194.6K | 2,652 | $73.36 |
| 2026-01-29 | Brown Michael Jon | EVP, Chief Legal Officer | Grant | — | $0 | 7,123 | $0.00 |
Showing the most recent 50 of 73 transactions. For the full 1-year history with sorting, filtering, and cross-ticker industry context, open the full insider transactions drilldown.
Top Insider Buyers of DXCM By dollar volume, 1-year window
- Leach Jacob Steven $1.0M
Methodology & FAQ
How We Track DXCM Insider Transactions
Form 4 disclosures are sourced directly from SEC EDGAR and re-ingested on every pipeline cycle. A complete description of transaction-code handling, the open-market vs grant distinction, and the Rule 10b5-1 plan-reference heuristic is documented in the Methodology.
What is an SEC Form 4 filing for DEXCOM INC?
Form 4 is a transaction-level disclosure that corporate insiders — officers, directors, and beneficial owners of more than 10% of a registered class of equity securities — must file with the SEC within two business days of any change in their beneficial ownership of DEXCOM INC (DXCM) shares.
What is a Rule 10b5-1 trading plan?
Rule 10b5-1 is an SEC rule that lets insiders schedule trades in advance under a written plan, providing an affirmative defense against insider-trading allegations as long as the plan was adopted in good faith and not while in possession of material non-public information. Form 4 rows marked "10b5-1" on this page indicate the underlying trade was executed under such a plan; rows without the badge are discretionary or did not reference a plan in the Form 4 footnotes.
How is "insider buying" different from a stock grant or option exercise?
An insider buy (SEC transaction code P) is an open-market purchase of DEXCOM INC (DXCM) stock executed at the prevailing market price using the insider's personal capital. Stock grants (code A) and option exercises (code M) are compensation events, not directional trades; they are tracked separately and excluded from the "conviction" signal because they are not discretionary purchases.
How recent is the data?
Form 4 transactions are typically reported within two business days of execution. Pactolio re-ingests the EDGAR feed on a nightly cycle and reflects new filings on the next ingest run, typically within 24 hours of EDGAR acceptance. The table on this page covers the most recent 1-year window.