Company / CIK 0001093557
DEXCOM INC
- Ticker
- DXCM
- Size, estimated from filings
- Large cap ($10B – $200B)
- Insiders on file
- 6
- Members of Congress who traded it
- 2
- Federal contracts on record
- none matched
- Lobbying filings on record
- 20
- SEC filings
- EDGAR ↗
- Latest trade on record
- October 15, 2026
DEXCOM INC (DXCM) has 6 insiders on file who disclosed 12 transactions in the last 12 months (0 open-market buys, 11 sales, about $2.3M at reported prices), and 3 congressional trades in its stock are on record. No federal contract award that started in the last 180 days was found for a recipient with exactly this name, and 12 lobbying filings naming it as client report $1.2M in 2026.
DEXCOM INC in charts
Who is trading this stock
Which people account for the buying and selling over the last 12 months?
7 people account for the disclosed buying and selling in DEXCOM INC over the last 12 months; the most active is AUGUSTINOS NICHOLAS with $680K.
Lobbying spend by quarter
How much has DEXCOM INC reported spending on federal lobbying?
DEXCOM INC reported $2.3M in lobbying over the last eight quarters, from filings matched by exact company name.
Insiders
| Name | Role | Rows | Bought | Sold | Last filed |
|---|---|---|---|---|---|
| Brown Michael Jon | EVP Chief Legal Compliance Off | 3 | 0 | 3 | October 19, 2026 |
| Stern Sadie | EVP Chief People & Culture Off | 3 | 0 | 3 | September 30, 2026 |
| AUGUSTINOS NICHOLAS | Director | 2 | 0 | 2 | September 16, 2026 |
| Sylvain Jereme M | EVP, Chief Financal Officer | 2 | 0 | 2 | September 14, 2026 |
| Boehnlein Glenn S | Director | 1 | 0 | 0 | September 10, 2026 |
| Leach Jacob Steven | President, CEO, and Director | 1 | 0 | 1 | August 25, 2026 |
Rows are this company's Form 4 rows for each person. "Bought" and "sold" count open-market purchases (code P) and sales only. More in insider buying and insider selling.
Members of Congress who traded DXCM
From periodic transaction reports that name the company's stock. Amounts are the sums of the ranges as filed. Every row is on the DXCM page.
| Member | Seat | Trades | Bought | Sold | Range as filed | Latest |
|---|---|---|---|---|---|---|
| Tina Smith | Senator (MN), Democrat | 2 | 0 | 2 | $200K–$500K | May 7, 2026 |
| John Boozman | Senator (AR), Republican | 1 | 1 | 0 | $1,001–$15K | January 26, 2026 |
Insider transactions
| Filer | Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Brown Michael Jon | DXCM | Sell S | October 15, 2026 | October 19, 2026 | 4d | 1,700 | $85 | $145K | 10b5-1 plan | Form 4 ↗ | |
| Stern Sadie | DXCM | Sell S | September 28, 2026 | September 30, 2026 | 2d | 2,565 | $86 | $221K | 10b5-1 plan | Form 4 ↗ | |
| Brown Michael Jon | DXCM | Sell S | September 15, 2026 | September 16, 2026 | 1d | 1,700 | $84 | $143K | 10b5-1 plan | Form 4 ↗ | |
| AUGUSTINOS NICHOLAS | DXCM | Sell S | September 15, 2026 | September 16, 2026 | 1d | 6,539 | $84 | $550K | 10b5-1 planindirect | Form 4 ↗ | |
| AUGUSTINOS NICHOLAS | DXCM | Sell S | September 14, 2026 | September 16, 2026 | 2d | 1,550 | $84 | $130K | 10b5-1 planindirect | Form 4 ↗ | |
| Sylvain Jereme M | DXCM | Sell S | September 10, 2026 | September 14, 2026 | 4d | 3,638 | $83 | $303K | 10b5-1 plan | Form 4 ↗ | |
| Boehnlein Glenn S | DXCM | Other A | September 10, 2026 | September 10, 2026 | 0d | 5,841 | — | — | Form 4 ↗ | ||
| Stern Sadie | DXCM | Sell S | August 27, 2026 | August 28, 2026 | 1d | 2,565 | $88 | $227K | 10b5-1 plan | Form 4 ↗ | |
| Stern Sadie | DXCM | Sell F | August 22, 2026 | August 25, 2026 | 3d | 1,451 | $92 | $134K | Form 4 ↗ | ||
| Brown Michael Jon | DXCM | Sell F | August 22, 2026 | August 25, 2026 | 3d | 1,451 | $92 | $134K | Form 4 ↗ | ||
| Sylvain Jereme M | DXCM | Sell F | August 22, 2026 | August 25, 2026 | 3d | 1,451 | $92 | $134K | Form 4 ↗ | ||
| Leach Jacob Steven | DXCM | Sell F | August 22, 2026 | August 25, 2026 | 3d | 1,451 | $92 | $134K | Form 4 ↗ |
Federal contracts (USAspending, awards started in the last 180 days)
No contract award starting in the last 180 days was found for a recipient named exactly "DEXCOM INC". Subsidiaries and differently-spelled recipients are not matched — search contracts.
Lobbying (Senate LDA, as client)
| Period | Registrant | Primary issue | Amount | Source |
|---|---|---|---|---|
| 2026 Q3 | ALSTON & BIRD LLP | Health Issues | $40,000 | LDA ↗ |
| 2026 Q3 | CONTINENTAL STRATEGY, LLC | — | $25,000 | LDA ↗ |
| 2026 Q2 | DEXCOM, INC. | Medicare/Medicaid | $370,000 | LDA ↗ |
| 2026 Q2 | CONTINENTAL STRATEGY, LLC | Health Issues | $75,000 | LDA ↗ |
| 2026 Q2 | FARRAGUT PARTNERS LLP | Medicare/Medicaid | $50,000 | LDA ↗ |
| 2026 Q2 | ALSTON & BIRD LLP | Medicare/Medicaid | $40,000 | LDA ↗ |
| 2026 Q2 | BGR GOVERNMENT AFFAIRS | Medicare/Medicaid | $40,000 | LDA ↗ |
| 2026 Q2 | BGR GOVERNMENT AFFAIRS | Medicare/Medicaid | — | LDA ↗ |
| 2026 Q1 | DEXCOM, INC. | Health Issues | $380,000 | LDA ↗ |
| 2026 Q1 | CONTINENTAL STRATEGY, LLC | Health Issues | $75,000 | LDA ↗ |
| 2026 Q1 | FARRAGUT PARTNERS LLP | Medicare/Medicaid | $50,000 | LDA ↗ |
| 2026 Q1 | ALSTON & BIRD LLP | Health Issues | $40,000 | LDA ↗ |
| 2025 Q4 | DEXCOM, INC. | Trade (domestic/foreign) | $390,000 | LDA ↗ |
| 2025 Q4 | CONTINENTAL STRATEGY, LLC | Health Issues | $75,000 | LDA ↗ |
| 2025 Q4 | FARRAGUT PARTNERS LLP | Medicare/Medicaid | $50,000 | LDA ↗ |
| 2025 Q4 | ALSTON & BIRD LLP | Health Issues | $40,000 | LDA ↗ |
| 2025 Q3 | DEXCOM, INC. | Health Issues | $370,000 | LDA ↗ |
| 2025 Q3 | CONTINENTAL STRATEGY, LLC | Health Issues | $75,000 | LDA ↗ |
| 2025 Q3 | ALSTON & BIRD LLP | Health Issues | $50,000 | LDA ↗ |
| 2025 Q3 | FARRAGUT PARTNERS LLP | Medicare/Medicaid | $50,000 | LDA ↗ |
Related companies
Companies whose stock was traded by the same people who traded DXCM, by number of filers in common. It shows overlap in public filings and nothing else.
- Uber Technologies, Inc UBER 1 filer in common
- Arista Networks, Inc. ANET 1 filer in common
- Meta Platforms, Inc. META 1 filer in common
- MICRON TECHNOLOGY INC MU 1 filer in common
- NETFLIX INC NFLX 1 filer in common
- ADOBE INC. ADBE 1 filer in common
- Salesforce, Inc. CRM 1 filer in common
- ELI LILLY & Co LLY 1 filer in common
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Lobbying disclosure reports Reports are due about 20 days after each quarter ends.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| Senate eFD, periodic transaction reports | 2 | 3 | February 15, 2026 | May 10, 2026 | Senate eFD search |
| SEC EDGAR, Form 4 | 11 | 12 | August 25, 2026 | October 19, 2026 | Form 4 list on EDGAR |
| Lobbying disclosure filings | 20 filings | — | — | — | LDA.gov search |
Site built October 27, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Insiders and their transactions come from SEC EDGAR Form 4 filings for this issuer. Contracts and lobbying are matched by exact normalized name (suffixes like Inc./Corp. ignored) to USAspending recipients and LDA clients — a conservative match that misses subsidiaries on purpose. See methodology and corrections.
Not investment advice. Public records shown as filed; no recommendation is made or implied.