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D

DXCM

Nasdaq

DEXCOM INC

Latest disclosureSeptember 30, 2026
Insider score Why 0?
0/ 100
Qualifying buys · 30d
$0

0 purchases · 25 sales

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Insider transactions 54

Limited filing history
All54Buying0Selling25Other29
Filters

Last 30 daysNo qualifying insider buying. Sales: $1.35M by 4 insiders.

25 of 54 trades · April 15, 2026 – September 28, 2026Incomplete history: this shows the filings imported so far, not every filing ever made. Dates are trade dates. Filters affect this table only.

Showing the first 6 of 25 trades on this page.

Sale disclosed

Sadie Stern

EVP Chief People & Culture Off

Common Stock

Reported value
$220.97K
Reported price
$86.15 / share
Traded September 28, 2026Filed September 30, 2026SEC filing
Sale disclosed

Nicholas Augustinos

Director

Common Stock

Reported value
$130.23K
Reported price
$84.02 / share
Traded September 14, 2026Filed September 16, 2026SEC filing
Sale disclosed

Nicholas Augustinos

Director

Common Stock

Reported value
$549.54K
Reported price
$84.04 / share
Traded September 15, 2026Filed September 16, 2026SEC filing
Sale disclosed

Michael Jon Brown

EVP Chief Legal Compliance Off

Common Stock

Reported value
$142.87K
Reported price
$84.04 / share
Traded September 15, 2026Filed September 16, 2026SEC filing
Sale disclosed

Jereme M. Sylvain

EVP, Chief Financal Officer

Common Stock

Reported value
$302.94K
Reported price
$83.27 / share
Traded September 10, 2026Filed September 14, 2026SEC filing
Sale disclosed

Sadie Stern

EVP Chief People & Culture Off

Common Stock

Reported value
$226.67K
Reported price
$88.37 / share
Traded August 27, 2026Filed August 28, 2026SEC filing
Sale disclosed

Kevin R. Sayer

Executive Chair

Common Stock

Reported value
$1.73M
Reported price
$89.706 / share
Traded August 20, 2026Filed August 24, 2026SEC filing
Sale disclosed

Kevin R. Sayer

Executive Chair

Common Stock

Reported value
$667.33K
Reported price
$90.7811 / share
Traded August 20, 2026Filed August 24, 2026SEC filing
Sale disclosed

Kevin R. Sayer

Executive Chair

Common Stock

Reported value
$8.87K
Reported price
$91.41 / share
Traded August 20, 2026Filed August 24, 2026SEC filing
Sale disclosed

Michael Jon Brown

EVP Chief Legal Compliance Off

Common Stock

Reported value
$156.28K
Reported price
$91.93 / share
Traded August 14, 2026Filed August 17, 2026SEC filing
Sale disclosed

Bridgette P. Heller

Director

Common Stock

Reported value
$89.35K
Reported price
$88.29 / share
Traded August 12, 2026Filed August 13, 2026SEC filing
Sale disclosed

Mark G. Foletta

Director

Common Stock

Reported value
$160K
Reported price
$80.00 / share
Traded July 31, 2026Filed August 4, 2026SEC filing
Sale disclosed

Mark G. Foletta

Director

Common Stock

Reported value
$170.64K
Reported price
$85.32 / share
Traded August 3, 2026Filed August 4, 2026SEC filing
Sale disclosed

Kevin R. Sayer

Executive Chair

Common Stock

Reported value
$2.04M
Reported price
$76.3193 / share
Traded July 20, 2026Filed July 21, 2026SEC filing
Sale disclosed

Michael Jon Brown

EVP Chief Legal Compliance Off

Common Stock

Reported value
$126.51K
Reported price
$74.42 / share
Traded July 15, 2026Filed July 16, 2026SEC filing
Sale disclosed

Kevin R. Sayer

Executive Chair

Common Stock

Reported value
$1.93M
Reported price
$72.00 / share
Traded July 6, 2026Filed July 7, 2026SEC filing
Sale disclosed

Michael Jon Brown

EVP Chief Legal Compliance Off

Common Stock

Reported value
$128.44K
Reported price
$75.55 / share
Traded June 15, 2026Filed June 17, 2026SEC filing
Sale disclosed

Mark G. Foletta

Director

Common Stock

Reported value
$281.65K
Reported price
$74.0991 / share
Traded June 15, 2026Filed June 17, 2026SEC filing
Sale disclosed

Mark G. Foletta

Director

Common Stock

Reported value
$14.89K
Reported price
$74.8187 / share
Traded June 15, 2026Filed June 17, 2026SEC filing
Sale disclosed

Jon Coleman

EVP, Chief Commercial Officer

Common Stock

Reported value
$358.58K
Reported price
$73.00 / share
Traded June 3, 2026Filed June 5, 2026SEC filing
Sale disclosed

Jon Coleman

EVP, Chief Commercial Officer

Common Stock

Reported value
$364.05K
Reported price
$74.13 / share
Traded June 4, 2026Filed June 5, 2026SEC filing
Sale disclosed

Kevin R. Sayer

Executive Chair

Common Stock

Reported value
$1.93M
Reported price
$72.00 / share
Traded May 21, 2026Filed May 26, 2026SEC filing
Sale disclosed

Michael Jon Brown

EVP, Chief Legal Officer

Common Stock

Reported value
$101.85K
Reported price
$59.91 / share
Traded May 15, 2026Filed May 19, 2026SEC filing
Sale disclosed

Bridgette P. Heller

Director

Common Stock

Reported value
$60.73K
Reported price
$60.01 / share
Traded May 12, 2026Filed May 14, 2026SEC filing
Sale disclosed

Michael Jon Brown

EVP, Chief Legal Officer

Common Stock

Reported value
$107.17K
Reported price
$63.04 / share
Traded April 15, 2026Filed April 16, 2026SEC filing
Reporting insiderSecurity / transactionAmount / priceValueTraded / disclosedSource
EVP Chief People & Culture OffCommon StockSale10b5-12,565$86.15 / share$220.97KSep 28Filed Sep 30 · 2d laterSEC filing
DirectorCommon StockSale10b5-11,550$84.02 / share$130.23KSep 14Filed Sep 16 · 2d laterSEC filing
DirectorCommon StockSale10b5-16,539$84.04 / share$549.54KSep 15Filed Sep 16 · 1d laterSEC filing
EVP Chief Legal Compliance OffCommon StockSale10b5-11,700$84.04 / share$142.87KSep 15Filed Sep 16 · 1d laterSEC filing
EVP, Chief Financal OfficerCommon StockSale10b5-13,638$83.27 / share$302.94KSep 10Filed Sep 14 · 4d laterSEC filing
EVP Chief People & Culture OffCommon StockSale10b5-12,565$88.37 / share$226.67KAug 27Filed Aug 28 · 1d laterSEC filing
Executive ChairCommon StockSale10b5-13 trades26,756avg $90.01 / share$2.41MAug 20Filed Aug 24 · 4d later
3 filings
  • 19,308 @ $89.71 · $1.73MSEC filing
  • 7,351 @ $90.78 · $667.33KSEC filing
  • 97 @ $91.41 · $8.87KSEC filing
EVP Chief Legal Compliance OffCommon StockSale10b5-11,700$91.93 / share$156.28KAug 14Filed Aug 17 · 3d laterSEC filing
DirectorCommon StockSale10b5-11,012$88.29 / share$89.35KAug 12Filed Aug 13 · 1d laterSEC filing
DirectorCommon StockSale10b5-12,000$80.00 / share$160KJul 31Filed Aug 4 · 4d laterSEC filing
DirectorCommon StockSale10b5-12,000$85.32 / share$170.64KAug 3Filed Aug 4 · 1d laterSEC filing
Executive ChairCommon StockSale10b5-126,756$76.32 / share$2.04MJul 20Filed Jul 21 · 1d laterSEC filing
EVP Chief Legal Compliance OffCommon StockSale10b5-11,700$74.42 / share$126.51KJul 15Filed Jul 16 · 1d laterSEC filing
Executive ChairCommon StockSale10b5-126,756$72.00 / share$1.93MJul 6Filed Jul 7 · 1d laterSEC filing
EVP Chief Legal Compliance OffCommon StockSale10b5-11,700$75.55 / share$128.44KJun 15Filed Jun 17 · 2d laterSEC filing
DirectorCommon StockSale10b5-12 trades4,000avg $74.13 / share$296.54KJun 15Filed Jun 17 · 2d later
2 filings
  • 3,801 @ $74.10 · $281.65KSEC filing
  • 199 @ $74.82 · $14.89KSEC filing
EVP, Chief Commercial OfficerCommon StockSale10b5-14,912$73.00 / share$358.58KJun 3Filed Jun 5 · 2d laterSEC filing
EVP, Chief Commercial OfficerCommon StockSale10b5-14,911$74.13 / share$364.05KJun 4Filed Jun 5 · 1d laterSEC filing
Executive ChairCommon StockSale10b5-126,759$72.00 / share$1.93MMay 21Filed May 26 · 5d laterSEC filing
EVP, Chief Legal OfficerCommon StockSale10b5-11,700$59.91 / share$101.85KMay 15Filed May 19 · 4d laterSEC filing
DirectorCommon StockSale10b5-11,012$60.01 / share$60.73KMay 12Filed May 14 · 2d laterSEC filing
EVP, Chief Legal OfficerCommon StockSale10b5-11,700$63.04 / share$107.17KApr 15Filed Apr 16 · 1d laterSEC filing

Congress transactions 3

All Congress filings
Full sale disclosed

DexCom, Inc. - Common Stock · Stock

The filing reports a full sale for a spouse.

Tina Smith official portraitTina SmithReporting Senate member
Reported amount
$100,001 – $250,000Reported range; exact amount not disclosed.
Trade date
May 7, 2026
Filed May 10, 2026 · 3d laterOriginal report
Partial sale disclosed

DexCom, Inc. - Common Stock · Stock

The filing reports a partial sale for a spouse.

Tina Smith official portraitTina SmithReporting Senate member
Reported amount
$100,001 – $250,000Reported range; exact amount not disclosed.
Trade date
April 29, 2026
Filed May 10, 2026 · 11d laterOriginal report
Purchase disclosed

Dexcom Inc · Stock

The filing reports a purchase for a joint account.

John Boozman official portraitJohn BoozmanReporting Senate member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
January 26, 2026
Filed February 15, 2026 · 20d laterOriginal report
Explore furtherTechnical lab Company financials Test a strategy Compare company

Why this buying score?

No qualifying common-equity purchases

No eligible common-equity purchase is public by this cutoff within 180 transaction-date days. Other instruments, exercises and routine activity do not contribute purchase points.

+0 pts

This score describes qualifying insider purchases at issuer level. Read the methodology

Sources and coverage

Limited filing history · Market-wide discovery does not establish complete company history. View coverage
Source
SEC EDGAR · Form 4
Issuer CIK
0001093557
Latest public acceptance
Sep 30, 2026, 08:15 PM UTC
Score calculated
Oct 8, 2026, 12:05 AM UTC
Parser
form4-parser-1.5
Classifier
form4-classifier-1.1
Scoring methodology
insider-experimental-1.1
Availability
Public filing time, not trade date

Open a transaction's SEC filing for the primary evidence. A code P may describe an open-market or private purchase; classification is not proof of intent.

Insider activity can have many explanations. Signal Strength is not a probability of profit or a recommendation to trade.