DexCom Inc (DXCM)

Overview Chart Financials Statistics Earnings Insider transactions ETFs News

Insider transactions

A complete record of Form 4 filings tracking every share acquisition and disposal by executives, directors, and senior officers. Filterable by date range and transaction type, the table exposes the direct market actions of those with the deepest knowledge of a company's operations — providing a factual, data-driven signal of internal conviction that complements traditional fundamental and technical analysis.

Transaction date	Executive	Executive Title	Security Type	Acquisition / Disposal	Shares	Share price
Sep 15, 2026	BROWN, MICHAEL JON	EVP Chief Legal Compliance Off	Common Stock	Disposal	1,700	84.04
Sep 15, 2026	AUGUSTINOS, NICHOLAS	Director	Common Stock	Disposal	6,539	84.04
Sep 14, 2026	AUGUSTINOS, NICHOLAS	Director	Common Stock	Disposal	1,550	84.02
Sep 10, 2026	BOEHNLEIN, GLENN S	Director	Common Stock	Acquisition	5,841	0
Sep 10, 2026	SYLVAIN, JEREME M	EVP, Chief Financal Officer	Common Stock	Disposal	3,638	83.27
Aug 27, 2026	STERN, SADIE	EVP Chief People & Culture Off	Common Stock	Disposal	2,565	88.37
Aug 22, 2026	STERN, SADIE	EVP Chief People & Culture Off	Common Stock	Disposal	1,451	92.34
Aug 22, 2026	SYLVAIN, JEREME M	EVP, Chief Financal Officer	Common Stock	Disposal	1,451	92.34
Aug 22, 2026	BROWN, MICHAEL JON	EVP Chief Legal Compliance Off	Common Stock	Disposal	1,451	92.34
Aug 22, 2026	LEACH, JACOB STEVEN	Director, President, CEO, and Director	Common Stock	Disposal	1,451	92.34
Aug 20, 2026	SAYER, KEVIN R	Director, Executive Chair	Common Stock	Disposal	7,351	90.781
Aug 20, 2026	SAYER, KEVIN R	Director, Executive Chair	Common Stock	Disposal	19,308	89.706
Aug 20, 2026	SAYER, KEVIN R	Director, Executive Chair	Common Stock	Disposal	97	91.41
Aug 14, 2026	BROWN, MICHAEL JON	EVP Chief Legal Compliance Off	Common Stock	Disposal	1,700	91.93
Aug 12, 2026	HELLER, BRIDGETTE P	Director	Common Stock	Disposal	1,012	88.29
Aug 12, 2026	AUGUSTINOS, NICHOLAS	Director	Common Stock	Disposal	1,075	0
Aug 3, 2026	FOLETTA, MARK G	Director	Common Stock	Disposal	2,000	85.32
Jul 31, 2026	FOLETTA, MARK G	Director	Common Stock	Disposal	2,000	80
Jul 20, 2026	SAYER, KEVIN R	Director, Executive Chair	Common Stock	Disposal	26,756	76.319
Jul 15, 2026	BROWN, MICHAEL JON	EVP Chief Legal Compliance Off	Common Stock	Disposal	1,700	74.42
Jul 6, 2026	SAYER, KEVIN R	Director, Executive Chair	Common Stock	Disposal	26,756	72
Jun 15, 2026	FOLETTA, MARK G	Director	Common Stock	Disposal	199	74.819
Jun 15, 2026	FOLETTA, MARK G	Director	Common Stock	Disposal	3,801	74.099
Jun 15, 2026	BROWN, MICHAEL JON	EVP Chief Legal Compliance Off	Common Stock	Disposal	1,700	75.55
Jun 4, 2026	COLEMAN, JON	EVP, Chief Commercial Officer	Common Stock	Disposal	4,911	74.13
Jun 3, 2026	COLEMAN, JON	EVP, Chief Commercial Officer	Common Stock	Disposal	4,912	73
May 28, 2026	HELLER, BRIDGETTE P	Director	Common Stock	Acquisition	5,575	0
May 28, 2026	COLLINS, RICHARD ALEXANDER	Director	Common Stock	Acquisition	5,605	0
May 28, 2026	MALADY, KYLE	Director	Common Stock	Acquisition	5,575	0
May 28, 2026	FOLETTA, MARK G	Director	Common Stock	Acquisition	6,331	0
May 28, 2026	GALA, RENEE D	Director	Common Stock	Acquisition	5,605	0
May 28, 2026	ALTMAN, STEVEN R	Director	Common Stock	Acquisition	5,565	0
May 28, 2026	AUGUSTINOS, NICHOLAS	Director	Common Stock	Acquisition	5,575	0
May 28, 2026	ASHLEY, EUAN A.	Director	Common Stock	Acquisition	5,565	0
May 28, 2026	DRISCOLL, RIMMA	Director	Common Stock	Acquisition	5,605	0
May 28, 2026	OSTERLOH, ALBERT FREDERICK IV	Director	Common Stock	Acquisition	1,630	0
May 22, 2026	STERN, SADIE	EVP Chief People & Culture Off	Common Stock	Disposal	1,451	71.9
May 22, 2026	COLEMAN, JON	EVP, Chief Commercial Officer	Common Stock	Disposal	7,362	71.9
May 22, 2026	BROWN, MICHAEL JON	EVP Chief Legal Compliance Off	Common Stock	Disposal	1,451	71.9
May 22, 2026	LEACH, JACOB STEVEN	Director, President, CEO, and Director	Common Stock	Disposal	1,451	71.9
May 22, 2026	SYLVAIN, JEREME M	EVP, Chief Financal Officer	Common Stock	Disposal	1,451	71.9
May 21, 2026	SAYER, KEVIN R	Director, Executive Chair	Common Stock	Disposal	26,759	72
May 15, 2026	BROWN, MICHAEL JON	EVP, Chief Legal Officer	Common Stock	Disposal	1,700	59.91
May 12, 2026	HELLER, BRIDGETTE P	Director	Common Stock	Disposal	1,012	60.01
May 8, 2026	AUGUSTINOS, NICHOLAS	Director	Common Stock	Disposal	5,046	0
May 8, 2026	AUGUSTINOS, NICHOLAS	Director	Common Stock	Acquisition	5,046	0
May 8, 2026	ALTMAN, STEVEN R	Director	Common Stock	Acquisition	5,037	0
May 8, 2026	ALTMAN, STEVEN R	Director	Common Stock	Disposal	5,037	0
May 8, 2026	FOLETTA, MARK G	Director	Common Stock	Disposal	5,731	0
May 8, 2026	FOLETTA, MARK G	Director	Common Stock	Acquisition	5,731	0
May 8, 2026	COLLINS, RICHARD ALEXANDER	Director	Common Stock	Acquisition	5,074	0
May 8, 2026	COLLINS, RICHARD ALEXANDER	Director	Common Stock	Disposal	5,074	0
Apr 15, 2026	BROWN, MICHAEL JON	EVP, Chief Legal Officer	Common Stock	Disposal	1,700	63.04
Mar 16, 2026	BROWN, MICHAEL JON	EVP, Chief Legal Officer	Common Stock	Disposal	1,700	64.85
Mar 8, 2026	COLEMAN, JON	EVP, Chief Commercial Officer	Common Stock	Acquisition	43,897	0
Mar 8, 2026	STERN, SADIE	EVP, Chief HR Officer	Common Stock	Acquisition	39,019	0
Mar 8, 2026	LEACH, JACOB STEVEN	Director, President, CEO, and Director	Common Stock	Disposal	19,757	68.1
Mar 8, 2026	BROWN, MICHAEL JON	EVP, Chief Legal Officer	Common Stock	Acquisition	39,019	0
Mar 8, 2026	BROWN, MICHAEL JON	EVP, Chief Legal Officer	Common Stock	Disposal	23,325	68.1
Mar 8, 2026	SYLVAIN, JEREME M	EVP, Chief Financal Officer	Common Stock	Disposal	18,950	68.1
Mar 8, 2026	SYLVAIN, JEREME M	EVP, Chief Financal Officer	Common Stock	Acquisition	48,774	0
Mar 8, 2026	LEACH, JACOB STEVEN	Director, President, CEO, and Director	Common Stock	Acquisition	104,516	0
Mar 8, 2026	SAYER, KEVIN R	Director, Executive Chair	Common Stock	Acquisition	32,749	0
Mar 8, 2026	SAYER, KEVIN R	Director, Executive Chair	Common Stock	Disposal	32,498	68.1
Mar 8, 2026	STERN, SADIE	EVP, Chief HR Officer	Common Stock	Disposal	17,199	68.1
Feb 26, 2026	OSTERLOH, ALBERT FREDERICK IV	Director	Common Stock	Acquisition	7,061	0
Feb 12, 2026	HELLER, BRIDGETTE P	Director	Common Stock	Disposal	1,012	68.01
Jan 29, 2026	SYLVAIN, JEREME M	EVP, Chief Financal Officer	Common Stock	Disposal	2,652	73.36
Jan 29, 2026	BROWN, MICHAEL JON	EVP, Chief Legal Officer	Common Stock	Disposal	2,653	73.36
Jan 29, 2026	SAYER, KEVIN R	Director, Executive Chair	Common Stock	Acquisition	71,218	0
Jan 29, 2026	BROWN, MICHAEL JON	EVP, Chief Legal Officer	Common Stock	Acquisition	7,123	0
Jan 29, 2026	SYLVAIN, JEREME M	EVP, Chief Financal Officer	Common Stock	Acquisition	7,123	0
Jan 29, 2026	STERN, SADIE	EVP, Chief HR Officer	Common Stock	Disposal	2,656	73.36
Jan 29, 2026	LEACH, JACOB STEVEN	Director, President, CEO, and Director	Common Stock	Acquisition	8,310	0
Jan 29, 2026	LEACH, JACOB STEVEN	Director, President, CEO, and Director	Common Stock	Disposal	3,058	73.36
Jan 29, 2026	STERN, SADIE	EVP, Chief HR Officer	Common Stock	Acquisition	7,123	0
Jan 29, 2026	SAYER, KEVIN R	Director, Executive Chair	Common Stock	Disposal	34,257	73.36
Nov 14, 2025	COLLINS, RICHARD ALEXANDER	Director	Common Stock	Disposal	2,906	59.05
Nov 12, 2025	HELLER, BRIDGETTE P	Director	Common Stock	Disposal	1,012	58.07
Nov 10, 2025	COLLINS, RICHARD ALEXANDER	Director	Common Stock	Disposal	3,948	55.17
Nov 10, 2025	LEACH, JACOB STEVEN	President & COO	Common Stock	Acquisition	15,700	54.977
Nov 10, 2025	LEACH, JACOB STEVEN	President & COO	Common Stock	Acquisition	2,500	55.425
Oct 24, 2025	ASHLEY, EUAN A.	Director	Common Stock	Acquisition	7,166	0