Dexcom DXCM Insider Ownership

NASDAQ DXCM

$82.69 -3.05 (-3.56%)

As of: Oct 21, 2026 · 10:46 AM EDT

Insider Holdings by Owner

2.68Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

0.522%

▼-0.028% pp QoQ

Shares Held by Insiders

1.99Mn

filed for Sep 2026

▼-5.14% QoQ

Shares Outstanding

382.20Mn

382,200,000 shares

Direct Holdings

1.37Mn

Indirect: 627.59K

Net Shares Traded (QoQ)

-108.12K

net selling in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 5, 2026

Across the past 12 months, open-market trades by Dexcom insiders totaled $1 million in purchases (18.2K shares) and $12.62 million in sales (164.51K shares).

By number of insiders, Dexcom saw one insider buy and 9 insiders sell on the open market over the past 12 months.
Among Dexcom insiders, Jacob Steven Leach (President & COO) led open-market buying over the past 12 months with $1 million of purchases (18.2K shares); the latest was on November 10, 2025.
On the sell side, Kevin R. Sayer (Executive Chair) led open-market sales of Dexcom stock over the past 12 months with $8.3 million (107.03K shares), most recently on August 20, 2026.
The latest open-market trade on record is a sale of 2.56K shares for $220,975 by Sadie Stern (EVP Chief People & Culture Officer) on September 28, 2026.
Apart from open-market trades, DXCM insiders received 400.38K shares in stock awards, gave up 167.27K shares to cover taxes or exercise prices and gave away 21.96K shares as gifts in the past 12 months.
Business Quant data puts insider holdings in DXCM at 1.99Mn shares across insiders' latest Form 4 filings, or 0.52% of the 382.2Mn shares outstanding; that total is down 5.14% from 2.1Mn shares at the end of Q2 2026.
Of the 1.99Mn shares held by Dexcom insiders, 1.37Mn shares (68.53%) are held directly and 627.59K shares (31.47%) indirectly, through trusts, partnerships, family members and other entities.
Holdings in Dexcom stock are reported by 20 insiders, the officers, directors and 10% owners who have filed a Form 4 in the past two years.
Dexcom's three biggest insider holders are Jacob Steven Leach (President, CEO, and Director, 466.2K shares), Eric Topol (Director, 380.55K shares) and Kevin R. Sayer (Executive Chair, 302.21K shares), based on their latest Form 4 filings.
The largest insider, Jacob Steven Leach, holds 23.38% of DXCM's insider total.
In the last 12 months, 63 Form 4 filings with transactions in DXCM stock came from 17 insiders.
The insider data for DXCM reflects Form 4 filings through September 30, 2026.

Form 4 Holdings

Insiders Holding DXCM

Insiders 32

Shares held 2.68Mn

Of outstanding 0.701%

#	Insider	Position	Direct	Indirect	Total	Share of Insiders	Last Filed
1	Jacob Steven Leach	President, Ceo, And Director	418,908	0	418,908	15.6%	25 Aug, 2026
2	Eric Topol	Director	0	380,545	380,545	14.2%	12 May, 2025
3	Kevin R Sayer	Executive Chair	302,214	0	302,214	11.3%	24 Aug, 2026
4	Donald Abbey	Evp Global Business Services I	208,023	0	208,023	7.8%	14 Mar, 2023
5	Jereme M Sylvain	Evp, Chief Financal Officer	146,828	0	146,828	5.5%	14 Sep, 2026
6	Steven Robert Pacelli	Evp Managing Director Dexcom V	124,775	0	124,775	4.7%	27 Nov, 2023
7	Sadie Stern	Evp Chief People Culture Off	123,478	0	123,478	4.6%	30 Sep, 2026
8	Michael Jon Brown	Evp Chief Legal Compliance Off	99,885	0	99,885	3.7%	16 Sep, 2026
9	Jon Coleman	Evp, Chief Commercial Officer	95,450	0	95,450	3.6%	05 Jun, 2026
10	Teri L Lawver	Evp Chief Commercial Officer	66,641	0	66,641	2.5%	14 Mar, 2024
11	Jay S Skyler	Director	0	63,348	63,348	2.4%	22 May, 2023
12	Barry J. Regan	Evp Operations	58,469	0	58,469	2.2%	19 Dec, 2023
13	Sumi Shrishrimal	Svp Chief Risk Officer	55,156	0	55,156	2.1%	10 Mar, 2022
14	Chad Patterson	Evp Global Marketing	54,700	0	54,700	2.0%	10 May, 2022
15	Andrew K Balo	Evp Regulatory Strategy Clinic	50,908	0	50,908	1.9%	14 Mar, 2023
16	Paul R Flynn	Evp Global Revenue	48,949	0	48,949	1.8%	19 Dec, 2023
17	Mark G Foletta	Director	0	48,852	48,852	1.8%	04 Aug, 2026
18	Shelly Ramasamy Selvaraj	Svp Chief Information Officer	48,453	0	48,453	1.8%	12 Sep, 2023
19	Girish Naganathan	Evp Chief Technology Officer	47,725	0	47,725	1.8%	27 Nov, 2023
20	Matthew Vincent Dolan	Evp, Strategy Corporate Dev	42,044	0	42,044	1.6%	30 Jan, 2025
21	Bridgette P Heller	Director	29,570	0	29,570	1.1%	13 Aug, 2026
22	Nicholas Augustinos	Director	0	29,293	29,293	1.1%	16 Sep, 2026
23	Kyle Malady	Director	28,242	0	28,242	1.1%	01 Jun, 2026
24	Barbara Kahn	Director	0	22,575	22,575	0.8%	21 May, 2024
25	Karen M Dahut	Director	0	17,779	17,779	0.7%	12 May, 2025
26	Rimma Driscoll	Director	17,319	0	17,319	0.6%	01 Jun, 2026
27	Euan A. Ashley	Director	12,731	0	12,731	0.5%	01 Jun, 2026
28	Renee D Gala	Director	12,486	0	12,486	0.5%	01 Jun, 2026
29	Albert Frederick Iv Osterloh	Director	8,691	0	8,691	0.3%	01 Jun, 2026
30	Glenn S Boehnlein	Director	5,841	0	5,841	0.2%	10 Sep, 2026
31	Richard Alexander Collins	Director	5,605	0	5,605	0.2%	01 Jun, 2026
32	Steven R Altman	Director	5,565	0	5,565	0.2%	01 Jun, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

4,085 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
28 Sep, 2026	Sadie Stern	Evp Chief People Culture Off	Disposed S	2,565	$86.15	$220.97K	123,478	Direct
14 Sep, 2026	Nicholas Augustinos	Director	Disposed S	1,550	$84.02	$130.23K	35,832	Indirect
15 Sep, 2026	Michael Jon Brown	Evp Chief Legal Compliance Off	Disposed S	1,700	$84.04	$142.87K	99,885	Direct
15 Sep, 2026	Nicholas Augustinos	Director	Disposed S	6,539	$84.04	$549.54K	29,293	Indirect
10 Sep, 2026	Jereme M Sylvain	Evp, Chief Financal Officer	Disposed S	3,638	$83.27	$302.94K	146,828	Direct
10 Sep, 2026	Glenn S Boehnlein	Director	Acquired A	5,841	$0.00	$0	5,841	Direct
27 Aug, 2026	Sadie Stern	Evp Chief People Culture Off	Disposed S	2,565	$88.37	$226.67K	126,043	Direct
22 Aug, 2026	Jereme M Sylvain	Evp, Chief Financal Officer	Disposed F	1,451	$92.34	$133.99K	150,390	Direct
22 Aug, 2026	Michael Jon Brown	Evp Chief Legal Compliance Off	Disposed F	1,451	$92.34	$133.99K	101,502	Direct
22 Aug, 2026	Sadie Stern	Evp Chief People Culture Off	Disposed F	1,451	$92.34	$133.99K	128,608	Direct
22 Aug, 2026	Jacob Steven Leach	President, Ceo, And Director	Disposed F	1,451	$92.34	$133.99K	418,908	Direct
20 Aug, 2026	Kevin R Sayer	Executive Chair	Disposed S	19,308	$89.71	$1.73Mn	309,662	Direct
20 Aug, 2026	Kevin R Sayer	Executive Chair	Disposed S	7,351	$90.78	$667.33K	302,311	Direct
20 Aug, 2026	Kevin R Sayer	Executive Chair	Disposed S	97	$91.41	$8.87K	302,214	Direct
14 Aug, 2026	Michael Jon Brown	Evp Chief Legal Compliance Off	Disposed S	1,700	$91.93	$156.28K	102,953	Direct
12 Aug, 2026	Nicholas Augustinos	Director	Disposed G	1,075	$0.00	$0	37,382	Indirect
12 Aug, 2026	Bridgette P Heller	Director	Disposed S	1,012	$88.29	$89.35K	29,570	Direct
31 Jul, 2026	Mark G Foletta	Director	Disposed S	2,000	$80.00	$160.00K	50,852	Indirect
03 Aug, 2026	Mark G Foletta	Director	Disposed S	2,000	$85.32	$170.64K	48,852	Indirect
20 Jul, 2026	Kevin R Sayer	Executive Chair	Disposed S	26,756	$76.32	$2.04Mn	328,970	Direct

Showing 1 to 20 of 4,085 transactions