Company · Ownership research

DEXCOM INC DXCM

CIK 0001093557

Form 4 transactions dated Nov 1, 2023 to Nov 10, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 31 rows; the complete set is available through the API.

Insider filings on file run through Nov 3, 2026.

Insider purchases & sales

Purchased: $1.00M
Sold: $66.17M

Nov 1, 2023 – Nov 3, 2026
Available records · partial months are marked ·

202510 of 30 preview events · 31 available in 2025

Date	Insider	Activity	Trade value (USD)	% of prior holding
Nov 14, 2025	Collins Richard Alexander Director	Sale10b5-1 footnote	$171.60K 2,906 shares sold	7.65% sold Trust holding	▾
Nov 12, 2025	Heller Bridgette P Director	Sale10b5-1 footnote	$58.77K 1,012 shares sold	3.61% sold Direct holding	▾
Nov 10, 2025	Leach Jacob Steven President & COO	Purchase	$1.00M 18,200 shares bought	5.81% added Direct holding	▾
Nov 10, 2025	Collins Richard Alexander Director	Sale10b5-1 footnote	$217.81K 3,948 shares sold	9.41% sold Trust holding	▾
Sep 5, 2025	Malady Kyle Director	Sale10b5-1 footnote	$53.93K 667 shares sold	2.86% sold Direct holding	▾
Sep 4, 2025	Stern Sadie EVP, Chief HR Officer	Sale10b5-1 footnote	$117.28K 1,466 shares sold	1.37% sold Direct holding	▾
Sep 2, 2025	Sylvain Jereme M EVP, Chief Financal Officer	Sale10b5-1 footnote	$357.80K 4,824 shares sold	3.91% sold Direct holding	▾
Aug 15, 2025	Brown Michael Jon EVP, Chief Legal Officer	Sale10b5-1 footnote	$40.15K 500 shares sold	0.53% sold Direct holding	▾
Aug 15, 2025	FOLETTA MARK G Director	Sale10b5-1 footnote	$222.90K 2,750 shares sold	5.10% sold Trust holding	▾
Jul 28, 2025	Stern Sadie EVP, Chief HR Officer	Sale10b5-1 footnote	$130.46K 1,466 shares sold	1.36% sold Direct holding	▾

Showing 30 / 31 record groups in 2025. The complete set is available through the API.

DEXCOM INC · DXCM

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 30 of 31 purchase / sale groups and 30 of 33 other groups; the totals and the monthly series cover the whole window.

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{"action":"list","ticker":"DXCM","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.