Company · Ownership research

Anterix Inc. ATEX

CIK 0001304492

Form 4 transactions dated Nov 1, 2023 to Nov 7, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 49 rows; the complete set is available through the API.

Insider filings on file run through Oct 13, 2026.

Some filings are submitted jointly by several insiders. The SEC form does not apportion the reported figures between them, so results include every joint filer.

Insider purchases & sales

Purchased: $4.43M
Sold: $30.75M

Nov 1, 2023 – Oct 13, 2026
Available records · partial months are marked ·

202610 of 19 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Oct 9, 2026	Marquez Elena Chief Financial Officer	Sale10b5-1 footnote	$400.61K 4,981 shares sold	Unavailable Direct holding	▾
Sep 21, 2026	Lang Scott A. President and CEO · Director	Sale	$1.20M 15,000 shares sold	36.17% sold Direct holding	▾
Sep 10, 2026	Martin Heather Chief Marketing Officer · Chief of Staff	Sale	$679.00K 8,064 shares sold	23.17% sold Direct holding	▾
Sep 10, 2026	DANIELS LESLIE B Director	Sale	$209.57K 2,500 shares sold	5.44% sold Direct holding	▾
Sep 8, 2026	Ashe Gena L Chief Legal Officer & Corp Sec	Sale	$25.03K 293 shares sold	Unavailable Direct holding	▾
Sep 8, 2026	Ashe Gena L Chief Legal Officer & Corp Sec	Sale	$347.23K 4,064 shares sold	Unavailable Direct holding	▾
Sep 4, 2026	DANIELS LESLIE B Director	Sale	$357.00K 4,100 shares sold	8.19% sold Direct holding	▾
Sep 3, 2026	DANIELS LESLIE B Director	Sale	$522.90K 6,000 shares sold	10.70% sold Direct holding	▾
Aug 25, 2026	Guttman-McCabe Christopher Chief Reg & Comm Officer	Sale	$2.16M 23,439 shares sold	34.31% sold Direct holding	▾
Aug 24, 2026	Kuhn Thomas R. Director · Executive Chairman	Sale	$888.53K 10,000 shares sold	36.06% sold Direct holding	▾

Showing 19 / 19 record groups in 2026. The complete set is available through the API.

Anterix Inc. · ATEX

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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 19 of 19 purchase / sale groups and 30 of 49 other groups; the totals and the monthly series cover the whole window.

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

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Sources, coverage & how to read this data

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.