William Heard - 04 Aug 2026 Form 4 Insider Report for Anterix Inc. (ATEX)

Reporting relationship: Director
Issuer ticker: ATEX
Reported as of: 04 Aug 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 06 Aug 2026, 16:51:04 UTC
Prior SEC filing: 07 Aug 2026
Source filing: View source filing
Reporting owner signature: /s/ Gena Ashe, Attorney-in-Fact

Key filing fact

William Heard filed Form 4 for Anterix Inc. (ATEX) on 06 Aug 2026.

Key facts

This page summarizes William Heard's Form 4 filing for Anterix Inc. (ATEX).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 06 Aug 2026, 16:51.

Change

Previous filing in this sequence was filed on 07 Aug 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002035875 Primary reporting owner

Heard William

Relationship: Director
Address: C/O HEARD CAPITAL LLC, 1 N. WACKER DRIVE, SUITE 3650, CHICAGO
Signature: /s/ Gena Ashe, Attorney-in-Fact
Signature date: 05 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ATEX transaction

Common Stock, par value $0.0001 per share ("Common Stock")

Award

Transaction value
Shares: +1,598
Change %: +17%
Price: $0.000000^*
Shares after: 11,252
Date: 04 Aug 2026
Ownership: Direct
Footnotes: F1

ATEX holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 1,716,738
Date: 04 Aug 2026
Ownership: By Heard Capital LLC
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

The Shares will vest on the earlier of the 2027 Annual Meeting of shareholders and August 4, 2027, subject to the terms of the Restricted Stock Agreement.

Footnote F2

These securities are held by certain investment funds and/or accounts for which Heard Capital LLC serves as investment manager. The Reporting Person is the ultimate beneficial owner of Heard Capital LLC. Each of Heard Capital LLC and the Reporting Person disclaims beneficial ownership of the securities to which this filing relates for purposes of Section 16 of the Securities and Exchange Act of 1934, as amended, except to the extent of his or its pecuniary interest therein. /