# EDGAR Filing Document

**Accession Number:** 0001304492
**File Stem:** 0002090798-25-000002
**Filing Date:** 2025-11
**Character Count:** 7989
**Document Hash:** 587e956a21b87d6ba5516ab02dc735a0
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0002090798-25-000002.hdr.sgml**: 20251104

**ACCESSION NUMBER**: 0002090798-25-000002

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 4

**CONFORMED PERIOD OF REPORT**: 20250917

**FILED AS OF DATE**: 20251104

**DATE AS OF CHANGE**: 20251104

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Martin Heather
- **CENTRAL INDEX KEY:** 0002090798

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-36827
- **FILM NUMBER:** 251451196

**MAIL ADDRESS:**
- **STREET 1:** 3 GARRET MOUNTAIN PLAZA
- **STREET 2:** SUITE 401
- **CITY:** WOODLAND PARK
- **STATE:** NJ
- **ZIP:** 07424
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Anterix Inc.
- **CENTRAL INDEX KEY:** 0001304492
- **STANDARD INDUSTRIAL CLASSIFICATION:** TELEPHONE COMMUNICATIONS (NO RADIO TELEPHONE) [4813]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 330745043
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0331

**BUSINESS ADDRESS:**
- **STREET 1:** 3 GARRET MOUNTAIN PLAZA
- **STREET 2:** SUITE 401
- **CITY:** WOODLAND PARK
- **STATE:** NJ
- **ZIP:** 07424
- **BUSINESS PHONE:** (973) 771-0300

**MAIL ADDRESS:**
- **STREET 1:** 3 GARRET MOUNTAIN PLAZA
- **STREET 2:** SUITE 401
- **CITY:** WOODLAND PARK
- **STATE:** NJ
- **ZIP:** 07424

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** pdvWireless, Inc.
- **DATE OF NAME CHANGE:** 20151105

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Pacific DataVision, Inc.
- **DATE OF NAME CHANGE:** 20140616

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Pacific Data Vision
- **DATE OF NAME CHANGE:** 20040928

## Ex-24

![](powerofattorney001.jpg)

POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes and appoints Gena L. Ashe, Tim Gray and Robert Schwartz, and each of them individually, the undersigned's true and lawful attorney-in-fact to: (1) execute for and on behalf of the undersigned a Form ID (including amendments thereto), or any other forms prescribed by the Securities and Exchange Commission, that may be necessary to obtain codes and passwords enabling the undersigned to make electronic filings with the Securities and Exchange Commission of the forms referenced in clause (2) below; (2) execute for and on behalf of the undersigned, in the undersigned's capacity as an officer, director and/or 10% or greater stockholder of Anterix Inc. (the "Company"), any and all Form 3, 4 and 5 reports required to be filed by the undersigned in accordance with Section 16(a) of the Securities Exchange Act of 1934 and the rules thereunder and Rule 144 under the Securities Act of 1933; (3) do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such Forms 3, 4, 5 or 144 and timely file such report with the United States Securities and Exchange Commission and any stock exchange or similar authority; and (4) take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned, pursuant to this Power of Attorney, shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in his discretion. The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform each and every act and thing whatsoever requisite, necessary, and proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or his substitute or substitutes, shall lawfully do or cause to be done by virtue of this Power of Attorney and the rights and powers herein granted. The undersigned acknowledges that no such attorney-in-fact, in serving in such capacity at the request of the undersigned, is hereby assuming, nor is the Company hereby assuming, any of the undersigned's responsibilities to comply with Section 16 of the Securities Exchange Act of 1934, as amended. This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4, 5, and 144 with respect to the undersigned's holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact. [SIGNATURES FOLLOW ON THE NEXT PAGE]

------

![](powerofattorney002.jpg)

&nbsp;&nbsp;&nbsp;&nbsp;IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 11th day of September 2025. s/Heather Martin Heather Martin

------

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Martin Heather<br><sub>(Last) (First) (Middle)</sub><br>3 GARRET MOUNTAIN PLAZA, SUITE 401<br><sub>(Street)</sub><br>WOODLAND PARK, NJ 07424<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Anterix Inc. [ ATEX ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2025-09-17 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [ ] 10% Owner<br>[X] Officer (give title below)   [X] Other (specify below)<br>_Chief Marketing Officer_ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |
| Common Stock | 34578<sup>(1)</sup> | D |  |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |

---

### Footnotes:

(1) The Restricted Stock Units will west in 3 equal installments beginning on September 9, 2026.

**Signature:** /s/ Gena L. Ashe, Attorney-in-Fact  
**Date:** 2025-11-04

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**