Anterix Inc. (ATEX) director awarded 1,598 shares vesting in 2027

Rhea-AI Filing Summary

Heard William reported acquisition or exercise transactions in this Form 4 filing.

Anterix Inc. director William Heard received a grant of 1,598 shares of Common Stock on August 4, 2026 at no cost. These restricted shares will vest on the earlier of the 2027 annual meeting of shareholders and August 4, 2027, under a Restricted Stock Agreement. Following the award, he directly holds 11,252 shares. A separate reported position shows 1,716,738 shares held by investment funds or accounts managed by Heard Capital LLC, for which he is the ultimate beneficial owner; both he and Heard Capital LLC disclaim beneficial ownership of those shares except to the extent of any pecuniary interest.

Insider Trade Summary

Net Buyer: 1,598 shares

Net Buy 2 txns

Insider Heard William

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, par value $0.0001 per share ("Common Stock") F1	1,598	$0.00	$0.00
holding	Common Stock F2	--	--	--

Holdings After Transaction: Common Stock, par value $0.0001 per share ("Common Stock") — 11,252 shares (Direct); Common Stock — 1,716,738 shares (Indirect, By Heard Capital LLC)

Footnotes (2)

1. 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.
2. 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. /

Key Figures

Restricted stock grant: 1598 shares Grant price per share: 0.0000 Direct holdings after grant: 11252 shares +2 more

5 metrics

Restricted stock grant 1598 shares Shares of Common Stock granted to director William Heard on August 4, 2026

Grant price per share 0.0000 Reported per-share price for the 1,598-share restricted stock award

Direct holdings after grant 11252 shares Direct Anterix Common Stock owned by William Heard following the award

Indirect holdings via Heard Capital LLC 1716738 shares Shares held by investment funds/accounts for which Heard Capital LLC is investment manager

Latest vesting date August 4, 2027 Restricted shares vest on earlier of 2027 annual meeting and August 4, 2027

Key Terms

Restricted Stock Agreement, pecuniary interest, Section 16 of the Securities Exchange Act of 1934

3 terms

Restricted Stock Agreement financial

"subject to the terms of the Restricted Stock Agreement."

pecuniary interest financial

"disclaims beneficial ownership of the securities ... except to the extent of his or its pecuniary interest"

Section 16 of the Securities Exchange Act of 1934 regulatory

"disclaims beneficial ownership of the securities to which this filing relates for purposes of Section 16 of the Securities Exchange Act of 1934"

A provision of federal securities law that requires company insiders—directors, officers and large shareholders—to publicly report their stock holdings and trades and to surrender any “short-swing” profits from purchases and sales within a six-month window. It acts like a rule that forces leaders to announce their trades and prevents quick buy-sell windfalls, giving investors transparency into insider activity and reducing opportunities for unfair gain.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/06/2026 - 04:51 PM Accepted by SEC EDGAR 08/06/2026 - 04:51 PM Learn about SEC filing dates

FAQ

What stock award did Anterix (ATEX) director William Heard receive?

William Heard received a grant of 1,598 shares of Anterix Common Stock at no cost. The shares are restricted and will vest under the terms of a Restricted Stock Agreement tied to the company’s 2027 annual shareholder meeting or August 4, 2027.

When will William Heard’s 1,598 Anterix (ATEX) restricted shares vest?

The 1,598 restricted shares will vest on the earlier of the 2027 annual meeting of shareholders and August 4, 2027. Vesting is conditioned on the terms of the company’s Restricted Stock Agreement governing this award.

How many Anterix (ATEX) shares does William Heard hold directly after this grant?

After the grant, William Heard directly holds 11,252 shares of Anterix Common Stock. This figure reflects his personal direct ownership position reported after receiving the 1,598-share restricted stock award on August 4, 2026.

What indirect Anterix (ATEX) holdings are associated with Heard Capital LLC?

Investment funds and accounts managed by Heard Capital LLC hold 1,716,738 Anterix shares. William Heard is the ultimate beneficial owner of Heard Capital LLC, but both disclaim beneficial ownership of these shares except to the extent of their pecuniary interest.

Is William Heard’s Anterix (ATEX) stock grant tied to a Rule 10b5-1 plan?

No. The Rule 10b5-1 trading plan checkbox for this insider report is not marked, indicating the reported stock grant was not designated as executed under a Rule 10b5-1 pre-arranged trading plan.

Does William Heard claim full beneficial ownership of Anterix (ATEX) shares held via Heard Capital LLC?

No. For the 1,716,738 shares held by funds and accounts managed by Heard Capital LLC, both Heard Capital LLC and William Heard disclaim beneficial ownership except to the extent of any pecuniary interest in those securities.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Heard William

(Last) (First) (Middle)

C/O HEARD CAPITAL LLC

1 N. WACKER DRIVE, SUITE 3650

(Street)

CHICAGO ILLINOIS 60606

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Anterix Inc. [ ATEX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/04/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, par value $0.0001 per share ("Common Stock")	08/04/2026		A		1,598(1)	A	$0	11,252	D
Common Stock								1,716,738	I	By Heard Capital LLC(2)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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.

2. 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. /

Remarks:

	/s/ Gena Ashe, Attorney-in-Fact	08/05/2026
	** Signature of Reporting Person	Date
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.
* Form 4: SEC 1474 (03-26)