Elena Marquez - 29 Sep 2025 Form 4 Insider Report for Anterix Inc. (ATEX)

Role: Chief Financial Officer
Signature: /s/ Gena L. Ashe, Attorney-in-Fact
Issuer symbol: ATEX
Transactions as of: 29 Sep 2025
Net transactions value: -$9,110
Form type: 4
Filing time: 04 Nov 2025, 19:15:31 UTC
Previous filing: 04 Nov 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Marquez Elena	Chief Financial Officer	3 GARRET MOUNTAIN PLAZA, SUITE 401, WOODLAND PARK	/s/ Gena L. Ashe, Attorney-in-Fact	04 Nov 2025	0002090789

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ATEX	Common Stock	Award	$0	+11,405	+162%	$0.000000	18,433	29 Sep 2025	Direct	F1
transaction	ATEX	Common Stock	Tax liability	$9,110	-404	-2.2%	$22.55	18,029	04 Oct 2025	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents the issuance of restricted stock units (the "RSUs"). 1/3 of the units vest on September 29, 2026, with the remaining RSUs vesting in 2 equal annual installments thereafter.
F2	The shares were withheld by the Issuer to satisfy withholding obligations in connection with the partial vesting and settlement of restricted stock units.