Anterix Inc. (ATEX) CFO reports 231 shares withheld for tax obligations

Rhea-AI Filing Summary

Anterix Inc. Chief Financial Officer Elena Marquez reported a tax-related share disposition. On 2026-07-13, 231 shares of common stock were withheld by the issuer at $100.96 per share to satisfy withholding obligations tied to partial vesting and settlement of restricted stock units. Following this non-market, tax-withholding disposition, Marquez holds 18,156 shares of Anterix common stock directly.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Marquez Elena

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	231	$100.96	$23K

Holdings After Transaction: Common Stock — 18,156 shares (Direct)

Footnotes (1)

1. [object Object]

Key Figures

Shares withheld for taxes: 231 shares Price per withheld share: $100.96 per share Shares held after transaction: 18,156 shares +1 more

4 metrics

Shares withheld for taxes 231 shares Common stock withheld on 2026-07-13 to satisfy tax obligations on RSU vesting

Price per withheld share $100.96 per share Valuation used for the 231-share tax-withholding disposition

Shares held after transaction 18,156 shares Directly held Anterix common stock by CFO Elena Marquez following the withholding

Transaction date 2026-07-13 Date of the tax-withholding disposition of common stock

Key Terms

restricted stock units, withholding obligations, tax-withholding disposition

3 terms

restricted stock units financial

"in connection with the partial vesting and settlement of restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

withholding obligations financial

"shares were withheld by the Issuer to satisfy withholding obligations"

tax-withholding disposition financial

"transaction_action": "tax-withholding disposition""

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/14/2026 - 04:11 PM Accepted by SEC EDGAR 07/14/2026 - 04:10 PM Learn about SEC filing dates

FAQ

What did Anterix (ATEX) CFO Elena Marquez report in this insider transaction?

Anterix (ATEX) CFO Elena Marquez reported that 231 shares of common stock were withheld on 2026-07-13 to cover tax obligations from partially vested restricted stock units, leaving her with 18,156 directly held shares after the transaction.

Was the Anterix (ATEX) CFO’s reported transaction an open-market sale of shares?

No. The filing shows an F-code tax-withholding disposition, meaning 231 shares were withheld by Anterix to satisfy tax obligations on restricted stock unit vesting, rather than being sold on the open market for discretionary liquidity.

How many Anterix (ATEX) shares does CFO Elena Marquez hold after the tax withholding?

After the tax-withholding disposition, CFO Elena Marquez directly holds 18,156 shares of Anterix common stock. This figure reflects her position immediately following the withholding of 231 shares related to the settlement of restricted stock units.

At what price were the withheld Anterix (ATEX) shares valued in the CFO’s Form 4?

The 231 withheld shares were valued at $100.96 per share. This price applies to the tax-withholding disposition reported for Anterix CFO Elena Marquez in connection with the vesting and settlement of her restricted stock units.

What triggered the tax-withholding disposition reported for Anterix (ATEX) CFO Elena Marquez?

The tax-withholding disposition was triggered by the partial vesting and settlement of restricted stock units. To satisfy related withholding obligations, Anterix retained 231 shares of common stock instead of delivering them all to CFO Elena Marquez.

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^*

Marquez Elena

(Last) (First) (Middle)

3 GARRET MOUNTAIN PLAZA, SUITE 401

(Street)

WOODLAND PARK NEW JERSEY 07424

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/13/2026

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	07/13/2026		F		231(1)	D	$100.96	18,156	D

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 were withheld by the Issuer to satisfy withholding obligations in connection with the partial vesting and settlement of restricted stock units.

Remarks:

	/s/ Gena L. Ashe, Attorney-in-Fact	07/14/2026
	** 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)