Anterix CFO reports 271-share tax withholding

Anterix Inc. Chief Financial Officer Elena Marquez reported a small, routine tax-withholding transaction.

Accepted by SEC EDGAR 05/19/2026 - 09:29 AM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Anterix Inc. Chief Financial Officer Elena Marquez reported a small, routine tax-withholding transaction. On the disposition date, 271 shares of common stock were withheld by the company at $56.62 per share to satisfy tax obligations tied to a partial vesting of a restricted stock unit award. After this non-market transaction, she directly holds 17,758 shares of Anterix common stock.

Insider Trade Summary

Exercise Price or Tax Liability: 271 shares

Exercise Price or Tax Liability 1 txn

Insider Marquez Elena

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	271	$56.62	$15K

Holdings After Transaction: Common Stock — 17,758 shares (Direct)

Holdings Before and After: Common Stock, 18,029 to 17,758 shares (Direct)

Footnotes (1)

1. F1. The shares were withheld by the Issuer to satisfy withholding obligations in connection with the partial vesting and settlement of restricted stock unit.

Key Figures

Tax-withheld shares: 271 shares Withholding price: $56.62 per share Post-transaction holdings: 17,758 shares

3 metrics

Tax-withheld shares 271 shares Shares withheld to satisfy tax obligations on RSU vesting

Withholding price $56.62 per share Value applied to withheld Anterix common stock

Post-transaction holdings 17,758 shares CFO direct Anterix common stock after withholding

Key Terms

restricted stock unit, tax-withholding disposition, Form 4, Common Stock

4 terms

restricted stock unit financial

"partial vesting and settlement of restricted stock unit"

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

tax-withholding disposition financial

"tax-withholding disposition of 271 shares to satisfy obligations"

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.

Form 4 regulatory

"reported a Form 4 tax-withholding of 271 shares"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

Common Stock financial

"271 shares of common stock were withheld"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

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

Anterix reported that CFO Elena Marquez had 271 shares of common stock withheld to cover tax obligations from a partial vesting of a restricted stock unit award, a routine non-market transaction disclosed on Form 4.

Did the Anterix (ATEX) CFO sell shares on the open market in this Form 4?

No, the Form 4 shows a tax-withholding disposition only. The 271 shares were withheld by Anterix to satisfy tax obligations related to restricted stock unit vesting, not sold in an open-market transaction.

How many Anterix (ATEX) shares were involved in the tax withholding?

The filing shows 271 shares of Anterix common stock were withheld. These shares were used to satisfy withholding obligations arising from the partial vesting and settlement of a restricted stock unit award granted to the CFO.

What price per share was used for the Anterix (ATEX) tax-withholding shares?

The withheld shares were valued at $56.62 per share. This price was applied to the 271 shares used to cover tax obligations connected to the partial vesting of the restricted stock unit award.

How many Anterix (ATEX) shares does the CFO hold after this Form 4 transaction?

After the tax-withholding transaction, CFO Elena Marquez directly holds 17,758 shares of Anterix common stock. This post-transaction balance reflects her remaining equity position following the 271-share withholding for tax purposes.

What does the F transaction code mean in the Anterix (ATEX) Form 4?

The F code indicates a tax-withholding disposition. In this Anterix filing, it shows the issuer withheld 271 shares to satisfy tax obligations linked to the vesting and settlement of a restricted stock unit award for the CFO.

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

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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)
05/15/2026

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	05/15/2026		F		271(1)	D	$56.62	17,758	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 unit.

Remarks:

	/s/ Gena L. Ashe, Attorney-in-Fact	05/19/2026
	** 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)