ATN International (NASDAQ: ATNI) CEO has 1,237 shares withheld for taxes

Rhea-AI Filing Summary

ATN International, Inc. chief executive officer Brad W. Martin reported a routine tax-related share disposition. On the vesting of previously granted restricted stock units, the company withheld 1,237 shares of common stock at $27.92 per share to cover his tax obligations. After this withholding, Martin directly holds 126,129 shares of ATN International common stock, indicating this was a relatively small, non-market transaction tied to compensation rather than an open-market trade.

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

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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^*

Martin Brad W

(Last) (First) (Middle)

C/O ATN INTERNATIONAL, INC.

500 CUMMINGS CENTER

(Street)

BEVERLY MASSACHUSETTS 01915

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
ATN International, Inc. [ ATNI ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/25/2026

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	03/25/2026		F(1)		1,237	D	$27.92	126,129	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. Represents shares withheld by the Company for payment of Mr. Martin's tax obligations arising from the vesting of previously granted Restricted Stock Units.

	/s/ Brad W. Martin	03/27/2026
	** 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)

FAQ

What insider transaction did ATNI CEO Brad Martin report on this Form 4?

Brad W. Martin reported a tax-related share disposition. The company withheld 1,237 ATN International common shares upon RSU vesting to pay his tax obligations, rather than executing an open-market sale.

Was the ATNI CEO’s Form 4 transaction an open-market sale of shares?

No, the transaction was not an open-market sale. ATN International withheld 1,237 shares from Brad Martin when his restricted stock units vested to satisfy tax obligations owed on that compensation.

How many ATNI shares were withheld from the CEO for taxes and at what price?

ATN International withheld 1,237 common shares from CEO Brad Martin for tax obligations. The shares were valued at $27.92 per share in this transaction, according to the reported Form 4 filing details.

How many ATNI shares does CEO Brad Martin hold after this Form 4 transaction?

Following the tax-withholding disposition, Brad Martin directly holds 126,129 shares of ATN International common stock. This shows the withheld 1,237 shares are small compared with his remaining direct equity position in the company.

What triggered the ATNI tax-withholding transaction reported on the Form 4?

The tax-withholding transaction was triggered by the vesting of previously granted restricted stock units. When those ATN International RSUs vested, the company withheld 1,237 shares from CEO Brad Martin to cover associated tax liabilities.