ATN International SVP has 560 shares withheld

ATN International, Inc. senior vice president of corporate development Justin M. Leon reported a small, routine tax-withholding event.

Rhea-AI Filing Summary

ATN International, Inc. senior vice president of corporate development Justin M. Leon reported a small, routine tax-withholding event. On the vesting of previously granted restricted stock units, the company withheld 560 shares of common stock at $27.92 per share to cover his tax obligation. Following this disposition, Leon directly holds 49,707 shares of ATN International common stock. This was not an open‑market sale but an administrative share withholding tied to equity compensation.

Insider Trade Summary

Exercise Price or Tax Liability: 560 shares

Exercise Price or Tax Liability 1 txn

Insider Leon Justin M

Role SVP, CORPORATE DEVELOPMENT

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	560	$27.92	$16K

Holdings After Transaction: Common Stock — 49,707 shares (Direct)

Footnotes (1)

1. F1. Represents shares withheld by the Company for payment of Mr. Leon's tax obligation arising from the vesting of previously granted Restricted Stock Units.

FAQ

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

What did ATN International (ATNI) executive Justin M. Leon report in this Form 4?

Justin M. Leon, SVP of corporate development at ATN International, reported a tax-withholding disposition of 560 shares. The company withheld these shares to pay taxes triggered by the vesting of previously granted restricted stock units.

How many ATN International shares were involved in Justin M. Leon’s March 25, 2026 transaction?

The Form 4 shows 560 shares of ATN International common stock were withheld. These shares were taken by the company at a price of $27.92 per share to satisfy Leon’s tax obligation from restricted stock unit vesting.

Was Justin M. Leon’s ATN International Form 4 transaction an open-market sale?

No, the filing describes a tax-withholding disposition, not an open-market sale. The company withheld 560 shares to cover taxes arising from the vesting of previously granted restricted stock units, a common administrative feature of equity compensation.

How many ATN International shares does Justin M. Leon hold after this Form 4 transaction?

After the tax-withholding event, Justin M. Leon directly holds 49,707 shares of ATN International common stock. This indicates the 560 shares withheld for taxes represent a relatively small portion of his overall reported share position.

What price per share was used for the ATN International tax-withholding on Justin M. Leon’s RSUs?

The company valued the withheld shares at $27.92 per share for the tax-withholding disposition. This price was applied to the 560 shares withheld to satisfy Justin M. Leon’s tax obligation from the vesting of restricted stock units.

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

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Accepted by SEC EDGAR 03/27/2026 - 05:23 PM EDT Learn about SEC filing dates

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
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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^*

Leon Justin M

(Last) (First) (Middle)

500 CUMMINGS CENTER

SUITE 2450

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, CORPORATE DEVELOPMENT

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)		560	D	$27.92	49,707	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. Leon's tax obligation arising from the vesting of previously granted Restricted Stock Units.

	/s/ Justin M. Leon	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)