What type of transfer was the 12,000-share movement reported by ATNI insider Cornelius B. Prior Jr.?

The 12,000-share transfer reported by Cornelius B. Prior Jr. is described as a bona fide gift. It represents a gift of 12,000 ATNI common shares from the reporting person to a non-profit entity, with no price paid.

ATN International insider gifts and sells ATNI shares

Q: What insider transactions did ATNI ten percent owner Cornelius B. Prior Jr. report?

Cornelius B. Prior Jr. reported a bona fide gift of 12,000 ATNI shares to a non-profit and sales totaling 7,000 shares in open-market transactions on August 10, 2026, through an associated entity.

Q: How many ATNI shares did Cornelius B. Prior Jr. sell in this Form 4 filing for ATNI?

Entities associated with Cornelius B. Prior Jr. sold 7,000 ATNI common shares on August 10, 2026. This includes 6,500 shares at a weighted average price of $32.4943 and an additional 500-share sale at $33.25.

Q: What price did the ATNI shares sell for in the reported insider transactions?

One block of 6,500 ATNI shares was sold at a weighted average price of $32.4943, in multiple trades between $32.10 and $33.00. Another 500 shares were sold at a price of $33.25 per share.

Q: Was the ATNI insider’s Form 4 trading done under a Rule 10b5-1 plan?

The Form 4 for ATNI indicates the Rule 10b5-1 checkbox is not marked as affirming a trading plan. The sales and gift on August 10, 2026 are therefore not disclosed as made under a Rule 10b5-1 plan in this filing.

ATN International, Inc. ten percent owner Cornelius B. Prior Jr. reported several changes in holdings of ATNI common stock.

Filing Impact

(Moderate)

Filing Sentiment

(Negative)How Sentiment works

Sentiment and the balance of points

Rhea-AI Sentiment reads the wording of the document, how positive or negative its language is on a 1 to 5 scale. The balance of points shown with the takes weighs what the document actually discloses, so the two can disagree, for example when a trial that missed its main goal is described in upbeat language.

How Sentiment works How the balance works

Form Type

Rhea-AI Filing Summary

ATN International, Inc. ten percent owner Cornelius B. Prior Jr. reported several changes in holdings of ATNI common stock. He made a bona fide gift of 12,000 shares to a non-profit entity and entities associated with him sold 7,000 shares in open-market transactions on August 10, 2026, including 6,500 shares at a weighted average price of $32.4943. Following these transactions, he holds 3,982,303 shares directly, plus indirect holdings including 500 shares held by his wife and 8,227 shares held by Tropical Aircraft Co.

Insider Trade Summary

Net Seller: 7,000 shares

Net Sell 5 txns

Insider PRIOR CORNELIUS B JR

Role 10% Owner

Sold 7,000 shs ($228K)

Type	Security	Shares	Price	Value
Gift	Common Stock ^F1	12,000	$0.00	$0.00
Sale	Common Stock ^F2	6,500	$32.4943	$211K
Sale	Common Stock	500	$33.25	$17K
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 3,982,303 shares (Direct); Common Stock — 66,936 shares (Indirect, By VI E-Cell Tropical Telecom Ltd); Common Stock — 500 shares (Indirect, By: Wife); Common Stock — 8,227 shares (Indirect, By Tropical Aircraft Co.)

Footnotes (2)

F1. Represents a bona fide gift of 12,000 shares from the reporting person to a non-profit entity.
F2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.10 to $33.00, inclusive. The reporting person undertakes to provide to ATN International, Inc., any security holder of ATN International, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

Key Figures

Shares gifted: 12,000 shares Shares sold: 7,000 shares Weighted average sale price: $32.4943 per share +4 more

7 metrics

Shares gifted 12,000 shares Bona fide gift of common stock to a non-profit entity

Shares sold 7,000 shares Total ATNI common shares sold on August 10, 2026 via VI E-Cell Tropical Telecom Ltd

Weighted average sale price $32.4943 per share Price for 6,500 shares sold in multiple transactions between $32.10 and $33.00

Additional sale price $33.25 per share Price for an additional 500 ATNI shares sold

Direct holdings after transactions 3,982,303 shares ATNI common shares held directly by Cornelius B. Prior Jr. following the gift

Indirect holdings by wife 500 shares ATNI common shares indirectly held by the reporting person through his wife

Indirect holdings by Tropical Aircraft Co. 8,227 shares ATNI common shares indirectly held through Tropical Aircraft Co.

Key Terms

bona fide gift, weighted average price, ten percent owner, indirect ownership

4 terms

bona fide gift financial

"Represents a bona fide gift of 12,000 shares from the reporting person"

A bona fide gift is a genuine, voluntary transfer of money, property, or benefits from one party to another made without expectation of repayment, services, or hidden conditions. Investors care because such gifts can affect company disclosures, related‑party transaction rules, tax treatment, and perceived conflicts of interest; think of it like someone giving you a present with no strings attached — but on a corporate scale, auditors and regulators need to verify it really is unconditional.

weighted average price financial

"The price reported in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

ten percent owner financial

"Reporting person is indicated as a ten percent owner of the issuer."

indirect ownership financial

"Indirect ownership noted as By VI E-Cell Tropical Telecom Ltd and other entities."

FAQ

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

What insider transactions did ATNI ten percent owner Cornelius B. Prior Jr. report?

Cornelius B. Prior Jr. reported a bona fide gift of 12,000 ATNI shares to a non-profit and sales totaling 7,000 shares in open-market transactions on August 10, 2026, through an associated entity.

How many ATNI shares did Cornelius B. Prior Jr. sell in this Form 4 filing for ATNI?

Entities associated with Cornelius B. Prior Jr. sold 7,000 ATNI common shares on August 10, 2026. This includes 6,500 shares at a weighted average price of $32.4943 and an additional 500-share sale at $33.25.

What price did the ATNI shares sell for in the reported insider transactions?

One block of 6,500 ATNI shares was sold at a weighted average price of $32.4943, in multiple trades between $32.10 and $33.00. Another 500 shares were sold at a price of $33.25 per share.

How many ATNI shares does Cornelius B. Prior Jr. own after these transactions?

After these transactions, Cornelius B. Prior Jr. directly holds 3,982,303 ATNI shares. He also reports indirect holdings of 500 shares held by his wife and 8,227 shares held by Tropical Aircraft Co., plus additional indirect holdings via VI E-Cell Tropical Telecom Ltd.

Was the ATNI insider’s Form 4 trading done under a Rule 10b5-1 plan?

The Form 4 for ATNI indicates the Rule 10b5-1 checkbox is not marked as affirming a trading plan. The sales and gift on August 10, 2026 are therefore not disclosed as made under a Rule 10b5-1 plan in this filing.

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

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Available on EDGAR 08/12/2026 - 07:21 PM Accepted by SEC EDGAR 08/12/2026 - 07:21 PM

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^*

PRIOR CORNELIUS B JR

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/10/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	08/10/2026		G		12,000	D	$0⁽¹⁾	3,982,303	D
Common Stock	08/10/2026		S		6,500	D	$32.4943⁽²⁾	67,436	I	By VI E-Cell Tropical Telecom Ltd
Common Stock	08/10/2026		S		500	D	$33.25	66,936	I	By VI E-Cell Tropical Telecom Ltd
Common Stock								500	I	By: Wife
Common Stock								8,227	I	By Tropical Aircraft Co.

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. Represents a bona fide gift of 12,000 shares from the reporting person to a non-profit entity.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.10 to $33.00, inclusive. The reporting person undertakes to provide to ATN International, Inc., any security holder of ATN International, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

	/s/ Andy Fienberg , Attorney-in-Fact	08/12/2026
	** 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)

Source: View Original Filing on SEC EDGAR