Cornelius B. Prior Jr. - 06 Aug 2026 Form 4 Insider Report for ATN International, Inc. (ATNI)

Reporting relationship: 10%+ Owner
Issuer ticker: ATNI
Reported as of: 06 Aug 2026
Net transaction value: -$223,744
SEC form: 4
Accepted by SEC: 10 Aug 2026, 13:12:30 UTC
Prior SEC filing: 01 Jul 2026
Next SEC filing: 12 Aug 2026
Source filing: View source filing
Reporting owner signature: /s/ Andy Fienberg , Attorney-in-Fact

Key filing fact

Cornelius B. Prior Jr. filed Form 4 for ATN International, Inc. (ATNI) on 10 Aug 2026.

Key facts

This page summarizes Cornelius B. Prior Jr.'s Form 4 filing for ATN International, Inc. (ATNI).
15 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 10 Aug 2026, 13:12.

Change

Previous filing in this sequence was filed on 01 Jul 2026.
Current net transaction value: -$223,744.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0000922147 Primary reporting owner

PRIOR CORNELIUS B JR

Relationship: 10%+ Owner
Address: C/O ATN INTERNATIONAL, INC., 500 CUMMINGS CENTER, BEVERLY
Signature: /s/ Andy Fienberg , Attorney-in-Fact
Signature date: 10 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ATNI transaction

Common Stock

Sale

Transaction value: $14,378
Shares: -500
Change %: -0.61%
Price: $28.76
Shares after: 80,936
Date: 06 Aug 2026
Ownership: By VI E-Cell Tropical Telecom Ltd

ATNI transaction

Common Stock

Sale

Transaction value: $15,250
Shares: -500
Change %: -0.62%
Price: $30.50
Shares after: 80,436
Date: 06 Aug 2026
Ownership: By VI E-Cell Tropical Telecom Ltd

ATNI transaction

Common Stock

Sale

Transaction value: $14,398
Shares: -500
Change %: -0.62%
Price: $28.80
Shares after: 79,936
Date: 06 Aug 2026
Ownership: By VI E-Cell Tropical Telecom Ltd

ATNI transaction

Common Stock

Sale

Transaction value: $15,152
Shares: -500
Change %: -0.63%
Price: $30.30
Shares after: 79,436
Date: 06 Aug 2026
Ownership: By VI E-Cell Tropical Telecom Ltd

ATNI transaction

Common Stock

Sale

Transaction value: $15,150
Shares: -500
Change %: -0.63%
Price: $30.30
Shares after: 78,936
Date: 06 Aug 2026
Ownership: By VI E-Cell Tropical Telecom Ltd

ATNI transaction

Common Stock

Sale

Transaction value: $14,482
Shares: -500
Change %: -0.63%
Price: $28.96
Shares after: 78,436
Date: 06 Aug 2026
Ownership: By VI E-Cell Tropical Telecom Ltd

ATNI transaction

Common Stock

Sale

Transaction value: $15,150
Shares: -500
Change %: -0.64%
Price: $30.30
Shares after: 77,936
Date: 06 Aug 2026
Ownership: By VI E-Cell Tropical Telecom Ltd

ATNI transaction

Common Stock

Sale

Transaction value: $14,475
Shares: -500
Change %: -0.64%
Price: $28.95
Shares after: 77,436
Date: 06 Aug 2026
Ownership: By VI E-Cell Tropical Telecom Ltd

ATNI transaction

Common Stock

Sale

Transaction value: $15,175
Shares: -500
Change %: -0.65%
Price: $30.35
Shares after: 76,936
Date: 06 Aug 2026
Ownership: By VI E-Cell Tropical Telecom Ltd

ATNI transaction

Common Stock

Sale

Transaction value: $14,550
Shares: -500
Change %: -0.65%
Price: $29.10
Shares after: 76,436
Date: 06 Aug 2026
Ownership: By VI E-Cell Tropical Telecom Ltd

ATNI transaction

Common Stock

Sale

Transaction value: $15,125
Shares: -500
Change %: -0.65%
Price: $30.25
Shares after: 75,936
Date: 06 Aug 2026
Ownership: By VI E-Cell Tropical Telecom Ltd

ATNI transaction

Common Stock

Sale

Transaction value: $14,575
Shares: -500
Change %: -0.66%
Price: $29.15
Shares after: 75,436
Date: 06 Aug 2026
Ownership: By VI E-Cell Tropical Telecom Ltd

ATNI transaction

Common Stock

Sale

Transaction value: $15,175
Shares: -500
Change %: -0.66%
Price: $30.35
Shares after: 74,936
Date: 06 Aug 2026
Ownership: By VI E-Cell Tropical Telecom Ltd

ATNI transaction

Common Stock

Sale

Transaction value: $15,125
Shares: -500
Change %: -0.67%
Price: $30.25
Shares after: 74,436
Date: 06 Aug 2026
Ownership: By VI E-Cell Tropical Telecom Ltd

ATNI transaction

Common Stock

Sale

Transaction value: $15,585
Shares: -500
Change %: -0.67%
Price: $31.17
Shares after: 73,936
Date: 07 Aug 2026
Ownership: By VI E-Cell Tropical Telecom Ltd

ATNI holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 3,994,303
Date: 06 Aug 2026
Ownership: Direct

ATNI holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 500
Date: 06 Aug 2026
Ownership: By: Wife

ATNI holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 8,227
Date: 06 Aug 2026
Ownership: By Tropical Aircraft Co.

ATNI holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 363,424
Date: 06 Aug 2026
Ownership: Trustee of Revocable Trust

^* marks a reported price that did not pass the local price check.