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Livermore
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ATN International, Inc.

ATNI
Exchange
Nasdaq
Industry
Telephone Communications (No Radiotelephone)
SEC CIK
0000879585

In the last 90 days, ATN International, Inc. insiders filed 0 open-market purchases and 12 sales; 133 institutions reported holding it in 13F filings for Q2 2026, worth $252.0M in total; no superinvestor holds it.

Holders of 5% or more of ATNI

Holders whose latest Schedule 13D or 13G filing reports 5% or more of ATN International, Inc., largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of ATNI
HolderLatest formStakeChangeFirst filedLatest filingFiling
Prior Cornelius B Jr13D/A28.96%4.45M shares–Jun 15, 20261 filingJun 15, 2026SEC
Global Alpha Capital Management Ltd.13G/A10.10%1.53M shares–Jan 6, 20251 filingJan 6, 2025SEC
Dimensional Fund Advisors LP13G/A5.60%847.0K shares–Jan 23, 20251 filingJan 23, 2025SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

4 Schedule 13D and 13G filings on ATN International, Inc., newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on ATNI
Filed (ET)FilerFormStakeChangeEvent dateFiling
Jun 15, 20269:56 PM ETPrior Cornelius B Jr13D/A28.96%4.45M shares–Apr 20, 2026SEC
Apr 29, 20257:35 AM ETBlackRock, Inc.13G/A4.90%755.0K shares–Below 5%Mar 31, 2025SEC
Jan 23, 20253:55 PM ETDimensional Fund Advisors LP13G/A5.60%847.0K shares–Dec 31, 2024SEC
Jan 6, 20256:38 PM ETGlobal Alpha Capital Management Ltd.13G/A10.10%1.53M shares–Dec 31, 2024SEC

Form 144: proposed insider sales

Notices from officers, directors and other affiliates planning to sell ATN International, Inc. shares.

No Form 144 notices for ATN International, Inc. are on file.