ATN INTERNATIONAL INC (ATNI) Institutional Selling Activity

Several institutional investors tracked by InsiderSet reduced exposure to ATN INTERNATIONAL INC (ATNI) during the quarter ended March 31, 2026 based on sequential SEC Form 13F filings.

The largest disclosed institutional seller of ATNI during the latest reporting period reduced its reported position by approximately $1.31M based on quarter-end filing values.

Institutional selling activity may reflect profit-taking, sector rotation, portfolio rebalancing, or changing conviction levels among major investment firms. InsiderSet tracks quarter-over-quarter holding reductions, full exits, estimated value changes, and historical selling activity using publicly disclosed SEC filing data.

The investors covered on this page collectively reduced approximately $2.04M in reported ATNI exposure during the latest filing period, although many institutional holders continue to maintain significant long-term ownership positions in ATN INTERNATIONAL INC.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Renaissance Technologies LLCSell-6,324337,735$9,193,147
Q4 2025Renaissance Technologies LLCSell-1,973344,059$7,844,545
Q3 2025Renaissance Technologies LLCSell-17,800346,032$5,180,099
Q2 2025Renaissance Technologies LLCSell-3,900363,832$5,912,270
Q4 2024Renaissance Technologies LLCSell-7,168351,532$5,909,253
Q3 2024Renaissance Technologies LLCSell-40,400358,700$11,600,358
Q2 2024Renaissance Technologies LLCSell-1,900399,100$9,099,480
Q4 2023Renaissance Technologies LLCSell-11,700392,600$15,300
Q3 2023Renaissance Technologies LLCSell-23,300404,300$12,760
Q4 2022Renaissance Technologies LLCSell-30,800421,300$19,089
Q3 2022Renaissance Technologies LLCSell-43,800452,100$17,437
Q1 2022Renaissance Technologies LLCSell-12,100494,400$19,717
Q4 2021Renaissance Technologies LLCSell-20,800506,500$20,235
Q3 2021Renaissance Technologies LLCSell-7,900527,300$24,704
Q2 2021Renaissance Technologies LLCSell-13,900535,200$24,346
Q1 2021Renaissance Technologies LLCSell-49,000549,100$26,972
Q4 2020Renaissance Technologies LLCSell-18,700598,100$24,977
Q4 2020Third Avenue ManagementSell-12,16660,261$2,517
Q3 2020Renaissance Technologies LLCSell-14,800616,800$30,926
Q2 2020Third Avenue ManagementSell-36,57572,427$4,387
Q2 2020Renaissance Technologies LLCSell-9,300631,600$38,256
Q1 2020Third Avenue ManagementSell-27,393109,002$6,400
Q1 2020Renaissance Technologies LLCSell-15,300640,900$37,627
Q4 2019Renaissance Technologies LLCSell-44,300656,200$36,347
Q4 2016Renaissance Technologies LLCSell-14,301389,400$31,203

Frequently asked questions about ATNI activity

  • Which institutional owners are buying ATNI?

    Institutional owners buying ATNI include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in ATNI activity?

    "Buy" means an investor increased their reported position in ATNI compared to the prior reporting period. This reflects growing exposure to ATN INTERNATIONAL INC (ATNI) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in ATNI increasing?

    Institutional interest in ATNI can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

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