ATN International, Inc. - Common Stock (ATNI) Institutional Ownership

13F Institutional Holders and Ownership History from Q4 2015 to Q4 2025

Type / Class
Equity / Common Stock
Symbol
ATNI on Nasdaq
Shares outstanding
15,408,347
Price per share
$22.80
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
9,124,712
Total reported value
$136,667,923
% of total 13F portfolios
0%
Share change
-66,448
Value change
-$1,096,551
Number of holders
104
Price from insider filings
$22.80
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of ATN International, Inc. - Common Stock (ATNI) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Global Alpha Capital Management Ltd. 10% $27,338,365 1,533,279 Global Alpha Capital Management Ltd. 31 Dec 2024
DIMENSIONAL FUND ADVISORS LP 5.6% $15,102,866 847,048 Dimensional Fund Advisors LP 31 Dec 2024
BlackRock, Inc. 4.9% $13,461,810 755,009 BlackRock, Inc. 31 Mar 2025

As of 30 Sep 2025, 104 institutional investors reported holding 9,124,712 shares of ATN International, Inc. - Common Stock (ATNI). This represents 59% of the company’s total 15,408,347 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of ATN International, Inc. - Common Stock (ATNI) together control 52% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
Global Alpha Capital Management Ltd. 10% 1,559,298 -1.5% 1.3% $23,342,691
BlackRock, Inc. 5.8% 899,243 -0.77% 0% $13,461,667
DIMENSIONAL FUND ADVISORS LP 5.3% 812,871 -2.9% 0% $12,168,887
BROWN BROTHERS HARRIMAN & CO 4.3% 662,544 +5.6% 0.06% $9,918,284
VANGUARD GROUP INC 3.8% 588,802 -3.3% 0% $8,814,366
D. E. Shaw & Co., Inc. 2.8% 426,791 -1.4% 0.01% $6,389,062
AMERICAN CENTURY COMPANIES INC 2.6% 401,245 +3.8% 0% $6,006,638
RENAISSANCE TECHNOLOGIES LLC 2.2% 346,032 -4.9% 0.01% $5,180,099
GEODE CAPITAL MANAGEMENT, LLC 1.7% 255,287 +0.45% 0% $3,822,618
ACADIAN ASSET MANAGEMENT LLC 1.6% 241,675 -4.1% 0.01% $3,611,000
STATE STREET CORP 1.5% 231,908 +1.8% 0% $3,534,676
GABELLI FUNDS LLC 1.2% 188,700 -2.4% 0.02% $2,824,839
Invenomic Capital Management LP 1.2% 183,505 -5% 0.14% $2,747,070
MILLENNIUM MANAGEMENT LLC 0.99% 153,074 +9.2% 0% $2,291,518
BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.85% 131,210 +5.5% 0.04% $1,964,214
Ballast Asset Management, LP 0.82% 126,727 0.87% $1,897,103
Bank of New York Mellon Corp 0.75% 115,703 -1.9% 0% $1,732,068
MORGAN STANLEY 0.73% 113,063 -7.4% 0% $1,692,562
Universal- Beteiligungs- und Servicegesellschaft mbH 0.67% 103,800 -15% 0% $1,553,886
FMR LLC 0.6% 92,022 -0.57% 0% $1,377,569
Empowered Funds, LLC 0.58% 90,110 +0.43% 0.01% $1,348,947
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.57% 87,279 +3.5% 0% $1,306,567
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.55% 85,186 -27% 0% $1,275,234
NORTHERN TRUST CORP 0.53% 82,165 -6.9% 0% $1,230,011
GAMCO INVESTORS, INC. ET AL 0.5% 76,936 +9.6% 0.01% $1,151,732

Institutional Holders of ATN International, Inc. - Common Stock (ATNI) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 10,551 $240,563 -$27,555 $22.80 4
2025 Q3 9,124,712 $136,667,923 -$1,096,551 $14.97 104
2025 Q2 9,194,673 $149,485,095 -$2,046,576 $16.25 99
2025 Q1 9,301,942 $188,976,932 -$1,105,577 $20.31 105
2024 Q4 9,431,374 $158,600,994 -$9,434,300 $16.81 102
2024 Q3 9,698,354 $313,715,136 -$2,159,252 $32.34 119
2024 Q2 9,616,063 $219,316,544 -$13,104,858 $22.80 119
2024 Q1 9,949,963 $313,585,678 -$9,739,121 $31.50 127
2023 Q4 12,110 $471,927 -$8,106 $38.97 1
2023 Q3 10,094,555 $319,513,613 -$4,769,701 $31.56 108
2023 Q2 10,279,359 $376,316,787 -$1,567,272 $36.60 113
2023 Q1 10,237,822 $418,897,974 +$356,798 $40.92 114
2022 Q4 10,292,014 $466,442,829 -$2,573,000 $45.31 123
2022 Q3 10,152,877 $391,665,995 -$4,403,555 $38.57 116
2022 Q2 10,249,021 $480,831,683 +$14,129,174 $46.91 115
2022 Q1 10,090,624 $402,379,285 -$206,039 $39.88 110
2021 Q4 9,826,663 $392,680,658 -$10,523,535 $39.95 101
2021 Q3 10,155,316 $475,792,780 -$7,232,507 $46.85 113
2021 Q2 10,281,547 $467,771,022 -$9,751,567 $45.49 113
2021 Q1 10,517,851 $516,705,956 +$9,893,876 $49.12 110
2020 Q4 10,310,000 $430,683,097 -$2,880,143 $41.76 115
2020 Q3 10,384,479 $520,752,140 -$14,873,666 $50.14 120
2020 Q2 10,673,450 $646,414,896 +$11,734,504 $60.57 124
2020 Q1 10,448,032 $613,539,799 -$389,743 $58.71 119
2019 Q4 10,525,567 $583,098,170 +$6,299,478 $55.39 124
2019 Q3 10,405,688 $607,480,366 -$1,008,404 $58.37 126
2019 Q2 10,432,796 $602,322,121 +$19,282,838 $57.73 124
2019 Q1 10,344,101 $583,979,286 +$4,176,947 $56.39 133
2018 Q4 10,150,758 $726,150,315 -$36,254,612 $71.53 144
2018 Q3 10,659,194 $787,441,364 -$4,215,241 $73.88 124
2018 Q2 10,629,460 $560,945,229 +$31,836,533 $52.77 116
2018 Q1 10,220,772 $609,436,110 +$13,970,420 $59.62 123
2017 Q4 9,988,096 $551,984,043 +$31,462,764 $55.26 124
2017 Q3 9,414,370 $496,127,110 -$17,047,571 $52.70 122
2017 Q2 9,693,876 $663,419,723 -$6,434,042 $68.44 125
2017 Q1 9,813,340 $691,049,698 +$113,344,401 $70.42 124
2016 Q4 9,670,316 $773,860,756 +$12,326,990 $80.13 126
2016 Q3 9,538,398 $620,024,221 +$4,276,908 $65.04 134
2016 Q2 9,468,462 $736,186,323 +$733,590,451 $77.81 142
2016 Q1 214 $15,867 -$1,325 $74.72 2
2015 Q4 181 $14,000 $0 $77.35 1