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
-$1,096,548
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% $26,786,384 1,533,279 Global Alpha Capital Management Ltd. 31 Dec 2024
DIMENSIONAL FUND ADVISORS LP 5.6% $14,797,929 847,048 Dimensional Fund Advisors LP 31 Dec 2024
BlackRock, Inc. 4.9% $13,190,007 755,009 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 11,220 $256,000 -$37,500 $22.80 5
2025 Q3 9,124,712 $136,667,923 -$1,096,548 $14.97 104
2025 Q2 9,194,673 $149,485,095 -$2,046,575 $16.25 99
2025 Q1 9,301,942 $188,977,175 -$1,105,577 $20.31 105
2024 Q4 9,431,386 $158,601,374 -$9,434,106 $16.81 102
2024 Q3 9,698,354 $313,715,609 -$2,140,169 $32.34 119
2024 Q2 9,615,473 $219,302,746 -$13,045,316 $22.80 119
2024 Q1 9,949,962 $313,585,535 -$9,307,820 $31.50 127
2023 Q4 10,159,986 $396,890,470 +$1,471,174 $38.97 112
2023 Q3 10,140,441 $320,961,424 -$4,562,055 $31.56 109
2023 Q2 10,325,258 $377,997,099 -$1,566,225 $36.60 115
2023 Q1 10,325,577 $422,488,338 +$2,299,210 $40.92 117
2022 Q4 10,321,036 $467,757,065 -$3,470,368 $45.31 125
2022 Q3 10,421,669 $402,033,620 -$2,346,415 $38.57 121
2022 Q2 10,445,477 $490,048,749 +$17,844,127 $46.91 118
2022 Q1 10,145,880 $404,584,343 -$164,894 $39.88 113
2021 Q4 10,142,314 $405,290,946 -$11,192,216 $39.95 107
2021 Q3 10,232,596 $479,409,098 -$6,340,613 $46.85 115
2021 Q2 10,371,365 $471,852,801 -$9,782,240 $45.49 113
2021 Q1 10,579,332 $519,727,352 +$8,870,598 $49.12 109
2020 Q4 10,421,336 $435,334,072 -$4,470,646 $41.76 117
2020 Q3 10,525,315 $527,829,004 -$13,943,535 $50.14 122
2020 Q2 10,766,786 $652,086,626 +$11,425,120 $60.57 125
2020 Q1 10,585,774 $621,695,485 -$86,768 $58.71 123
2019 Q4 10,590,776 $586,706,011 +$7,376,533 $55.39 126
2019 Q3 10,451,378 $610,148,299 +$287,312 $58.37 127
2019 Q2 10,456,296 $603,675,927 +$8,449,318 $57.73 125
2019 Q1 10,359,937 $584,871,166 +$5,417,029 $56.39 136
2018 Q4 10,223,994 $731,387,656 -$32,893,062 $71.53 148
2018 Q3 10,660,514 $787,538,866 -$4,228,292 $73.88 125
2018 Q2 10,737,560 $566,649,267 +$23,400,865 $52.77 122
2018 Q1 10,266,080 $612,134,110 +$14,870,641 $59.62 127
2017 Q4 10,029,146 $554,252,043 +$29,551,519 $55.26 128
2017 Q3 9,487,106 $499,959,281 -$15,001,521 $52.70 125
2017 Q2 9,727,748 $665,739,074 -$6,152,592 $68.44 128
2017 Q1 9,815,850 $691,226,196 +$113,345,676 $70.42 125
2016 Q4 9,675,040 $774,238,756 +$12,117,307 $80.13 129
2016 Q3 9,539,970 $620,125,221 +$4,041,070 $65.04 136
2016 Q2 9,473,051 $736,542,455 +$735,729,595 $77.81 145
2016 Q1 214 $15,867 -$1,325 $74.72 2
2015 Q4 181 $14,000 $77.35 1