ATN International
Builds and operates fiber, tower, and broadband networks across underserved U.S. and island markets.
$30.48
After-hours close+0.29 (+0.96%)
At close$30.19(+1.68%)
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Breakdown13F · Form 4
Institutions 62.42%9.60M sharesInsiders 6.83%1.05M sharesOther 30.75%4.73M shares
Shares outstanding 15.38M · Float 9.87M · 64.2% free float
Institutions13F, as of Jun 30, 2026
136 holders · 9.60M shares · 22 new positions · 77 increased · 40 reduced · 10 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Global Alpha Capital Management Ltd. | 1.44M | 9.39% | −12.7K | Aug 13, 2026 |
| BlackRock, Inc. | 923.3K | 6.00% | +21.1K | Aug 7, 2026 |
| Dimensional Fund Advisors LP | 727.4K | 4.73% | −20.9K | Aug 11, 2026 |
| Brown Brothers Harriman & Co | 662.5K | 4.31% | 0 | Aug 12, 2026 |
| American Century Companies Inc | 573.6K | 3.73% | +98.7K | Aug 12, 2026 |
| Vanguard Capital Management LLC | 414.2K | 2.69% | −8.1K | Aug 13, 2026 |
| Acadian Asset Management LLC | 379.8K | 2.47% | +16.6K | Aug 13, 2026 |
| D. E. Shaw & Co., Inc. | 375.1K | 2.44% | +1.6K | Aug 14, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Prior Cornelius B Jr | 28.96% | 4.45M | 13D | Jun 15, 2026 ↗ |
| Global Alpha Capital Management Ltd. | 10.10% | 1.53M | 13G | Jan 6, 2025 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Prior Cornelius B Jr | 10 percent owner | 4.02M | 26.13% | Aug 26, 2026 |
| Michael T. Prior | director, other: EXECUTIVE CHAIRMAN | 587.7K | 3.82% | Mar 27, 2026 |
| Brad W. Martin | director, officer: CHIEF EXECUTIVE OFFICER | 126.1K | 0.82% | Mar 27, 2026 |
| Mary Mabey | officer: SVP AND GENERAL COUNSEL | 60.4K | 0.39% | Aug 11, 2026 |
| Carlos Doglioli | officer: Chief Financial Officer | 50.4K | 0.33% | Mar 19, 2026 |
| Justin M. Leon | officer: SVP, CORPORATE DEVELOPMENT | 49.7K | 0.32% | Mar 27, 2026 |
| Pamela F. Lenehan | director | 38.1K | 0.25% | Jun 18, 2026 |
| Bernard J. Bulkin | director | 37.2K | 0.24% | Jun 18, 2026 |
| Naji Khoury | officer: CEO | 36.9K | 0.24% | Apr 28, 2026 |
| April Henry | director | 26.3K | 0.17% | Jun 18, 2026 |
2 ten-percent owners hold 5.13M shares by Form 4 — the 13D/G table above shows those stakes, the figure above counts officers and directors only · 19 people have not refiled in the last 18 months (366.1K shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 24, 2026 | Cornelius B. Jr Prior10 percent owner | Sale | 10,000 | $31.34 | 37,165 |
| Aug 20, 2026 | Cornelius B. Jr Prior10 percent owner | Sale | 500 | $31.25 | 47,165 |
| Aug 19, 2026 | Cornelius B. Jr Prior10 percent owner | Sale | 10,000 | $31.86 | 47,665 |
| Aug 20, 2026 | Patricia Jacobsdirector | Sale | 1,000 | $31.14 | 21,458 |
| Aug 18, 2026 | Cornelius B. Jr Prior10 percent owner | Sale | 1,000 | $31.75 | 57,665 |
| Aug 17, 2026 | Cornelius B. Jr Prior10 percent owner | Sale | 5,745 | $31.79 | 58,665 |
| Aug 14, 2026 | Cornelius B. Jr Prior10 percent owner | Sale | 26 | $32.10 | 64,410 |
| Aug 13, 2026 | Cornelius B. Jr Prior10 percent owner | Sale | 2,500 | $32.05 | 64,436 |
| Aug 10, 2026 | Cornelius B. Jr Prior10 percent owner | Sale · 2 lots | 7,000 | $32.55 | 66,936 |
| Aug 10, 2026 | Mary Mabeyofficer: SVP AND GENERAL COUNSEL | Sale | 5,000 | $32.13 | 60,402 |
CongressHouse and Senate disclosures
Not reported.