ATN International (ATNI)
Builds and operates fiber, tower, and broadband networks across underserved U.S. and island markets.
$29.20
vs last close−0.42 (−1.42%)
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13F · 13D/G · Form 4
| Institutions | ≈ 62.35% | 9.59M shares | |
|---|---|---|---|
| 136 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail | |||
| Insiders | 35.05% | 5.39M shares | |
| 12 holders · as of Sep 18, 2026 | |||
| Other | ≈ 2.60% | 399.5K shares | |
| remainder | |||
15.38M company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.
13F, as of Jun 30, 2026
136 holders · 9.59M shares · 22 new positions · 76 increased · 41 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 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Prior Cornelius B Jr | 28.96% | 4.45M | 13D | Jun 15, 2026 |
| Cornelius B. Prior, Jr. | 28.19% | 4.34M | 13D | Sep 18, 2026 |
| Global Alpha Capital Management Ltd. | 10.10% | 1.53M | 13G | Jan 6, 2025 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 21, 2026 | Cornelius B. Jr Prior10 percent owner | Sale | 5,367 | $31.32 | 20,174 |
| Aug 7, 2026 | Cornelius B. Jr Prior10 percent owner | Sale · 2 lots | 5,000 | $31.04 | 25,541 |
| Sep 3, 2026 | Cornelius B. Jr Prior10 percent owner | Sale | 4,542 | $31.02 | 30,041 |
| Sep 2, 2026 | Cornelius B. Jr Prior10 percent owner | Sale | 2,582 | $31.12 | 34,583 |
| Aug 31, 2026 | Patricia Jacobsdirector | Sale | 1,500 | $30.04 | 19,958 |
| 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 |
House and Senate disclosures
Not reported.