SEC Form 4 · Updated Daily
ATNI
— ATN INTERNATIONAL, INC. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| PRIOR CORNELIUS B JR | 10%+ Owner | 3,956,303 | 2026-10-01 | G |
| Prior Family Foundation | 10%+ Owner | 1,211,250 | 2006-06-20 | — |
| Prior Gertrude J | 10%+ Owner | 1,111,250 | 2006-07-26 | S |
| PRIOR MICHAEL T | Director | 587,673 | 2026-03-25 | F |
| Martin Brad W | Director · Officer | 126,129 | 2026-03-25 | F |
| BENINCASA JUSTIN D | Reporting Owner | 68,135 | 2024-03-25 | F |
| Mabey Mary | Officer | 60,402 | 2026-08-10 | S |
| Kreisher William F | Officer | 52,102 | 2020-07-30 | S |
| Doglioli Carlos | Officer | 50,449 | 2026-03-17 | A |
| Leon Justin M | Officer | 49,707 | 2026-03-25 | F |
| LENEHAN PAMELA F | Director | 38,086 | 2026-06-16 | A |
| Bulkin Bernard J | Director | 37,217 | 2026-06-16 | A |
| Khoury Naji | Officer | 36,853 | 2026-04-24 | A |
| Slap Leonard Q. | Officer | 28,017 | 2018-03-09 | F |
| Henry April | Director | 26,338 | 2026-06-16 | A |
| BURRI ERNST A | Director | 24,784 | 2006-05-15 | M |
| Fougere Barry C | Officer | 24,208 | 2018-03-17 | F |
| Ganong Richard J | Director | 23,787 | 2024-06-18 | A |
| Schuchman Brian A | Director | 22,000 | 2013-06-14 | S |
| PELLETIER LIANE J | Director | 20,816 | 2022-06-07 | A |
| Jacobs Patricia | Director | 19,958 | 2026-08-31 | S |
| WHEATLEY HENRY U | Director | 18,776 | 2010-06-15 | G |
| Hudson Derek | Director | 17,157 | 2026-06-16 | A |
| ROESSLEIN CHARLES J | Director | 13,226 | 2020-09-15 | A |
| FLYNN MICHAEL T | Director | 12,830 | 2018-06-12 | A |
| Noone Karl | Officer | 11,054 | 2014-06-06 | S |
| Audet John Patrick | Officer | 9,526 | 2010-02-11 | A |
| MINSTER DOUGLAS J | Officer | 9,000 | 2010-02-11 | A |
| EISENSTEIN JAMES S | Director | 8,982 | 2022-06-07 | A |
| Fienberg Andrew | Officer | 8,500 | 2010-02-11 | A |
| Kennedy John Clarke | Director | 8,485 | 2021-06-10 | A |
| Budd Martin L | Director | 5,896 | 2020-04-24 | G |
| Cunningham Thomas V | Director | 2,538 | 2011-06-14 | A |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-10-01 | PRIOR CORNELIUS B JR | Gift | 13,500 | $0.00 | 3,956,303 |
| 2026-09-04 | PRIOR CORNELIUS B JR | Gift | 12,500 | $0.00 | 3,969,803 |
| 2026-09-03 | PRIOR CORNELIUS B JR | Open-market sale | 4,542 | $31.02 | 30,041 |
| 2026-09-02 | PRIOR CORNELIUS B JR | Open-market sale | 2,582 | $31.12 | 34,583 |
| 2026-08-31 | Jacobs Patricia | Open-market sale | 1,500 | $30.04 | 19,958 |
| 2026-08-24 | PRIOR CORNELIUS B JR | Open-market sale | 10,000 | $31.34 | 37,165 |
| 2026-08-21 | PRIOR CORNELIUS B JR | Open-market sale | 5,367 | $31.32 | 20,174 |
| 2026-08-20 | Jacobs Patricia | Open-market sale | 1,000 | $31.14 | 21,458 |
| 2026-08-20 | PRIOR CORNELIUS B JR | Open-market sale | 500 | $31.25 | 47,165 |
| 2026-08-19 | PRIOR CORNELIUS B JR | Open-market sale | 10,000 | $31.86 | 47,665 |
| 2026-08-18 | PRIOR CORNELIUS B JR | Open-market sale | 1,000 | $31.75 | 57,665 |
| 2026-08-17 | PRIOR CORNELIUS B JR | Open-market sale | 5,745 | $31.79 | 58,665 |
| 2026-08-14 | PRIOR CORNELIUS B JR | Open-market sale | 26 | $32.10 | 64,410 |
| 2026-08-13 | PRIOR CORNELIUS B JR | Open-market sale | 2,500 | $32.05 | 64,436 |
| 2026-08-10 | Mabey Mary | Open-market sale | 5,000 | $32.13 | 60,402 |
| 2026-08-10 | PRIOR CORNELIUS B JR | Open-market sale | 500 | $33.25 | 66,936 |
| 2026-08-10 | PRIOR CORNELIUS B JR | Open-market sale | 6,500 | $32.49 | 67,436 |
| 2026-08-10 | PRIOR CORNELIUS B JR | Gift | 12,000 | $0.00 | 3,982,303 |
| 2026-08-07 | PRIOR CORNELIUS B JR | Open-market sale | 4,500 | $31.03 | 25,541 |
| 2026-08-07 | PRIOR CORNELIUS B JR | Open-market sale | 500 | $31.17 | 73,936 |
| 2026-08-06 | PRIOR CORNELIUS B JR | Open-market sale | 500 | $30.25 | 74,436 |
| 2026-08-06 | PRIOR CORNELIUS B JR | Open-market sale | 500 | $30.35 | 74,936 |
| 2026-08-06 | PRIOR CORNELIUS B JR | Open-market sale | 500 | $29.15 | 75,436 |
| 2026-08-06 | PRIOR CORNELIUS B JR | Open-market sale | 500 | $30.25 | 75,936 |
| 2026-08-06 | PRIOR CORNELIUS B JR | Open-market sale | 500 | $29.10 | 76,436 |
| 2026-08-06 | PRIOR CORNELIUS B JR | Open-market sale | 500 | $30.35 | 76,936 |
| 2026-08-06 | PRIOR CORNELIUS B JR | Open-market sale | 500 | $28.95 | 77,436 |
| 2026-08-06 | PRIOR CORNELIUS B JR | Open-market sale | 500 | $30.30 | 77,936 |
| 2026-08-06 | PRIOR CORNELIUS B JR | Open-market sale | 500 | $28.96 | 78,436 |
| 2026-08-06 | PRIOR CORNELIUS B JR | Open-market sale | 500 | $30.30 | 78,936 |
| 2026-08-06 | PRIOR CORNELIUS B JR | Open-market sale | 500 | $30.30 | 79,436 |
| 2026-08-06 | PRIOR CORNELIUS B JR | Open-market sale | 500 | $28.80 | 79,936 |
| 2026-08-06 | PRIOR CORNELIUS B JR | Open-market sale | 500 | $30.50 | 80,436 |
| 2026-08-06 | PRIOR CORNELIUS B JR | Open-market sale | 500 | $28.76 | 80,936 |
| 2026-06-29 | PRIOR CORNELIUS B JR | Open-market sale | 500 | $27.52 | 81,436 |
| 2026-06-29 | PRIOR CORNELIUS B JR | Open-market sale | 2,000 | $27.57 | 81,936 |
| 2026-06-29 | PRIOR CORNELIUS B JR | Open-market sale | 1,000 | $27.60 | 83,936 |
| 2026-06-29 | PRIOR CORNELIUS B JR | Open-market sale | 1,000 | $27.86 | 84,936 |
| 2026-06-29 | PRIOR CORNELIUS B JR | Open-market sale | 500 | $27.75 | 85,936 |
| 2026-06-26 | PRIOR CORNELIUS B JR | Open-market sale | 500 | $27.10 | 86,436 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.