ATNI insider buying and SEC filings, explained
ATN International, Inc. · CIK 879585
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$5.1M
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Aug 7–21, 2026 | Sale | Cornelius B. Prior Jr. (10% owner) sold 9,867 shares indirectly between Aug 7 and Aug 21 at about $31.19 ($308K). Indirect holdings down 33% to 20,174 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 18, 2026 |
| Sep 2–3, 2026 | Sale | Cornelius B. Prior Jr. (10% owner) sold 7,124 shares indirectly between Sep 2 and Sep 3 at about $31.06 ($221K). Indirect holdings down 19% to 30,041 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 4, 2026 |
| Aug 31, 2026 | Sale | Patricia Jacobs (Director) sold 1,500 shares at $30.04 ($45K). Holdings down 7% to 19,958 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 2, 2026 |
| Aug 24, 2026 | Sale | Cornelius B. Prior Jr. (10% owner) sold 10,000 shares indirectly at $31.34 ($313K). Indirect holdings down 21% to 37,165 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 26, 2026 |
| Aug 20, 2026 | Sale | Patricia Jacobs (Director) sold 1,000 shares at $31.14 ($31K). Holdings down 4% to 21,458 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 21, 2026 |
| Aug 19–20, 2026 | Sale | Cornelius B. Prior Jr. (10% owner) sold 10,500 shares indirectly between Aug 19 and Aug 20 at about $31.83 ($334K). Indirect holdings down 18% to 47,165 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 21, 2026 |
| Aug 17–18, 2026 | Sale | Cornelius B. Prior Jr. (10% owner) sold 6,745 shares indirectly between Aug 17 and Aug 18 at about $31.78 ($214K). Indirect holdings down 10% to 57,665 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 19, 2026 |
| Aug 13–14, 2026 | Sale | Cornelius B. Prior Jr. (10% owner) sold 2,526 shares indirectly between Aug 13 and Aug 14 at about $32.05 ($81K). Indirect holdings down 4% to 64,410 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 17, 2026 |
| Aug 10, 2026 | Sale | Cornelius B. Prior Jr. (10% owner) sold 7,000 shares indirectly at about $32.54 ($228K). Indirect holdings down 9% to 66,936 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 12, 2026 |
| Aug 10, 2026 | Sale | Mary Mabey (SVP and General Counsel) sold 5,000 shares at $32.13 ($161K). Holdings down 8% to 60,402 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 11, 2026 |
| Aug 6–7, 2026 | Sale | Cornelius B. Prior Jr. (10% owner) sold 7,500 shares indirectly between Aug 6 and Aug 7 at about $29.83 ($224K). Indirect holdings down 9% to 73,936 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 10, 2026 |
| Jun 29, 2026 | Sale | Cornelius B. Prior Jr. (10% owner) sold 5,000 shares indirectly at about $27.65 ($138K). Indirect holdings down 6% to 81,436 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jul 1, 2026 |
| Jun 25–26, 2026 | Sale | Cornelius B. Prior Jr. (10% owner) sold 1,500 shares indirectly between Jun 25 and Jun 26 at about $27.08 ($41K). Indirect holdings down 2% to 86,436 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 29, 2026 |
| May 7–Jun 12, 2026 | Sale | Cornelius B. Prior Jr. (10% owner) sold 82,064 shares indirectly between May 7 and Jun 12 at about $27.77 ($2.3M). Indirect holdings down 46% to 87,936 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 15, 2026 |
| Nov 10, 2025 | Sale | Richard J Ganong (Former Director as of 6/2025) sold 23,787 shares at about $19.40 ($461K). Holdings down 100% to 0 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 18, 2026 |
30 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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