ATN International, Inc. (ATNI) Insider Trading
Over the last 3 months, ATNI insiders made 0 open-market buys and 26 sales, a net sale of -$3.5M (SEC Form 4). Over the last 6 months, 98 institutions increased and 78 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
26
Net (3m)
-$3.5M
Insider trades by month Buys Sells
Dec
Nov
Apr
Jun
Jul
Aug
Context3-month price +5%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 26, 2026 | PRIOR CORNELIUS B JR10 percent owner | Sell | 10,000 | $31.34 |
| Aug 21, 2026 | PRIOR CORNELIUS B JR10 percent owner | Sell | 500 | $31.25 |
| Aug 21, 2026 | Jacobs Patriciadirector | Sell | 1,000 | $31.14 |
| Aug 21, 2026 | PRIOR CORNELIUS B JR10 percent owner | Sell | 10,000 | $31.86 |
| Aug 19, 2026 | PRIOR CORNELIUS B JR10 percent owner | Sell | 5,745 | $31.79 |
| Aug 19, 2026 | PRIOR CORNELIUS B JR10 percent owner | Sell | 1,000 | $31.75 |
| Aug 17, 2026 | PRIOR CORNELIUS B JR10 percent owner | Sell | 2,500 | $32.05 |
| Aug 17, 2026 | PRIOR CORNELIUS B JR10 percent owner | Sell | 26 | $32.10 |
| Aug 12, 2026 | PRIOR CORNELIUS B JR10 percent owner | Sell | 500 | $33.25 |
| Aug 12, 2026 | PRIOR CORNELIUS B JR10 percent owner | Sell | 6,500 | $32.49 |
| Aug 11, 2026 | Mabey Maryofficer: SVP AND GENERAL COUNSEL | Sell | 5,000 | $32.13 |
| Aug 10, 2026 | PRIOR CORNELIUS B JR10 percent owner | Sell | 500 | $28.76 |
| Jul 1, 2026 | PRIOR CORNELIUS B JR10 percent owner | Sell | 1,000 | $27.86 |
| Jul 1, 2026 | PRIOR CORNELIUS B JR10 percent owner | Sell | 2,000 | $27.57 |
| Jul 1, 2026 | PRIOR CORNELIUS B JR10 percent owner | Sell | 500 | $27.75 |
| Jun 29, 2026 | PRIOR CORNELIUS B JR10 percent owner | Sell | 500 | $27.10 |
| Jun 18, 2026 | LENEHAN PAMELA Fdirector | Grant | 4,788 | $27.15 |
| Jun 18, 2026 | Hudson Derekdirector | Tax | 1,436 | $27.15 |
| Jun 18, 2026 | Bulkin Bernard Jdirector | Grant | 4,788 | $27.15 |
| Jun 18, 2026 | Hudson Derekdirector | Grant | 4,788 | $27.15 |
| Jun 18, 2026 | Jacobs Patriciadirector | Grant | 4,788 | $27.15 |
| Jun 18, 2026 | Henry Aprildirector | Grant | 4,788 | $27.15 |
| Jun 15, 2026 | PRIOR CORNELIUS B JR10 percent owner | Sell | 3,500 | $25.54 |
| Jun 15, 2026 | PRIOR CORNELIUS B JR10 percent owner | Sell | 2,500 | $26.00 |
| Jun 15, 2026 | PRIOR CORNELIUS B JR10 percent owner | Sell | 17,500 | $28.17 |
| Jun 15, 2026 | PRIOR CORNELIUS B JR10 percent owner | Sell | 19,100 | $27.96 |
| Jun 15, 2026 | PRIOR CORNELIUS B JR10 percent owner | Sell | 2,854 | $27.96 |
| Jun 15, 2026 | PRIOR CORNELIUS B JR10 percent owner | Sell | 6,000 | $28.30 |
| Jun 15, 2026 | PRIOR CORNELIUS B JR10 percent owner | Sell | 1,000 | $26.25 |
| Jun 15, 2026 | PRIOR CORNELIUS B JR10 percent owner | Sell | 5,000 | $27.25 |
Source: ATNI SEC Form 4 filings, latest Aug 26, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their ATNI positions over the last 6 months (SEC Form 13F).
Increased
98
New positions
46
Reduced
78
Sold out
8
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| GLOBAL ALPHA CAPITAL MANAGEMENT LTD. | Unchanged | 1.5M | May 11, 2026 |
| Global Alpha Capital Management Ltd. | Reduced | 1.4M | Aug 13, 2026 |
| BlackRock, Inc. | Increased | 923K | Aug 7, 2026 |
| BLACKROCK, INC. | Reduced | 902K | May 13, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 748K | May 7, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 727K | Aug 11, 2026 |
| BROWN BROTHERS HARRIMAN & CO | Unchanged | 663K | May 14, 2026 |
| BROWN BROTHERS HARRIMAN & CO | Unchanged | 663K | Aug 12, 2026 |
| AMERICAN CENTURY COMPANIES INC | Increased | 574K | Aug 12, 2026 |
| AMERICAN CENTURY COMPANIES INC | Increased | 475K | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 422K | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 414K | Aug 13, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 380K | Aug 13, 2026 |
| D. E. Shaw & Co., Inc. | Increased | 375K | Aug 14, 2026 |
| D. E. SHAW & CO., INC. | Reduced | 374K | May 15, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.