ATN International, Inc. (ATNI) has 20 known insider and institutional holders on record. The largest holder is PRIOR MICHAEL T with 581,213 shares. Other notable holders include Martin Brad W and BENINCASA JUSTIN D.
Over the last 12 months, insiders have made 29 transactions in ATNI stock — 9 buys (valued at $519.99K) and 0 sells (valued at RSU Award). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
ATNI Insider Ownership
Top Holder
PRIOR MICHAEL T
581,213 shares
Buys (12 mo)
9
$519.99K value
Sells (12 mo)
0
$0.00 value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Prior Michael T |
Other: Executive Chairman |
581,213 |
2026-03-27 |
|
| 2 |
Martin Brad W |
Chief Executive Officer |
126,129 |
2026-03-27 |
|
| 3 |
Benincasa Justin D |
Other: Former CFO |
68,135 |
2024-03-27 |
|
| 4 |
Mabey Mary |
SVP and General Counsel |
65,402 |
2026-03-27 |
|
| 5 |
Kreisher William F |
Senior VP, Corporate Dev |
52,102 |
2020-08-03 |
|
| 6 |
Leon Justin M |
SVP, Corporate Development |
49,707 |
2026-03-27 |
|
| 7 |
Lenehan Pamela F |
Director |
33,298 |
2025-06-20 |
|
| 8 |
Bulkin Bernard J |
Director |
32,429 |
2025-06-20 |
|
| 9 |
Slap Leonard Q. |
SVP and General Counsel |
28,544 |
2018-03-12 |
|
| 10 |
Fougere Barry C |
EVP Business Operations |
24,208 |
2018-03-20 |
|
| 11 |
Ganong Richard J |
Director |
23,787 |
2024-06-20 |
|
| 12 |
Schuchman Brian A |
Director |
22,000 |
2013-06-18 |
|
| 13 |
Henry April |
Director |
21,550 |
2025-06-20 |
|
| 14 |
Pelletier Liane J |
Director |
20,816 |
2022-06-08 |
|
| 15 |
Doglioli Carlos |
Chief Financial Officer |
18,032 |
2026-03-19 |
|
| 16 |
Jacobs Patricia |
Director |
17,670 |
2025-06-20 |
|
| 17 |
Roesslein Charles J |
Director |
13,226 |
2020-09-17 |
|
| 18 |
Flynn Michael T |
Director |
12,830 |
2018-06-14 |
|
| 19 |
Hudson Derek |
Director |
12,369 |
2025-06-20 |
|
| 20 |
Noone Karl |
SVP & Corporate Controller |
11,054 |
2014-06-10 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-25 |
Leon Justin M |
SVP, Corporate Development |
Tax Withholding of RSU |
560 |
$27.92 |
$15.64K |
| 2026-03-25 |
Martin Brad W |
Chief Executive Officer |
Tax Withholding of RSU |
1,237 |
$27.92 |
$34.54K |
| 2026-03-25 |
Mabey Mary |
SVP and General Counsel |
Tax Withholding of RSU |
875 |
$27.92 |
$24.43K |
| 2026-03-25 |
Prior Michael T |
Other: Executive Chairman |
Tax Withholding of RSU |
2,378 |
$27.92 |
$66.39K |
| 2026-03-17 |
Prior Michael T |
Other: Executive Chairman |
RSU Award |
13,524 |
- |
- |
| 2026-03-13 |
Prior Michael T |
Other: Executive Chairman |
Tax Withholding of RSU |
4,686 |
$24.49 |
$114.76K |
| 2026-03-12 |
Prior Michael T |
Other: Executive Chairman |
Tax Withholding of RSU |
2,191 |
$24.65 |
$54.01K |
| 2026-03-07 |
Prior Michael T |
Other: Executive Chairman |
Option Exercise (Sell) |
25,000 |
- |
- |
| 2026-03-17 |
Doglioli Carlos |
Chief Financial Officer |
RSU Award |
18,032 |
- |
- |
| 2026-03-17 |
Leon Justin M |
SVP, Corporate Development |
RSU Award |
10,820 |
- |
- |
| 2026-03-17 |
Martin Brad W |
Chief Executive Officer |
RSU Award |
27,048 |
- |
- |
| 2026-03-17 |
Mabey Mary |
SVP and General Counsel |
RSU Award |
12,624 |
- |
- |
| 2026-03-13 |
Doglioli Carlos |
Chief Financial Officer |
Tax Withholding of RSU |
1,831 |
$24.49 |
$44.84K |
| 2026-03-12 |
Doglioli Carlos |
Chief Financial Officer |
Tax Withholding of RSU |
1,066 |
$24.65 |
$26.28K |
| 2026-03-13 |
Leon Justin M |
SVP, Corporate Development |
Tax Withholding of RSU |
1,671 |
$24.49 |
$40.92K |
| 2026-03-12 |
Leon Justin M |
SVP, Corporate Development |
Tax Withholding of RSU |
903 |
$24.65 |
$22.26K |
| 2026-03-13 |
Martin Brad W |
Chief Executive Officer |
Tax Withholding of RSU |
4,496 |
$24.49 |
$110.11K |
| 2026-03-12 |
Martin Brad W |
Chief Executive Officer |
Tax Withholding of RSU |
2,299 |
$24.65 |
$56.67K |
| 2026-03-13 |
Mabey Mary |
SVP and General Counsel |
Tax Withholding of RSU |
2,197 |
$24.19 |
$53.15K |
| 2026-03-12 |
Mabey Mary |
SVP and General Counsel |
Tax Withholding of RSU |
1,122 |
$24.65 |
$27.66K |
| 2026-03-07 |
Leon Justin M |
SVP, Corporate Development |
Option Exercise (Sell) |
5,500 |
- |
- |
| 2026-03-07 |
Martin Brad W |
Chief Executive Officer |
Option Exercise (Sell) |
11,000 |
- |
- |
| 2026-03-07 |
Mabey Mary |
SVP and General Counsel |
Option Exercise (Sell) |
6,600 |
- |
- |
| 2025-12-31 |
Ganong Richard J |
Officer |
Unknown |
- |
- |
- |
| 2025-06-17 |
Hudson Derek |
Director |
Tax Withholding of RSU |
2,590 |
$15.06 |
$39.01K |
