Michael T. Prior
CHAIRMAN AND CEO at ATN International Inc.
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: ATN International Inc., 3 years.
Chief executive roles
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
ATN International Inc. June 16, 202696.8%
-
ATN International Inc. June 17, 202595.2%
-
ATN International Inc. June 18, 202496.6%
-
ATN International Inc. June 6, 202399.1%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Mar 25, 2026 | ATN International Inc. | Shares withheld for tax | −2,378 | $27.92 | $66,394 |
| Mar 17, 2026 | ATN International Inc. | Grant or award | +13,524 | — | — |
| Mar 13, 2026 | ATN International Inc. | Shares withheld for tax | −4,686 | $24.49 | $114,760 |
| Mar 12, 2026 | ATN International Inc. | Shares withheld for tax | −2,191 | $24.65 | $54,008 |
| Mar 7, 2026 | ATN International Inc. | Option exercise | +14,500 | — | — |
| Mar 7, 2026 | ATN International Inc. | Shares withheld for tax | −6,430 | $24.18 | $155,477 |
| Mar 7, 2026 | ATN International Inc. | Shares withheld for tax | −2,982 | $24.18 | $72,105 |
| Apr 7, 2025 | ATN International Inc. | Grant or award | +42,472 | — | — |
| Mar 25, 2025 | ATN International Inc. | Option exercise | +13,514 | — | — |
| Apr 29, 2024 | ATN International Inc. | Open-market purchase | +10,000 | $19.88 | $198,800 |
| Mar 25, 2024 | ATN International Inc. | Shares withheld for tax | −2,431 | $30.21 | $73,441 |
| Mar 12, 2024 | ATN International Inc. | Grant or award | +21,720 | — | — |
| Mar 11, 2024 | ATN International Inc. | Shares withheld for tax | −3,186 | $32.99 | $105,106 |
| Mar 9, 2024 | ATN International Inc. | Shares withheld for tax | −2,271 | $33.06 | $75,079 |
| Mar 8, 2024 | ATN International Inc. | Option exercise | +16,641 | — | — |
Questions about Michael T. Prior
What boards is Michael T. Prior on?
Michael T. Prior sits on the board of ATN International Inc.
What company is Michael T. Prior the CEO of?
Michael T. Prior is CHAIRMAN AND CEO of ATN International Inc.
How long has Michael T. Prior served on boards?
Our records show at least 4 years of board service across 1 board, the earliest from 2023.
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