MICHAEL T PRIOR
CIK 1244465 · CHAIRMAN AND CEO · last filed 2026-03-27
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
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Disclosed Exposure
$16.72M
Companies
1
Total Filings
121
Lifetime Open-Market Net
-$4.61M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ATNI | Director | 589,254 | $28.37 | $16.72M | -$4.61M | 121 | 2026-03-27 |
Recent Filings · Page 4 of 13
121 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2021-03-15 | ATNI | Tax (F) | −3,021 | -$157.4K | EDGAR |
| 2021-03-11 | ATNI | Grant (A) | +19,350 | $0 | EDGAR |
| 2021-03-10 | ATNI | Tax (F) | −2,428 | -$126.9K | EDGAR |
| 2021-03-09 | ATNI | Tax (F) | −2,409 | -$120.2K | EDGAR |
| 2020-08-13 | ATNI | Sell (S) | −2,000 | -$120.3K | EDGAR |
| 2020-08-03 | ATNI | Sell (S) | −300 | -$19.2K | EDGAR |
| 2020-07-17 | ATNI | Sell (S) | −2,000 | -$125.0K | EDGAR |
| 2020-06-02 | ATNI | Sell (S) | −2,000 | -$120.9K | EDGAR |
| 2020-05-01 | ATNI | Sell (S) | −2,400 | -$183.9K | EDGAR |
| 2020-04-27 | ATNI | Sell (S) | −3,307 | -$230.6K | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.