ATN International, Inc.·4

Mar 19, 3:33 PM ET

Mabey Mary 4

4 · ATN International, Inc. · Filed Mar 19, 2026

Research Summary

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ATN (ATNI) SVP Mary Mabey Receives RSU/PSU Award

What Happened Mary Mabey, SVP and General Counsel of ATN International (ATNI), received equity awards on March 17, 2026: 12,624 restricted stock units (RSUs) and 12,624 performance-based restricted stock units (PSUs). Both awards are reported as acquisitions at $0.00 (typical for compensation grants). This is a company compensation grant (award), not an open-market purchase or sale.

Key Details

  • Transaction date: March 17, 2026; Form 4 filed March 19, 2026 (within the usual two-business-day filing window).
  • Awarded: 12,624 RSUs and 12,624 PSUs; reported acquisition price $0.00.
  • Shares owned after transaction: not disclosed in the filing.
  • Footnote highlights:
    • RSUs vest in four equal annual installments on March 17 of 2027, 2028, 2029 and 2030 (F1).
    • PSUs are performance-based, tied to relative total shareholder return (TSR) vs. the Russell 2000; payout ranges from 0% to 150% of target (F2).
    • PSU performance period runs March 17, 2026 through March 17, 2029 (F3).
  • Transaction code: A = Award/Grant.

Context RSUs provide a right to receive company shares upon vesting; PSUs are contingent on meeting relative TSR targets and may pay out between 0% and 150% of target units depending on performance. Because these are compensation grants, they reflect executive pay arrangements rather than a direct personal purchase or sale signal.

Insider Transaction Report

Form 4
Period: 2026-03-17
Mabey Mary
SVP AND GENERAL COUNSEL
Transactions
  • Award

    Common Stock

    [F1]
    2026-03-17+12,62466,277 total
  • Award

    Performance-Based Restricted Stock Units

    [F2][F3]
    2026-03-17+12,62412,624 total
    Exercise: $0.00Common Stock (12,624 underlying)
Footnotes (3)
  • [F1]The securities described are restricted stock units and will vest in four equal installments on each of March 17, 2027, 2028, 2029 and 2030. Upon vesting Ms. Mabey will receive a number of shares of common stock equal to the number of restricted stock units that have vested.
  • [F2]Each performance-based RSU ("PSU") represents a contingent right to receive one share of the Issuer's common stock, subject to achievement of pre-established relative total shareholder return ("TSR") goals that were set by the Compensation Committee of the Issuer's Board of Directors, based on comparing the Issuer's TSR relative to the TSR of the Russell 2000 Index, using the average closing price of the shares for the 40 days before and including each of the first and last days of the applicable performance period. The aggregate number of shares issued may range from zero (0) shares to 150% of the target number of shares reported in Columns 7 and 9 of this report.
  • [F3]Between zero (0) and 150% of the PSUs will generally vest, if at all, as of the end of the performance period that begins on March 17, 2026, and ends on March 17, 2029.
Signature
/s/ Mary Mabey|2026-03-19

Documents

1 file
  • 4
    form4-03192026_070351.xmlPrimary