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PRIOR MICHAEL T

Disclosed activity across 1 company

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55695
SEC CIK
0001244465

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
ATN International, Inc.ATNI · Entity 24Director · EXECUTIVE CHAIRMANMarch 25, 2026March 27, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

ATN International, Inc.

Report date March 25, 2026 · Filed March 27, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect587,673 Reported balance After 2026-03-25 transaction · row 1
1 source row

Row 1 · 2026-03-25 · Tax withholding · Disposed 2,378 · Balance 587,673

F1: Represents shares withheld by the Company for payment of Mr. Prior's tax obligation arising from the vesting of previously granted Restricted Stock Units.

Common StockSEC Table I · non-derivativeIndirectTrustee of Lauren S. Prior 2013 Trust128,847 Reported balance Holding disclosure · report date 2026-03-25 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 128,847

Common StockSEC Table I · non-derivativeIndirectTrustee of JP 2018 Trust8,141 Reported balance Holding disclosure · report date 2026-03-25 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 8,141

Common StockSEC Table I · non-derivativeIndirectTrustee of WP 2015 Trust7,741 Reported balance Holding disclosure · report date 2026-03-25 · row 4 Holding and transaction disclosures are not merged.
1 source row

Row 4 · Balance 7,741

Common StockSEC Table I · non-derivativeIndirectTrustee of RP 2014 Trust8,041 Reported balance Holding disclosure · report date 2026-03-25 · row 5 Holding and transaction disclosures are not merged.
1 source row

Row 5 · Balance 8,041

Common StockSEC Table I · non-derivativeIndirectTrustee of Prior Family Trust 20197,982 Reported balance Holding disclosure · report date 2026-03-25 · row 6 Holding and transaction disclosures are not merged.
1 source row

Row 6 · Balance 7,982

Filing footnotes · ownership attribution and instrument terms

F1: Represents shares withheld by the Company for payment of Mr. Prior's tax obligation arising from the vesting of previously granted Restricted Stock Units.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
March 25, 2026 Filed Mar 27, 2026 21:36 UTC ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 2,378 $27.92 $66,393.76
Disclosure

SEC source: 0001244465-26-000011 · form4-03272026_090324.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 587,673

F1 · kind: Represents shares withheld by the Company for payment of Mr. Prior's tax obligation arising from the vesting of previously granted Restricted Stock Units.

Read SEC document
March 17, 2026 Filed Mar 27, 2026 21:35 UTC ATN International, Inc. ATNI · Entity 24 GrantPerformance-Based Restricted Stock Units · Derivative 13,524 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001244465-26-000009 · form4-03272026_090324.xml · derivative · entry 7

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,524

Underlying: Common Stock · 13,524 shares

Expires not disclosed

F2 · shares: Each performance-based RSU ("PSU") represents a contingent right to receive one share of the Issuer's common stock, subject to the 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 · derivative.exercise_date: 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.

F3 · derivative.expiration_date: 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.

Read SEC document
March 17, 2026 Filed Mar 27, 2026 21:35 UTC ATN International, Inc. ATNI · Entity 24 GrantCommon Stock 13,524 $0.00 $0.00
Disclosure

SEC source: 0001244465-26-000009 · form4-03272026_090324.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 590,051

F1 · shares: The securities described are restricted stock units and will fest in four equal installments on each of March 17, 2027, 2028, 2029 and 2030. Upon vesting Mr. Prior will receive a number of shares of common stock equal to the number of restricted stocks units that have vested.

Read SEC document
March 13, 2026 Filed Mar 27, 2026 21:34 UTC ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 4,686 $24.49 $114,760.14
Disclosure

SEC source: 0001244465-26-000007 · form4-03272026_090309.xml · nonDerivative · entry 2

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 576,527

F2 · kind: Refer to existing footnote (1)

Read SEC document
March 12, 2026 Filed Mar 27, 2026 21:34 UTC ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 2,191 $24.65 $54,008.15
Disclosure

SEC source: 0001244465-26-000007 · form4-03272026_090309.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 581,213

F1 · kind: Represents shares withheld by the Company for payment of Mr. Prior's tax obligation arising from the vesting of previously granted Restricted Stock Units.

Read SEC document
March 07, 2026 Filed Mar 27, 2026 21:31 UTC ATN International, Inc. ATNI · Entity 24 Exercise / conversionPerformance-Based Restricted Stock Units · Derivative 25,000 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001244465-26-000005 · form4-03272026_090352.xml · derivative · entry 9

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 25,000 shares

Expires 2026-03-07

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 07, 2026 Filed Mar 27, 2026 21:31 UTC ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 2,982 $24.18 $72,104.76
Disclosure

SEC source: 0001244465-26-000005 · form4-03272026_090352.xml · nonDerivative · entry 3

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 583,404

F4 · shares: Represents shares withheld by the Company for payment of Mr. Prior's tax obligation arising from the vesting of previously granted Restricted Stock Units.

Read SEC document
March 07, 2026 Filed Mar 27, 2026 21:31 UTC ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 6,430 $24.18 $155,477.40
Disclosure

SEC source: 0001244465-26-000005 · form4-03272026_090352.xml · nonDerivative · entry 2

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 586,386

F3 · shares: Represents shares withheld by the Company for payment of Mr. Prior's tax obligation arising from the vesting of previously granted Performance Stock Units in the existing footnote (1).

Read SEC document
March 07, 2026 Filed Mar 27, 2026 21:31 UTC ATN International, Inc. ATNI · Entity 24 Exercise / conversionCommon Stock 14,500 Not disclosed Not disclosed
Disclosure

SEC source: 0001244465-26-000005 · form4-03272026_090352.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 592,816

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Common stock issued upon vesting of performance-based RSU ("PSU") based on the 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 trading days of the applicable performance period, which ended on March 7, 2026. The aggregate number of shares issued is 58% of the target number of PSU shares previously reported.

F2 · price: Refer to existing footnote (1)

Read SEC document
April 07, 2025 Filed Apr 9, 2025 21:07 UTC ATN International, Inc. ATNI · Entity 24 GrantPerformance-Based Restricted Stock Units · Derivative 42,472 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001415889-25-010494 · form4-04092025_090438.xml · derivative · entry 7

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,472

Underlying: Common Stock · 42,472 shares

Expires not disclosed

F2 · shares: Each performance-based RSU ("PSU") represents a contingent right to receive one share of the Issuer's common stock, subject to the 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 · derivative.exercise_date: 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 13, 2025, and ends on March 13, 2028.

F3 · derivative.expiration_date: 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 13, 2025, and ends on March 13, 2028.

Read SEC document
April 07, 2025 Filed Apr 9, 2025 21:07 UTC ATN International, Inc. ATNI · Entity 24 GrantCommon Stock 42,472 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-010494 · form4-04092025_090438.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 578,316

F1 · shares: The securities described are restricted stock units and will fest in four equal installments on each of March 13, 2026, 2027, 2028 and 2029. Upon vesting Mr. Prior will receive a number of shares of common stock equal to the number of restricted stocks units that have vested.

Read SEC document
March 25, 2025 Filed Mar 27, 2025 16:50 UTC ATN International, Inc. ATNI · Entity 24 Exercise / conversionPerformance-Based Restricted Stock Units · Derivative 21,450 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001415889-25-009095 · form4-03272025_040330.xml · derivative · entry 7

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 21,450 shares

Expires 2025-03-25

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: Refer to existing footnote (1).

Read SEC document
March 25, 2025 Filed Mar 27, 2025 16:50 UTC ATN International, Inc. ATNI · Entity 24 Exercise / conversionCommon Stock 13,514 Not disclosed Not disclosed
Disclosure

SEC source: 0001415889-25-009095 · form4-03272025_040330.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 535,844

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Common stock issued upon vesting of performance-based RSU ("PSU") based on the 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, ending on March 25, 2025. The aggregate number of shares issued is 63% of the target number of PSU shares previously reported.

F2 · price: Refer to existing footnote (1).

F3 · balance_after: This amount represents a correction and displays the accurate number of shares.

Read SEC document
April 29, 2024 Filed Apr 30, 2024 14:32 UTC ATN International, Inc. ATNI · Entity 24 PurchaseCommon Stock 10,000 $19.88 $198,800.00
Disclosure

SEC source: 0001415889-24-011727 · form4-04302024_020430.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 523,026

F1 · price: These transactions were executed in multiple trades at prices ranging from $19.74 to $20.00. The price reported reflects the weighted average sale price. Full information regarding the number of shares sold and the prices at which the transaction were effected is available to the SEC staff, the issuer or any security holder of the issuer, upon request.

Read SEC document
March 25, 2024 Filed Mar 27, 2024 19:25 UTC ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 2,431 $30.21 $73,440.51
Disclosure

SEC source: 0001415889-24-009200 · form4-03272024_070310.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 513,026

F1 · shares: Represents shares withheld by the Company for payment of Mr. Prior's tax obligations arising from the vesting of previously granted Restricted Stock Units.

F2 · balance_after: This amount represents a correction and displays the accurate number of shares.

Read SEC document
March 12, 2024 Filed Mar 14, 2024 22:54 UTC ATN International, Inc. ATNI · Entity 24 GrantPerformance-Based Restricted Stock Units · Derivative 21,720 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001415889-24-008060 · form4-03142024_100339.xml · derivative · entry 2

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,720

Underlying: Common Stock · 21,720 shares

Expires not disclosed

F2 · shares: Each performance-based RSU ("PSU") represents a contingent right to receive one share of the Issuer's common stock, subject to the 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 5 and 7 of this report.

F3 · derivative.exercise_date: Between zero (0) and 150% of the PSUs will generally vest, if at all, as of the end of the performance period on March 12, 2027.

F3 · derivative.expiration_date: Between zero (0) and 150% of the PSUs will generally vest, if at all, as of the end of the performance period on March 12, 2027.

Read SEC document
March 12, 2024 Filed Mar 14, 2024 22:54 UTC ATN International, Inc. ATNI · Entity 24 GrantCommon Stock 21,720 $0.00 $0.00
Disclosure

SEC source: 0001415889-24-008060 · form4-03142024_100339.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 514,760

F1 · shares: The securities described are restricted stock units and will vest in four equal installments on each of March 12, 2025, 2026, 2027 and 2028. Upon vesting Mr. Prior will receive a number of shares of common stock equal to the number of restricted stocks units that have vested.

Read SEC document
March 12, 2024 Filed Mar 21, 2024 12:41 UTC Amendment ATN International, Inc. ATNI · Entity 24 GrantPerformance-Based Restricted Stock Units · Derivative 21,720 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001415889-24-008804 · form4a-03212024_120342.xml · derivative · entry 7

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,720

Underlying: Common Stock · 21,720 shares

Expires not disclosed

F2 · shares: This includes an adjustment to remove one share incorrectly included in columns 5 and 7 of Mr. Prior's previous Form 4 filing on March 14, 2024.

F3 · shares: Each performance-based RSU ("PSU") represents a contingent right to receive one share of the Issuer's common stock, subject to the 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 5 and 7 of this report.

F4 · derivative.exercise_date: Between zero (0) and 150% of the PSUs will generally vest, if at all, as of the end of the performance period on March 12, 2027.

F4 · derivative.expiration_date: Between zero (0) and 150% of the PSUs will generally vest, if at all, as of the end of the performance period on March 12, 2027.

F2 · derivative.underlying_shares: This includes an adjustment to remove one share incorrectly included in columns 5 and 7 of Mr. Prior's previous Form 4 filing on March 14, 2024.

F5 · balance_after: This includes an adjustment to remove one share incorrectly included in column 9 of Mr. Prior's previous Form 4 filing on March 14, 2024.

Read SEC document
March 12, 2024 Filed Mar 21, 2024 12:41 UTC Amendment ATN International, Inc. ATNI · Entity 24 GrantCommon Stock 21,720 $0.00 $0.00
Disclosure

SEC source: 0001415889-24-008804 · form4a-03212024_120342.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 514,760

F1 · shares: The securities described are restricted stock units and will vest in four equal installments on each of March 12, 2025, 2026, 2027 and 2028. Upon vesting Mr. Prior will receive a number of shares of common stock equal to the number of restricted stocks units that have vested.

Read SEC document
March 11, 2024 Filed Mar 12, 2024 22:02 UTC ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 3,186 $32.99 $105,106.14
Disclosure

SEC source: 0001415889-24-007700 · form4-03122024_100343.xml · nonDerivative · entry 3

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 493,040

F3 · shares: Represents shares withheld by the Company for payment of Mr. Prior's tax obligations arising from the vesting of previously granted Restricted Stock Units.

Read SEC document
March 09, 2024 Filed Mar 11, 2024 20:19 UTC ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 2,271 $33.06 $75,079.26
Disclosure

SEC source: 0001415889-24-007506 · form4-03112024_080350.xml · nonDerivative · entry 2

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 487,327

F1 · kind: Represents shares withheld by the Company for payment of Mr. Prior's tax obligations arising from the vesting of previously granted Restricted Stock Units.

Read SEC document
March 08, 2024 Filed Mar 12, 2024 22:02 UTC ATN International, Inc. ATNI · Entity 24 Exercise / conversionPerformance-Based Restricted Stock Units · Derivative 19,350 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001415889-24-007700 · form4-03122024_100343.xml · derivative · entry 9

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 19,350 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · shares: Each PSU represents a contingent right to receive one share of the Issuer's common stock, subject to the achievement of pre-established relative 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 actually vested represents approximately 86% of the target number of shares reported in columns 5 and 7 of this report. The end of the performance period was March 8, 2024.

F5 · derivative.exercise_date: Refer to existing footnote (4).

F6 · derivative.expiration_date: Refer to existing footnote (4).

Read SEC document
March 08, 2024 Filed Mar 12, 2024 22:02 UTC ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 7,742 $33.06 $255,950.52
Disclosure

SEC source: 0001415889-24-007700 · form4-03122024_100343.xml · nonDerivative · entry 2

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 496,226

F2 · shares: Represents shares withheld by the Company for payment of Mr. Prior's tax obligation arising from the vesting of previously granted Performance Stock Units.

Read SEC document
March 08, 2024 Filed Mar 12, 2024 22:02 UTC ATN International, Inc. ATNI · Entity 24 Exercise / conversionCommon Stock 16,641 $0.00 $0.00
Disclosure

SEC source: 0001415889-24-007700 · form4-03122024_100343.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 503,968

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Common stock issued upon vesting of performance-based RSU ("PSU") based on the 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 is 86% of the target number of PSU shares previously reported.

Read SEC document
March 07, 2024 Filed Mar 11, 2024 20:19 UTC ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 2,926 $32.20 $94,217.20
Disclosure

SEC source: 0001415889-24-007506 · form4-03112024_080350.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 489,598

F1 · kind: Represents shares withheld by the Company for payment of Mr. Prior's tax obligations arising from the vesting of previously granted Restricted Stock Units.

Read SEC document
December 27, 2023 Filed Feb 6, 2024 14:54 UTC ATN International, Inc. ATNI · Entity 24 GiftCommon Stock 2,594 $0.00 $0.00
Disclosure

SEC source: 0001415889-24-002769 · form5-02062024_020209.xml · nonDerivative · entry 2

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Indirect · Trustee of Prior Family Trust 2019

Disclosed balance after: 7,982

F1 · shares: Represents transfer of shares from direct to indirect holdings.

Read SEC document
December 27, 2023 Filed Feb 6, 2024 14:54 UTC ATN International, Inc. ATNI · Entity 24 GiftCommon Stock 2,594 $0.00 $0.00
Disclosure

SEC source: 0001415889-24-002769 · form5-02062024_020209.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 492,524

F1 · shares: Represents transfer of shares from direct to indirect holdings.

Read SEC document
November 20, 2023 Filed Nov 22, 2023 20:23 UTC ATN International, Inc. ATNI · Entity 24 PurchaseCommon Stock 10,000 $31.11 $311,100.00
Disclosure

SEC source: 0001415889-23-015403 · form4-11222023_081157.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · CHAIRMAN AND CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 495,118

F1 · price: These transactions were executed in multiple trades at prices ranging from $30.89 to $31.19. The price reported reflects the weighted average sale price. Full information regarding the number of shares sold and the prices at which the transaction were effected is available to the SEC staff, the issuer or any security holder of the issuer, upon request.

F2 · balance_after: Includes adjustment to remove 1 share incorrectly included in column 5 of Mr. Prior's previous Form 4 filing.

Read SEC document
March 25, 2023 Filed Mar 27, 2023 14:02 UTC ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 1,734 $38.74 $67,175.16
Disclosure

SEC source: 0001415889-23-005423 · form4-03272023_020306.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · CHAIRMAN AND CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 487,172

F1 · shares: Represents shares withheld by the Company for payment of Mr. Prior's tax obligation arising from the vesting of previously granted Restricted Stock Units.

Read SEC document
March 25, 2023 Filed Mar 28, 2023 17:13 UTC Amendment ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 1,734 $38.74 $67,175.16
Disclosure

SEC source: 0001415889-23-005473 · form4a-03282023_050321.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · CHAIRMAN AND CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 487,172

F1 · shares: Represents shares withheld by the Company for payment of Mr. Prior's tax obligation arising from the vesting of previously granted Restricted Stock Units.

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March 13, 2023 Filed Mar 15, 2023 17:40 UTC ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 2,021 $40.10 $81,042.10
Disclosure

SEC source: 0001415889-23-004933 · form4-03152023_050352.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · CHAIRMAN AND CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 488,906

F1 · shares: Represents shares withheld by the Company for payment of Mr. Prior's tax obligation arising from the vesting of previously granted Restricted Stock Units.

Read SEC document
March 13, 2023 Filed Mar 28, 2023 15:33 UTC Amendment ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 2,021 $40.10 $81,042.10
Disclosure

SEC source: 0001415889-23-005464 · form4a-03282023_030356.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · CHAIRMAN AND CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 488,906

F1 · shares: Represents shares withheld by the Company for payment of Mr. Prior's tax obligation arising from the vesting of previously granted Restricted Stock Units.

Read SEC document
March 11, 2023 Filed Mar 13, 2023 22:30 UTC ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 2,224 $40.49 $90,049.76
Disclosure

SEC source: 0001415889-23-004806 · form4-03132023_100332.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · CHAIRMAN AND CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 490,927

F1 · shares: Represents shares withheld by the Company for payment of Mr. Prior's tax obligation arising from the vesting of previously granted Restricted Stock Units.

Read SEC document
March 11, 2023 Filed Mar 28, 2023 15:54 UTC Amendment ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 2,224 $40.49 $90,049.76
Disclosure

SEC source: 0001415889-23-005468 · form4a-03282023_030356.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · CHAIRMAN AND CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 490,927

F1 · shares: Represents shares withheld by the Company for payment of Mr. Prior's tax obligation arising from the vesting of previously granted Restricted Stock Units.

Read SEC document
March 09, 2023 Filed Mar 13, 2023 20:21 UTC ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 1,585 $40.69 $64,493.65
Disclosure

SEC source: 0001415889-23-004751 · form4-03132023_080300.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · CHAIRMAN AND CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 493,151

F1 · shares: Represents shares withheld by the Company for payment of Mr. Prior's tax obligation arising from the vesting of previously granted Restricted Stock Units.

Read SEC document
March 09, 2023 Filed Mar 28, 2023 16:01 UTC Amendment ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 1,585 $40.69 $64,493.65
Disclosure

SEC source: 0001415889-23-005470 · form4a-03282023_040301.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · CHAIRMAN AND CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 493,151

F1 · shares: Represents shares withheld by the Company for payment of Mr. Prior's tax obligation arising from the vesting of previously granted Restricted Stock Units.

Read SEC document
March 07, 2023 Filed Mar 9, 2023 22:33 UTC ATN International, Inc. ATNI · Entity 24 GrantPerformance-Based Restricted Stock Units · Derivative 25,000 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001415889-23-004610 · form4-03092023_100302.xml · derivative · entry 8

PRIOR MICHAEL T · CIK 0001244465 · Director · CHAIRMAN AND CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,000

Underlying: Common Stock · 25,000 shares

Expires not disclosed

F2 · shares: Each performance-based RSU ("P SU") represents a contingent right to receive one share of the Issuer's common stock, subject to the 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 · derivative.exercise_date: Between zero (0) and 150% of the P SUs will generally vest, if at all, as of the end of the performance period on March 7, 2026.

F3 · derivative.expiration_date: Between zero (0) and 150% of the P SUs will generally vest, if at all, as of the end of the performance period on March 7, 2026.

F2 · derivative.underlying_shares: Each performance-based RSU ("P SU") represents a contingent right to receive one share of the Issuer's common stock, subject to the 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.

F2 · balance_after: Each performance-based RSU ("P SU") represents a contingent right to receive one share of the Issuer's common stock, subject to the 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.

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March 07, 2023 Filed Mar 9, 2023 22:33 UTC ATN International, Inc. ATNI · Entity 24 GrantCommon Stock 25,000 $0.00 $0.00
Disclosure

SEC source: 0001415889-23-004610 · form4-03092023_100302.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · CHAIRMAN AND CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 494,736

F1 · shares: The securities described are restricted stock units and will vest in four equal installments on each of March 7, 2024, 2025, 2026 and 2027. Upon vesting Mr. Prior will receive a number of shares of common stock equal to the number of restricted stocks units that have vested.

Read SEC document
March 07, 2023 Filed Mar 28, 2023 15:42 UTC Amendment ATN International, Inc. ATNI · Entity 24 GrantPerformance-Based Restricted Stock Units · Derivative 25,000 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001415889-23-005466 · form4a-03282023_030356.xml · derivative · entry 7

PRIOR MICHAEL T · CIK 0001244465 · Director · CHAIRMAN AND CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,000

Underlying: Common Stock · 25,000 shares

Expires not disclosed

F2 · shares: Each performance-based RSU ("P SU") represents a contingent right to receive one share of the Issuer's common stock, subject to the 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 · derivative.exercise_date: Between zero (0) and 150% of the P SUs will generally vest, if at all, as of the end of the performance period on March 7, 2026.

F3 · derivative.expiration_date: Between zero (0) and 150% of the P SUs will generally vest, if at all, as of the end of the performance period on March 7, 2026.

F2 · derivative.underlying_shares: Each performance-based RSU ("P SU") represents a contingent right to receive one share of the Issuer's common stock, subject to the 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.

F2 · balance_after: Each performance-based RSU ("P SU") represents a contingent right to receive one share of the Issuer's common stock, subject to the 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.

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March 07, 2023 Filed Mar 28, 2023 15:42 UTC Amendment ATN International, Inc. ATNI · Entity 24 GrantCommon Stock 25,000 $0.00 $0.00
Disclosure

SEC source: 0001415889-23-005466 · form4a-03282023_030356.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · CHAIRMAN AND CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 494,736

F1 · shares: The securities described are restricted stock units and will vest in four equal installments on each of March 7, 2024, 2025, 2026 and 2027. Upon vesting Mr. Prior will receive a number of shares of common stock equal to the number of restricted stocks units that have vested.

Read SEC document
March 25, 2022 Filed Mar 29, 2022 14:08 UTC ATN International, Inc. ATNI · Entity 24 GrantPerformance-Based Restricted Stock Units · Derivative 21,450 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001415889-22-003416 · form4-03292022_070342.xml · derivative · entry 7

PRIOR MICHAEL T · CIK 0001244465 · Director · CHAIRMAN AND CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,450

Underlying: Common Stock · 21,450 shares

Expires not disclosed

F2 · shares: Each performance-based RSU ("PSU") represents a contingent right to receive one share of the Issuer's common stock, subject to the 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 · derivative.exercise_date: Between zero (0) and 150% of the PSUs will generally vest, if at all, as of the end of the performance period on March 25, 2025.

F3 · derivative.expiration_date: Between zero (0) and 150% of the PSUs will generally vest, if at all, as of the end of the performance period on March 25, 2025.

F2 · derivative.underlying_shares: Each performance-based RSU ("PSU") represents a contingent right to receive one share of the Issuer's common stock, subject to the 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.

F2 · balance_after: Each performance-based RSU ("PSU") represents a contingent right to receive one share of the Issuer's common stock, subject to the 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.

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March 25, 2022 Filed Mar 29, 2022 14:08 UTC ATN International, Inc. ATNI · Entity 24 GrantCommon Stock 21,450 $0.00 $0.00
Disclosure

SEC source: 0001415889-22-003416 · form4-03292022_070342.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · CHAIRMAN AND CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 469,736

F1 · shares: The securities described are restricted stock units and will fest in four equal installments on each of March 25, 2023, 2024, 2025 and 2026. Upon vesting Mr. Prior will receive a number of shares of common stock equal to the number of restricted stocks units that have vested.

Read SEC document
March 13, 2022 Filed Mar 15, 2022 15:38 UTC ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 2,026 $35.22 $71,355.72
Disclosure

SEC source: 0001415889-22-002954 · form4-03152022_080333.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · CHAIRMAN AND CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 448,286

F1 · shares: Represents shares withheld by the Company for payment of Mr. Prior's tax obligations arising from the vesting of previously granted Restricted Stock Units.

Read SEC document
March 11, 2022 Filed Mar 14, 2022 20:32 UTC ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 2,207 $35.22 $77,730.54
Disclosure

SEC source: 0001415889-22-002932 · form4-03142022_010347.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · CHAIRMAN AND CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 450,312

F1 · shares: Represents shares withheld by the Company for payment of Mr. Prior's tax obligations arising from the vesting of previously granted Restricted Stock Units.

Read SEC document
March 09, 2022 Filed Mar 10, 2022 20:41 UTC ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 1,569 $35.35 $55,464.15
Disclosure

SEC source: 0001415889-22-002830 · form4-03102022_120339.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · CHAIRMAN AND CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 452,519

F1 · shares: Represents shares withheld by the Company for payment of Mr. Prior's Tax obligations arising from the vesting of previously granted Restricted Stock Units.

Read SEC document
March 07, 2022 Filed Mar 9, 2022 20:10 UTC ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 2,091 $33.45 $69,943.95
Disclosure

SEC source: 0001415889-22-002788 · form4-03092022_120335.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · CHAIRMAN AND CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 454,088

F1 · shares: Represents shares withheld by the Company for payment of Mr. Prior's tax obligations arising from the vesting of previously granted Restricted Stock Units.

Read SEC document
December 10, 2021 Filed Dec 14, 2021 18:15 UTC ATN International, Inc. ATNI · Entity 24 GiftCommon Stock 10,774 $0.00 $0.00
Disclosure

SEC source: 0001179110-21-010931 · edgar.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 459,544

Read SEC document
June 03, 2021 Filed Feb 10, 2022 14:30 UTC ATN International, Inc. ATNI · Entity 24 GiftCommon Stock 3,335 $0.00 $0.00
Disclosure

SEC source: 0001415889-22-001188 · form5-02102022_060241.xml · nonDerivative · entry 2

PRIOR MICHAEL T · CIK 0001244465 · Director · CHAIRMAN AND CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · Trustee of Prior Family Trust 2019

Disclosed balance after: Not disclosed

Read SEC document
June 03, 2021 Filed Feb 10, 2022 14:30 UTC ATN International, Inc. ATNI · Entity 24 GiftCommon Stock 3,335 $0.00 $0.00
Disclosure

SEC source: 0001415889-22-001188 · form5-02102022_060241.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · CHAIRMAN AND CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 456,179

F1 · balance_after: Includes adjustment to remove 30 shares incorrectly included in column 5 of Mr. Prior's previous Form 4 filing on December 10, 2021.

Read SEC document
March 13, 2021 Filed Mar 16, 2021 21:46 UTC ATN International, Inc. ATNI · Entity 24 Tax withholdingCommon Stock 2,772 $52.09 $144,393.48
Disclosure

SEC source: 0001179110-21-003485 · edgar.xml · nonDerivative · entry 1

PRIOR MICHAEL T · CIK 0001244465 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 448,770

F1 · shares: Represents shares withheld by the Company for payment of Mr. Prior's tax obligations arising from the vesting of previously granted Restricted Stock Units.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.