ATNI

SEC source: 0000929638-26-002224 · form4.xml · nonDerivative · entry 18

PRIOR CORNELIUS B JR · CIK 0000922147 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By VI E-Cell TropicalTelecom Ltd

Disclosed balance after: 107,036

SEC source: 0000929638-26-002224 · form4.xml · nonDerivative · entry 17

PRIOR CORNELIUS B JR · CIK 0000922147 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,994,303

F1 · date: This Form 4 is being filed late due to inadvertent administrative error.

F10 · kind: Represents a bona fide gift of 10,000 shares from the reporting person to a non-profit entity.

SEC source: 0000929638-26-002224 · form4.xml · nonDerivative · entry 16

PRIOR CORNELIUS B JR · CIK 0000922147 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By VI E-Cell TropicalTelecom Ltd

Disclosed balance after: 109,036

F1 · date: This Form 4 is being filed late due to inadvertent administrative error.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.30 to $28.31, inclusive. The reporting person undertakes to provide to ATN International, Inc., any security holder of ATN International, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0000929638-26-002224 · form4.xml · nonDerivative · entry 15

PRIOR CORNELIUS B JR · CIK 0000922147 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By VI E-Cell TropicalTelecom Ltd

Disclosed balance after: 115,036

F1 · date: This Form 4 is being filed late due to inadvertent administrative error.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.25 to $28.35, inclusive. The reporting person undertakes to provide to ATN International, Inc., any security holder of ATN International, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0000929638-26-002224 · form4.xml · nonDerivative · entry 14

PRIOR CORNELIUS B JR · CIK 0000922147 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By VI E-Cell TropicalTelecom Ltd

Disclosed balance after: 127,646

F1 · date: This Form 4 is being filed late due to inadvertent administrative error.

SEC source: 0000929638-26-002224 · form4.xml · nonDerivative · entry 13

PRIOR CORNELIUS B JR · CIK 0000922147 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,004,303

F1 · date: This Form 4 is being filed late due to inadvertent administrative error.

F7 · kind: Represents shares transferred by VI E-Cell to the reporting person.

SEC source: 0000929638-26-002224 · form4.xml · nonDerivative · entry 12

PRIOR CORNELIUS B JR · CIK 0000922147 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By VI E-Cell TropicalTelecom Ltd

Disclosed balance after: 130,146

F1 · date: This Form 4 is being filed late due to inadvertent administrative error.

F7 · kind: Represents shares transferred by VI E-Cell to the reporting person.

SEC source: 0000929638-26-002224 · form4.xml · nonDerivative · entry 11

PRIOR CORNELIUS B JR · CIK 0000922147 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By VI E-Cell TropicalTelecom Ltd

Disclosed balance after: 160,146

F1 · date: This Form 4 is being filed late due to inadvertent administrative error.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.00 to $28.65, inclusive. The reporting person undertakes to provide to ATN International, Inc., any security holder of ATN International, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0000929638-26-002224 · form4.xml · nonDerivative · entry 10

PRIOR CORNELIUS B JR · CIK 0000922147 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By VI E-Cell TropicalTelecom Ltd

Disclosed balance after: 177,646

F1 · date: This Form 4 is being filed late due to inadvertent administrative error.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.87 to $28.00, inclusive. The reporting person undertakes to provide to ATN International, Inc., any security holder of ATN International, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0000929638-26-002224 · form4.xml · nonDerivative · entry 9

PRIOR CORNELIUS B JR · CIK 0000922147 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By VI E-Cell TropicalTelecom Ltd

Disclosed balance after: 180,500

F1 · date: This Form 4 is being filed late due to inadvertent administrative error.

SEC source: 0000929638-26-002224 · form4.xml · nonDerivative · entry 8

PRIOR CORNELIUS B JR · CIK 0000922147 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By VI E-Cell TropicalTelecom Ltd

Disclosed balance after: 182,500

F1 · date: This Form 4 is being filed late due to inadvertent administrative error.

SEC source: 0000929638-26-002224 · form4.xml · nonDerivative · entry 7

PRIOR CORNELIUS B JR · CIK 0000922147 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By VI E-Cell Tropical Telecom Ltd

Disclosed balance after: 186,000

F1 · date: This Form 4 is being filed late due to inadvertent administrative error.

SEC source: 0000929638-26-002224 · form4.xml · nonDerivative · entry 6

PRIOR CORNELIUS B JR · CIK 0000922147 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By VI E-Cell Tropical Telecom Ltd

Disclosed balance after: 188,000

F1 · date: This Form 4 is being filed late due to inadvertent administrative error.

SEC source: 0000929638-26-002224 · form4.xml · nonDerivative · entry 5

PRIOR CORNELIUS B JR · CIK 0000922147 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By VI E-Cell TropicalTelecom Ltd

Disclosed balance after: 193,000

F1 · date: This Form 4 is being filed late due to inadvertent administrative error.

SEC source: 0000929638-26-002224 · form4.xml · nonDerivative · entry 4

PRIOR CORNELIUS B JR · CIK 0000922147 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By VI E-Cell TropicalTelecom Ltd

Disclosed balance after: 194,000

F1 · date: This Form 4 is being filed late due to inadvertent administrative error.

SEC source: 0000929638-26-002224 · form4.xml · nonDerivative · entry 3

PRIOR CORNELIUS B JR · CIK 0000922147 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By VI E-Cell TropicalTelecom Ltd

Disclosed balance after: 196,500

F1 · date: This Form 4 is being filed late due to inadvertent administrative error.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.00 to $25.75, inclusive. The reporting person undertakes to provide to ATN International, Inc., any security holder of ATN International, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0002131063-26-000004 · form4-04282026_090456.xml · derivative · entry 2

Khoury Naji · CIK 0002131063 · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,853

Underlying: Common Stock · 36,853 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 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 16, 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 16, 2029.

SEC source: 0002131063-26-000004 · form4-04282026_090456.xml · nonDerivative · entry 1

Khoury Naji · CIK 0002131063 · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,853

F1 · shares: The securities described are restricted stock units and will vest in four equal installments on each of April 24, 2027, 2028, 2029 and 2030. Upon vesting Mr. Khoury will receive a number of shares of common stock equal to the number of restricted stock units that have vested.

SEC source: 0000929638-26-002224 · form4.xml · nonDerivative · entry 2

PRIOR CORNELIUS B JR · CIK 0000922147 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By VI E-Cell TropicalTelecom Ltd

Disclosed balance after: 200,000

F1 · date: This Form 4 is being filed late due to inadvertent administrative error.

F2 · kind: Represents shares transferred by the reporting person to VI E-Cell Tropical Telecom Ltd. ("VI E-Cell"), a U.S. Virgin Islands limited company that is 80% owned by the reporting person and of which the reporting person serves as the chairman.

SEC source: 0000929638-26-002224 · form4.xml · nonDerivative · entry 1

PRIOR CORNELIUS B JR · CIK 0000922147 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,974,303

F1 · date: This Form 4 is being filed late due to inadvertent administrative error.

F2 · kind: Represents shares transferred by the reporting person to VI E-Cell Tropical Telecom Ltd. ("VI E-Cell"), a U.S. Virgin Islands limited company that is 80% owned by the reporting person and of which the reporting person serves as the chairman.

F3 · ownership.direct: In the Form 4 filed by the reporting person on April 20, 2026, the reporting person inadvertently reported indirect beneficial ownership of 363,424 shares held as trustee of a revocable trust. Such shares are not reported on this Form 4 as they are held by a 501(c)(3) foundation and the reporting person has no pecuniary interest in such shares, and as such, have been removed from this filing to correct the prior report.

SEC source: 0000922147-26-000004 · form4-04202026_070420.xml · nonDerivative · entry 1

PRIOR CORNELIUS B JR · CIK 0000922147 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,174,303

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.

SEC source: 0001735750-26-000009 · form4-03272026_090300.xml · nonDerivative · entry 1

Mabey Mary · CIK 0001735750 · SVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,402

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

SEC source: 0001739251-26-000008 · form4-03272026_090335.xml · nonDerivative · entry 1

Martin Brad W · CIK 0001739251 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 126,129

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

SEC source: 0001933213-26-000008 · form4-03272026_090358.xml · nonDerivative · entry 1

Leon Justin M · CIK 0001933213 · SVP, CORPORATE DEVELOPMENT

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,707

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

SEC source: 0001739251-26-000006 · form4-03192026_070347.xml · derivative · entry 2

Martin Brad W · CIK 0001739251 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,048

Underlying: Common Stock · 27,048 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.

SEC source: 0001739251-26-000006 · form4-03192026_070347.xml · nonDerivative · entry 1

Martin Brad W · CIK 0001739251 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 127,366

F1 · shares: 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, Mr. Martin will receive a number of shares of common stock equal to the number of restricted stock units that have vested.

SEC source: 0002013841-26-000005 · form4-03192026_070309.xml · derivative · entry 2

Doglioli Carlos · CIK 0002013841 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,032

Underlying: Common Stock · 18,032 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.

SEC source: 0002013841-26-000005 · form4-03192026_070309.xml · nonDerivative · entry 1

Doglioli Carlos · CIK 0002013841 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,449

F1 · shares: 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, Mr. Doglioli will receive a number of shares of common stock equal to the number of restricted stock units that have vested.

SEC source: 0001933213-26-000006 · form4-03192026_070333.xml · derivative · entry 2

Leon Justin M · CIK 0001933213 · SVP, CORPORATE DEVELOPMENT

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,820

Underlying: Common Stock · 10,820 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.

SEC source: 0001933213-26-000006 · form4-03192026_070333.xml · nonDerivative · entry 1

Leon Justin M · CIK 0001933213 · SVP, CORPORATE DEVELOPMENT

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,267

F1 · shares: 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 Mr. Leon will receive a number of shares of common stock equal to the number of restricted stocks units that have vested.

SEC source: 0001735750-26-000007 · form4-03192026_070351.xml · derivative · entry 2

Mabey Mary · CIK 0001735750 · SVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,624

Underlying: Common Stock · 12,624 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 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.

SEC source: 0001735750-26-000007 · form4-03192026_070351.xml · nonDerivative · entry 1

Mabey Mary · CIK 0001735750 · SVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,277

F1 · shares: 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.

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.

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.

SEC source: 0001933213-26-000004 · form4-03162026_090323.xml · nonDerivative · entry 2

Leon Justin M · CIK 0001933213 · SVP, CORPORATE DEVELOPMENT

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,447

F2 · kind: Refer to existing footnote (1)

SEC source: 0002013841-26-000003 · form4-03162026_090355.xml · nonDerivative · entry 2

Doglioli Carlos · CIK 0002013841 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,417

F2 · kind: Refer to existing footnote (1)

SEC source: 0001739251-26-000004 · form4-03162026_090320.xml · nonDerivative · entry 2

Martin Brad W · CIK 0001739251 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,318

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

SEC source: 0001735750-26-000005 · form4-03162026_090312.xml · nonDerivative · entry 2

Mabey Mary · CIK 0001735750 · SVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,653

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

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)

SEC source: 0001933213-26-000004 · form4-03162026_090323.xml · nonDerivative · entry 1

Leon Justin M · CIK 0001933213 · SVP, CORPORATE DEVELOPMENT

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,118

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

SEC source: 0002013841-26-000003 · form4-03162026_090355.xml · nonDerivative · entry 1

Doglioli Carlos · CIK 0002013841 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,248

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

SEC source: 0001739251-26-000004 · form4-03162026_090320.xml · nonDerivative · entry 1

Martin Brad W · CIK 0001739251 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 104,814

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

SEC source: 0001735750-26-000005 · form4-03162026_090312.xml · nonDerivative · entry 1

Mabey Mary · CIK 0001735750 · SVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,850

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

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.

SEC source: 0001739251-26-000002 · form4-03102026_080351.xml · derivative · entry 4

Martin Brad W · CIK 0001739251 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 11,000 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.

SEC source: 0001739251-26-000002 · form4-03102026_080351.xml · nonDerivative · entry 3

Martin Brad W · CIK 0001739251 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 107,113

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

SEC source: 0001739251-26-000002 · form4-03102026_080351.xml · nonDerivative · entry 2

Martin Brad W · CIK 0001739251 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 108,423

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

SEC source: 0001739251-26-000002 · form4-03102026_080351.xml · nonDerivative · entry 1

Martin Brad W · CIK 0001739251 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 111,203

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).

SEC source: 0001735750-26-000003 · form4-03102026_080342.xml · derivative · entry 4

Mabey Mary · CIK 0001735750 · SVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 6,600 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.