Grillo Debra

SEC source: 0001679049-26-000153 · form4.xml · derivative · entry 3

Grillo Debra · CIK 0002059275 · Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,811

Underlying: Common Stock · 904 shares

Expires not disclosed

F2 · security: These 904 restricted stock units vested on July 2, 2026 and were settled in shares of Common Stock as reported in Table I of this Form 4.

F2 · kind: These 904 restricted stock units vested on July 2, 2026 and were settled in shares of Common Stock as reported in Table I of this Form 4.

F2 · shares: These 904 restricted stock units vested on July 2, 2026 and were settled in shares of Common Stock as reported in Table I of this Form 4.

F2 · price: These 904 restricted stock units vested on July 2, 2026 and were settled in shares of Common Stock as reported in Table I of this Form 4.

F2 · derivative.exercise_date: These 904 restricted stock units vested on July 2, 2026 and were settled in shares of Common Stock as reported in Table I of this Form 4.

F2 · derivative.expiration_date: These 904 restricted stock units vested on July 2, 2026 and were settled in shares of Common Stock as reported in Table I of this Form 4.

F2 · derivative.underlying: These 904 restricted stock units vested on July 2, 2026 and were settled in shares of Common Stock as reported in Table I of this Form 4.

F2 · derivative.underlying_shares: These 904 restricted stock units vested on July 2, 2026 and were settled in shares of Common Stock as reported in Table I of this Form 4.

F2 · balance_after: These 904 restricted stock units vested on July 2, 2026 and were settled in shares of Common Stock as reported in Table I of this Form 4.

SEC source: 0001679049-26-000153 · form4.xml · nonDerivative · entry 2

Grillo Debra · CIK 0002059275 · Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,763

F1 · kind: These 904 shares of Common Stock were acquired upon the vesting of 904 restricted stock units on July 2, 2026 pursuant to the International Seaways, Inc. 2025 Management Incentive Plan (the "Plan") which vested units settled in shares of Common Stock. In connection with the vesting of the units, 326 shares were withheld by International Seaways, Inc. ("INSW") in payment of the Reporting Person's tax withholding liability incurred as a result of the vesting of the units.

F1 · shares: These 904 shares of Common Stock were acquired upon the vesting of 904 restricted stock units on July 2, 2026 pursuant to the International Seaways, Inc. 2025 Management Incentive Plan (the "Plan") which vested units settled in shares of Common Stock. In connection with the vesting of the units, 326 shares were withheld by International Seaways, Inc. ("INSW") in payment of the Reporting Person's tax withholding liability incurred as a result of the vesting of the units.

F1 · price: These 904 shares of Common Stock were acquired upon the vesting of 904 restricted stock units on July 2, 2026 pursuant to the International Seaways, Inc. 2025 Management Incentive Plan (the "Plan") which vested units settled in shares of Common Stock. In connection with the vesting of the units, 326 shares were withheld by International Seaways, Inc. ("INSW") in payment of the Reporting Person's tax withholding liability incurred as a result of the vesting of the units.

F1 · balance_after: These 904 shares of Common Stock were acquired upon the vesting of 904 restricted stock units on July 2, 2026 pursuant to the International Seaways, Inc. 2025 Management Incentive Plan (the "Plan") which vested units settled in shares of Common Stock. In connection with the vesting of the units, 326 shares were withheld by International Seaways, Inc. ("INSW") in payment of the Reporting Person's tax withholding liability incurred as a result of the vesting of the units.

SEC source: 0001679049-26-000153 · form4.xml · nonDerivative · entry 1

Grillo Debra · CIK 0002059275 · Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,089

F1 · kind: These 904 shares of Common Stock were acquired upon the vesting of 904 restricted stock units on July 2, 2026 pursuant to the International Seaways, Inc. 2025 Management Incentive Plan (the "Plan") which vested units settled in shares of Common Stock. In connection with the vesting of the units, 326 shares were withheld by International Seaways, Inc. ("INSW") in payment of the Reporting Person's tax withholding liability incurred as a result of the vesting of the units.

F1 · shares: These 904 shares of Common Stock were acquired upon the vesting of 904 restricted stock units on July 2, 2026 pursuant to the International Seaways, Inc. 2025 Management Incentive Plan (the "Plan") which vested units settled in shares of Common Stock. In connection with the vesting of the units, 326 shares were withheld by International Seaways, Inc. ("INSW") in payment of the Reporting Person's tax withholding liability incurred as a result of the vesting of the units.

F1 · price: These 904 shares of Common Stock were acquired upon the vesting of 904 restricted stock units on July 2, 2026 pursuant to the International Seaways, Inc. 2025 Management Incentive Plan (the "Plan") which vested units settled in shares of Common Stock. In connection with the vesting of the units, 326 shares were withheld by International Seaways, Inc. ("INSW") in payment of the Reporting Person's tax withholding liability incurred as a result of the vesting of the units.

F1 · balance_after: These 904 shares of Common Stock were acquired upon the vesting of 904 restricted stock units on July 2, 2026 pursuant to the International Seaways, Inc. 2025 Management Incentive Plan (the "Plan") which vested units settled in shares of Common Stock. In connection with the vesting of the units, 326 shares were withheld by International Seaways, Inc. ("INSW") in payment of the Reporting Person's tax withholding liability incurred as a result of the vesting of the units.

SEC source: 0001679049-26-000066 · form4.xml · derivative · entry 2

Grillo Debra · CIK 0002059275 · Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,478

Underlying: Common Stock · 1,478 shares

Expires not disclosed

F2 · security: On March 10, 2026, INSW granted the Reporting Person pursuant to the 2025 Plan, 1,478 performance restricted stock units (PRSUs). Achievement under the PRSUs will be measured using an operating performance metric (return on invested capital, or ROIC) and a market performance metric (total shareholder return, or TSR, relative to the TSR of a peer group of companies), in each case measured over the three-year period beginning on January 2, 2026 and ending on December 31, 2028. Each metric relates to half of the PRSUs granted.

F3 · security: These PRSUs represent the right to receive an equivalent number of shares of INSW Common Stock (net of any shares deducted for applicable taxes and other withholdings) if and when the PRSUs vest, assuming a performance factor of 100% achievement. The PRSU grants are subject (so long as at least the minimum performance threshold is achieved) to increase or decrease pursuant to a performance factor that may range from 50% to 150%. The number of shares vesting, if any, will be reported after the Compensation Committee of the Issuer's Board of Directors certifies the achievement of the applicable performance metric following the end of the measurement period.

F2 · date: On March 10, 2026, INSW granted the Reporting Person pursuant to the 2025 Plan, 1,478 performance restricted stock units (PRSUs). Achievement under the PRSUs will be measured using an operating performance metric (return on invested capital, or ROIC) and a market performance metric (total shareholder return, or TSR, relative to the TSR of a peer group of companies), in each case measured over the three-year period beginning on January 2, 2026 and ending on December 31, 2028. Each metric relates to half of the PRSUs granted.

F3 · date: These PRSUs represent the right to receive an equivalent number of shares of INSW Common Stock (net of any shares deducted for applicable taxes and other withholdings) if and when the PRSUs vest, assuming a performance factor of 100% achievement. The PRSU grants are subject (so long as at least the minimum performance threshold is achieved) to increase or decrease pursuant to a performance factor that may range from 50% to 150%. The number of shares vesting, if any, will be reported after the Compensation Committee of the Issuer's Board of Directors certifies the achievement of the applicable performance metric following the end of the measurement period.

F2 · kind: On March 10, 2026, INSW granted the Reporting Person pursuant to the 2025 Plan, 1,478 performance restricted stock units (PRSUs). Achievement under the PRSUs will be measured using an operating performance metric (return on invested capital, or ROIC) and a market performance metric (total shareholder return, or TSR, relative to the TSR of a peer group of companies), in each case measured over the three-year period beginning on January 2, 2026 and ending on December 31, 2028. Each metric relates to half of the PRSUs granted.

F3 · kind: These PRSUs represent the right to receive an equivalent number of shares of INSW Common Stock (net of any shares deducted for applicable taxes and other withholdings) if and when the PRSUs vest, assuming a performance factor of 100% achievement. The PRSU grants are subject (so long as at least the minimum performance threshold is achieved) to increase or decrease pursuant to a performance factor that may range from 50% to 150%. The number of shares vesting, if any, will be reported after the Compensation Committee of the Issuer's Board of Directors certifies the achievement of the applicable performance metric following the end of the measurement period.

F2 · shares: On March 10, 2026, INSW granted the Reporting Person pursuant to the 2025 Plan, 1,478 performance restricted stock units (PRSUs). Achievement under the PRSUs will be measured using an operating performance metric (return on invested capital, or ROIC) and a market performance metric (total shareholder return, or TSR, relative to the TSR of a peer group of companies), in each case measured over the three-year period beginning on January 2, 2026 and ending on December 31, 2028. Each metric relates to half of the PRSUs granted.

F3 · shares: These PRSUs represent the right to receive an equivalent number of shares of INSW Common Stock (net of any shares deducted for applicable taxes and other withholdings) if and when the PRSUs vest, assuming a performance factor of 100% achievement. The PRSU grants are subject (so long as at least the minimum performance threshold is achieved) to increase or decrease pursuant to a performance factor that may range from 50% to 150%. The number of shares vesting, if any, will be reported after the Compensation Committee of the Issuer's Board of Directors certifies the achievement of the applicable performance metric following the end of the measurement period.

F2 · price: On March 10, 2026, INSW granted the Reporting Person pursuant to the 2025 Plan, 1,478 performance restricted stock units (PRSUs). Achievement under the PRSUs will be measured using an operating performance metric (return on invested capital, or ROIC) and a market performance metric (total shareholder return, or TSR, relative to the TSR of a peer group of companies), in each case measured over the three-year period beginning on January 2, 2026 and ending on December 31, 2028. Each metric relates to half of the PRSUs granted.

F3 · price: These PRSUs represent the right to receive an equivalent number of shares of INSW Common Stock (net of any shares deducted for applicable taxes and other withholdings) if and when the PRSUs vest, assuming a performance factor of 100% achievement. The PRSU grants are subject (so long as at least the minimum performance threshold is achieved) to increase or decrease pursuant to a performance factor that may range from 50% to 150%. The number of shares vesting, if any, will be reported after the Compensation Committee of the Issuer's Board of Directors certifies the achievement of the applicable performance metric following the end of the measurement period.

F2 · derivative.exercise_date: On March 10, 2026, INSW granted the Reporting Person pursuant to the 2025 Plan, 1,478 performance restricted stock units (PRSUs). Achievement under the PRSUs will be measured using an operating performance metric (return on invested capital, or ROIC) and a market performance metric (total shareholder return, or TSR, relative to the TSR of a peer group of companies), in each case measured over the three-year period beginning on January 2, 2026 and ending on December 31, 2028. Each metric relates to half of the PRSUs granted.

F3 · derivative.exercise_date: These PRSUs represent the right to receive an equivalent number of shares of INSW Common Stock (net of any shares deducted for applicable taxes and other withholdings) if and when the PRSUs vest, assuming a performance factor of 100% achievement. The PRSU grants are subject (so long as at least the minimum performance threshold is achieved) to increase or decrease pursuant to a performance factor that may range from 50% to 150%. The number of shares vesting, if any, will be reported after the Compensation Committee of the Issuer's Board of Directors certifies the achievement of the applicable performance metric following the end of the measurement period.

F2 · derivative.expiration_date: On March 10, 2026, INSW granted the Reporting Person pursuant to the 2025 Plan, 1,478 performance restricted stock units (PRSUs). Achievement under the PRSUs will be measured using an operating performance metric (return on invested capital, or ROIC) and a market performance metric (total shareholder return, or TSR, relative to the TSR of a peer group of companies), in each case measured over the three-year period beginning on January 2, 2026 and ending on December 31, 2028. Each metric relates to half of the PRSUs granted.

F3 · derivative.expiration_date: These PRSUs represent the right to receive an equivalent number of shares of INSW Common Stock (net of any shares deducted for applicable taxes and other withholdings) if and when the PRSUs vest, assuming a performance factor of 100% achievement. The PRSU grants are subject (so long as at least the minimum performance threshold is achieved) to increase or decrease pursuant to a performance factor that may range from 50% to 150%. The number of shares vesting, if any, will be reported after the Compensation Committee of the Issuer's Board of Directors certifies the achievement of the applicable performance metric following the end of the measurement period.

F2 · derivative.underlying: On March 10, 2026, INSW granted the Reporting Person pursuant to the 2025 Plan, 1,478 performance restricted stock units (PRSUs). Achievement under the PRSUs will be measured using an operating performance metric (return on invested capital, or ROIC) and a market performance metric (total shareholder return, or TSR, relative to the TSR of a peer group of companies), in each case measured over the three-year period beginning on January 2, 2026 and ending on December 31, 2028. Each metric relates to half of the PRSUs granted.

F3 · derivative.underlying: These PRSUs represent the right to receive an equivalent number of shares of INSW Common Stock (net of any shares deducted for applicable taxes and other withholdings) if and when the PRSUs vest, assuming a performance factor of 100% achievement. The PRSU grants are subject (so long as at least the minimum performance threshold is achieved) to increase or decrease pursuant to a performance factor that may range from 50% to 150%. The number of shares vesting, if any, will be reported after the Compensation Committee of the Issuer's Board of Directors certifies the achievement of the applicable performance metric following the end of the measurement period.

F2 · derivative.underlying_shares: On March 10, 2026, INSW granted the Reporting Person pursuant to the 2025 Plan, 1,478 performance restricted stock units (PRSUs). Achievement under the PRSUs will be measured using an operating performance metric (return on invested capital, or ROIC) and a market performance metric (total shareholder return, or TSR, relative to the TSR of a peer group of companies), in each case measured over the three-year period beginning on January 2, 2026 and ending on December 31, 2028. Each metric relates to half of the PRSUs granted.

F3 · derivative.underlying_shares: These PRSUs represent the right to receive an equivalent number of shares of INSW Common Stock (net of any shares deducted for applicable taxes and other withholdings) if and when the PRSUs vest, assuming a performance factor of 100% achievement. The PRSU grants are subject (so long as at least the minimum performance threshold is achieved) to increase or decrease pursuant to a performance factor that may range from 50% to 150%. The number of shares vesting, if any, will be reported after the Compensation Committee of the Issuer's Board of Directors certifies the achievement of the applicable performance metric following the end of the measurement period.

F2 · balance_after: On March 10, 2026, INSW granted the Reporting Person pursuant to the 2025 Plan, 1,478 performance restricted stock units (PRSUs). Achievement under the PRSUs will be measured using an operating performance metric (return on invested capital, or ROIC) and a market performance metric (total shareholder return, or TSR, relative to the TSR of a peer group of companies), in each case measured over the three-year period beginning on January 2, 2026 and ending on December 31, 2028. Each metric relates to half of the PRSUs granted.

F3 · balance_after: These PRSUs represent the right to receive an equivalent number of shares of INSW Common Stock (net of any shares deducted for applicable taxes and other withholdings) if and when the PRSUs vest, assuming a performance factor of 100% achievement. The PRSU grants are subject (so long as at least the minimum performance threshold is achieved) to increase or decrease pursuant to a performance factor that may range from 50% to 150%. The number of shares vesting, if any, will be reported after the Compensation Committee of the Issuer's Board of Directors certifies the achievement of the applicable performance metric following the end of the measurement period.

SEC source: 0001679049-26-000066 · form4.xml · derivative · entry 1

Grillo Debra · CIK 0002059275 · Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,479

Underlying: Common Stock · 1,479 shares

Expires not disclosed

F1 · security: On March 10, 2026, INSW granted the Reporting Person pursuant to the International Seaways 2025 Management Incentive Plan ("the "2025 Plan") 1,479 restricted stock units which units vest as to one-third of such units on each of the first, second and third anniversaries of the date of the grant. Each unit represents the right to acquire one share of Common Stock. Settlement of vested units which may be in either shares of Common Stock or cash as determined by the Human Resources and Compensation Committee of the Board in its discretion, and will be net of any shares deducted for applicable taxes and other withholdings.

F1 · date: On March 10, 2026, INSW granted the Reporting Person pursuant to the International Seaways 2025 Management Incentive Plan ("the "2025 Plan") 1,479 restricted stock units which units vest as to one-third of such units on each of the first, second and third anniversaries of the date of the grant. Each unit represents the right to acquire one share of Common Stock. Settlement of vested units which may be in either shares of Common Stock or cash as determined by the Human Resources and Compensation Committee of the Board in its discretion, and will be net of any shares deducted for applicable taxes and other withholdings.

F1 · kind: On March 10, 2026, INSW granted the Reporting Person pursuant to the International Seaways 2025 Management Incentive Plan ("the "2025 Plan") 1,479 restricted stock units which units vest as to one-third of such units on each of the first, second and third anniversaries of the date of the grant. Each unit represents the right to acquire one share of Common Stock. Settlement of vested units which may be in either shares of Common Stock or cash as determined by the Human Resources and Compensation Committee of the Board in its discretion, and will be net of any shares deducted for applicable taxes and other withholdings.

F1 · shares: On March 10, 2026, INSW granted the Reporting Person pursuant to the International Seaways 2025 Management Incentive Plan ("the "2025 Plan") 1,479 restricted stock units which units vest as to one-third of such units on each of the first, second and third anniversaries of the date of the grant. Each unit represents the right to acquire one share of Common Stock. Settlement of vested units which may be in either shares of Common Stock or cash as determined by the Human Resources and Compensation Committee of the Board in its discretion, and will be net of any shares deducted for applicable taxes and other withholdings.

F1 · price: On March 10, 2026, INSW granted the Reporting Person pursuant to the International Seaways 2025 Management Incentive Plan ("the "2025 Plan") 1,479 restricted stock units which units vest as to one-third of such units on each of the first, second and third anniversaries of the date of the grant. Each unit represents the right to acquire one share of Common Stock. Settlement of vested units which may be in either shares of Common Stock or cash as determined by the Human Resources and Compensation Committee of the Board in its discretion, and will be net of any shares deducted for applicable taxes and other withholdings.

F1 · derivative.exercise_date: On March 10, 2026, INSW granted the Reporting Person pursuant to the International Seaways 2025 Management Incentive Plan ("the "2025 Plan") 1,479 restricted stock units which units vest as to one-third of such units on each of the first, second and third anniversaries of the date of the grant. Each unit represents the right to acquire one share of Common Stock. Settlement of vested units which may be in either shares of Common Stock or cash as determined by the Human Resources and Compensation Committee of the Board in its discretion, and will be net of any shares deducted for applicable taxes and other withholdings.

F1 · derivative.expiration_date: On March 10, 2026, INSW granted the Reporting Person pursuant to the International Seaways 2025 Management Incentive Plan ("the "2025 Plan") 1,479 restricted stock units which units vest as to one-third of such units on each of the first, second and third anniversaries of the date of the grant. Each unit represents the right to acquire one share of Common Stock. Settlement of vested units which may be in either shares of Common Stock or cash as determined by the Human Resources and Compensation Committee of the Board in its discretion, and will be net of any shares deducted for applicable taxes and other withholdings.

F1 · derivative.underlying: On March 10, 2026, INSW granted the Reporting Person pursuant to the International Seaways 2025 Management Incentive Plan ("the "2025 Plan") 1,479 restricted stock units which units vest as to one-third of such units on each of the first, second and third anniversaries of the date of the grant. Each unit represents the right to acquire one share of Common Stock. Settlement of vested units which may be in either shares of Common Stock or cash as determined by the Human Resources and Compensation Committee of the Board in its discretion, and will be net of any shares deducted for applicable taxes and other withholdings.

F1 · derivative.underlying_shares: On March 10, 2026, INSW granted the Reporting Person pursuant to the International Seaways 2025 Management Incentive Plan ("the "2025 Plan") 1,479 restricted stock units which units vest as to one-third of such units on each of the first, second and third anniversaries of the date of the grant. Each unit represents the right to acquire one share of Common Stock. Settlement of vested units which may be in either shares of Common Stock or cash as determined by the Human Resources and Compensation Committee of the Board in its discretion, and will be net of any shares deducted for applicable taxes and other withholdings.

F1 · balance_after: On March 10, 2026, INSW granted the Reporting Person pursuant to the International Seaways 2025 Management Incentive Plan ("the "2025 Plan") 1,479 restricted stock units which units vest as to one-third of such units on each of the first, second and third anniversaries of the date of the grant. Each unit represents the right to acquire one share of Common Stock. Settlement of vested units which may be in either shares of Common Stock or cash as determined by the Human Resources and Compensation Committee of the Board in its discretion, and will be net of any shares deducted for applicable taxes and other withholdings.

SEC source: 0001679049-26-000048 · form4.xml · nonDerivative · entry 1

Grillo Debra · CIK 0002059275 · Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,185

SEC source: 0001679049-26-000008 · form4.xml · nonDerivative · entry 2

Grillo Debra · CIK 0002059275 · Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,574

F1 · kind: These 1,944 shares of Common Stock are being acquired in connection with the vesting of 1,944 restricted stock units on October 24, 2025 pursuant to the International Seaways, Inc. 2020 Management Incentive Compensation Plan (the "2020 Plan") which vested units are being settled in shares of Common Stock. The 1,944 restricted stock units were granted on April 24, 2024. In connection with the vesting of the 1,944 units, 759 shares are being withheld by International Seaways, Inc. in partial payment of the Reporting Person's tax withholding liability incurred as a result of the vesting of the units. This Form 4 is being filed late due to administrative oversight.

F1 · shares: These 1,944 shares of Common Stock are being acquired in connection with the vesting of 1,944 restricted stock units on October 24, 2025 pursuant to the International Seaways, Inc. 2020 Management Incentive Compensation Plan (the "2020 Plan") which vested units are being settled in shares of Common Stock. The 1,944 restricted stock units were granted on April 24, 2024. In connection with the vesting of the 1,944 units, 759 shares are being withheld by International Seaways, Inc. in partial payment of the Reporting Person's tax withholding liability incurred as a result of the vesting of the units. This Form 4 is being filed late due to administrative oversight.

F1 · price: These 1,944 shares of Common Stock are being acquired in connection with the vesting of 1,944 restricted stock units on October 24, 2025 pursuant to the International Seaways, Inc. 2020 Management Incentive Compensation Plan (the "2020 Plan") which vested units are being settled in shares of Common Stock. The 1,944 restricted stock units were granted on April 24, 2024. In connection with the vesting of the 1,944 units, 759 shares are being withheld by International Seaways, Inc. in partial payment of the Reporting Person's tax withholding liability incurred as a result of the vesting of the units. This Form 4 is being filed late due to administrative oversight.

SEC source: 0001679049-26-000008 · form4.xml · nonDerivative · entry 1

Grillo Debra · CIK 0002059275 · Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,333

F1 · kind: These 1,944 shares of Common Stock are being acquired in connection with the vesting of 1,944 restricted stock units on October 24, 2025 pursuant to the International Seaways, Inc. 2020 Management Incentive Compensation Plan (the "2020 Plan") which vested units are being settled in shares of Common Stock. The 1,944 restricted stock units were granted on April 24, 2024. In connection with the vesting of the 1,944 units, 759 shares are being withheld by International Seaways, Inc. in partial payment of the Reporting Person's tax withholding liability incurred as a result of the vesting of the units. This Form 4 is being filed late due to administrative oversight.

F1 · shares: These 1,944 shares of Common Stock are being acquired in connection with the vesting of 1,944 restricted stock units on October 24, 2025 pursuant to the International Seaways, Inc. 2020 Management Incentive Compensation Plan (the "2020 Plan") which vested units are being settled in shares of Common Stock. The 1,944 restricted stock units were granted on April 24, 2024. In connection with the vesting of the 1,944 units, 759 shares are being withheld by International Seaways, Inc. in partial payment of the Reporting Person's tax withholding liability incurred as a result of the vesting of the units. This Form 4 is being filed late due to administrative oversight.

F1 · price: These 1,944 shares of Common Stock are being acquired in connection with the vesting of 1,944 restricted stock units on October 24, 2025 pursuant to the International Seaways, Inc. 2020 Management Incentive Compensation Plan (the "2020 Plan") which vested units are being settled in shares of Common Stock. The 1,944 restricted stock units were granted on April 24, 2024. In connection with the vesting of the 1,944 units, 759 shares are being withheld by International Seaways, Inc. in partial payment of the Reporting Person's tax withholding liability incurred as a result of the vesting of the units. This Form 4 is being filed late due to administrative oversight.

SEC source: 0001679049-26-000008 · form4.xml · derivative · entry 4

Grillo Debra · CIK 0002059275 · Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,714

Underlying: Common Stock · 2,714 shares

Expires not disclosed

F3 · security: On July 3, 2025, INSW granted the Reporting Person pursuant to the 2025 Plan, 2,714 performance restricted stock units (PRSUs). Achievement under the PRSUs will be measured using an operating performance metric (return on invested capital, or ROIC) and a market performance metric (total shareholder return, or TSR, relative to the TSR of a peer group or companies), in each case measured over the three-year period beginning on January 2, 2025 and ending on December 31, 2027. Each metric relates to half of the PRSUs granted.

F4 · security: These PRSUs represent the right to receive an equivalent number of shares of INSW Common Stock (net of any shares deducted for applicable taxes and other withholdings) if and when the PRSUs vest, assuming a performance factor of 100% achievement. The PRSU grants are subject (so long as at least the minimum performance threshold is achieved) to increase or decrease pursuant to a performance factor that may range from 50% to 150%. The number of shares vesting, if any, will be reported after the Compensation Committee of the Issuer's Board of Directors certifies the achievement of the applicable performance metric following the end of the measurement period.

F3 · date: On July 3, 2025, INSW granted the Reporting Person pursuant to the 2025 Plan, 2,714 performance restricted stock units (PRSUs). Achievement under the PRSUs will be measured using an operating performance metric (return on invested capital, or ROIC) and a market performance metric (total shareholder return, or TSR, relative to the TSR of a peer group or companies), in each case measured over the three-year period beginning on January 2, 2025 and ending on December 31, 2027. Each metric relates to half of the PRSUs granted.

F4 · date: These PRSUs represent the right to receive an equivalent number of shares of INSW Common Stock (net of any shares deducted for applicable taxes and other withholdings) if and when the PRSUs vest, assuming a performance factor of 100% achievement. The PRSU grants are subject (so long as at least the minimum performance threshold is achieved) to increase or decrease pursuant to a performance factor that may range from 50% to 150%. The number of shares vesting, if any, will be reported after the Compensation Committee of the Issuer's Board of Directors certifies the achievement of the applicable performance metric following the end of the measurement period.

F3 · kind: On July 3, 2025, INSW granted the Reporting Person pursuant to the 2025 Plan, 2,714 performance restricted stock units (PRSUs). Achievement under the PRSUs will be measured using an operating performance metric (return on invested capital, or ROIC) and a market performance metric (total shareholder return, or TSR, relative to the TSR of a peer group or companies), in each case measured over the three-year period beginning on January 2, 2025 and ending on December 31, 2027. Each metric relates to half of the PRSUs granted.

F4 · kind: These PRSUs represent the right to receive an equivalent number of shares of INSW Common Stock (net of any shares deducted for applicable taxes and other withholdings) if and when the PRSUs vest, assuming a performance factor of 100% achievement. The PRSU grants are subject (so long as at least the minimum performance threshold is achieved) to increase or decrease pursuant to a performance factor that may range from 50% to 150%. The number of shares vesting, if any, will be reported after the Compensation Committee of the Issuer's Board of Directors certifies the achievement of the applicable performance metric following the end of the measurement period.

F3 · shares: On July 3, 2025, INSW granted the Reporting Person pursuant to the 2025 Plan, 2,714 performance restricted stock units (PRSUs). Achievement under the PRSUs will be measured using an operating performance metric (return on invested capital, or ROIC) and a market performance metric (total shareholder return, or TSR, relative to the TSR of a peer group or companies), in each case measured over the three-year period beginning on January 2, 2025 and ending on December 31, 2027. Each metric relates to half of the PRSUs granted.

F4 · shares: These PRSUs represent the right to receive an equivalent number of shares of INSW Common Stock (net of any shares deducted for applicable taxes and other withholdings) if and when the PRSUs vest, assuming a performance factor of 100% achievement. The PRSU grants are subject (so long as at least the minimum performance threshold is achieved) to increase or decrease pursuant to a performance factor that may range from 50% to 150%. The number of shares vesting, if any, will be reported after the Compensation Committee of the Issuer's Board of Directors certifies the achievement of the applicable performance metric following the end of the measurement period.

F3 · price: On July 3, 2025, INSW granted the Reporting Person pursuant to the 2025 Plan, 2,714 performance restricted stock units (PRSUs). Achievement under the PRSUs will be measured using an operating performance metric (return on invested capital, or ROIC) and a market performance metric (total shareholder return, or TSR, relative to the TSR of a peer group or companies), in each case measured over the three-year period beginning on January 2, 2025 and ending on December 31, 2027. Each metric relates to half of the PRSUs granted.

F4 · price: These PRSUs represent the right to receive an equivalent number of shares of INSW Common Stock (net of any shares deducted for applicable taxes and other withholdings) if and when the PRSUs vest, assuming a performance factor of 100% achievement. The PRSU grants are subject (so long as at least the minimum performance threshold is achieved) to increase or decrease pursuant to a performance factor that may range from 50% to 150%. The number of shares vesting, if any, will be reported after the Compensation Committee of the Issuer's Board of Directors certifies the achievement of the applicable performance metric following the end of the measurement period.

F3 · derivative.exercise_date: On July 3, 2025, INSW granted the Reporting Person pursuant to the 2025 Plan, 2,714 performance restricted stock units (PRSUs). Achievement under the PRSUs will be measured using an operating performance metric (return on invested capital, or ROIC) and a market performance metric (total shareholder return, or TSR, relative to the TSR of a peer group or companies), in each case measured over the three-year period beginning on January 2, 2025 and ending on December 31, 2027. Each metric relates to half of the PRSUs granted.

F4 · derivative.exercise_date: These PRSUs represent the right to receive an equivalent number of shares of INSW Common Stock (net of any shares deducted for applicable taxes and other withholdings) if and when the PRSUs vest, assuming a performance factor of 100% achievement. The PRSU grants are subject (so long as at least the minimum performance threshold is achieved) to increase or decrease pursuant to a performance factor that may range from 50% to 150%. The number of shares vesting, if any, will be reported after the Compensation Committee of the Issuer's Board of Directors certifies the achievement of the applicable performance metric following the end of the measurement period.

F3 · derivative.expiration_date: On July 3, 2025, INSW granted the Reporting Person pursuant to the 2025 Plan, 2,714 performance restricted stock units (PRSUs). Achievement under the PRSUs will be measured using an operating performance metric (return on invested capital, or ROIC) and a market performance metric (total shareholder return, or TSR, relative to the TSR of a peer group or companies), in each case measured over the three-year period beginning on January 2, 2025 and ending on December 31, 2027. Each metric relates to half of the PRSUs granted.

F4 · derivative.expiration_date: These PRSUs represent the right to receive an equivalent number of shares of INSW Common Stock (net of any shares deducted for applicable taxes and other withholdings) if and when the PRSUs vest, assuming a performance factor of 100% achievement. The PRSU grants are subject (so long as at least the minimum performance threshold is achieved) to increase or decrease pursuant to a performance factor that may range from 50% to 150%. The number of shares vesting, if any, will be reported after the Compensation Committee of the Issuer's Board of Directors certifies the achievement of the applicable performance metric following the end of the measurement period.

F3 · derivative.underlying: On July 3, 2025, INSW granted the Reporting Person pursuant to the 2025 Plan, 2,714 performance restricted stock units (PRSUs). Achievement under the PRSUs will be measured using an operating performance metric (return on invested capital, or ROIC) and a market performance metric (total shareholder return, or TSR, relative to the TSR of a peer group or companies), in each case measured over the three-year period beginning on January 2, 2025 and ending on December 31, 2027. Each metric relates to half of the PRSUs granted.

F4 · derivative.underlying: These PRSUs represent the right to receive an equivalent number of shares of INSW Common Stock (net of any shares deducted for applicable taxes and other withholdings) if and when the PRSUs vest, assuming a performance factor of 100% achievement. The PRSU grants are subject (so long as at least the minimum performance threshold is achieved) to increase or decrease pursuant to a performance factor that may range from 50% to 150%. The number of shares vesting, if any, will be reported after the Compensation Committee of the Issuer's Board of Directors certifies the achievement of the applicable performance metric following the end of the measurement period.

F3 · derivative.underlying_shares: On July 3, 2025, INSW granted the Reporting Person pursuant to the 2025 Plan, 2,714 performance restricted stock units (PRSUs). Achievement under the PRSUs will be measured using an operating performance metric (return on invested capital, or ROIC) and a market performance metric (total shareholder return, or TSR, relative to the TSR of a peer group or companies), in each case measured over the three-year period beginning on January 2, 2025 and ending on December 31, 2027. Each metric relates to half of the PRSUs granted.

F4 · derivative.underlying_shares: These PRSUs represent the right to receive an equivalent number of shares of INSW Common Stock (net of any shares deducted for applicable taxes and other withholdings) if and when the PRSUs vest, assuming a performance factor of 100% achievement. The PRSU grants are subject (so long as at least the minimum performance threshold is achieved) to increase or decrease pursuant to a performance factor that may range from 50% to 150%. The number of shares vesting, if any, will be reported after the Compensation Committee of the Issuer's Board of Directors certifies the achievement of the applicable performance metric following the end of the measurement period.

F3 · balance_after: On July 3, 2025, INSW granted the Reporting Person pursuant to the 2025 Plan, 2,714 performance restricted stock units (PRSUs). Achievement under the PRSUs will be measured using an operating performance metric (return on invested capital, or ROIC) and a market performance metric (total shareholder return, or TSR, relative to the TSR of a peer group or companies), in each case measured over the three-year period beginning on January 2, 2025 and ending on December 31, 2027. Each metric relates to half of the PRSUs granted.

F4 · balance_after: These PRSUs represent the right to receive an equivalent number of shares of INSW Common Stock (net of any shares deducted for applicable taxes and other withholdings) if and when the PRSUs vest, assuming a performance factor of 100% achievement. The PRSU grants are subject (so long as at least the minimum performance threshold is achieved) to increase or decrease pursuant to a performance factor that may range from 50% to 150%. The number of shares vesting, if any, will be reported after the Compensation Committee of the Issuer's Board of Directors certifies the achievement of the applicable performance metric following the end of the measurement period.

SEC source: 0001679049-26-000008 · form4.xml · derivative · entry 3

Grillo Debra · CIK 0002059275 · Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,715

Underlying: Common Stock · 2,715 shares

Expires not disclosed

F2 · security: On July 3, 2025, INSW granted the Reporting Person pursuant to the International Seaways 2025 Management Incentive Plan (the "2025 Plan") 2,715 restricted stock units which units vest as to one-third of such units on each of the first, second and third anniversaries of the date of the grant. Each unit represents the right to acquire one share of Common Stock. Settlement of vested units which may be in either shares of Common Stock or cash as determined by the Human Resources and Compensation Committee of the Board in its discretion, and will be net of any shares deducted for applicable taxes and other withholdings.

F2 · date: On July 3, 2025, INSW granted the Reporting Person pursuant to the International Seaways 2025 Management Incentive Plan (the "2025 Plan") 2,715 restricted stock units which units vest as to one-third of such units on each of the first, second and third anniversaries of the date of the grant. Each unit represents the right to acquire one share of Common Stock. Settlement of vested units which may be in either shares of Common Stock or cash as determined by the Human Resources and Compensation Committee of the Board in its discretion, and will be net of any shares deducted for applicable taxes and other withholdings.

F2 · kind: On July 3, 2025, INSW granted the Reporting Person pursuant to the International Seaways 2025 Management Incentive Plan (the "2025 Plan") 2,715 restricted stock units which units vest as to one-third of such units on each of the first, second and third anniversaries of the date of the grant. Each unit represents the right to acquire one share of Common Stock. Settlement of vested units which may be in either shares of Common Stock or cash as determined by the Human Resources and Compensation Committee of the Board in its discretion, and will be net of any shares deducted for applicable taxes and other withholdings.

F2 · shares: On July 3, 2025, INSW granted the Reporting Person pursuant to the International Seaways 2025 Management Incentive Plan (the "2025 Plan") 2,715 restricted stock units which units vest as to one-third of such units on each of the first, second and third anniversaries of the date of the grant. Each unit represents the right to acquire one share of Common Stock. Settlement of vested units which may be in either shares of Common Stock or cash as determined by the Human Resources and Compensation Committee of the Board in its discretion, and will be net of any shares deducted for applicable taxes and other withholdings.

F2 · price: On July 3, 2025, INSW granted the Reporting Person pursuant to the International Seaways 2025 Management Incentive Plan (the "2025 Plan") 2,715 restricted stock units which units vest as to one-third of such units on each of the first, second and third anniversaries of the date of the grant. Each unit represents the right to acquire one share of Common Stock. Settlement of vested units which may be in either shares of Common Stock or cash as determined by the Human Resources and Compensation Committee of the Board in its discretion, and will be net of any shares deducted for applicable taxes and other withholdings.

F2 · derivative.exercise_date: On July 3, 2025, INSW granted the Reporting Person pursuant to the International Seaways 2025 Management Incentive Plan (the "2025 Plan") 2,715 restricted stock units which units vest as to one-third of such units on each of the first, second and third anniversaries of the date of the grant. Each unit represents the right to acquire one share of Common Stock. Settlement of vested units which may be in either shares of Common Stock or cash as determined by the Human Resources and Compensation Committee of the Board in its discretion, and will be net of any shares deducted for applicable taxes and other withholdings.

F2 · derivative.expiration_date: On July 3, 2025, INSW granted the Reporting Person pursuant to the International Seaways 2025 Management Incentive Plan (the "2025 Plan") 2,715 restricted stock units which units vest as to one-third of such units on each of the first, second and third anniversaries of the date of the grant. Each unit represents the right to acquire one share of Common Stock. Settlement of vested units which may be in either shares of Common Stock or cash as determined by the Human Resources and Compensation Committee of the Board in its discretion, and will be net of any shares deducted for applicable taxes and other withholdings.

F2 · derivative.underlying: On July 3, 2025, INSW granted the Reporting Person pursuant to the International Seaways 2025 Management Incentive Plan (the "2025 Plan") 2,715 restricted stock units which units vest as to one-third of such units on each of the first, second and third anniversaries of the date of the grant. Each unit represents the right to acquire one share of Common Stock. Settlement of vested units which may be in either shares of Common Stock or cash as determined by the Human Resources and Compensation Committee of the Board in its discretion, and will be net of any shares deducted for applicable taxes and other withholdings.

F2 · derivative.underlying_shares: On July 3, 2025, INSW granted the Reporting Person pursuant to the International Seaways 2025 Management Incentive Plan (the "2025 Plan") 2,715 restricted stock units which units vest as to one-third of such units on each of the first, second and third anniversaries of the date of the grant. Each unit represents the right to acquire one share of Common Stock. Settlement of vested units which may be in either shares of Common Stock or cash as determined by the Human Resources and Compensation Committee of the Board in its discretion, and will be net of any shares deducted for applicable taxes and other withholdings.

F2 · balance_after: On July 3, 2025, INSW granted the Reporting Person pursuant to the International Seaways 2025 Management Incentive Plan (the "2025 Plan") 2,715 restricted stock units which units vest as to one-third of such units on each of the first, second and third anniversaries of the date of the grant. Each unit represents the right to acquire one share of Common Stock. Settlement of vested units which may be in either shares of Common Stock or cash as determined by the Human Resources and Compensation Committee of the Board in its discretion, and will be net of any shares deducted for applicable taxes and other withholdings.