INDV · Indivior Pharmaceuticals, Inc.

The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2026.

Each performance stock unit represents a contingent right to receive one share of the Issuer's common stock.

Represents the vesting of performance stock units upon the determination that the performance conditions were met at 100% with respect to the performance stock units granted to the Reporting Person on May 13, 2025. As a result, 1,266,903 shares vested on June 22, 2026.

Shares withheld to satisfy tax withholding obligations associated with the vesting of performance stock units on June 22, 2026.

Represents the vesting of performance stock units upon the determination that the performance conditions were met at 100% with respect to the performance stock units granted to the Reporting Person on May 13, 2025. As a result, 1,266,903 shares vested on June 22, 2026.

Each performance stock unit represents a contingent right to receive one share of the Issuer's common stock.

The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2026.

The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026.

Reflects a grant of Restricted Stock Units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest on the day immediately preceding the date of the annual meeting of the Issuer's stockholders following the date of grant, subject to the Reporting Person's continued service to the Issuer on the vesting date.

Reflects a grant of Restricted Stock Units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest on the day immediately preceding the date of the annual meeting of the Issuer's stockholders following the date of grant, subject to the Reporting Person's continued service to the Issuer on the vesting date.

Reflects a grant of Restricted Stock Units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest on the day immediately preceding the date of the annual meeting of the Issuer's stockholders following the date of grant, subject to the Reporting Person's continued service to the Issuer on the vesting date.

Reflects a grant of Restricted Stock Units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest on the day immediately preceding the date of the annual meeting of the Issuer's stockholders following the date of grant, subject to the Reporting Person's continued service to the Issuer on the vesting date.

Reflects a grant of Restricted Stock Units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest on the day immediately preceding the date of the annual meeting of the Issuer's stockholders following the date of grant, subject to the Reporting Person's continued service to the Issuer on the vesting date.

Reflects a grant of Restricted Stock Units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest on the day immediately preceding the date of the annual meeting of the Issuer's stockholders following the date of grant, subject to the Reporting Person's continued service to the Issuer on the vesting date.

Reflects a grant of Restricted Stock Units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest on the day immediately preceding the date of the annual meeting of the Issuer's stockholders following the date of grant, subject to the Reporting Person's continued service to the Issuer on the vesting date.

Shares used to satisfy tax withholding obligations associated with the vesting of Restricted Stock Units on May 12, 2026.

Restricted stock units (RSUs) convert into shares of the Issuer's common stock on a one-for-one basis.

On March 14, 2024, the reporting person was granted 6,302 RSUs in accordance with the Indivior Group Deferred Bonus Plan 2018. Those RSUs vested in a single installment on March 14, 2026.

Restricted stock units (RSUs) convert into shares of the Issuer's common stock on a one-for-one basis.

Shares used to satisfy tax withholding obligations associated with the vesting of RSUs on March 14, 2026.

Represents the vesting of performance stock units upon the determination that the performance conditions were met at 76.6% with respect to the performance stock units granted to the Reporting Person on March 3, 2023, of which 18,364 shares vested out of the 23,975 target amount.

Each performance stock unit and restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

Each performance stock unit represents a contingent right to receive one share of the Issuer's common stock.

Represents the vesting of performance stock units upon the determination that the performance conditions were met at 76.6% with respect to the performance stock units granted to the Reporting Person on March 3, 2023, of which 101,544 shares vested out of the 132,565 target amount.

Represents the vesting of performance stock units upon the determination that the performance conditions were met at 76.6% with respect to the performance stock units granted to the Reporting Person on March 3, 2023, of which 86,949 shares vested out of the 113,510 target amount. These shares will be released following a two-year holding period.

Each performance stock unit represents a contingent right to receive one share of the Issuer's common stock.

Represents the vesting of performance stock units upon the determination that the performance conditions were met at 76.6% with respect to the performance stock units granted to the Reporting Person on March 3, 2023, of which 79,893 shares vested out of the 104.300 target amount.

Each performance stock unit represents a contingent right to receive one share of the Issuer's common stock.

Each performance stock unit and restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

Represents the vesting of performance stock units upon the determination that the performance conditions were met at 76.6% with respect to the performance stock units granted to the Reporting Person on March 3, 2023, of which 18,364 shares vested out of the 23,975 target amount.

Shares used to satisfy tax withholding obligations associated with the vesting of performance stock units on March 3, 2026.

In 2024, 204,904 shares vested in respect of performance stock units granted to the Reporting Person on March 3, 2021. These shares were subject to a further two-year holding period. On March 3, 2026, the holding period ended and 87,597 shares were withheld to satisfy tax withholding obligations.

Represents the vesting of performance stock units upon the determination that the performance conditions were met at 76.6% with respect to the performance stock units granted to the Reporting Person on March 3, 2023, of which 101,544 shares vested out of the 132,565 target amount.

Each performance stock unit represents a contingent right to receive one share of the Issuer's common stock.

Each performance stock unit and restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

Each performance stock unit and restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

This award is fully vested in accordance with its terms, effective March 3, 2026.

Shares used to satisfy tax withholding obligations associated with the vesting of restricted stock units on March 3, 2026.

Each performance stock unit represents a contingent right to receive one share of the Issuer's common stock.

Represents the vesting of performance stock units upon the determination that the performance conditions were met at 76.6% with respect to the performance stock units granted to the Reporting Person on March 3, 2023, of which 79,893 shares vested out of the 104.300 target amount.

Each performance stock unit represents a contingent right to receive one share of the Issuer's common stock.

Represents the vesting of performance stock units upon the determination that the performance conditions were met at 76.6% with respect to the performance stock units granted to the Reporting Person on March 3, 2023, of which 86,949 shares vested out of the 113,510 target amount. These shares will be released following a two-year holding period.

Shares used to satisfy tax withholding obligations associated with the vesting of performance stock units on March 3, 2026.

Shares used to satisfy tax withholding obligations associated with the vesting of performance stock units on March 3, 2026.

Reflects the grant of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's common stock, vesting in three equal annual installments beginning on February 10, 2027, the first anniversary of the grant, subject to the Reporting Person's continued service with the Issuer.

Reflects the grant of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's common stock, vesting in three equal annual installments beginning on February 10, 2027, the first anniversary of the grant, subject to the Reporting Person's continued service with the Issuer.

Reflects the grant of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's common stock, vesting in three equal annual installments beginning on February 10, 2027, the first anniversary of the grant, subject to the Reporting Person's continued service with the Issuer.

Reflects the grant of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's common stock, vesting in three equal annual installments beginning on February 10, 2027, the first anniversary of the grant, subject to the Reporting Person's continued service with the Issuer.

Reflects the grant of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's common stock, vesting in three equal annual installments beginning on February 10, 2027, the first anniversary of the grant, subject to the Reporting Person's continued service with the Issuer.

Reflects the grant of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's common stock, vesting in three equal annual installments beginning on February 10, 2027, the first anniversary of the grant, subject to the Reporting Person's continued service with the Issuer.

On March 3, 2023, the Reporting Person was granted a conditional award for 132,565 shares, subject to satisfaction of performance conditions, which were certified on February 9, 2026. The award vests, subject to continued employment conditions, on March 3, 2026.

On March 3, 2023, the Reporting Person was granted a conditional award for 104,300 shares, subject to satisfaction of performance conditions, which were certified on February 9, 2026. The award vests, subject to continued employment conditions, on March 3, 2026.

On March 3, 2023, the Reporting Person was granted a conditional award for 23,975 shares, subject to satisfaction of performance conditions, which were certified on February 9, 2026. The award vests, subject to continued employment conditions, on March 3, 2026.

On March 3, 2023, the Reporting Person was granted a conditional award for 113,510 shares, subject to satisfaction of performance conditions, which were certified on February 9, 2026. The award vests, subject to continued employment conditions, on March 3, 2026. The shares will then be subject to an additional two-year Holding Period before the vested Shares are released to the Reporting Person.

Reflects a grant of Restricted Stock Units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest on the day immediately preceding the date of the first annual meeting of the Issuer's stockholders following the date of grant, subject to the Reporting Person's continued service to the Issuer on the vesting date.

Reflects a grant of Restricted Stock Units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest on the day immediately preceding the date of the first annual meeting of the Issuer's stockholders following the date of grant, subject to the Reporting Person's continued service to the Issuer on the vesting date.

Reflects a grant of Restricted Stock Units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest on the day immediately preceding the date of the first annual meeting of the Issuer's stockholders following the date of grant, subject to the Reporting Person's continued service to the Issuer on the vesting date.

Reflects a grant of Restricted Stock Units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest on the day immediately preceding the date of the first annual meeting of the Issuer's stockholders following the date of grant, subject to the Reporting Person's continued service to the Issuer on the vesting date.

Reflects a grant of Restricted Stock Units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest on the day immediately preceding the date of the first annual meeting of the Issuer's stockholders following the date of grant, subject to the Reporting Person's continued service to the Issuer on the vesting date.