SCHEDULE 13G/A

INDIVIOR PLC

Ordinary shares, $0.50 nominal value per share (the "Ordinary Shares") · CUSIP: G4766E116

Event date: 2025-12-31

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• Madison Avenue International LP

  Shares: 6,280,502 · Class: 5.0%

• Madison Avenue Partners, LP

  Shares: 6,280,502 · Class: 5.0%

• EMAI Management, LLC

  Shares: 6,280,502 · Class: 5.0%

• Madison Avenue GP, LLC

  Shares: 6,280,502 · Class: 5.0%

• Caraway Jackson Investments LLC

  Shares: 6,280,502 · Class: 5.0%

• Eli Samaha

  Shares: 6,280,502 · Class: 5.0%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.