Thank you, Jason and good morning, and good afternoon everyone. Thanks for joining us. Joining me today are Ryan Preblick, our Chief Financial Officer; Richard Simkin, Chief Commercial Officer and Dr. Christian Heidbreder, our Chief Scientific Officer. I'll quickly highlight our results, touch on guidance, and review our progress against strategic priorities. Then Richard will provide updates on the commercial strategies for our major products, focusing on our efforts behind SUBLOCADE. After that, Ryan will detail the financials and our full year 2025 outlook, and Christian is available if we have any pipeline-related questions. Looking at our results, I'm pleased we finished 2024 with positive momentum. We delivered a fourth quarter performance that put our full year results above our latest guidance and our primary growth engine, SUBLOCADE ended the year with 20% net revenue growth overall. We recognize that 2024 was a difficult period for the company and our investors. As we previously highlighted, the performance of SUBLOCADE in 2024 was impacted by transitory items, together with competition in the U.S. long-acting injectable category. Furthermore, we took the decision midyear to discontinue our schizophrenia treatment, PERSERIS on profitability grounds. The result was that we were unable to deliver against our original expectations for 2024. Faced with this challenging backdrop, we took decisive actions in the back half of the year to fortify our position and support our long-term profitable growth ambitions. We narrowed our commercial and R&D pipeline focus to growing our long-standing leadership role in opioid use disorder. In addition, we implemented cost reductions of over $100 million on an annual basis. Together, these actions will provide us with the fuel to both reinvest behind SUBLOCADE and our two opioid use disorder Phase 2 pipeline assets, while also delivering more than $50 million of savings to the bottom-line. Regarding the commercial investments we're making behind SUBLOCADE, we believe this is the right time to accelerate awareness of this important treatment among patients and HCPs, especially given the pending label updates that we expect will improve SUBLOCADE's competitive positioning through enhanced HCP and patient experience. Let me touch briefly on these proposed label changes, which, as a reminder, covered rapid induction and alternate sites of injection on the body. We are confident in the strength of the data we provided and the FDA informed us that there were no outstanding items for us to address. Consequently, we're optimistic the FDA will approve the label changes for SUBLOCADE in the coming weeks. In a moment, Richard, will share some details on our commercial strategy to increase awareness of SUBLOCADE and medically assisted treatment more broadly. On top of our initiatives to streamline and refocus our business another important development was the series of steps we took to further derisk Indivior through ongoing resolution of certain legacy litigation. We understand that these matters have created volatility in the past but through our legal strategy I believe we have put Indivior on much sounder footing. Overall, I'm confident the actions that I've highlighted have placed Indivior in a stronger position to drive long-term profitable growth and shareholder value. In the near term however we expect a transition year for SUBOXONE Film and SUBLOCADE in 2025. Notably after five years of exceeding generic erosion analogs net revenue from SUBOXONE Film is expected to decline sharply in 2025 due to intensified competitive generic pricing activity in the U.S. along with the potential for a 5th generic entrant. As a reminder we do not promote SUBOXONE Film in the U.S. For SUBLOCADE, we anticipate relatively unchanged net revenue at the midpoint of our guidance, as competitive dynamics and near-term Justice System funding challenges are expected to largely offset strong underlying Long-Acting Injectable category growth and good growth in our organized health systems accounts. In view of the expected reduction in Film, net revenue and profit, our 2025 guidance assumes a decline in total net revenue and adjusted operating profit versus 2024. Drilling down a little deeper into our outlook for SUBLOCADE, we see two counteracting vectors in 2025. Our traditional base OHS business is expected to grow in the high-single to low-double-digit range. This reflects a few factors, including overall LAI category growth, benefits from our past and current commercial investments to drive increased awareness, and improvement in our competitive position, assuming the pending label updates. It also assumes that, the market adjust to two LAI competitors towards a steady-state share split that is continuing to track with our cohort intelligence indicating an approximately 65-35 share split favoring SUBLOCADE amongst experienced dual LAI prescribers. We expect that this outlook in the base business to be largely offset by challenges in the Justice channel due to funding gaps that are persisting into 2025, as well as difficult choices a few larger Justice System accounts are having to make to treat more patients with constrained funding in the near-term, resulting in long-acting injectables losing position. Richard, will have more detail on our Justice strategy, but I would simply emphasize that this near-term Justice System dynamic in no way diminishes the long-term upside we see. And we expect growth again in 2026. We will not, however, allow this near-term imperative transition, to take our attention away from the main driver of our business and shareholder value. By focusing our efforts on opioid use disorder and growing the LAI category and emphasizing SUBLOCADE's differentiated profile, we continue to expect to achieve SUBLOCADE's peak net revenue goal of greater than $1.5 billion. Turning quickly to our report card, on strategic priorities which are now set against our narrowed focus particularly as regards to R&D. Beginning with SUBLOCADE we continue to see solid growth in the number of patients we're able to help in the past year. At the end of 2024, we had approximately 171,000 patients a 25% increase compared to the end of 2023. Recall, reaching our peak net revenue goal contemplates treating approximately 270,000 patients, so continued good growth in 2024. And as I previously mentioned, our progress in helping patients delivered another overall solid net revenue performance for SUBLOCADE in 2024, growing 20% year-over-year, despite the recent challenges. In terms of diversification, our efforts are focused on OPVEE in the US and on driving net revenue of our new products, SUBLOCADE and SUBOXONE film in the rest of world. We made good progress in both areas. Richard will provide more detail on OPVEE in a moment, but we exited 2024 with 170 experience programs up and running with continued positive anecdotal feedback and growing potential for adoption. Meanwhile, new products increased to more than 50% of the rest of world net revenue, mainly driven by SUBLOCADE. In terms of pipeline and R&D, our focus has narrowed to our two assets for the treatment of opioid use disorder. The Phase 2 studies for both have been committed to and funded and development activities are on track with last patient, last visits for both studies expected in the fourth quarter this year. On our last strategic priority, I'm pleased that we again made great strides in creating greater certainty for all our stakeholders. The two major items in 2024 were continuing to reduce enterprise risk with the settlements of certain legacy litigation and increased financial flexibility with a new debt facility totaling $400 million. More specifically on the completed legal settlements, we have now fully resolved the antitrust matters with the agreement we reached with the remaining parties in this legacy matter. I'm also pleased to confirm that in 2024, we continued our unwavering commitment and strong record of meeting our mandated integrity and compliance commitments. We're well on track to complete our obligations under the CIA this year. Finally, I want to highlight our capital allocation priorities during this transition period. In 2025, we expect to generate positive underlying cash flows from operations and to maintain a strong cash position. We do, however, need to be mindful of potential significant unwind of payables related to SUBOXONE film, if share erodes at a rapid pace. As such, our near-term capital allocation focus is on reinvesting in SUBLOCADE, completing the two clinical Phase 2 studies and maintaining our overall financial flexibility. As we move through this in the near-term period, the Board, in partnership with management, will continue to actively review capital allocation. But at this time, we are neither considering business development nor a return of capital to shareholders. With that, I'll now hand it over to Richard to provide a commercial overview.