Jazz Pharmaceuticals plc

Previous wording

The purpose of the Management Discussion and Analysis is to present information that management believes is relevant to promote an understanding of our results of operations and cash flows for the fiscal year ended December 31, 2024 and our financial condition as of December 31, 2024 and should be read in conjunction with the consolidated financial statements and notes to consolidated financial statements included elsewhere in this Annual Report on Form 10‑K. This discussion contains forward-looking statements that involve risks and uncertainties. When reviewing the discussion below, you should keep in mind the substantial risks and uncertainties that impact or could impact our business. In particular, we encourage you to review the risks and uncertainties described in “Risk Factors” in Part I, Item 1A in this Annual Report on Form 10‑K. These risks and uncertainties could cause actual results to differ materially from those projected in forward-looking statements contained in this report or implied by past results and trends. Forward-looking statements are statements that attempt to forecast or anticipate future developments in our business, financial condition or results of operations. See the “Cautionary Note Regarding Forward-Looking Statements” that appears at the beginning of this Annual Report. These statements, like all statements in this report, speak only as of the date of this Annual Report on Form 10-K (unless another date is indicated), and we undertake no obligation to update or revise these statements in light of future developments. Forward-looking statements are statements that attempt to forecast or anticipate future developments in our business, financial condition or results of operations. See the “Cautionary Note Regarding Forward-Looking Statements” that appears at the beginning of this Annual Report. These statements, like all statements in this report, speak only as of the date of this Annual Report on Form 10-K (unless another date is indicated), and we undertake no obligation to update or revise these statements in light of future developments.

Current wording

The purpose of the Management Discussion and Analysis is to present information that management believes is relevant to promote an understanding of our results of operations and cash flows for the fiscal year ended December 31, 2025 and our financial condition as of December 31, 2025 and should be read in conjunction with the consolidated financial statements and notes to consolidated financial statements included elsewhere in this Annual Report on Form 10‑K. This discussion contains forward-looking statements that involve risks and uncertainties. You should review the risks and uncertainties described in “Risk Factors” in Part I, Item 1A in this Annual Report on Form 10‑K for a discussion of important factors that could cause actual results to differ materially from those projected in forward-looking statements contained in this report or implied by past results and trends. Forward-looking statements are statements that attempt to forecast or anticipate future developments in our business, financial condition or results of operations. See the “Cautionary Note Regarding Forward-Looking Statements” that appears at the beginning of this Annual Report on Form 10-K. These statements, like all statements in this report, speak only as of the date of this Annual Report on Form 10-K (unless another date is indicated), and we undertake no obligation to update or revise these statements in light of future developments.

Previous wording

Jazz Pharmaceuticals plc is a global biopharmaceutical company whose purpose is to innovate to transform the lives of patients and their families. We are dedicated to developing life-changing medicines for people with serious diseases - often with limited or no therapeutic options. We have a diverse portfolio of marketed medicines, including leading therapies for sleep disorders and epilepsy, and a growing portfolio of cancer treatments. Our patient-focused and science-driven approach powers pioneering research and development advancements across our robust pipeline of innovative therapeutics in oncology and neuroscience.

Current wording

Jazz Pharmaceuticals plc is a global biopharmaceutical company whose purpose is to innovate to transform the lives of patients and their families. We are dedicated to developing life-changing medicines for people with rare disease – often with limited or no therapeutic options. We have a diverse portfolio of medicines, including leading therapies addressing epilepsies, cancers and sleep disorders. Our patient-focused and science-driven approach powers pioneering R&D advancements across our robust pipeline of innovative therapeutics.

Previous wording

Our strategy for growth is rooted in executing commercial launches and ongoing commercialization initiatives, advancing robust R&D programs and delivering impactful clinical results, effectively deploying capital to strengthen the prospects of achieving our short- and long-term goals through strategic corporate development, and delivering strong financial performance. We focus on patient populations with high unmet needs. We seek to identify and develop differentiated therapies for these patients that we expect will be long-lived assets and that we can support with an efficient commercialization model. In addition, we leverage our efficient, scalable operating model and integrated capabilities across our global infrastructure to effectively reach patients around the world.

Current wording

Our strategy for growth is rooted in executing commercial launches and ongoing commercialization initiatives, advancing robust R&D programs and delivering impactful clinical results, effectively deploying capital to strengthen the prospects of achieving our short- and long-term goals through strategic corporate development, and delivering strong financial performance. We focus on rare disease, which often have high unmet needs and small patient populations, resulting in efficient, concentrated call points. We seek to identify and develop highly differentiated therapies for these patients that we expect will be long-lived assets and that we can support with an efficient commercialization model. In addition, we leverage our efficient, scalable operating model and integrated capabilities across our global infrastructure to effectively reach patients around the world.

Previous wording

In 2024, consistent with our strategy, we continued to focus on research and development activities within our neuroscience and oncology therapeutic areas. For a summary of our ongoing research and development activities, see “Business—Research and Development” in Part I, Item 1 of this Annual Report on Form 10-K.

Current wording

We continue to invest in pipeline programs that further our rare disease strategy. For a summary of our ongoing R&D activities, see “Business—Research and Development Progress” in Part I, Item 1 of this Annual Report on Form 10-K.

Previous wording

3 Conditional approval received from Health Canada

Current wording

4 Conditional approval received from Health Canada

Previous wording

We are the global leader in the development and commercialization of oxybate therapy for patients with sleep disorders. Xyrem was approved by FDA in 2002, and is indicated for treating cataplexy and EDS in patients seven years of age or older with narcolepsy. In 2020, we received FDA approval for Xywav for the treatment of cataplexy or EDS in patients seven years of age and older with narcolepsy. In August 2021, Xywav became the first and only therapy approved by FDA for the treatment of IH in adults. Xywav is an oxybate therapy that contains 92% less sodium than Xyrem. Xywav has become a standard of care for patients with narcolepsy and IH.

Current wording

We are the leader in the development and commercialization of oxybate therapy for patients with rare sleep disorders. In 2020, we received FDA approval for Xywav for the treatment of cataplexy or EDS in patients seven years of age and older with narcolepsy. In August 2021, Xywav became the first and only therapy approved by FDA for the treatment of IH in adults. Xywav has become a standard of care for patients with narcolepsy and IH.

Previous wording

Since there is no cure for narcolepsy and long-term disease management is needed, we believe that Xywav represents an important therapeutic option for patients with this sleep disorder. Our commercial efforts are focused on educating patients and physicians about the lifelong impact of high sodium intake, and how the use of Xywav enables them to address what is a modifiable risk factor for cardiovascular morbidity. We view the adoption of Xywav in narcolepsy as a positive indication that physicians and patients appreciate the benefits of a low-sodium oxybate option.

Current wording

Since there is no cure for narcolepsy and long-term disease management is needed, we believe that Xywav represents an important therapeutic option for patients with this sleep disorder. Our commercial efforts are focused on educating patients and physicians on the strength of clinical evidence that supports the use of Xywav for treating narcolepsy and IH. Xywav has demonstrated efficacy for the treatment of cataplexy and EDS in narcolepsy and multiple daytime symptoms such as sleep inertia in IH. Analysis from the Phase 4 DUET trial showed improvements across multiple polysomnography measures in both narcolepsy and IH, suggesting Xywav improves measures of sleep fragmentation in these conditions. In addition, we are also focused on educating patients and physicians on the long-term health impacts of high sodium intake, and how the use of Xywav helps address a modifiable risk factor for cardiovascular morbidity. We view the continued adoption of Xywav in narcolepsy as a positive indication that physicians and patients appreciate the benefits of a low-sodium oxybate option.

Previous wording

In June 2021, FDA recognized seven years of ODE for Xywav in narcolepsy. ODE extends through January 2028. Nevertheless, Lumryz, a fixed-dose, high-sodium oxybate, was approved by FDA on May 1, 2023, for the treatment of cataplexy or EDS in adults with narcolepsy and was launched in the U.S. market by Avadel. FDA continues to recognize seven years of ODE for Xywav in narcolepsy. In connection with granting ODE, FDA stated that "Xywav is clinically superior to Xyrem by means of greater safety because Xywav provides a greatly reduced chronic sodium burden compared to Xyrem.” FDA's summary also stated that "the differences in the sodium content of the two products at the recommended doses will be clinically meaningful in reducing cardiovascular morbidity in a substantial proportion of patients for whom the drug is indicated." FDA has also recognized that the difference in sodium content between Xywav and Lumryz is likely to be clinically meaningful in all patients with narcolepsy and that Xywav is safer than Lumryz in all such patients. Lumryz has the same sodium content as Xyrem. Xywav is the only approved oxybate therapy that does not carry a warning and precaution related to high sodium intake.

Current wording

In June 2021, FDA recognized seven years of ODE for Xywav in EDS and cataplexy in narcolepsy through July 2027 (which was subsequently extended to January 2028). Nevertheless, Lumryz, a fixed-dose, high-sodium oxybate, was approved by FDA on May 1, 2023, for the treatment of cataplexy or EDS in adults with narcolepsy and was launched in the U.S. market by Avadel in June 2023. FDA continues to recognize seven years of ODE for Xywav in narcolepsy. In connection with granting ODE, FDA stated that "Xywav is clinically superior to Xyrem by means of greater safety because Xywav provides a greatly reduced chronic sodium burden compared to Xyrem.” FDA's summary also stated that "the differences in the sodium content of the two products at the recommended doses will be clinically meaningful in reducing cardiovascular morbidity in a substantial proportion of patients for whom the drug is indicated." FDA has also recognized that the difference in sodium content between Xywav and Lumryz is likely to be clinically meaningful in all patients with narcolepsy and that Xywav is safer than Lumryz in all such patients. Lumryz has the same sodium content as Xyrem. Our first medicine in rare sleep disorders was Xyrem, which was approved by FDA in 2002, and contains 1640mg of sodium per 9gram dose per night. Xyrem is indicated for the treatment of cataplexy or EDS in patients seven years of age and older with narcolepsy. Xywav contains 92% less sodium than Xyrem and is the only approved oxybate therapy that does not carry a warning and precaution related to high sodium intake.

Previous wording

On August 12, 2021, FDA approved Xywav for the treatment of IH in adults. Xywav remains the first and only FDA-approved therapy to treat IH. We initiated the U.S. commercial launch of Xywav for the treatment of IH in adults in November 2021. In January 2022, FDA recognized seven years of ODE for Xywav in IH that extends through August 2028. IH is a debilitating neurologic sleep disorder characterized by chronic EDS (the inability to stay awake and alert during the day resulting in the irrepressible need to sleep or unplanned lapses into sleep or drowsiness), severe sleep inertia, and prolonged and non-restorative nighttime sleep. An estimated 37,000 people in the U.S. have been diagnosed with IH and are actively seeking healthcare.

Current wording

On August 12, 2021, FDA approved Xywav for the treatment of IH in adults. Xywav remains the first and only FDA-approved therapy to treat IH. We initiated the U.S. commercial launch of Xywav for the treatment of IH in adults in November 2021. In January 2022, we announced that FDA recognized seven years of ODE for Xywav in IH through August 2028. IH is a debilitating neurologic sleep disorder characterized by chronic EDS (the inability to stay awake and alert during the day resulting in the irrepressible need to sleep or unplanned lapses into sleep or drowsiness), severe sleep inertia, and prolonged and non-restorative nighttime sleep. An estimated 37,000 people in the U.S. have been diagnosed with IH and are actively seeking healthcare.

Previous wording

We have seen strong adoption of Xywav in narcolepsy since its launch in November 2020, and increasing adoption in IH since its launch in November 2021. Exiting 2024, there were approximately 14,150 patients taking Xywav, including approximately 10,250 patients with narcolepsy and approximately 3,900 patients with IH.

Current wording

We have seen strong adoption of Xywav in narcolepsy since its launch in November 2020, and increasing adoption in IH since its launch in November 2021. At the end of 2025, there were approximately 16,175 patients taking Xywav, including approximately 10,950 patients with narcolepsy and approximately 5,225 patients with IH.

Previous wording

We acquired Epidiolex (Epidyolex outside the U.S.) in May 2021 as part of the GW Acquisition, which expanded our growing neuroscience business with a global, high-growth childhood-onset epilepsy franchise. Epidiolex was approved in the U.S. in June 2018 for the treatment of seizures associated with two rare and severe forms of epilepsy, LGS and DS, in patients two years of age and older, and subsequently approved in July 2020 for the treatment of seizures associated with TSC in patients one year of age and older. FDA also approved the expansion of all existing indications, LGS and DS, to patients one year of age and older. The rolling European launch of Epidyolex is also underway following EC approval in September 2019 for use as adjunctive therapy of seizures associated with LGS or DS, in conjunction with clobazam, for patients two years of age and older. The clobazam restriction is limited to the EU and Great Britain. Epidyolex is now launched in all five key European markets: United Kingdom, Germany, Italy, Spain and France. Epidyolex was also approved for adjunctive therapy of seizures associated with TSC for patients 2 years of age and older in the EU in April 2021 and Great Britain in August 2021, and is approved or under review for this indication in other markets. Outside the U.S. and Europe, Epidiolex/Epidyolex is approved in Israel, Canada, Australia, New Zealand and Taiwan.

Current wording

We acquired Epidiolex (Epidyolex in certain markets outside the U.S.) in May 2021 as part of the GW Acquisition, which added a durable and long-lived asset in rare epilepsies to our portfolio. Epidiolex was approved in the U.S. in June 2018 for the treatment of seizures associated with two rare and severe forms of epilepsy, LGS and DS, in patients two years of age and older, and subsequently approved in July 2020 for the treatment of seizures associated with TSC in patients one year of age and older. FDA also approved the expansion of the other indications, LGS and DS, to patients one year of age and older. In September 2019, the EC granted marketing authorization under the trade name Epidyolex for use as adjunctive therapy of seizures associated with LGS or DS, in conjunction with clobazam, for patients two years of age and older. The clobazam restriction is limited to the EU and Great Britain. Epidyolex was also approved for adjunctive therapy of seizures associated with TSC for patients 2 years of age and older in the EU in April 2021 and Great Britain in August 2021. Epidyolex is now launched and reimbursed in more than 40 countries.

Previous wording

We acquired exclusive development and commercialization rights to Ziihera in 2022 through an exclusive licensing agreement with a subsidiary of Zymeworks providing development and commercialization rights to zanidatamab across all indications in the U.S., Europe, Japan and all other territories except for those Asia/Pacific territories previously licensed by Zymeworks. The term of the license agreement extends on a licensed product-by-licensed product and country-by-country basis until the expiration of the royalty term for such licensed product in such country. We have the right to terminate the amended license agreement at will upon a specified notice period, and either party can terminate the amended license agreement for the other party’s uncured material breach or bankruptcy.

Current wording

We acquired exclusive development and commercialization rights to Ziihera in 2022 through an exclusive licensing and collaboration agreement with a subsidiary of Zymeworks providing development and commercialization rights to zanidatamab across all indications in the U.S., Europe, Japan and all other territories except for those Asia/Pacific territories previously licensed by Zymeworks. The term of the license agreement extends on a licensed product-by-licensed product and country-by-country basis until the expiration of the royalty term for such licensed product in such country. We have the right to terminate the amended license agreement at will upon a specified notice period, and either party can terminate the amended license agreement for the other party’s uncured material breach or bankruptcy.

Previous wording

Ziihera is a bispecific HER2-directed antibody that binds to two extracellular sites on HER2. Binding of zanidatamab-hrii with HER2 results in internalization leading to a reduction of the receptor on the tumor cell surface. In the U.S., Ziihera was approved by FDA in November 2024 and is indicated for the treatment of adults with previously treated, unresectable or metastatic HER2-positive (IHC 3+) BTC, as detected by an FDA-approved test.

Current wording

Ziihera is a bispecific HER2-directed antibody that binds to two extracellular sites on HER2. Binding of zanidatamab-hrii with HER2 results in internalization leading to a reduction of the receptor on the tumor cell surface. In the U.S., Ziihera was granted accelerated approval by FDA in November 2024 and is indicated for the treatment of adults with previously treated, unresectable or metastatic HER2-positive (IHC3+) BTC, as detected by an FDA-approved test. Ziihera was launched in December 2024. Continued approval for this indication may be contingent upon verification and description of clinical benefit in the Phase 3 HERIZON-BTC-302 confirmatory trial. In June 2025, the EC granted conditional marketing authorization for Ziihera for the treatment of adults with unresectable locally advanced or metastatic HER2-positive (IHC3+) BTC previously treated with at least one prior line of systemic therapy. In January 2026, Ziihera obtained conditional approval in Canada for the treatment of adults with previously treated, unresectable locally advanced or metastatic HER2-positive (IHC3+) BTC, as monotherapy.

Previous wording

We acquired U.S. development and commercialization rights to Zepzelca in early 2020, and launched six months thereafter, with an indication for treatment of patients with SCLC with disease progression on or after platinum-based chemotherapy. Our education and promotional efforts are focused on SCLC-treating physicians. We are continuing to raise awareness of Zepzelca across academic and community cancer centers. In collaboration with Roche, we have an ongoing Phase 3 pivotal clinical trial of Zepzelca for use as maintenance therapy in first-line extensive-stage SCLC in combination with Tecentriq® (atezolizumab) following induction therapy with carboplatin, etoposide and Tecentriq. In October 2024, we announced positive top-line results from the trial showing a statistically significant and clinically meaningful benefit for Zepzelca and atezolizumab in combination in the first-line maintenance setting. We plan to submit an sNDA in the first half of 2025 to support this combination in the first-line maintenance setting.

Current wording

We acquired U.S. development and commercialization rights to Zepzelca in early 2020, and launched six months thereafter, with an indication for treatment of patients with metastatic SCLC with disease progression on or after platinum-based chemotherapy. Our education and promotional efforts are focused on SCLC-treating physicians. We are continuing to market Zepzelca across academic and community cancer centers. In October 2024, we announced positive top-line results from the Phase 3 IMforte trial showing a statistically significant and clinically meaningful progression-free survival and overall survival benefit for Zepzelca and atezolizumab in combination in the first-line maintenance setting. In June 2025, the sNDA submission for the combination of Zepzelca with atezolizumab or atezolizumab and hyaluronidase-tqjs was granted Priority Review by FDA and subsequently approved in October 2025 as a first-line maintenance treatment for adults with extensive- stage SCLC whose disease has not progressed after first-line induction therapy with atezolizumab, or atezolizumab and hyaluronidase-tqjs carboplatin and etoposide.

Previous wording

Rylaze was approved by FDA in June 2021 under the Real-Time Oncology Review program, and was launched in the U.S. in July 2021 for use as a component of a multi-agent chemotherapeutic regimen for the treatment of patients with ALL or LBL in pediatric and adult patients one month and older who have developed hypersensitivity to E. coli-derived asparaginase. Rylaze is the only recombinant erwinia asparaginase manufactured product approved in the U.S. that maintains a clinically meaningful level of asparaginase activity throughout the entire course of treatment. We developed Rylaze to address the needs of patients and health care providers for an innovative, high-quality erwinia asparaginase with reliable supply. The initial approved recommended dosage of Rylaze was for an IM administration of 25 mg/m2 every 48 hours. In November 2022, FDA approved an sBLA for a Monday/Wednesday/Friday 25/25/50 mg/m2 IM dosing schedule. In September 2023, the EC granted marketing authorization for JZP458 under the trade name Enrylaze. This product has also been approved in Great Britain, Canada and Switzerland.

Current wording

Rylaze was approved by FDA in June 2021 under the RTOR program, and was launched in the U.S. in July 2021, for use as a component of a multi-agent chemotherapeutic regimen for the treatment of patients with ALL, and LBL, in pediatric and adult patients one month and older who have developed hypersensitivity to E. coli-derived asparaginase. Rylaze is the only recombinant erwinia asparaginase manufactured product approved in the U.S. that maintains a clinically meaningful level of asparaginase activity throughout the entire course of treatment. We developed Rylaze to address the needs of patients and health care providers for an innovative, high-quality erwinia asparaginase with reliable supply. The initial approved recommended dosage of Rylaze was for an IM administration of 25 mg/m 2 every 48 hours. In November 2022, FDA approved an sBLA, for a Monday/Wednesday/Friday 25/25/50 mg/m 2 IM dosing schedule. In September 2023, the EC granted marketing authorization for JZP458 (Rylaze) under the trade name Enrylaze®. Enrylaze was approved in Great Britain in January 2024, and is also approved in Canada, Switzerland and Australia.

Previous wording

Our research and development activities encompass all stages of development and currently include clinical testing of new product candidates and activities related to clinical improvements of, or additional indications or new clinical data for, our existing marketed products. We also have active preclinical programs for novel therapies, including neuroscience and precision medicines in oncology. We are increasingly leveraging our growing internal research and development function, and we have also entered into collaborations with third parties for the research and development of innovative early-stage product candidates and have supported additional investigator-sponsored trials that are anticipated to generate additional data related to our products. We also seek out investment opportunities in support of the development of early- and mid-stage technologies in our therapeutic areas and adjacencies. We have a number of licensing and collaboration agreements with third parties, including biotechnology companies, academic institutions and research-based companies and institutions, related to preclinical and clinical research and development activities in hematology and in precision oncology, as well as in neuroscience.

Current wording

Our R&D activities encompass all stages of development and currently include clinical testing of new product candidates and activities related to clinical improvements of, or additional indications or new clinical data for, our existing marketed products. We also have active preclinical and early-stage programs for novel therapies that further our rare disease strategy and leverage the strong R&D capabilities we have built. We are increasingly leveraging our internal R&D function, and we have entered into collaborations with third parties for the R&D of innovative early-stage product candidates and have supported additional investigator-sponsored trials that are anticipated to generate additional data related to our products. We also seek out investment opportunities in support of the development of early- and mid-stage technologies in areas where we have deep expertise with a focus on validated targets and mechanisms. We have a number of licensing and collaboration agreements with third parties, including biotechnology companies, academic institutions and research-based companies and institutions, related to preclinical and clinical R&D activities.

Previous wording

Within our oncology R&D program, in October 2022, we announced an exclusive licensing and collaboration agreement with Zymeworks providing us the right to acquire development and commercialization rights to Zymeworks' zanidatamab across all indications in the U.S., Europe, Japan and all other territories except for those Asia/Pacific territories previously licensed by Zymeworks. In December 2022, we exercised the option to continue with the exclusive development and commercialization rights to zanidatamab. Under the terms of the agreement, Zymeworks received an upfront payment of $50.0 million, and following the exercise of our option to continue the collaboration, a second, one-time payment of $325.0 million. Zymeworks is also eligible to receive regulatory and commercial milestone payments of up to $1.4 billion, for total potential payments of $1.76 billion. Zymeworks is eligible to receive tiered royalties between 10% and 20% on our net sales. Zanidatamab is a bispecific HER2-directed antibody that binds to two extracellular sites on HER2. Zanidatamab is currently being evaluated in multiple clinical trials as a treatment for patients with HER2-expressing cancers. Following positive data from a pivotal Phase 2 clinical trial evaluating zanidatamab monotherapy in patients with previously treated advanced or metastatic HER2-amplified BTC, we completed a BLA submission in second-line BTC in March 2024. In May 2024, FDA granted Priority Review of the BLA; we received FDA approval for this BLA in November 2024. EMA has validated our MAA for zanidatamab in second-line BTC; we anticipate a response to our MAA in 2025. In addition, we have an ongoing Phase 3 randomized clinical trial evaluating zanidatamab in combination with chemotherapy plus or minus tislelizumab as a first-line treatment for HER2-expressing GEA, an ongoing Phase 2 trial examining zanidatamab in combination with chemotherapy in first-line patients with HER2-expressing metastatic GEA and an ongoing Phase 3 trial examining zanidatamab in first-line patients with HER2-positive BTC. In July 2024, we announced the initiation of the Phase 3 EmpowHER-BC-303 to evaluate zanidatamab plus chemotherapy or trastuzumab plus chemotherapy in patients with HER2-positive breast cancer whose disease has progressed on previous T-DXd treatment. There are also multiple ongoing clinical trials exploring zanidatamab in breast cancer and other HER2-expressing tumor types.

Current wording

Within our oncology R&D program, in October 2022, we announced an exclusive licensing and collaboration agreement with Zymeworks providing us development and commercialization rights to Zymeworks' zanidatamab across all indications in the U.S., Europe, Japan and all other territories except for those Asia/Pacific territories previously licensed by Zymeworks. In December 2022, we exercised the option to continue with the exclusive development and commercialization rights to zanidatamab. Under the terms of the agreement, Zymeworks received an upfront payment of $50.0 million, and following the exercise of our option to continue the collaboration, a second, one-time payment of $325.0 million. Zymeworks is also eligible to receive regulatory and commercial milestone payments of up to $1.4 billion, for total potential payments of $1.76 billion. Zymeworks is eligible to receive tiered royalties between 10% and 20% on our net sales. Zanidatamab is a bispecific HER2-directed antibody that binds to two extracellular sites on HER2.

Previous wording

Our development plan for Zepzelca continues to progress. We are collaborating with Roche on a pivotal Phase 3 clinical trial evaluating Zepzelca in combination with Tecentriq for use as maintenance therapy in first-line extensive-stage SCLC. In October 2024, we announced positive top-line results from the trial showing a statistically significant and clinically meaningful benefit for Zepzelca and atezolizumab in combination in the first-line maintenance setting. We plan to submit an sNDA in the first half of 2025 to support this combination in the first-line maintenance setting. In December 2021, our licensor PharmaMar initiated a confirmatory trial in second-line SCLC. This ongoing three-arm trial is comparing Zepzelca as either monotherapy or in combination with irinotecan to investigator's choice of irinotecan or topotecan. Data from either the first-line trial of Zepzelca in combination with Tecentriq or the PharmaMar trial could serve to confirm clinical benefit of Zepzelca and secure full approval in the U.S.

Current wording

Our development plan for Zepzelca continues to progress. In October 2024, we announced positive top-line results from the Phase 3 IMforte trial showing a statistically significant and clinically meaningful progression-free survival and overall survival benefit for Zepzelca and atezolizumab in combination in the first-line maintenance setting. In April 2025, we announced the submission of an sNDA to support this combination in the first-line maintenance setting. In June 2025, FDA granted priority review of the sNDA and we subsequently received FDA approval in October 2025 for the combination as a first-line maintenance treatment of adult patients with extensive-stage SCLC whose disease has not progressed after first-line induction therapy with atezolizumab or atezolizumab and hyaluronidase-tqjs, carboplatin and etoposide. In addition, our licensor PharmaMar is conducting a confirmatory trial in second-line SCLC. This ongoing three-arm trial is comparing Zepzelca as either monotherapy or in combination with irinotecan to investigator's choice of irinotecan or topotecan.

Previous wording

In June 2022, we announced FDA had cleared our Investigational New Drug application for JZP815 and, in October 2022, we enrolled the first patient in a Phase 1 trial. JZP815 is an investigational stage pan-RAF kinase inhibitor that targets specific components of the mitogen-activated protein kinase pathway that, when activated by oncogenic mutations, can be a frequent driver of human cancer.

Current wording

In June 2022, we announced FDA had cleared our IND for JZP815 and, in October 2022, we enrolled the first patient in a Phase 1 trial. JZP815 is an investigational stage pan-RAF kinase inhibitor that targets specific components of the MAPK pathway that, when activated by oncogenic mutations, can be a frequent driver of human cancer.

Previous wording

In April 2022, we announced that we had entered into a licensing and collaboration agreement with Werewolf to acquire exclusive global development and commercialization rights to Werewolf's investigational WTX-613, now referred to as JZP898. Under the terms of the agreement, we made an upfront payment of $15.0 million to Werewolf, and Werewolf is eligible to receive development, regulatory and commercial milestone payments of up to $1.26 billion. If approved, Werewolf is eligible to receive a tiered, mid-single-digit percentage royalty on net sales of JZP898. This transaction underscores our commitment to enhancing our pipeline to deliver novel oncology therapies to patients, and also provides us with an opportunity to expand into immuno-oncology. JZP898 is a differentiated, conditionally-activated IFNα INDUKINE™ molecule. We initiated a Phase 1 clinical trial of JZP898 in late 2023.

Current wording

In April 2022, we announced that we had entered into a licensing and collaboration agreement with Werewolf to acquire exclusive, worldwide development and commercialization rights to Werewolf's investigational WTX-613, now referred to as JZP898. Under the terms of the agreement, we made an upfront payment of $15.0 million to Werewolf, and Werewolf is eligible to receive development, regulatory and commercial milestone payments of up to $1.26 billion. If approved, Werewolf is eligible to receive a tiered, mid-single-digit percentage royalty on net sales of JZP898. This provides us with an opportunity to expand into immuno-oncology. JZP898 is a differentiated, conditionally-activated IFNα INDUKINE™ molecule. In November 2023, we enrolled our first patient in a Phase 1 trial of JZP898.

Previous wording

In May 2022, we announced that we had entered into a licensing agreement with Sumitomo to acquire exclusive development and commercialization rights in the U.S., Europe and other territories for JZP441, also known as DSP-0187, a potent, highly selective oral orexin-2 receptor agonist with potential application for the treatment of narcolepsy, IH and other sleep disorders. Under the terms of the agreement, we made an upfront payment of $50.0 million to Sumitomo, and Sumitomo is eligible to receive development, regulatory and commercial milestone payments of up to $1.09 billion. If approved, Sumitomo is eligible to receive a tiered, low double-digit royalty on our net sales of JZP441. In November 2023, we announced that we achieved initial proof-of-concept in our Phase 1 clinical trial program in healthy volunteers as demonstrated by the Maintenance of Wakefulness Test (MWT). At that time, we also noted the program was being paused as we analyzed safety findings related to visual disturbances and cardiovascular effects; no liver toxicity signals were observed. Following additional review of the trial findings and input from FDA, we plan to initiate a small Phase 1b trial of JZP441 in narcolepsy Type 1 patients in 2025. We expect data from this trial will further our understanding of JZP441 and orexin-2 receptor agonism, providing learnings that could inform future development efforts.

Current wording

In May 2022, we announced that we had entered into a licensing agreement with Sumitomo to acquire exclusive development and commercialization rights in the U.S., Europe and other territories for JZP441. JZP441 is a potent, highly selective oral orexin-2 receptor agonist with potential application for the treatment of narcolepsy, IH and other sleep disorders. In November 2023, we announced that we achieved initial proof-of-concept in our Phase 1 clinical trial program in healthy volunteers as demonstrated by the MWT. In 2025, we initiated a small Phase 1b trial of JZP441 in narcolepsy Type 1 patients. Based on our continued assessment of the molecule, we made the decision to stop the development of JZP441 and end our partnership with Sumitomo.

Previous wording

Our operating plan assumes that Xywav, with 92% lower sodium compared to high-sodium oxybates (depending on the dose) absence of a sodium warning and dosing titration option, will remainthe #1 branded oxybate treatment for narcolepsy; the position it held based on revenue in the fourth quarter of 2024. In June 2021, FDA recognized seven years of ODE for Xywav in narcolepsy through July 21, 2027 (which was subsequently extended to January 21, 2028), stating that Xywav is clinically superior to Xyrem by means of greater safety due to reduced chronic sodium burden. While we expect that our business will continue to meaningfully depend on oxybate revenues, there is no guarantee that oxybate revenues will remain at current levels.

Current wording

In 2025, Xywav revenues meaningfully contributed to our business. Our current 2026 operating plan assumes that Xywav, with 92% lower sodium compared to high-sodium oxybates (depending on the dose), a dosing titration option and an absence of a sodium warning, will remainthe #1 branded oxybate treatment for narcolepsy; the position it held based on revenue in the fourth quarter of 2025. In June 2021, FDA recognized seven years of ODE for Xywav in narcolepsy through July 21, 2027 (which was subsequently extended to January 21, 2028), stating that Xywav is clinically superior to Xyrem by means of greater safety due to reduced chronic sodium burden. While we expect that our business will continue to meaningfully depend on oxybate revenues, there is no guarantee that oxybate revenues will remain at current levels.

Previous wording

In addition, in January 2023, our oxybate products began to face competition from an AG version of high-sodium oxybate pursuant to a settlement agreement we entered into with an ANDA filer. In July 2023, a volume-limited ANDA filer launched an AG version of high-sodium oxybate. These AG products have negatively impacted and are expected to continue to negatively impact Xyrem and Xywav sales for patients with narcolepsy. Specifically, a wholly owned subsidiary of Hikma launched its AG version of sodium oxybate in January 2023 and Amneal launched its AG version of sodium oxybate in July 2023. Hikma has elected to continue to sell the Hikma AG product, with royalties to be paid to us, for a total of up to four years beginning in January 2024, which election may be terminated by Hikma in accordance with the notice provisions in the agreements between the parties. We have the right to receive a meaningful royalty from Hikma on net sales of the Hikma AG product; the royalty rate was fixed for the second half of 2023. There was a substantial increase in the royalty rate beginning in January 2024, which will remain fixed for the duration of the agreement's term. We are also paid for supply of the Hikma AG product and reimbursed by Hikma for a portion of the services costs associated with the operation of the Xywav and Xyrem REMS, and distribution of the Hikma AG product. We also granted Hikma a license to launch its own generic sodium oxybate product but, if it elects to launch its own generic product, Hikma will no longer have the right to sell the Hikma AG product. In addition, Hikma would need to set up its own REMS (or join an existing REMS operated by another company), which must be open to any other company seeking to commercialize a sodium oxybate product. In our settlements with Amneal, Lupin, and Par, we granted each party the right to sell a limited volume of an AG product in the U.S. beginning on July 1, 2023 and ending on December 31, 2025, with royalties to be paid to us. Amneal launched its AG version of high-sodium oxybate in July 2023. At this time, Amneal has rights to sell a low-single-digit percentage of historical Xyrem sales over each 6-month sales period. At this time, Lupin and Par have elected not to launch an AG product. AG products will be distributed through the same REMS as Xywav and Xyrem. We also granted each of Amneal, Lupin and Par a license to launch its own generic sodium oxybate product under its ANDA on or after December 31, 2025, or earlier under certain circumstances, including the circumstance where Hikma elects to launch its own generic product. If Amneal, Lupin or Par elects to launch its own generic product under such circumstance, it will no longer have the right to sell an AG product. In addition, any company commercializing a generic version of high-sodium oxybate would need to establish its own REMS, or join an existing REMS operated by another company.

Current wording

Xywav and Xyrem face competition from Alkermes’ Lumryz (acquired through its acquisition of Avadel), a branded product for treatment of cataplexy and/or EDS in narcolepsy, which was launched in the U.S. market in June 2023. In addition, since January 2023, our oxybate products have faced competition from an AG version of high-sodium oxybate pursuant to a settlement agreement we entered into with an ANDA filer, and from July 2023 through the end of 2025, an additional AG version of high-sodium oxybate from a volume-limited ANDA filer. Specifically, a wholly-owned subsidiary of Hikma launched its AG version of sodium oxybate in January 2023 and Amneal launched its AG version of sodium oxybate in July 2023. In September, 2023, Hikma elected to continue to sell the Hikma AG product, with royalties to be paid to us, for an additional four years beginning in January 2024.

Previous wording

In the future, we expect our oxybate products to continue to face competition from generic versions of high-sodium oxybate pursuant to settlement agreements we entered into with multiple ANDA filers. In addition, we received notices in June 2021 and February 2023, that Lupin and Teva, respectively, filed ANDAs for generic versions of Xywav. On October 13, 2023, Lupin announced that it has received tentative approval for its application to market a generic version of Xywav. Generic competition can decrease the net prices at which branded products, such as Xywav and Xyrem are sold, as can competition from other branded products. In addition, we have increasingly experienced pressure from third party payors to agree to discounts, rebates or restrictive pricing terms, and we cannot guarantee we will be able to agree to commercially reasonable terms with PBMs, or similar organizations and other third party payors, or that we will be able to ensure patient access and acceptance on formularies. Entering into agreements with PBMs or similar organizations and payors to ensure patient access has and may continue to result in decreased net prices for some of our products. Moreover, generic or AG high-sodium oxybate products or branded high-sodium oxybate entrants in narcolepsy, such as Avadel’s Lumryz, have had and may continue to have the effect of changing payor or formulary coverage of Xywav or Xyrem in favor of other products, and indirectly adversely affect sales of Xywav and Xyrem.

Current wording

In the future, we expect our oxybate products to continue to face competition from generic versions of high-sodium oxybate pursuant to settlement agreements we entered into with multiple ANDA filers. In addition, we received notices in June 2021, February 2023 and July 2025 that Lupin, Teva and Granules, respectively, filed ANDAs for generic versions of Xywav. In January 2026, we received notices from Tris Pharma that it had filed with FDA a Section 505(b)(2) NDA for generic versions of Xyrem and Xywav. On October 13, 2023, Lupin announced that it has received tentative approval for its application to market a generic version of Xywav. Generic competition can decrease the net prices at which branded products, such as Xywav and Xyrem are sold, as can competition from other branded products. In addition, we have increasingly experienced pressure from third party payors to agree to discounts, rebates or restrictive pricing terms, and we cannot guarantee we will be able to agree to commercially reasonable terms with PBMs, or similar organizations and other third party payors, or that we will be able to ensure patient access and acceptance on formularies. Entering into agreements with PBMs or similar organizations and payors to ensure patient access has and may continue to result in decreased net prices for some of our products. Moreover, generic or AG high-sodium oxybate products or branded high-sodium oxybate entrants in narcolepsy, such as Alkermes’ Lumryz, have had and may continue to have the effect of changing payor or formulary coverage of Xywav or Xyrem in favor of other products, and indirectly adversely affect sales of Xywav and Xyrem.

Previous wording

In any event, we expect that the approval and launch of AG products or other generic versions of Xyrem or Xywav and the approval and launch of any other sodium oxybate product, such as Avadel’s Lumryz, or alternative product that treats narcolepsy will continue to have a negative impact on, and could have a material adverse effect on, our sales of Xywav and Xyrem and on our business, financial condition, results of operations and growth prospects.

Current wording

In any event, we expect that the approval and launch of AG products or other generic versions of Xyrem or Xywav and the approval and launch of any other sodium oxybate product, such as Alkermes’ Lumryz, or alternative product that treats narcolepsy will continue to have a negative impact on, and could have a material adverse effect on, our sales of Xywav and Xyrem and on our business, financial condition, results of operations and growth prospects.

Previous wording

Our financial condition, results of operations and growth prospects are also dependent on our ability to maintain or increase sales of Epidiolex/Epidyolex in the U.S. and Europe, which is subject to many risks and there is no guarantee that we will be able to continue to successfully commercialize Epidiolex/Epidyolex for its approved indications. The commercial success of Epidiolex/Epidyolex depends on the extent to which patients and physicians accept and adopt Epidiolex/Epidyolex as a treatment for seizures associated with LGS, DS and TSC, and we do not know whether our or others’ estimates in this regard will be accurate. Physicians may not prescribe Epidiolex and patients may be unwilling to use Epidiolex/Epidyolex if coverage is not provided or reimbursement is inadequate to cover a significant portion of the cost. Additionally, any negative development for Epidiolex/Epidyolex in the market, in clinical development for additional indications, or in regulatory processes in other jurisdictions, may adversely impact the commercial results and potential of Epidiolex/Epidyolex. Moreover, we expect that Epidiolex will face competition from generic products in the future. For example, in November and December 2022, we received notices from ten ANDA filers that they have each filed with FDA an ANDA for a generic version of Epidiolex. In addition, there are non-FDA approved cannabidiol preparations being made available from companies through the state-enabled medical marijuana industry, which might attempt to compete with Epidiolex. Thus, significant uncertainty remains regarding the commercial potential of Epidiolex/Epidyolex.

Current wording

Our financial condition, results of operations and growth prospects are also dependent on our ability to maintain or increase sales of Epidiolex/Epidyolex in the U.S. and Europe, which is subject to many risks and there is no guarantee that we will be able to continue to successfully commercialize Epidiolex/Epidyolex for its approved indications. The commercial success of Epidiolex/Epidyolex depends on the extent to which patients and physicians accept and adopt Epidiolex/Epidyolex as a treatment for seizures associated with LGS, DS and TSC, and we do not know whether our or others’ estimates in this regard will be accurate. Physicians may not prescribe Epidiolex/Epidyolex and patients may be unwilling to use Epidiolex/Epidyolex if coverage is not provided or reimbursement is inadequate to cover a significant portion of the cost. Additionally, any negative development for Epidiolex/Epidyolex in the market, in clinical development for additional indications, or in regulatory processes in other jurisdictions, may adversely impact the commercial results and potential of Epidiolex/Epidyolex. Moreover, we expect that Epidiolex will face competition from generic products in the future. We have settled patent litigation with each of the ten companies seeking to market a generic version of Epidiolex in the U.S. by granting each of the Epidiolex ANDA Filers a license to manufacture, market, and sell its own generic version of Epidiolex beginning in the very late 2030s, or earlier under certain circumstances, including but not limited to the launch of another generic Epidiolex product or a final decision that all unexpired claims of the Epidiolex patents are not infringed, or are invalid and/or unenforceable. In addition, there are non-FDA approved CBD preparations being made available from companies through the state-enabled medical marijuana industry, which might attempt to compete with Epidiolex. Thus, significant uncertainty remains regarding the commercial potential of Epidiolex/Epidyolex.

Previous wording

In addition to our neuroscience products and product candidates, we are commercializing a portfolio of oncology products, including Rylaze, Zepzelca, Ziihera, Defitelio and Vyxeos. An inability to effectively commercialize Rylaze, Zepzelca, Ziihera, Defitelio and Vyxeos and to maximize their potential where possible through successful research and development activities could have a material adverse effect on our business, financial condition, results of operations and growth prospects.

Current wording

In addition to Xywav, Xyrem and Epidiolex/Epidyolex, we are commercializing a portfolio of oncology products, including Rylaze, Zepzelca, Ziihera, Modeyso, Vyxeos and Defitelio. An inability to effectively commercialize Rylaze, Zepzelca, Ziihera, Modeyso, Vyxeos and Defitelio and to maximize their potential where possible through successful R&D activities could have a material adverse effect on our business, financial condition, results of operations and growth prospects.

Previous wording

In addition to continued investment in our R&D pipeline, we intend to continue to grow our business by acquiring or in-licensing, and developing, including with collaboration partners, additional products and product candidates that we believe are highly differentiated and have significant commercial potential. Failure to identify and acquire, in-license or develop additional products or product candidates, successfully manage the risks associated with integrating any products or product candidates into our portfolio or the risks arising from anticipated and unanticipated problems in connection with an acquisition or in-licensing, such as the GW Acquisition, could have a material adverse effect on our business, results of operations and financial condition.

Current wording

In addition to continued investment in our R&D pipeline, we intend to continue to grow our business by acquiring or in-licensing, and developing, including with collaboration partners, additional products and product candidates that we believe are highly differentiated and have significant commercial potential. Failure to identify and acquire, in-license or develop additional products or product candidates, successfully manage the risks associated with integrating any products or product candidates into our portfolio or the risks arising from anticipated and unanticipated problems in connection with an acquisition or in-licensing, such as the recent Chimerix Acquisition, could have a material adverse effect on our business, results of operations and financial condition.

Previous wording

Our industry has been, and is expected to continue to be, subject to healthcare cost containment and drug pricing scrutiny by regulatory agencies in the U.S. and internationally. If new healthcare policies or reforms intended to curb healthcare costs are adopted or if we experience negative publicity with respect to pricing of our products or the pricing of pharmaceutical drugs generally, the prices that we charge for our products may be affected, our commercial opportunity may be limited and/or our revenues from sales of our products may be negatively impacted. For example, the Inflation Reduction Act of 2022 among other things, requires the U.S. Department of Health and Human Services Secretary to negotiate, with respect to Medicare units and subject to a specified cap, the price of a set number of certain high Medicare spend drugs and biologicals per year starting in 2026, penalizes manufacturers of certain Medicare Parts B and D drugs for price increases above inflation, and makes several changes to the Medicare Part D benefit, including a limit on annual out-of-pocket costs and a change in manufacturer liability under the program, that could negatively affect our business and financial condition. In addition, under the Medicaid Drug Rebate Program, rebates owed by manufacturers are no longer subject to a cap on the rebate amount, which could adversely affect our rebate liability. We are also subject to increasing pricing pressure and restrictions on reimbursement imposed by payors. If we fail to obtain and maintain adequate formulary positions and institutional access for our current products and future approved products, we will not be able to achieve a return on our investment and our business, financial condition, results of operations and growth prospects would be materially adversely affected.

Current wording

Our industry has been, and is expected to continue to be, subject to healthcare cost containment and drug pricing scrutiny by regulatory agencies in the U.S. and internationally. If new healthcare policies or reforms intended to curb healthcare costs are adopted or if we experience negative publicity with respect to pricing of our products or the pricing of pharmaceutical drugs generally, the prices that we charge for our products may be affected, our commercial opportunity may be limited and/or our revenues from sales of our products may be negatively impacted. For example, the IRA, among other things, requires the HHS Secretary to negotiate, with respect to Medicare units and subject to a specified cap, the price of a set number of certain high Medicare spend drugs and biologicals per year starting in 2026 and penalizes manufacturers of certain Medicare Parts B and D drugs for price increases above inflation. The IRA also made several changes to the Medicare Part D benefit, including a limit on annual out-of-pocket costs and a change in manufacturer liability under the program, that could negatively affect our business and financial condition. In addition, under the Medicaid Drug Rebate Program, rebates owed by manufacturers are no longer subject to a cap on the rebate amount, which could adversely affect our rebate liability. Moreover, on May 12, 2025, the White House issued an Executive Order directing federal agencies to pursue MFN pricing for certain prescription drugs, under which U.S. prices would be indexed to the lowest prices available in select OECD countries and on September 30, 2025, the current administration announced the first of several agreements with major pharmaceutical companies that requires drug manufacturers to offer, through a direct-to-consumer platform, U.S. patients and Medicaid programs prescription drug MFN pricing equal to or lower than those paid in other developed nations, with additional mandates for direct-to-patient discounts and repatriation of foreign revenues, in exchange for tariff relief. The White House is currently seeking voluntary pricing concessions from certain manufacturers, with the potential for administrative action to follow if companies do not engage constructively, creating uncertainty around future pricing and reimbursement that could negatively impact our U.S. revenues and overall business performance, and also is in the process of implementing or considering various Center for Medicare & Medicaid Innovation models that would rely on MFN reference pricing. We are also subject to increasing pricing pressure and restrictions on reimbursement imposed by payors. If we fail to obtain and maintain adequate formulary positions and institutional access for our current products and future approved products, we will not be able to achieve a return on our investment and our business, financial condition, results of operations and growth prospects would be materially adversely affected.

Previous wording

While certain preparations of cannabis remain Schedule I controlled substances, if such products are approved by FDA for medical use in the U.S. they are rescheduled to Schedules II-V, since approval by FDA satisfies the “accepted medical use” requirement; or such products may be removed from control under the Controlled Substances Act entirely. If any of our product candidates receive FDA approval, the Department of Health and Human Services and the U.S. Drug Enforcement Administration will make a scheduling determination. U.S. or foreign regulatory agencies may request additional information regarding the abuse potential of our products which may require us to generate more clinical or other data than we currently anticipate to establish whether or to what extent the substance has an abuse potential, which could increase the cost, delay the approval and/or delay the launch of that product.

Current wording

While certain preparations of cannabis remain Schedule I controlled substances, if such products are approved by FDA for medical use in the U.S. they are rescheduled to Schedules II-V, since approval by FDA satisfies the “accepted medical use” requirement; or such products may be removed from control under the Controlled Substances Act entirely. If any of our product candidates receive FDA approval, the HHS and the DEA will make a scheduling determination. U.S. or foreign regulatory agencies may request additional information regarding the abuse potential of our products which may require us to generate more clinical or other data than we currently anticipate to establish whether or to what extent the substance has an abuse potential. This generation of data could increase the cost, delay the approval and/or delay the launch of that product.

Previous wording

Finally, business practices by pharmaceutical companies, including product formulation improvements, patent litigation settlements, and REMS programs, have increasingly drawn public scrutiny from legislators and regulatory agencies, with allegations that such programs are used as a means of improperly blocking or delaying competition. Government investigations with respect to our business practices, including as they relate to the Xywav and Xyrem REMS, the launch of Xywav, our Xyrem patent litigation settlement agreements or otherwise, could cause us to incur significant monetary charges to resolve these matters and could distract us from the operation of our business and execution of our strategy. In addition, from June 2020 to May 2022, a number of lawsuits were filed on behalf of purported direct and indirect Xyrem purchasers, alleging that the patent litigation settlement agreements we entered with certain generic companies violate state and federal antitrust and consumer protection laws. For additional information on these lawsuits and other legal matters, see Note 13, Commitments and Contingencies-Legal Proceedings of the Notes to Consolidated Financial Statements, included in Part IV of this Annual Report on Form 10‑K. It is possible that additional lawsuits will be filed against us making similar or related allegations. We cannot predict the outcome of these or potential additional lawsuits; however, if the plaintiffs were to be successful in their claims against us, they may be entitled to injunctive relief or we may be required to pay significant monetary damages. Moreover, we are, and expect to continue to be, the subject of various claims, legal proceedings, and government investigations apart from those set forth above that have arisen in the ordinary course of business that have not yet been fully resolved and that could adversely affect our business and the execution of our strategy. Any of the foregoing risks and uncertainties could have a material adverse effect on our business, financial condition, results of operations and growth prospects.

Current wording

In addition, business practices by pharmaceutical companies, including product formulation improvements, patent litigation settlements, and REMS programs, have increasingly drawn public scrutiny from legislators and regulatory agencies, with allegations that such programs are used as a means of improperly blocking or delaying competition. Government investigations with respect to our business practices, including as they relate to the Xywav and Xyrem REMS, the launch of Xywav, our Xyrem patent litigation settlement agreements or otherwise, could cause us to incur significant monetary charges to resolve these matters and could distract us from the operation of our business and execution of our strategy. In addition, from June 2020 to May 2022, a number of lawsuits were filed on behalf of purported direct and indirect Xyrem purchasers, alleging that the patent litigation settlement agreements we entered with certain generic companies violate state and federal antitrust and consumer protection laws. As of October 2025, we resolved the entirety of the Xyrem Antitrust Litigation. For additional information on these lawsuits, as well as the settlement agreements with respect thereto and other legal matters, see Note 10, Commitments and Contingencies-Legal Proceedings of the Notes to Consolidated Financial Statements, included in Part IV of this Annual Report on Form 10‑K. It is possible that additional lawsuits will be filed against us making similar or related allegations. We cannot predict the outcome of any potential additional lawsuits; however, if the plaintiffs were to be successful in their claims against us, they may be entitled to injunctive relief or we may be required to pay significant monetary damages. Moreover, we are, and expect to continue to be, the subject of various claims, legal proceedings, and government investigations apart from those set forth above that have arisen in the ordinary course of business that have not yet been fully resolved and that could adversely affect our business and the execution of our strategy. Any of the foregoing risks and uncertainties could have a material adverse effect on our business, financial condition, results of operations and growth prospects.

Previous wording

(2)Net product sales of Sunosi U.S. are included until the date of divestment to Axsome of May 9, 2022.

Current wording

(1)Net product sales of Sativex are included until the date of divestment, October 31, 2025.

Previous wording

(1)Comparison to prior period is not meaningful.

Current wording

(2)Comparison to prior period is not meaningful.

Previous wording

Xywav product sales increased in 2024 compared to 2023, primarily due to increased sales volumes of 16% and, to a lesser extent, a higher selling price, offset by higher gross to net deductions. We continue to see Xywav adoption in patients with narcolepsy driven by educational initiatives around efficacy and the benefit of lowering sodium intake. In addition, Xywav product sales were positively impacted by adoption in IH; Xywav is the only oxybate therapy approved to treat IH and we see continued growth of new prescribers. Exiting 2024, there were 10,250 patients taking Xywav for narcolepsy and 3,900 taking Xywav for IH, an increase of approximately 8% and 41%, respectively, compared to 2023. Xywav product sales increased in 2023 compared to 2022, primarily due to increased sales volumes of 28% and, to a lesser extent, a higher selling price. Xyrem product sales decreased in 2024 compared to 2023, primarily due to decreased sales volumes of 57%, due to high-sodium oxybate competition and the adoption of Xywav by existing Xyrem patients and higher gross to net deductions, partially offset by a higher selling price. Xyrem product sales decreased in 2023 compared to 2022, primarily due to decreased sales volumes of 49%, reflecting the adoption of Xywav by existing Xyrem patients and the impact of high-sodium oxybate competition, offset by a higher selling price and lower gross to net deductions. Epidiolex/Epidyolex product sales increased by 15% in 2024 compared to 2023, primarily due to increased sales volumes of 12% due to increased demand, and, to a lesser extent, geographic expansion and a higher average selling price. Epidiolex/Epidyolex product sales increased by 15% in 2023 compared to 2022, primarily due to increased sales volumes of 15% due to increased demand and expansion in European markets and, to a lesser extent, a higher average selling price, partially offset by higher gross to net deductions.

Current wording

Xywav product sales increased by 12% in 2025 compared to 2024, primarily due to increased sales volumes of 14% and, to a lesser extent, a higher selling price, partially offset by higher gross to net deductions. We continue to see Xywav adoption in patients with narcolepsy driven by educational initiatives around efficacy and the benefit of lowering sodium intake. In addition, Xywav product sales were positively impacted by adoption in IH; Xywav is the only oxybate therapy approved to treat IH and we see continued growth of new prescribers. Exiting 2025, there were 10,950 patients taking Xywav for narcolepsy and 5,225 patients taking Xywav for IH, an increase of approximately 7% and 34%, respectively, compared to 2024. Xywav product sales increased in 2024 compared to 2023, primarily due to increased sales volumes of 16% and, to a lesser extent, a higher selling price, partially offset by higher gross to net deductions. Xyrem product sales decreased in 2025 compared to 2024, primarily due to decreased sales volumes of 33%, due to high-sodium oxybate competition and the adoption of Xywav by existing Xyrem patients and higher gross to net deductions, partially offset by a higher selling price. Xyrem product sales decreased in 2024 compared to 2023, primarily due to decreased sales volumes of 57%, due to high-sodium oxybate competition and the adoption of Xywav by existing Xyrem patients and higher gross to net deductions, partially offset by a higher selling price. Epidiolex/Epidyolex product sales increased by 9% in 2025 compared to 2024, primarily due to increased sales volumes of 7% due to increased demand, and a higher average selling price. Epidiolex/Epidyolex product sales increased by 15% in 2024 compared to 2023, primarily due to increased sales volumes of 12% due to increased demand, and, to a lesser extent, geographic expansion and a higher average selling price.

Previous wording

Rylaze/Enrylaze product sales increased in 2024 compared to 2023, primarily due to a higher average selling price, partially offset by higher gross to net deductions. Rylaze sales volumes in 2024 have been negatively impacted due to an update to the COG pediatric treatment protocols for ALL, which impacts the timing of asparaginase administration. While this had a temporary negative impact on Rylaze product sales in the latter part of 2024, we do not expect it will affect ongoing demand and we still expect our product sales to normalize by early 2025. Rylaze remains the only therapy available to patients in the U.S. who have a hypersensitivity reaction to E. coli-derived asparaginase. Rylaze product sales increased in 2023 compared to 2022, primarily due to increased sales volumes of 37% and, to a lesser extent, a higher selling price, offset by higher gross to net deductions. The increased sales volumes reflected the significant unmet patient need for a high-quality, reliable supply of Erwinia asparaginase for patients with ALL. Zepzelca product sales increased by 11% in 2024 compared to 2023, primarily due to increased sales volumes and a higher selling price, offset by higher gross to net deductions. Zepzelca product sales increased by 7% in 2023 compared to 2022, primarily due to a higher selling price and increased sales volumes, offset by higher gross to net deductions. Defitelio/defibrotide product sales increased by 18% in 2024 compared to 2023, primarily due to increased sales volumes, and to a lesser extent, a higher average selling price. Defitelio/defibrotide product sales decreased by 5% in 2023 compared to 2022, primarily due to a decrease in sales volumes, partially offset by a higher selling price. Vyxeos product sales increased by 10% in 2024 compared to 2023, primarily due to increased sales volumes, partially offset by a lower average selling price due to regional mix. Vyxeos product sales increased by 15% in 2023 compared to 2022, primarily due to increased sales volumes and to a lesser extent, a higher selling price, partially offset by higher gross to net deductions.

Current wording

Rylaze/Enrylaze product sales decreased by 2% in 2025 compared to 2024, primarily due to decreased sales volumes of 1% and higher gross to net deductions, partially offset by a higher average selling price. Updates to pediatric treatment protocols for ALL were implemented in 2024 and impacted Rylaze in 2025. The protocols have been widely adopted and Rylaze use within the asparaginase class remains broadly stable. Rylaze product sales increased in 2024 compared to 2023, primarily due to a higher average selling price, partially offset by higher gross to net deductions. Zepzelca product sales decreased by 4% in 2025 compared to 2024, primarily due to decreased sales volumes, partially offset by a higher selling price and lower gross to net deductions. Zepzelca product sales have been impacted by increased competition in second-line SCLC and treatment protocol updates delaying progression of first-line limited-stage SCLC patients to the second-line setting. In October 2025, Zepzelca in combination with atezolizumab or atezolizumab and hyaluronidase-tqjs was approved as a first-line maintenance treatment for adults with ES-SCLC whose disease has not progressed after first-line induction therapy with atezolizumab, carboplatin and etoposide. Zepzelca product sales increased by 11% in 2024 compared to 2023, primarily due to increased sales volumes and a higher selling price, offset by higher gross to net deductions. Defitelio/defibrotide product sales decreased by 8% in 2025 compared to 2024, primarily due to decreased sales volumes, partially offset by the positive impact of foreign exchange rates and a higher average selling price. Defitelio/defibrotide product sales increased by 18% in 2024 compared to 2023, primarily due to increased sales volumes, and to a lesser extent, a higher average selling price. Vyxeos product sales decreased by 10% in 2025 compared to 2024, primarily due to decreased sales volumes, partially offset by a higher average selling price. Vyxeos product sales increased by 10% in 2024 compared to 2023, primarily due to increased sales volumes, partially offset by a lower average selling price due to regional mix. Modeyso product sales were $48.0 million in 2025, following its product launch in August 2025 and Ziihera product sales were $24.8 million in 2025, following product launch in December 2024.

Previous wording

Royalties and contract revenues increased in 2024 compared to 2023 and in 2023 compared to 2022 primarily due to royalty revenue received from Hikma on net sales of their high-sodium oxybate AG. We expect royalties and contract revenues to increase in 2025 compared to 2024, primarily due to increased royalty revenues arising from net sales of high-sodium oxybate AG.

Current wording

Royalties and contract revenues in 2025 were in line with 2024. Royalties and contract revenues increased in 2024 compared to 2023, primarily due to royalty revenue received from Hikma on net sales of their high-sodium oxybate AG.

Previous wording

Cost of product sales increased in 2024 compared to 2023, due to increased inventory provisions and changes in product mix, offset by a decrease in the fair value step-up expense, of $16.4 million. Cost of product sales decreased in 2023 compared to 2022, primarily due to a reduction in the fair value step-up expense of $121.9 million and the impact of an expense for past royalties recorded in 2022 in connection with a settlement agreement with Otsuka, partially offset by changes in product mix. Gross margin as a percentage of net product sales was 88.3% in both 2024 and 2023 and 85.2% in 2022. The increase in our gross margin percentage in 2023 compared to 2022 was primarily due to the decrease in the fair value step-up expense in 2023 and the impact of the Otsuka royalty expense in 2022.

Current wording

Cost of product sales increased in 2025 compared to 2024, primarily due to changes in product mix, and to a lesser extent, an increase in the fair value step-up expense, of $12.9 million. Cost of product sales increased in 2024 compared to 2023, primarily due to increased inventory provisions and changes in product mix, offset by a decrease in the fair value step-up expense, of $16.4 million. Gross margin as a percentage of net product sales was 87.5% in 2025 and 88.3% in both 2024 and 2023. The decrease in our gross margin percentage in 2025 compared to 2024 was primarily due to changes in product mix and the increase in the fair value step-up expense in 2025.

Previous wording

We expect our cost of product sales to increase in 2025 compared to 2024, primarily driven by changes in product mix.

Current wording

We expect our cost of product sales in 2026 to be in line with 2025.

Previous wording

Selling, general and administrative expenses increased in 2024 compared to 2023, primarily due to increased compensation-related expenses of $72.6 million, primarily driven by higher headcount and increased investment in sales and marketing of $19.3 million, in support of our commercial portfolio and increased litigation costs of $13.6 million, partially offset by costs relating to the impairment of facility assets of $61.7 million and program terminations of $23.5 million incurred in 2023. Selling, general and administrative expenses decreased in 2023 compared to 2022, primarily due to the loss on disposal of Sunosi of $40.8 million, restructuring costs of $22.1 million and GW related integration costs of $21.1 million incurred in 2022, together with a reduction in costs related to program terminations of $19.1 million and in compensation related expenses, partially offset by an impairment of facility assets of $61.7 million in 2023. We expect selling, general and administrative expenses in 2025 to increase compared to 2024, primarily due to investment in our commercial portfolio, including the launch of Ziihera, along with increased compensation-related expenses.

Current wording

Selling, general and administrative expenses increased in 2025 compared to 2024, primarily due to Xyrem antitrust litigation settlements of $233.5 million, the Avadel litigation settlement of $90.0 million and an increase in compensation-related expenses of $96.7 million, primarily driven by higher headcount and increased share-based compensation expense, increased investment in sales and marketing of $21.9 million in support of our commercial portfolio, and included integration expenses related to the Chimerix Acquisition of $19.4 million. Selling, general and administrative expenses increased in 2024 compared to 2023, primarily due to increased compensation-related expenses of $72.6 million, primarily driven by higher headcount and increased investment in sales and marketing of $19.3 million, in support of our commercial portfolio and increased litigation costs of $13.6 million, partially offset by costs relating to the impairment of facility assets of $61.7 million and program terminations of $23.5 million incurred in 2023.

Previous wording

Research and development expenses consist primarily of costs related to clinical studies and outside services, personnel expenses, milestone expenses and other research and development costs. Clinical study and outside services costs relate primarily to services performed by clinical research organizations, materials and supplies, and other third party fees. Personnel expenses relate primarily to salaries, benefits and share-based compensation. Other research and development expenses primarily include overhead allocations consisting of various support and facilities-related costs. We do not track fully-burdened research and development expenses on a project-by-project basis. We manage our research and development expenses by identifying the research and development activities that we anticipate will be performed during a given period and then prioritizing efforts based on our assessment of which development activities are important to our business and have a reasonable probability of success, and by dynamically allocating resources accordingly. We also continually review our development pipeline projects and the status of their development and, as necessary, reallocate resources among our development pipeline projects that we believe will best support the future growth of our business.

Current wording

R&D expenses consist primarily of costs related to clinical studies and outside services, personnel expenses, milestone expenses and other R&D costs. Clinical study and outside services costs relate primarily to services performed by clinical research organizations, materials and supplies, and other third party fees. Personnel expenses relate primarily to salaries, benefits and share-based compensation. Other R&D expenses primarily include overhead allocations consisting of various support and facilities-related costs. We do not track fully-burdened R&D expenses on a project-by-project basis. We manage our R&D expenses by identifying the R&D activities that we anticipate will be performed during a given period and then prioritizing efforts based on our assessment of which development activities are important to our business and have a reasonable probability of success, and by dynamically allocating resources accordingly. We also continually review our development pipeline projects and the status of their development and, as necessary, reallocate resources among our development pipeline projects that we believe will best support the future growth of our business.