Jazz Pharmaceuticals Announces Full Year and Fourth Quarter 2025 Financial Results and Provides 2026 Financial Guidance

– Record total revenues of $4.3 billion in 2025 (+5% YoY) and $1.2 billion (+10% YoY) in 4Q25 –

– Expect to complete sBLA submission in 1Q26 under RTOR for zanidatamab in HER2+ 1L GEA –

– Xywav^® achieved $1.7 billion in revenue and 12% YoY growth in 2025 –

– Epidiolex^® achieved $1.1 billion in revenue and 9% YoY growth in 2025 –

– Strong Modeyso™ launch with $37 million in revenue in first full quarter on market –

– Expect 2026 total revenues of $4.25 to $4.50 billion –

DUBLIN, Feb. 24, 2026 /PRNewswire/ -- Jazz Pharmaceuticals plc (Nasdaq: JAZZ) today announced financial results for the full year and fourth quarter of 2025 and provided financial guidance for 2026.

"2025 was an exceptional year for Jazz, representing our 21^st consecutive year of top-line growth and underscoring our commitment to operational excellence as we deliver meaningful innovation for patients," said Renee Gala, president and chief executive officer of Jazz Pharmaceuticals. "In the fourth quarter, our disciplined execution resulted in $1.2 billion in revenue, reflecting 10% year-over-year growth and our highest revenue quarter ever. This performance provides us with strong momentum into 2026, as we prepare for the potential launch of zanidatamab in GEA, sustain launch execution for Modeyso and Zepzelca^®, and reinforce the differentiated profiles of Epidiolex and Xywav as the leading branded treatments for epilepsy and narcolepsy, respectively. In parallel, we continue to advance our pipeline and pursue a corporate development strategy aligned with our rare disease focus that supports durable growth and long-term value creation for patients and shareholders."

"Jazz had a transformative year across our R&D pipeline, led by the HERIZON-GEA-01 data, which we believe firmly positions zanidatamab as the HER2-targeted agent of choice, with the potential to reshape first-line treatment for HER2+ metastatic GEA patients," said Rob Iannone, M.D., M.S.C.E., executive vice president, global head of research and development, and chief medical officer of Jazz Pharmaceuticals. "We expect to build on this progress in 2026, as these results not only highlight zanidatamab's potential to help patients with GEA, but also de-risk our clinical trials in additional indications, including HER2+ metastatic breast cancer."

Key 2025 Highlights

• Total revenues in 2025 grew to $4.3 billion (+5% year-over-year (YoY)), generating $1.4 billion in cash from operations.
• Research & Development:
  • Practice-changing Phase 3 HERIZON-GEA-01 results support zanidatamab as the HER2-targeted agent of choice in HER2+ 1L gastroesophageal adenocarcinoma (GEA), regardless of PD-L1 status.
  • Multiple registrational trials of zanidatamab are underway, including in metastatic breast cancer (mBC), supporting a broad development program designed to maximize patient impact and long-term shareholder value.
• Commercial:
  • Continued leadership in rare sleep with Xywav net product sales increasing to $1.7 billion (+12% YoY) and total sleep franchise¹ revenues exceeding $2 billion in 2025.
  • Epidiolex/Epidyolex^® generated more than $1 billion in 2025 net product sales (+9% YoY).
  • Completed acquisition of Chimerix Inc., secured FDA approval for and successfully launched Modeyso (dordaviprone) in H3 K27M-mutant diffuse midline glioma, achieving $48 million in sales since launch in August 2025.
  • Received FDA approval and launched Zepzelca, in combination with atezolizumab, for first-line maintenance treatment of extensive-stage small cell lung cancer.
• Company expects 2026 total revenue of between $4.25 and $4.50 billion, with double-digit growth across the combined epilepsy and oncology franchises, and Xywav revenue flat to up mid-single digits.
• Tom Riga was named chief business officer to accelerate corporate development efforts across rare disease.

Business Updates

Xywav (calcium, magnesium, potassium, and sodium oxybates) oral solution:

• Xywav net product sales increased 12% to $1.7 billion in 2025 and increased 16% to $465 million in 4Q25 compared to the same periods in 2024.
• Strong new patient growth continued, with approximately 500 net patient adds in 4Q25. There were approximately 16,175 active patients exiting the quarter, comprised of approximately 10,950 narcolepsy patients and approximately 5,225 idiopathic hypersomnia (IH) patients.

Epidiolex/Epidyolex (cannabidiol):

• Epidiolex/Epidyolex achieved blockbuster status in 2025 with net product sales increasing 9% to $1.1 billion in 2025 and increasing 4% to $287 million in 4Q25 compared to the same periods in 2024.

Ziihera^® (zanidatamab-hrii): 

• Ziihera net product sales in biliary tract cancer (BTC) were $25 million in 2025 and $9 million in 4Q25 following product launch in December 2024.
• Expect to complete supplemental biologics license application (sBLA) submission under Real Time Oncology Review (RTOR) in 1Q26 with potential launch in 1L HER2+ GEA in 2H26.
• FDA granted Breakthrough Therapy designation (BTD) for zanidatamab's development for patients with HER2+ unresectable locally advanced or metastatic GEA.
• Submitted HERIZON-GEA-01 data for potential inclusion in National Comprehensive Cancer Network (NCCN) guidelines.
• EmpowHER-BC-303 trial in mBC patients previously treated with, or intolerant to, trastuzumab deruxtecan on track to complete enrollment in 1H27, with top-line results expected in late 2027 or early 2028.

Modeyso (dordaviprone): 

• Following product launch in August 2025, Modeyso net product sales were $48 million in 2025 and $37 million in 4Q25.
• The Company sold its Rare Pediatric Disease Priority Review Voucher for gross proceeds of $200 million (50% to Jazz).

Zepzelca (lurbinectedin): 

• Zepzelca net product sales decreased 4% to $307 million in 2025 and increased 15% to $90 million in 4Q25 compared to the same periods in 2024.

Financial Highlights

Reconciliations of applicable GAAP reported to non-GAAP adjusted information are included at the end of this press release.

Total Revenues

Total revenues increased 5% in 2025 and 10% in 4Q25 compared to the same periods in 2024.

Total neuroscience revenue, including high-sodium oxybate AG royalty revenue, was $3.1 billion in 2025, an increase of 6% compared to $2.9 billion in 2024, and $848 million in 4Q25, an increase of 8% compared to $786 million in 4Q24. The increase in both periods was primarily due to higher Xywav and Epidiolex/Epidyolex net product sales, partially offset by decreased Xyrem net product sales.

Oncology net product sales were $1.1 billion in 2025, an increase of 2% compared to 2024, and $337 million in 4Q25, an increase of 16% compared to $292 million in 4Q24, primarily due to the inclusion of Modeyso and Ziihera net product sales in both periods. The increase in 4Q25 also included higher Zepzelca net product sales, partially offset by decreased Vyxeos^® net product sales.

Operating Expenses and Income Tax (Benefit) Expense

Changes in operating expenses and income tax (benefit) expense in 2025 and 4Q25 over the prior year periods are primarily due to the following:

• Cost of product sales, on a GAAP and non-GAAP adjusted basis, increased in 2025 compared to 2024, primarily due to changes in product mix. Cost of product sales, on a GAAP basis, in 2025 included higher acquisition accounting inventory fair value step up expense compared to 2024. Cost of product sales, on a GAAP and non-GAAP adjusted basis, increased in 4Q25 compared to 4Q24, primarily due to changes in product mix, partially offset by lower inventory provisions.
• Selling, general and administrative (SG&A) expenses, on a GAAP and non-GAAP adjusted basis, increased in 2025 compared to 2024, primarily due to Xyrem antitrust litigation settlements of $234 million, the Avadel litigation settlement of $90 million and higher compensation-related expenses. SG&A expenses, on a GAAP and non-GAAP adjusted basis, increased in 4Q25 compared to 4Q24, primarily due to higher compensation-related expenses.
• Research and development (R&D) expenses, on a GAAP and non-GAAP adjusted basis, decreased in 2025 and 4Q25, compared to the same periods in 2024, primarily due to lower clinical study costs primarily related to zanidatamab as a result of timing of clinical trial activities, JZP385 (essential tremor) following discontinuation of this program, and JZP258 (XYLO/DUET) due to the completion of these trials in the first half of 2025, partially offset by the addition of costs relating to Modeyso and increased personnel costs following the acquisition of Chimerix.
• Acquired in-process research and development (IPR&D) in 2025, on a GAAP and non-GAAP adjusted basis, represents the value allocated to Modeyso in the Chimerix Acquisition of $905 million and the upfront payment made in connection with our global license agreement with Saniona of $43 million.
• Income tax benefit in 2025, on a GAAP and non-GAAP adjusted basis, included a benefit of $213 million on recognition of certain U.S. federal and state deferred tax assets acquired through the Chimerix acquisition. Income tax benefit, on a GAAP and non-GAAP adjusted basis, in 4Q24 was primarily due to patent box benefits recognized.

Cash Flow and Balance Sheet
As of December 31, 2025, cash, cash equivalents and investments were $2.4 billion, and the outstanding principal balance of the Company's long-term debt was $5.4 billion. In addition, the Company had undrawn borrowing capacity under a revolving credit facility of $885 million. For the year ended December 31, 2025, the Company generated $1.4 billion of cash from operations reflecting strong business performance and continued financial discipline.

2026 Financial Guidance 
Jazz Pharmaceutical's full year 2026 financial guidance is as follows:

Conference Call Details
Jazz Pharmaceuticals will host an investor conference call and live audio webcast today at 4:30 p.m. ET (9:30 p.m. GMT) to provide a business and financial update and discuss its 2025 full year and 4Q25 results and 2026 guidance.

Interested parties may register for the call here or via the Investors section of the Jazz Pharmaceuticals website at www.jazzpharmaceuticals.com. To ensure a timely connection, it is recommended that participants register at least 15 minutes prior to the scheduled webcast.

A replay of the webcast will be available via the Investors section of the Jazz Pharmaceuticals website at www.jazzpharmaceuticals.com.

About Jazz Pharmaceuticals
Jazz Pharmaceuticals plc (NASDAQ: JAZZ) is a global biopharma 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 research and development advancements across our robust pipeline of innovative therapeutics. Jazz is headquartered in Dublin, Ireland with research and development laboratories, manufacturing facilities and employees in multiple countries committed to serving patients worldwide. Please visit www.jazzpharmaceuticals.com for more information.

Non-GAAP Financial Measures
To supplement Jazz Pharmaceuticals' financial results and guidance presented in accordance with U.S. generally accepted accounting principles (GAAP), the Company uses certain non-GAAP (also referred to as adjusted or non-GAAP adjusted) financial measures in this press release and the accompanying tables. In particular, the Company presents non-GAAP adjusted net income (and the related per share measure) and its line-item components, as well as certain non-GAAP adjusted financial measures derived therefrom, including non-GAAP adjusted gross margin percentage and non-GAAP adjusted effective tax rate. Non-GAAP adjusted net income (and the related per share measure) and its line-item components exclude from GAAP reported net income (loss) (and the related per share measure) and its line-item components certain items, as detailed in the reconciliation tables that follow, and in the case of non-GAAP adjusted net income (and the related per share measure), adjust for the income tax effect of the non-GAAP adjustments. In this regard, the components of non-GAAP adjusted net income, including non-GAAP adjusted cost of product sales, SG&A expenses and R&D expenses, are income statement line items prepared on the same basis as, and therefore components of, the overall non-GAAP adjusted net income measure.

The Company believes that each of these non-GAAP financial measures provides useful supplementary information to, and facilitates additional analysis by, investors and analysts and that each of these non-GAAP financial measures, when considered together with the Company's financial information prepared in accordance with GAAP, can enhance investors' and analysts' ability to meaningfully compare the Company's results from period to period, to its forward-looking guidance, and to identify operating trends in the Company's business. In addition, these non-GAAP financial measures are regularly used by investors and analysts to model and track the Company's financial performance. Jazz Pharmaceuticals' management also regularly uses these non-GAAP financial measures internally to understand, manage and evaluate the Company's business and to make operating decisions, and compensation of executives is based in part on certain of these non-GAAP financial measures. Because these non-GAAP financial measures are important internal measurements for Jazz Pharmaceuticals' management, the Company also believes that these non-GAAP financial measures are useful to investors and analysts since these measures allow for greater transparency with respect to key financial metrics the Company uses in assessing its own operating performance and making operating decisions. These non-GAAP financial measures are not meant to be considered in isolation or as a substitute for comparable GAAP measures; should be read in conjunction with the Company's consolidated financial statements prepared in accordance with GAAP; have no standardized meaning prescribed by GAAP; and are not prepared under any comprehensive set of accounting rules or principles in the reconciliation tables that follow. In addition, from time to time in the future there may be other items that the Company may exclude for purposes of its non-GAAP financial measures; and the Company has ceased, and may in the future cease, to exclude items that it has historically excluded for purposes of its non-GAAP financial measures. In this regard, commencing with the first quarter of 2025, the Company is no longer including an adjustment for non-cash interest expense in the Company's non-GAAP adjusted financial measures. For purposes of comparability, non-GAAP adjusted financial measures for the 2024 periods have been updated to reflect this change. Likewise, the Company may determine to modify the nature of its adjustments to arrive at its non-GAAP financial measures. Because of the non-standardized definitions of non-GAAP financial measures, the non-GAAP financial measures as used by Jazz Pharmaceuticals in this press release and the accompanying tables have limits in their usefulness to investors and may be calculated differently from, and therefore may not be directly comparable to, similarly titled measures used by other companies.

Cautionary Note Concerning Forward-Looking Statements
This press release contains forward-looking statements, including, but not limited to, statements related to: the Company's growth prospects and future financial and operating results, including the Company's 2026 financial guidance and the Company's expectations related thereto, including with respect to anticipated catalysts; anticipated multiple near-term pipeline catalysts that each represent significant opportunities to drive greater revenue and create long-term value; the Company's advancement of pipeline programs and the timing of development activities, regulatory activities, approvals, and submissions related thereto, including the timing of the completion of the submission of the sBLA for, and launch and approval of, zanidatamab in 1L GEA; planned or anticipated clinical trial events, including with respect to initiations, enrollment and data read-outs, and the anticipated timing thereof; and the Company's development, regulatory and commercialization strategy; the Company's expectations with respect to its products and product candidates and the potential of the Company's products and product candidates and the potential regulatory path related thereto; including zanidatamab's potential to be the HER2-targeted agent of choice in HER2+ 1L GEA, regardless of PD-L1 status, and to reshape first-line treatment for HER2+ metastatic GEA patients; the Company's capital allocation and corporate development strategy; the potential successful future development, manufacturing, regulatory and commercialization activities; the Company's ability to realize the commercial potential of its products; the Company's net product sales and goals for net product sales from new and acquired products; the Company's views and expectations relating to its patent portfolio, including with respect to expected patent protection, as well as expectations with respect to exclusivity; the Company's clinical trials confirming clinical benefit or enabling regulatory submissions, including the potential of the ongoing Phase 3 ACTION trial to confirm clinical benefit of Modeyso in recurrent H3 K27M-mutant diffuse glioma and extend to use in first-line patients; and other statements that are not historical facts. These forward-looking statements are based on the Company's current plans, objectives, estimates, expectations and intentions and inherently involve significant risks and uncertainties.

Actual results and the timing of events could differ materially from those anticipated in such forward- looking statements as a result of these risks and uncertainties, which include, without limitation, risks and uncertainties associated with: maintaining or increasing sales of, and revenue from, Xywav, Epidiolex/Epidyolex, Ziihera, Modeyso, Zepzelca and other lead marketed products; effectively launching and commercializing the Company's other products and product candidates; the successful completion of development and regulatory activities with respect to the Company's product candidates; obtaining and maintaining adequate coverage and reimbursement for the Company's products; the time-consuming and uncertain regulatory approval process, including the risk that the Company's current and/or planned regulatory submissions may not be submitted, accepted or approved by applicable regulatory authorities in a timely manner or at all, including the risk that the Company's sBLA submission for zanidatamab in 1L GEA may not be completed or, if completed, approved in a timely manner or at all; the costly and time-consuming pharmaceutical product development process and the uncertainty of clinical success, including risks related to failure or delays in successfully initiating or completing clinical trials and assessing patients; global economic, financial, and healthcare system disruptions and the current and potential future negative impacts to the Company's business operations and financial results; protecting and enhancing the Company's intellectual property rights and the Company's commercial success being dependent upon the Company obtaining, maintaining and defending intellectual property protection and exclusivity for its products and product candidates; delays or problems in the supply or manufacture of the Company's products and product candidates; complying with applicable U.S. and non-U.S. regulatory requirements, including those governing the research, development, manufacturing and distribution of controlled substances; government investigations, legal proceedings and other actions; identifying and consummating corporate development transactions, financing these transactions and successfully integrating acquired products, product candidates and businesses; the Company's ability to realize the anticipated benefits of its collaborations and license agreements with third parties; the sufficiency of the Company's cash flows and capital resources; the Company's ability to achieve targeted or expected future financial performance and results and the uncertainty of future tax, accounting and other provisions and estimates; the Company's ability to meet its projected long-term goals and objectives, in the time periods that the Company anticipates, or at all, and the inherent uncertainty and significant judgments and assumptions underlying the Company's long-term goals and objectives; fluctuations in the market price and trading volume of the Company's ordinary shares; and other risks and uncertainties affecting the Company, including those described from time to time under the caption "Risk Factors" and elsewhere in the Company's Securities and Exchange Commission filings and reports, including the Company's Annual Report on Form 10-K for the year ended December 31, 2025, and future filings and reports by the Company. Other risks and uncertainties of which the Company is not currently aware may also affect the Company's forward-looking statements and may cause actual results and the timing of events to differ materially from those anticipated.

Contacts:

Investors:
InvestorInfo@jazzpharma.com
Ireland +353 1 634 3211
U.S. +1 650 496 2717

Media:
CorporateAffairsMediaInfo@jazzpharma.com
Ireland +353 1 637 2141
U.S. +1 215 867 4948

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