Genetic Diseases, Inborn

$573 million in third quarter global net product sales CIDP global expansion on track, with decisions on approval under review in Japan, Europe, China, and Canada Management to host conference call today at 1:30 PM CET (8:30 AM ET) Regulated information - Inside information October 31, 2024 7:00AM CET Amsterdam, the Netherlands – argenx SE (Euronext & Nasdaq: ARGX), a global immunology company committed to improving the lives of people suffering from severe autoimmune diseases, today announced its third quarter 2024 financial results and provided a business update. “We delivered significant patient impact with VYVGART over the quarter, expanding our gMG footprint and delivering innovation to CIDP patients three months into launch,” said Tim Van Hauwermeiren, Chief Executive Officer of argenx. “We continued to advance our goal of reaching more gMG patients earlier in their treatment journey, supported by VYVGART’s strong safety and efficacy profile, and real-world data showing the ability to meaningfully reduce steroid use. Expanding upon our leadership in gMG, we are now paving the future in CIDP. The strength of our data, combined with execution across the team to reach key stakeholders, contributed to the initial success of our CIDP launch, with more than 300 patients on therapy at the end of the third quarter. There remains significant opportunity ahead as we work towards achieving our Vision 2030, with innovation implemented across our pipeline to deliver transformative outcomes to more patients.” Advancing ‘Vision 2030’ in Third Quarter 2024 Vision 2030 is the next phase in argenx’s long-term commitment to transform the treatment of autoimmune diseases by strengthening its leadership in FcRn biology, investing in its continuous pipeline of differentiated antibody candidates, and scaling in a disciplined way to ensure innovation remains core to the argenx mission. As a part of this vision, argenx plans to reach at least 50,000 patients globally, advance the pipeline to achieve 10 labeled indications, and bring five new molecules into Phase 3 by 2030. Reaching 50,000 Patients Globally by 2030 VYVGART® (efgartigimod alfa-fcab) is a first-in-class antibody fragment targeting FcRn and is now approved for both intravenous use and subcutaneous injection (SC) (efgartigimod alfa and hyaluronidase-qvfc) in three indications, including generalized myasthenia gravis (gMG) globally, primary immune thrombocytopenia (ITP) in Japan (IV only), and chronic inflammatory demyelinating polyneuropathy (CIDP) in the U.S. (SC only). Generated global net product revenues (inclusive of both VYVGART and VYVGART SC) of $573 million in the third quarter of 2024Multiple VYVGART regulatory submissions completed or underway for gMG, including: Swissmedic approved VYVGART for the treatment of gMG in SwitzerlandRegulatory decisions on approval expected in Australia and Saudi Arabia in 2024, and South Korea in 2025 Multiple VYVGART SC regulatory submissions under review or planned for CIDP, including: Regulatory submissions completed in Japan, Europe, and China with decisions on approval expected in 2025Regulatory submission to be completed in Canada by end of 2024 VYVGART now reimbursed in 11 countries in Europe, with new agreements in place in France, Luxembourg, and BelgiumFDA review of VYVGART SC pre-filled syringe (PFS) for gMG and CIDP ongoing with Prescription Drug User Fee Act (PDUFA) target action date of April 10, 2025 Advancing Pipeline to Achieve 10 Labeled Indications by 2030 argenx continues to demonstrate breadth and depth within its immunology pipeline, advancing multiple pipeline-in-a-product candidates. argenx is solidifying its leadership in FcRn biology, with efgartigimod currently in development in 15 indications. argenx is also advancing its first-in-class C2 inhibitor, empasiprubart, which is being evaluated in multifocal motor neuropathy (MMN), delayed graft function (DGF), dermatomyositis (DM), and CIDP. In addition, argenx is evaluating ARGX-119, a muscle-specific kinase (MuSK) agonist in both congenital myasthenic syndrome (CMS) and amyotrophic lateral sclerosis (ALS). Registrational studies ongoing of efgartigimod in thyroid eye disease (TED)Registrational studies ongoing to support label-expansion into broader MG, including ADAPT SERON in seronegative gMG and ADAPT OCULUS in ocular MGRegistrational study in primary Sjögren’s disease (SjD) on track to start by end of 2024Confirmatory study of efgartigimod in primary ITP to start by end of 2024 to enable registration in U.S.Topline data from seamless Phase 2/3 ALKIVIA study evaluating efgartigimod across three myositis subsets (immune-mediated necrotizing myopathy (IMNM), anti-synthetase syndrome (ASyS), and DM) expected by end of 2024Update on BALLAD study development plan evaluating efgartigimod in bullous pemphigoid (BP) expected by end of 2024Decision made to discontinue development of efgartigimod in membranous nephropathy (MN); proof-of concept study ongoing with efgartigimod in lupus nephritis (LN)Proof-of-concept study ongoing with efgartigimod in antibody mediated rejection (AMR), with systemic sclerosis (SSc) to start by end of 2024Registrational study of empasiprubart in MMN to start by end of 2024Additional proof-of-concept studies of empasiprubart ongoing, including VARVARA study in DGF and EMPACIFIC study in DMRegistrational study of empasiprubart in CIDP to start in 2025Ongoing Phase 1b/2a studies of ARGX-119 to assess early signal in patients with CMS and ALS Investing in Immunology Innovation Program to Support Five New Molecules in Phase 3 by 2030 argenx continues to invest in its Immunology Innovation Program (IIP) to drive long-term sustainable pipeline growth. Through the IIP, four new pipeline candidates have been nominated, including: ARGX-213, targeting FcRn and further solidifying argenx’s leadership in this new class of medicine; ARGX-121, a first-in-class molecule targeting IgA; ARGX-109, targeting IL-6, which plays an important role in inflammation, and ARGX-220, a first-in-class sweeping antibody for which the target has not yet been disclosed. Phase 1 studies of ARGX-213 and ARGX-121 expected to start in second half of 2025Investigational new drug (IND) applications for ARGX-220 and ARGX-109 on track to be filed by end of 2025 THIRD QUARTER 2024 FINANCIAL RESULTS argenx SE UNAUDITED CONDENSED CONSOLIDATED INTERIM STATEMENTS OF PROFIT OR LOSS Three Months Ended Nine Months Ended September 30 September 30(in thousands of $ except for shares and EPS) 2024 2023 2024 2023Product net sales $ 572,997 $ 329,097 $ 1,448,915 $ 816,432 Collaboration revenue 239 692 2,905 3,047 Other operating income 15,642 10,050 38,999 31,275 Total operating income $ 588,878 $ 339,839 $ 1,490,819 $ 850,754 Cost of sales $ (59,072) $ (35,999) $ (154,633) $ (78,358)Research and development expenses (235,940) (191,755) (686,195) (553,119)Selling, general and administrative expenses (277,698) (191,930) (769,392) (503,079)Loss from investment in a joint venture (1,981) (743) (5,294) (2,623)Total operating expenses $ (574,691) $ (420,427) $ (1,615,514) $ (1,137,179) Operating profit/(loss) $ 14,187 $ (80,588) $ (124,695) $ (286,425) Financial income $ 40,586 $ 30,049 $ 118,414 $ 67,078 Financial expense (676) (231) (1,760) (626)Exchange gains/(losses) 33,927 (32,509) 6,712 (23,345) Profit/(loss) for the period before taxes $ 88,024 $ (83,279) $ (1,329) $ (243,318)Income tax (expense)/benefit $ 3,386 $ 10,637 $ 60,208 $ 47,437 Profit/(loss) for the period $ 91,410 $ (72,642) $ 58,879 $ (195,881)Profit/(loss) for the period attributable to: Owners of the parent $ 91,410 $ (72,642) $ 58,879 $ (195,881)Weighted average number of shares outstanding 60,087,498 58,128,233 59,633,179 56,512,254 Basic profit/(loss) per share (in $) 1.52 (1.25) 0.99 (3.47)Diluted profit/(loss) per share (in $) 1.39 (1.25) 0.91 (3.47)Net increase in cash, cash equivalents and current financial assets compared to year-end 2023 and 2022 $ 194,523 $ 993,035 Cash and cash equivalents and current financial assets at the end of the period $ 3,374,367 $ 3,185,583 DETAILS OF THE FINANCIAL RESULTS Total operating income for the third quarter and year-to-date in 2024 was $589 million and $1,491 million, respectively, compared to $340 million and $851 million for the same periods in 2023, and mainly consists of: Product net sales of VYVGART for the three months ended and nine months ended September 30, 2024, were $573 million and $1,449 million, compared to $329 million and $816 million for the same periods in 2023.Other operating income for the third quarter and year-to-date in 2024 was $16 million and $39 million, respectively, compared to $10 million, and $31 million for the same periods in 2023. The other operating income for the three and nine months ended September 30, 2024 primarily relates to research and development tax incentives and payroll tax rebates. Total operating expenses for the third quarter and year-to-date in 2024 were $575 million and $1,616 million, respectively, compared to $420 million and $1,137 million for the same periods in 2023, and mainly consists of: Cost of sales for the third quarter and year-to-date in 2024 was $59 million and $155 million, respectively, compared to $36 million and $78 million for the same periods in 2023. The cost of sales was recognized with respect to the sale of VYVGART and VYVGART Hytrulo.Research and development expenses for the third quarter and year-to-date in 2024 were $236 million and $686 million, respectively, compared to $192 million and $553 million for the same periods in 2023. The research and development expenses mainly relate to external research and development expenses and personnel expenses incurred in the clinical development of efgartigimod in various indications and the expansion of other clinical and preclinical pipeline candidates.Selling, general and administrative expenses for the third quarter and year-to-date in 2024 were $278 million and $769 million, respectively, compared to $192 million and $503 million for the same periods in 2023. The selling, general and administrative expenses mainly relate to professional and marketing fees linked to global commercialization of VYVGART and VYVGART Hytrulo, and personnel expenses. Financial income for the third quarter and year-to-date in 2024 was $41 million and $118 million, respectively, compared to $30 million and $67 million for the same periods in 2023. The increase in financial income is mainly due to an increase in interest income on current financial assets and cash and cash equivalents. Exchange gains for the third quarter and year-to-date in 2024 were $34 million and $7 million respectively, respectively, compared to $(33) million and $(23) million of exchange losses for the same periods in 2023. Exchange gains/losses are mainly attributable to unrealized exchange rate gains or losses on the cash, cash equivalents and current financial assets position in Euro. Income tax for the third quarter and year-to-date in 2024 was $3 million and $60 million of tax benefit, respectively, compared to $11 million and $47 million of tax benefit for the same periods in 2023. Tax benefit for the nine months ended September 30, 2024 consists of $29 million of income tax expense and $89 million of deferred tax income, compared to $24 million of income tax expense and $71 million of deferred tax income for the comparable prior period. Net income for the three and nine month periods ended September 30, 2024, was $91 million and $59 million, respectively, compared to a net loss of $(73) million and $(196) million over the prior year periods. On a per weighted average share basis, the earnings per share was $0.99 for the nine months ended September 30, 2024 and a net loss per share of $(3.47) for the nine months ended September 30, 2023. Cash, cash equivalents and current financial assets totaled $3.4 billion as of September 30, 2024, compared to $3.2 billion as of December 31, 2023. The increases in cash and cash equivalents and current financial assets over the period was from financing activities due to the exercise of stock options which is offset by net cash flows used in operating and investing activities. FINANCIAL GUIDANCE With the increase in cash, cash equivalents and current financial assets in the quarter and year-to-date, the previously issued cash guidance no longer applies. The financial guidance on the combined selling, general and administrative expenses and research and development expenses remains unchanged at approximately $2 billion. EXPECTED 2024 FINANCIAL CALENDAR February 27, 2025: Full-year 2024 financial results and 4Q 2024 business update CONFERENCE CALL DETAILS The third quarter 2024 financial results and business update will be discussed during a conference call and webcast presentation today at 1:30 pm CET/8:30 am ET. A webcast of the live call and replay may be accessed on the Investors section of the argenx website at argenx.com/investors. Dial-in numbers: Please dial in 15 minutes prior to the live call. Belgium 32 800 50 201France 33 800 943355Netherlands 31 20 795 1090United Kingdom 44 800 358 0970United States 1 888 415 4250Japan 81 3 4578 9081Switzerland 41 43 210 11 32 About argenx argenx is a global immunology company committed to improving the lives of people suffering from severe autoimmune diseases. Partnering with leading academic researchers through its Immunology Innovation Program (IIP), argenx aims to translate immunology breakthroughs into a world-class portfolio of novel antibody-based medicines. argenx developed and is commercializing the first approved neonatal Fc receptor (FcRn) blocker in the U.S., Japan, Israel, the EU, the UK, China and Canada. The Company is evaluating efgartigimod in multiple serious autoimmune diseases and advancing several earlier stage experimental medicines within its therapeutic franchises. For more information, visit www.argenx.com, and follow us on LinkedIn, X/Twitter, Instagram, Facebook, and YouTube. For further information, please contact: Media: Ben Petokbpetok@argenx.com Investors:Alexandra Roy (US)aroy@argenx.com Lynn Elton (EU)lelton@argenx.com Forward-looking Statements The contents of this announcement include statements that are, or may be deemed to be, “forward-looking statements.” These forward-looking statements can be identified by the use of forward-looking terminology, including the terms “aim,” “achieve,” “advance,” “bring,” “complete,” “expect,” “initiate,” “plan,” “reach,” “start,” “support,” “to be,” or “will,” and include statements argenx makes regarding its goal to reach more gMG patients in an early-line setting; its growth opportunity; its Vision 2030 plan, including (1) transforming the treatment of autoimmune diseases by strengthening its leadership in FcRn biology, (2) investing in its continuous pipeline of differentiated antibody candidates, (3) scaling in a disciplined way to ensure innovation, and (4) reaching 50,000 patients globally with an argenx medicine, 10 labeled indications across all approved assets, and five new molecules in Phase 3 development; the advancement of anticipated clinical development, data readouts and regulatory milestones and plans, including (1) the anticipated timing of additional VYVGART regulatory decisions on approval for gMG in Australia, Saudi Arabia, and South Korea, (2) the anticipated timing of VYVGART SC regulatory submissions for CIDP, including decisions on approval in China, Japan, and Europe and an anticipated regulatory submission filing in Canada, (3) the anticipated timing of the initiation of a registrational study for efgartigimod in primary SjD, (4) the anticipated timing of a confirmatory study of efgartigimod in primary ITP, (5) the anticipated timing of topline data from Phase 2/3 ALKIVIA study evaluating efgartigimod across three myositis subsets, (6) the anticipated timing of an update on the BALLAD study development plan evaluating efgartigimod in BP, (7) the anticipated timing of proof-of-concept study data for efgartigimod in LN, (8) the anticipated timing of the initiation of a study on efgartimod in SSc, (9) the anticipated timing of the initiation of a registrational study of empasiprubart for MMN, (9) the anticipated timing of the initiation of a registrational study of empasiprubart in CIDP, (10) the anticipated timing of the initiation of Phase 1 studies of ARGX-213 and ARGX-121, (11) the anticipated timing of the filing of investigational new drug applications for ARGX-220 and ARGX-109; the advancement of empasiprubart; its 2024 selling, general and administrative expenses and research and development expenses; the anticipated timing of releases of future financial results and business updates; and its goal of translating immunology breakthroughs into a world-class portfolio of novel antibody-based medicines. By their nature, forward-looking statements involve risks and uncertainties and readers are cautioned that any such forward-looking statements are not guarantees of future performance. argenx’s actual results may differ materially from those predicted by the forward-looking statements as a result of various important factors, including the results of argenx's clinical trials; expectations regarding the inherent uncertainties associated with the development of novel drug therapies; preclinical and clinical trial and product development activities and regulatory approval requirements in products and product candidates; the acceptance of argenx's products and product candidates by patients as safe, effective and cost-effective; the impact of governmental laws and regulations on our business; disruptions caused on our reliance of third parties suppliers, service provides and manufacturing; inflation and deflation and the corresponding fluctuations in interest rates; and regional instability and conflicts. A further list and description of these risks, uncertainties and other risks can be found in argenx’s U.S. Securities and Exchange Commission (SEC) filings and reports, including in argenx’s most recent annual report on Form 20-F filed with the SEC as well as subsequent filings and reports filed by argenx with the SEC. Given these uncertainties, the reader is advised not to place any undue reliance on such forward-looking statements. These forward-looking statements speak only as of the date of publication of this document. argenx undertakes no obligation to publicly update or revise the information in this press release, including any forward-looking statements, except as may be required by law.

WVE-007 (INHBE GalNAc-siRNA for obesity) is on track to initiate a clinical trial in 1Q 2025; new preclinical data for WVE-007 demonstrate opportunities for monotherapy, for synergistic use with GLP-1s, and for maintenance to avoid rebound weight gain following cessation of GLP-1s Recent proof-of-mechanism data for WVE-006 unlocked Wave’s best-in-class RNA editing capabilities; three new wholly owned RNA editing programs targeting PNPLA3, LDLR and APOB are first-in-class approaches to address significant unmet needs in cardiometabolic diseases Wave plans to have five GalNAc-RNA editing or GalNAc-siRNA programs in the clinic by 2026 Wave’s clinically validated platform continues to lead on the improvement of intracellular delivery using novel chemistry, including PN backbone chemistry modifications CAMBRIDGE, Mass., Oct. 30, 2024 (GLOBE NEWSWIRE) -- Wave Life Sciences Ltd. (Nasdaq: WVE), a clinical-stage biotechnology company focused on unlocking the broad potential of RNA medicines to transform human health, today announced updates across its growing pipeline, which were also discussed during the company’s virtual analyst and investor Research Day (link to webcast). Updates included new preclinical data for Wave’s GalNAc-small interfering RNA (siRNA) approach for obesity, WVE-007, which is on track to initiate a clinical trial in the first quarter of 2025. Wave also introduced new, wholly owned GalNAc-RNA editing programs and demonstrated its leadership in oligonucleotide chemistry innovation. “This year, we showed through multiple positive clinical datasets that our leading RNA medicines platform is opening up new possibilities for the treatment of human disease. Next to the clinic will be our WVE-007 program, which reimagines obesity treatment with a mechanism that directly impacts fat cells – particularly visceral fat – and which could be used as monotherapy, add-on to GLP-1s, or for maintenance post-GLP-1 cessation,” said Paul Bolno, MD, MBA, President and Chief Executive Officer at Wave Life Sciences. “Additionally, we are excited to introduce three new programs for mRNA correction and upregulation to treat cardiometabolic diseases with significant unmet needs. These programs have substantial, well-defined patient populations, strong support from human genetics, efficient paths to proof-of-concept in the clinic, and offer the opportunity to meaningfully change health outcomes for millions of people. This truly is an exciting time for Wave and for patients as we unlock new biology and build our high-value and innovative pipeline.” Key Highlights from Today’s Virtual Research Day WVE-007: INHBE GalNAc-siRNA and potential best-in-class obesity therapeutic approaching the clinic WVE-007 is Wave’s GalNAc-siRNA that targets INHBE as a novel approach to treat obesity. The approach is based on human genetics, where individuals who have a protective loss-of-function mutation in the INHBE gene have a healthier cardiometabolic profile, including less unhealthy visceral fat, lower triglycerides, and lower risk of type 2 diabetes and cardiovascular disease.Silencing of INHBE in vivo directly impacts adipocytes (fat cells) and induces lipolysis (fat burning), which is different from GLP-1s’ centrally acting mechanism that involves the digestive system and central nervous system to decrease appetite.New preclinical data in diet induced obese (DIO) mice demonstrate the potential of WVE-007 to be used across the treatment continuum, including as monotherapy, as an add-on to GLP-1s, and for maintenance to prevent weight regain and weight cycling after discontinuing GLP-1s.Wave is on track to initiate a Phase 1 clinical trial for WVE-007 in adults living with overweight or obesity in the first quarter of 2025. The trial is planned to assess safety, tolerability, pharmacokinetics, and Activin E lowering (a biomarker for target engagement), as well as body composition. New GalNAc-RNA editing programs designed to optimally address high-impact cardiometabolic diseases Building on Wave’s recent achievement of the first-ever therapeutic RNA editing with WVE-006 in alpha-1 antitrypsin deficiency, the company today announced three new, wholly owned RNA editing programs that are on track for candidate selection in 2025. Like WVE-006, these programs leverage GalNAc conjugation and have efficient clinical paths to proof-of-concept. These new programs include: PNPLA3 (mRNA correction): Homozygous PNPLA3-I148M patients are at high risk for a variety of liver diseases and there are more than 9 million impacted individuals in the US and Europe. Wave’s RNA editing approach aims to achieve at least 50% correction to restore the heterozygous phenotype with low risk of liver disease, similar to the approach with WVE-006.LDLR (mRNA upregulation) and APOB (mRNA correction): High unmet needs remain among familial hypercholesterolemia (FH) patients, with approximately half of patients not reaching goal LDL-c levels with available therapies. Wave’s AIMers to upregulate LDLR and correct APOB have potential to be first-in-class treatment approaches for best-in-class effects to reach target LDL-c levels in Heterozygous FH (HeFH) patients. Combined, LDLR and APOB AIMers would address ~1 million HeFH patients in the US and Europe. LDLR upregulation also offers significant expansion opportunities in patients with statin intolerance or prior cardiovascular events (~30 million patients in the US and Europe). Chemistry innovation enhancing intracellular delivery Today, Wave shared data demonstrating how its proprietary chemistry results in marked improvements in five key areas of intracellular delivery: 1) cellular uptake; 2) endosomal release; 3) cellular residency; 4) nuclear uptake; and 5) target engagement.Wave shared how it is using PN variants and modifications to physicochemical properties to achieve best-in-class siRNA silencing and RNA editing in a variety of extrahepatic tissues.Wave also highlighted novel chemistry used in its AIMers, including proprietary N-3-uridine chemistry (N3U), which substantially enhances RNA editing efficiency. This novel chemistry was the subject of a recent Nucleic Acids Research publication. An archived webcast of the event can be accessed by visiting “Investor Events” on the investor relations section of the Wave Life Sciences website: https://ir.wavelifesciences.com/events-publications/events. About Wave Life SciencesWave Life Sciences (Nasdaq: WVE) is a biotechnology company focused on unlocking the broad potential of RNA medicines to transform human health. Wave’s RNA medicines platform, PRISM®, combines multiple modalities, chemistry innovation and deep insights in human genetics to deliver scientific breakthroughs that treat both rare and prevalent disorders. Its toolkit of RNA-targeting modalities includes editing, splicing, RNA interference and antisense silencing, providing Wave with unmatched capabilities for designing and sustainably delivering candidates that optimally address disease biology. Wave’s diversified pipeline includes clinical programs in Duchenne muscular dystrophy, Alpha-1 antitrypsin deficiency and Huntington’s disease, as well as a preclinical program in obesity. Driven by the calling to “Reimagine Possible”, Wave is leading the charge toward a world in which human potential is no longer hindered by the burden of disease. Wave is headquartered in Cambridge, MA. For more information on Wave’s science, pipeline and people, please visit www.wavelifesciences.com and follow Wave on X (formerly Twitter) and LinkedIn. Forward-Looking StatementsThis press release contains forward-looking statements concerning our goals, beliefs, expectations, strategies, objectives and plans, and other statements that are not necessarily based on historical facts, including statements regarding the following, among others: the anticipated initiation, site activation, patient recruitment, patient enrollment, dosing, generation and reporting of data and completion of our clinical trials, including interactions with regulators and any potential registration based on these data, and the timing and announcement of such events; regulatory submissions and timing for regulatory feedback; the protocol, design and endpoints of our clinical trials; the future performance and results of our programs in clinical trials; our expectations with respect to how our clinical data successes to date may predict success for our future therapeutic candidates, future clinical data readouts and further validate of our platform; ongoing and future preclinical activities and programs; the potential of our preclinical data to predict the behavior of our compounds in humans; our identification and expected timing of future product candidates and their therapeutic potential; the anticipated benefits of our therapeutic candidates and pipeline compared to our competitors; patient population estimates related to our therapeutic candidates and the potential addressable market that our therapeutics may address; our ability to design compounds using various modalities and the anticipated benefits of that approach; the breadth and versatility of our PRISM drug discovery and development platform; the expected benefits of our stereopure oligonucleotides compared with stereorandom oligonucleotides; the potential benefits of our RNA editing capability, including our AIMers, compared to others; the benefits of RNA medicines generally; the potential for certain of our programs to be best-in-class or first-in-class; the potential benefits that our “edit-verse” may provide us, including identifying new RNA editing targets; our ability to translate genetic insights into high impact medicines; the status and progress of our programs relative to potential competitors; the progress and potential benefits of our collaborations; ;and the anticipated duration of our cash runway and our ability to fund future operations. The words “may,” “will,” “could,” “would,” “should,” “expect,” “plan,” “anticipate,” “intend,” “believe,” “estimate,” “predict,” “project,” “potential,” “continue,” “target” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Any forward-looking statements in this press release are based on management's current expectations and beliefs and are subject to a number of risks, uncertainties and important factors that may cause actual results to differ materially from those indicated by these forward-looking statements as a result of these risks, uncertainties and important factors, including, without limitation, the risks and uncertainties described in the section entitled “Risk Factors” in Wave’s most recent Annual Report on Form 10-K filed with the Securities and Exchange Commission (SEC), as amended, and in other filings Wave makes with the SEC from time to time. Wave undertakes no obligation to update the information contained in this press release to reflect subsequently occurring events or circumstances. Investor Contact:Kate Rausch+1 617-949-4827krausch@wavelifesci.com Media Contact:Alicia Suter+1 617-949-4817asuter@wavelifesci.com

-- Strong Cash Position of $306 Million; 9th Consecutive Quarter of Positive or Neutral Cash Balance ---- Total Net Revenue of $42 Million Represents Continued Source of Cash from the U.S., RoW Partnerships and Early Phases of European Launches ---- Positive European Momentum Continues with Progress from Pricing & Reimbursement Efforts and Incremental Revenue Growth Driven Primarily by Spain and the UK ---- Company to Host Virtual Analyst & Investor Day November 14 ---- Company Remains Committed to Maintaining Public Listing – DUBLIN and BRIDGEWATER, N.J., Oct. 30, 2024 (GLOBE NEWSWIRE) -- Amarin Corporation plc (NASDAQ: AMRN), today reported financial results for the third quarter ended September 30, 2024, and provided a business update. At Amarin, the company’s product -- VASCEPA®/VAZKEPA® (icosapent ethyl) -- has significant growth and value potential globally. This continues to be validated by progress around the world. During the quarter, VAZKEPA sales grew 19% sequentially in Europe, driven primarily by Spain and the UK. Notably, in Italy, the Company has taken additional steps with the Italian authorities and hopes to be in a position to share news soon. In the U.S., the Company has maintained +50% share of the IPE market through the third quarter. As a result, the U.S. business has continued to generate significant cash representing +$300M consistently over the last nine quarters, all in the face of ongoing generic competition. Additionally, the Company continues to assess the potential optimal timing for an authorized generic launch. Commenting on the Company and its third quarter results, Aaron Berg, Amarin’s President and CEO stated, “While we and our global partners continue to execute on our multipronged global strategy focused on getting VASCEPA/VAZKEPA into the hands of as many patients as possible, the senior leadership team and I, as well as the Board of Directors, remain committed to evaluating all opportunities to maximize the value and impact of this highly impactful product. To that end, we look forward to highlighting the global opportunity for VASCEPA/VAZKEPA and to hear directly from both prescribers and select partners from around the world on the impact of VASCEPA/VAZKEPA during our upcoming virtual Analyst and Investor Day on November 14.” Continuing, Berg said, “We remain fully committed to our public listing – it is very important for us as well as our shareholders. In addition to continuing to drive the business, there are a number of paths available to us to resolve the issue.” Third Quarter Operational Highlights Amarin continued to advance pricing and reimbursement efforts across additional European and Rest of World (RoW) markets, including: In Italy, realized further progress with the pricing and reimbursement authorities, and the Company hopes to be able to share further updates soon.In Portugal, secured national reimbursement for VAZKEPA.In Australia, in collaboration with our partner CSL Seqirus, secured national reimbursement for VAZKEPA in Australia, where CSL is now launching the product. Investigators presented new subgroup data from the landmark REDUCE-IT® cardiovascular outcomes trial with VASCEPA/VAZKEPA, as well as abstracts showcasing the mechanistic activity of eicosapentaenoic acid (EPA) at the European Society of Cardiology (ESC) Congress.Investigators presented new research on the clinical impact of VASCEPA/VAZKEPA in patients with diabetes and high cardiovascular risk and the anti-Lp(a) oxidation mechanistic effects of eicosapentaenoic acid (EPA) at the 60th Annual European Association for the Study of Diabetes (EASD) Meeting. Financial Update Financial Highlights ($ in millions)Three months ended September 30, 2024Three months ended September 30, 2023% ChangeTotal Net Revenue$42.3$66.1-36%Operating Expenses1$41.4$50.5-18%Cash$305.7$320.7-5% 1 – Excludes restructuring expense of $0.7 million in the 3 months ended September 30, 2023 Total net revenue for the three months ended September 30, 2024 was $42.3 million, compared to $66.1 million in the corresponding period of 2023, a decrease of 36%. Net product revenue for the three months ended September 30, 2024 was $41.9 million, compared to $64.9 million in the corresponding period of 2023, a decrease of 36%. This decrease was driven primarily by an impact in net selling price due to US generic competition as well as a decrease in volume primarily related to CVS moving from an exclusive account to no longer covering VASCEPA. U.S. net product revenue was $30.6 million for the three months ended September 30, 2024 compared to $62.4 million in the corresponding period of 2023. For the three months ended September 30, 2024, European net product revenue was $4.3 million and Rest of World (RoW) net product revenue was $6.9 million, compared to $0.8 million and $1.8 million, respectively in the corresponding period in 2023. Cost of goods sold for the three months ended September 30, 2024 was $26.0 million, compared to $36.2 million in the corresponding period of 2023. Overall gross margin on net product revenue for the three months ended September 30, 2024 and 2023 was 38% and 44%, respectively. Excluding the inventory restructuring charge in Q3 2023 gross margin was 64%. Selling, general and administrative expenses for the three months ended September 30, 2024 was $36.9 million, compared to $45.5 million in the corresponding period of 2023. This decrease was primarily due to cost optimization efforts across the business. Research and development expenses for the three months ended September 30, 2024 were $4.5 million, compared to $5.1 million in the corresponding period of 2023. Under U.S. GAAP, the Company reported net loss of $25.1 million for the three months ended September 30, 2024, or basic and diluted loss per share of $0.06. This net loss includes $4.7 million in non-cash stock-based compensation. For the three months ended September 30, 2023, the Company reported net loss of $19.3 million, or basic and diluted loss per share of $0.05. This net loss included $4.6 million in non-cash stock-based compensation expense. Excluding non-cash stock-based compensation expense and restructuring expense, non-GAAP adjusted net loss was $20.4 million for the three months ended September 30, 2024 or non-GAAP adjusted basic and diluted loss per share of $0.05, compared with non-GAAP adjusted net loss of $1.3 million for the three months ended September 30, 2023 or non-GAAP adjusted basic and diluted loss per share of $0.00. As of September 30, 2024, the Company reported aggregate cash and investments of $305.7 million, which includes receipt of the $15 million EDDING CVRR milestone payment in the quarter, compared to aggregate cash and investment of $306.7 million as of June 30, 2024. 2024 Financial Outlook The Company is committed to executing against the significant opportunity in Europe. The Company is focused on maintaining market share in the U.S. and maximizing cash generation from the attractive and growing Rest of World (RoW) income stream. The Company continues to make progress on reducing operating expenses and managing its cash position, including $10 million of operating expense savings in the third quarter of 2024 compared to the third quarter of 2023. The Company reaffirms its belief that current cash and investments and other assets are adequate to support continuing operations for the foreseeable future. Virtual Analyst & Investor Day 2024 – November 14 Amarin will host a virtual analyst and investor day on Thursday, November 14, 2024, from 8:00 AM EST to 10:00 AM EST. The event will be hosted by members of the Amarin senior management team and will focus on updating the investment community on the current state of the VASCEPA/VAZKEPA franchise, with particular attention given to discussions on the dynamics of key geographies that represent the future value of the franchise, including Europe. In addition, a dedicated question and answer session will be held during which the Amarin senior management team will entertain questions submitted in advance to investor.relations@amarincorp.com. As a virtual event, the program will be webcast and archived for future reference and will be open to all participants; participation will require a simple registration step before joining, which will be available through the Company website prior to this event. Throughout the event, there will be no live interaction with audience participants. Q3 2024 Earnings Conference Call and Webcast Information Amarin will host a conference call on October 30, 2024, at 5:00 p.m. ET to discuss this information. The conference call can be accessed on the investor relations section of the company's website at www.amarincorp.com, or via telephone by dialing 888-506-0062 within the United States, 973-528-0011 from outside the United States, and referencing conference ID 732244. A replay of the call will be made available for a period of two weeks following the conference call. To listen to a replay of the call, dial 877-481-4010 from within the United States and 919-882-2331 from outside of the United States, and reference conference ID 51361. A replay of the call will also be available through the company's website shortly after the call. About AmarinAmarin is an innovative pharmaceutical company leading a new paradigm in cardiovascular disease management. We are committed to increasing the scientific understanding of the cardiovascular risk that persists beyond traditional therapies and advancing the treatment of that risk for patients worldwide. Amarin has offices in Bridgewater, New Jersey in the United States, Dublin in Ireland, Zug in Switzerland, and other countries in Europe as well as commercial partners and suppliers around the world. About VASCEPA®/VAZKEPA® (icosapent ethyl) Capsules VASCEPA (icosapent ethyl) capsules are the first prescription treatment approved by the U.S. Food and Drug Administration (FDA) comprised solely of the active ingredient, icosapent ethyl (IPE), a unique form of eicosapentaenoic acid. VASCEPA was launched in the United States in January 2020 as the first drug approved by the U.S. FDA for the treatment of high-risk patients with persistent cardiovascular risk despite being on statin therapy. VASCEPA was initially launched in the United States in 2013 based on the drug’s initial FDA approved indication for use as an adjunct therapy to diet to reduce triglyceride levels in adult patients with severe (≥500 mg/dL) hypertriglyceridemia. Since launch, VASCEPA has been prescribed more than twenty-five million times. VASCEPA is covered by most major medical insurance plans. In addition to the United States, VASCEPA is approved and sold in Canada, China, Australia, Lebanon, the United Arab Emirates, Kuwait, Saudi Arabia, Qatar and Bahrain. In Europe, in March 2021 marketing authorization was granted via a centralized procedure for icosapent ethyl in the European Union for the reduction of risk of cardiovascular events in patients at high cardiovascular risk, under the brand name VAZKEPA. VAZKEPA (icosapent ethyl) is currently sold in Europe in Sweden, Finland, Austria, the UK (including England, Wales & Scotland and Northern Ireland), Spain, Portugal, Greece and the Netherlands. In April 2021 marketing authorization for VAZKEPA (icosapent ethyl) was granted in Great Britain (applying to England, Scotland, Wales and Northern Ireland). United States Indications and Limitation of Use VASCEPA is indicated: As an adjunct to maximally tolerated statin therapy to reduce the risk of myocardial infarction, stroke, coronary revascularization and unstable angina requiring hospitalization in adult patients with elevated triglyceride (TG) levels (≥ 150 mg/dL) and established cardiovascular disease or diabetes mellitus and two or more additional risk factors for cardiovascular disease. As an adjunct to diet to reduce TG levels in adult patients with severe (≥ 500 mg/dL) hypertriglyceridemia. The effect of VASCEPA on the risk for pancreatitis in patients with severe hypertriglyceridemia has not been determined. Important Safety Information VASCEPA is contraindicated in patients with known hypersensitivity (e.g., anaphylactic reaction) to VASCEPA or any of its components. VASCEPA was associated with an increased risk (3% vs 2%) of atrial fibrillation or atrial flutter requiring hospitalization in a double-blind, placebo-controlled trial. The incidence of atrial fibrillation was greater in patients with a previous history of atrial fibrillation or atrial flutter. It is not known whether patients with allergies to fish and/or shellfish are at an increased risk of an allergic reaction to VASCEPA. Patients with such allergies should discontinue VASCEPA if any reactions occur. VASCEPA was associated with an increased risk (12% vs 10%) of bleeding in a double-blind, placebo-controlled trial. The incidence of bleeding was greater in patients receiving concomitant antithrombotic medications, such as aspirin, clopidogrel or warfarin. Common adverse reactions in the cardiovascular outcomes trial (incidence ≥3% and ≥1% more frequent than placebo): musculoskeletal pain (4% vs 3%), peripheral edema (7% vs 5%), constipation (5% vs 4%), gout (4% vs 3%), and atrial fibrillation (5% vs 4%). Common adverse reactions in the hypertriglyceridemia trials (incidence >1% more frequent than placebo): arthralgia (2% vs 1%) and oropharyngeal pain (1% vs 0.3%). Adverse events may be reported by calling 1-855-VASCEPA or the FDA at 1-800-FDA-1088. Patients receiving VASCEPA and concomitant anticoagulants and/or anti-platelet agents should be monitored for bleeding. FULL U.S. FDA-APPROVED VASCEPA PRESCRIBING INFORMATION CAN BE FOUND AT WWW.VASCEPA.COM. Europe For further information about the Summary of Product Characteristics (SmPC) for VAZKEPA® in Europe, please visit: https://www.medicines.org.uk/emc/product/12964/smpc. Globally, prescribing information varies; refer to the individual country product label for complete information. Use of Non-GAAP Adjusted Financial Information Included in this press release are non-GAAP adjusted financial information as defined by U.S. Securities and Exchange Commission Regulation G. The GAAP financial measure most directly comparable to each non-GAAP adjusted financial measure used or discussed, and a reconciliation of the differences between each non-GAAP adjusted financial measure and the comparable GAAP financial measure, is included in this press release after the condensed consolidated financial statements. Non-GAAP adjusted net (loss) income was derived by taking GAAP net loss and adjusting it for non-cash stock-based compensation expense, restructuring expense and other one-time expenses. Management uses these non-GAAP adjusted financial measures for internal reporting and forecasting purposes, when publicly providing its business outlook, to evaluate the company’s performance and to evaluate and compensate the company’s executives. The company has provided these non-GAAP financial measures in addition to GAAP financial results because it believes that these non-GAAP adjusted financial measures provide investors with a better understanding of the company’s historical results from its core business operations. While management believes that these non-GAAP adjusted financial measures provide useful supplemental information to investors regarding the underlying performance of the company’s business operations, investors are reminded to consider these non-GAAP measures in addition to, and not as a substitute for, financial performance measures prepared in accordance with GAAP. Non-GAAP measures have limitations in that they do not reflect all of the amounts associated with the company’s results of operations as determined in accordance with GAAP. In addition, it should be noted that these non-GAAP financial measures may be different from non-GAAP measures used by other companies, and management may utilize other measures to illustrate performance in the future. Forward-Looking StatementsThis press release contains forward-looking statements which are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, including beliefs about Amarin’s key achievements in 2023 and the potential impact and outlook for achievements in 2024 and beyond; Amarin’s 2024 financial outlook and cash position; Amarin’s overall efforts to expand access and reimbursement to VAZKEPA across global markets; and the overall potential and future success of VASCEPA/VAZKEPA and Amarin generally. These forward-looking statements are not promises or guarantees and involve substantial risks and uncertainties. A further list and description of these risks, uncertainties and other risks associated with an investment in Amarin can be found in Amarin's filings with the U.S. Securities and Exchange Commission, including Amarin’s quarterly report on Form 10-Q for the period ending September 30, 2024 and annual report on Form 10-K for the full year ended 2023. Existing and prospective investors are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date they are made. Amarin undertakes no obligation to update or revise the information contained in its forward-looking statements, whether as a result of new information, future events or circumstances or otherwise. Amarin’s forward-looking statements do not reflect the potential impact of significant transactions the company may enter into, such as mergers, acquisitions, dispositions, joint ventures or any material agreements that Amarin may enter into, amend or terminate. Availability of Other Information About AmarinInvestors and others should note that Amarin communicates with its investors and the public using the company website (www.amarincorp.com), the investor relations website (www.amarincorp.com/investor-relations), including but not limited to investor presentations and investor FAQs, U.S. Securities and Exchange Commission filings, press releases, public conference calls and webcasts. The information that Amarin posts on these channels and websites could be deemed to be material information. As a result, Amarin encourages investors, the media, and others interested in Amarin to review the information that is posted on these channels, including the investor relations website, on a regular basis. This list of channels may be updated from time to time on Amarin’s investor relations website and may include social media channels. The contents of Amarin’s website or these channels, or any other website that may be accessed from its website or these channels, shall not be deemed incorporated by reference in any filing under the Securities Act of 1933. Amarin Contact InformationInvestor & Media Inquiries: Mark Marmur Amarin Corporation plc PR@amarincorp.com -Tables to Follow- CONSOLIDATED BALANCE SHEET DATA (U.S. GAAP) Unaudited September 30, 2024 December 31, 2023 (in thousands) ASSETS Current Assets: Cash and cash equivalents $156,944 $199,252 Restricted cash 526 525 Short-term investments 148,788 121,407 Accounts receivable, net 112,642 133,563 Inventory 224,000 258,616 Prepaid and other current assets 7,316 11,618 Total current assets 650,216 724,981 Property, plant and equipment, net 24 114 Long-term inventory 74,023 77,615 Operating lease right-of-use asset 7,984 8,310 Other long-term assets 1,250 1,360 Intangible asset, net 17,118 19,304 TOTAL ASSETS $750,615 $831,684 LIABILITIES AND STOCKHOLDERS’ EQUITY Current Liabilities: Accounts payable $40,507 $52,762 Accrued expenses and other current liabilities 161,047 204,174 Current deferred revenue — 2,341 Total current liabilities 201,554 259,277 Long-Term Liabilities: Long-term deferred revenue — 2,509 Long-term operating lease liability 8,215 8,737 Other long-term liabilities 9,471 9,064 Total liabilities 219,240 279,587 Stockholders’ Equity: Common stock 305,202 302,756 Additional paid-in capital 1,911,445 1,899,456 Treasury stock (65,344) (63,752) Accumulated deficit (1,619,928) (1,586,363) Total stockholders’ equity 531,375 552,097 TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY $750,615 $831,684 CONSOLIDATED STATEMENTS OF OPERATIONS DATA (U.S. GAAP) Unaudited Three months ended September 30, Nine months ended September 30, (in thousands, except per share amounts) (in thousands, except per share amounts) 2024 2023 2024 2023 Product revenue, net$41,852 $64,903 $144,522 $214,744 Licensing and royalty revenue 446 1,153 21,786 17,454 Total revenue, net 42,298 66,056 166,308 232,198 Less: Cost of goods sold 26,022 23,560 75,359 72,553 Less: Cost of goods sold - restructuring inventory — 12,674 — 39,228 Gross margin 16,276 29,822 90,949 120,417 Operating expenses: Selling, general and administrative (1) 36,904 45,457 115,340 155,997 Research and development (1) 4,540 5,105 14,884 16,428 Restructuring — 711 — 10,743 Total operating expenses 41,444 51,273 130,224 183,168 Operating loss (25,168) (21,451) (39,275) (62,751) Interest income, net 3,374 3,216 10,028 8,438 Other income (expense), net 265 (575) 1,954 3,092 Loss from operations before taxes (21,529) (18,810) (27,293) (51,221) Provision for income taxes (3,605) (501) (6,272) (2,110) Net loss$(25,134) $(19,311) $(33,565) $(53,331) Loss per share: Basic$(0.06) $(0.05) $(0.08) $(0.13) Diluted$(0.06) $(0.05) $(0.08) $(0.13) Weighted average shares: Basic 411,150 408,417 410,786 407,489 Diluted 411,150 408,417 410,786 407,489 (1) - Excluding non-cash stock-based compensation, selling, general and administrative expenses were $33,075 and $41,807 for the three months ended September 30, 2024 and 2023, respectively, and research and development expenses were $3,671 and $4,113, respectively, for the same periods. RECONCILIATION OF NON-GAAP NET INCOME (LOSS) Unaudited Three months ended September 30, Nine months ended September 30, (in thousands, except per share amounts) (in thousands, except per share amounts) 2024 2023 2024 2023 Net loss for EPS1 - GAAP (25,134) (19,311) (33,565) (53,331) Stock-based compensation expense 4,698 4,643 14,303 12,034 Restructuring inventory — 12,674 — 39,228 Restructuring expense — 711 — 10,743 Advisor fees — — — 6,270 Net (loss) income for EPS1 - non-GAAP $(20,436) $(1,283) $(19,262) $14,944 1basic and diluted (Loss) earnings per share: Basic - non-GAAP $(0.05) $(0.00) $(0.05) $0.04 Diluted - non-GAAP $(0.05) $(0.00) $(0.05) $0.04 Weighted average shares: Basic 411,150 408,417 410,786 407,489 Diluted 411,150 408,417 410,786 417,117