Sleep Paralysis

77% of narcolepsy type 1 patients continue to experience cataplexy attacks despite being treated 64% of narcolepsy type 1 patients continue to experience excessive daytime sleepiness, as assessed by the Epworth Sleepiness Scale (ESS), despite being treated 74% of treated narcolepsy type 1 patients exhibit cognitive impairment, as assessed by the British Columbia Cognitive Complaints Inventory (BC-CCI) Depression and anxiety were experienced by 45% and 57% of narcolepsy type 1 patients, respectively NEW YORK, March 25, 2024 (GLOBE NEWSWIRE) -- Axsome Therapeutics, Inc. (NASDAQ: AXSM), a biopharmaceutical company developing and delivering novel therapies for the management of central nervous system (CNS) disorders, today announced topline results from the CRESCENDO (Characterizing Patient Perspectives on Unmet Needs in Narcolepsy) survey of patients with narcolepsy type 1 (NT1, i.e., narcolepsy with cataplexy) receiving treatment, demonstrating high rates of persistent symptoms and significant patient burden, despite being on current treatments. CRESCENDO was conducted in partnership with Narcolepsy Network, a national non-profit patient support organization for people with narcolepsy, idiopathic hypersomnia, and related sleep disorders. The CRESCENDO survey included 203 adult patients diagnosed with NT1, who collectively have more than 2600 years of lived experience with the sleep disorder, to understand their experience and journey, to measure disease symptoms including cognitive impairment while on treatment, and to assess burden of illness, comorbidities, and unmet needs and challenges patients face. To quantify key elements of the narcolepsy patient experience, CRESCENDO utilized patient reported measures, and validated scales including the Epworth Sleepiness Scale (ESS) to assess excessive daytime sleepiness (EDS), and the British Columbia Cognitive Complaints Inventory (BC-CCI) to assess cognitive function. All patients taking part in the survey were currently undergoing treatment for NT1. The most common treatments were wake promoting agents (about 53% of surveyed patients), oxybates (47%), and stimulants (42%). “Narcolepsy is a debilitating and incurable orphan neurologic disorder. Its most troublesome symptom is daytime sleepiness, which can impair social and occupational functioning and can cause potentially dangerous sleep attacks. Its other symptoms include cataplexy, episodes in which strong emotion causes a sudden loss of muscle control, sleep paralysis, sleep-related hallucinations, and disrupted nighttime sleep,” said Dr. Karl Doghramji, Professor of Psychiatry, Neurology and Medicine, and Medical Director of the Jefferson Sleep Disorders Center at Thomas Jefferson University in Philadelphia, PA. “Unfortunately, narcolepsy is underrecognized and underdiagnosed by the medical community and its burden of illness is not widely understood or appreciated, which is why the CRESCENDO survey is such an important step forward in raising awareness of narcolepsy and its impact on patient lives, and in giving voice to the thousands of individuals living with this debilitating disorder.” Despite receiving treatment, the majority of narcolepsy patients continued to experience symptoms. Cataplexy was reported by 77% of patients while on their current treatment regimen. EDS, assessed using the ESS (scores > 10), was observed in 64% of patients despite receiving current treatments. Cognitive impairment, assessed using the BC-CCI (scores ≥5), was observed in 74% of patients. Depression and anxiety were experienced by about 45% and 57% of patients respectively. Axsome plans to present the detailed results of the CRESCENDO survey at upcoming scientific meetings. Key Topline Findings from the CRESCENDO Survey Patient Demographics Survey respondents consisted of a total of 203 adults, aged 18-82 years (mean 41 years) with a diagnosis of narcolepsy Type 1, all of whom had experience with FDA-approved treatments for their narcolepsy. Current Treatments and Comorbidities Subjects were receiving pharmacotherapy for narcolepsy.The most common narcolepsy-specific treatments were wake promoting agents (53% of surveyed patients), oxybates (47%), and stimulants (42%).37% of participants were diagnosed with depression, of which 80% were taking medication to manage their depression.37% of participants were diagnosed with anxiety, of which 72% were taking medication to manage their anxiety. Prevalence of Narcolepsy Symptoms While on Treatment Cataplexy was reported by 77% of patients while on their current treatment regimen.EDS, assessed using the ESS (scores > 10), was observed in 64% of patients despite receiving current treatments.Cognitive impairment, assessed using the BC-CCI (scores ≥5), was observed in 74% of patients on treatment.68% rated their ability to concentrate as poor, very poor, or average. Cataplexy Impacts on Daily Life 65% of participants currently experiencing cataplexy reported that cataplexy burdens their professional life (e.g. career, school), despite treatment60% of participants currently experiencing cataplexy reported that cataplexy burdens their social life, despite treatment.50% of patients currently experiencing cataplexy reported that cataplexy burdens their day-to-day life, despite treatment64% and 68% of patients experiencing cataplexy reported being embarrassed by falling down and slurred speech, respectively, despite treatment. Time of Conduct The survey was conducted between October-December 2023. About Narcolepsy Narcolepsy is a serious and debilitating orphan neurological condition that causes dysregulation of the sleep-wake cycle and is characterized clinically by excessive daytime sleepiness, cataplexy, hypnagogic hallucinations, sleep paralysis, and disrupted nocturnal sleep. A majority of narcolepsy patients report cognitive impairment related to their condition. Cataplexy is seen in an estimated 70% of narcolepsy patients and is a sudden reduction or loss of muscle tone while a patient is awake, typically triggered by strong emotions such as laughter, fear, anger, stress, or excitement. Narcolepsy interferes with cognitive, psychological, and social functioning, increases the risk of work- and driving-related accidents, and is associated with a 1.5-fold higher mortality rate. About Narcolepsy Network Narcolepsy Network is a 501(c)(3), member-led community organization based in the United States that works to educate, empower, and connect people impacted by narcolepsy, idiopathic hypersomnia and related sleep disorders. Through the lens of advocacy, education, awareness, and support, Narcolepsy Network delivers programs and resources by sharing clinical updates and research, hosting educational webinars, facilitating support groups, and providing advocacy opportunities. Narcolepsy Network works with industry to ensure a neutral and unbiased approach to engage with the patient community. - Neutrality Statement (narcolepsynetwork.org) About Axsome Therapeutics, Inc. Axsome Therapeutics, Inc. is a biopharmaceutical company developing and delivering novel therapies for central nervous system (CNS) conditions that have limited treatment options. Through development of therapeutic options with novel mechanisms of action, we are transforming the approach to treating CNS conditions. At Axsome, we are committed to developing products that meaningfully improve the lives of patients and provide new therapeutic options for physicians. For more information, please visit the Company’s website at axsome.com. The Company may occasionally disseminate material, nonpublic information on the company website. Forward Looking Statements Certain matters discussed in this press release are “forward-looking statements”. We may, in some cases, use terms such as “predicts,” “believes,” “potential,” “continue,” “estimates,” “anticipates,” “expects,” “plans,” “intends,” “may,” “could,” “might,” “will,” “should” or other words that convey uncertainty of future events or outcomes to identify these forward-looking statements. In particular, the Company’s statements regarding trends and potential future results are examples of such forward-looking statements. The forward-looking statements include risks and uncertainties, including, but not limited to, the continued commercial success of our Sunosi® and Auvelity® products and the success of our efforts to obtain any additional indication(s) with respect to solriamfetol and/or AXS-05; the success, timing and cost of our ongoing clinical trials and anticipated clinical trials for our current product candidates, including statements regarding the timing of initiation, pace of enrollment and completion of the trials (including our ability to fully fund our disclosed clinical trials, which assumes no material changes to our currently projected revenues or expenses), futility analyses and receipt of interim results, which are not necessarily indicative of the final results of our ongoing clinical trials, and/or data readouts, and the number or type of studies or nature of results necessary to support the filing of a new drug application (“NDA”) for any of our current product candidates; our ability to fund additional clinical trials to continue the advancement of our product candidates; the timing of and our ability to obtain and maintain U.S. Food and Drug Administration (“FDA”) or other regulatory authority approval of, or other action with respect to, our product candidates, including statements regarding the timing of any NDA submission; whether issues identified by FDA in the complete response letter may impact the potential approvability of the Company’s NDA for AXS-07 for the acute treatment of migraine in adults with or without aura, pursuant to our special protocol assessment for the MOMENTUM clinical trial; the Company’s ability to successfully defend its intellectual property or obtain the necessary licenses at a cost acceptable to the Company, if at all; the successful implementation of the Company’s research and development programs and collaborations; the success of the Company’s license agreements; the acceptance by the market of the Company’s products and product candidates, if approved; the Company’s anticipated capital requirements, including the amount of capital required for the continued commercialization of Sunosi and Auvelity and for the Company’s commercial launch of its other product candidates, if approved, and the potential impact on the Company’s anticipated cash runway; unforeseen circumstances or other disruptions to normal business operations arising from or related to geo-political conflicts or a global pandemic and other factors, including general economic conditions and regulatory developments, not within the Company’s control. The factors discussed herein could cause actual results and developments to be materially different from those expressed in or implied by such statements. The forward-looking statements are made only as of the date of this press release and the Company undertakes no obligation to publicly update such forward-looking statements to reflect subsequent events or circumstance. Axsome Contacts: Investors:Mark JacobsonChief Operating OfficerAxsome Therapeutics, Inc.One World Trade Center, 22nd FloorNew York, NY 10007Tel: 212-332-3243Email: mjacobson@axsome.com www.axsome.com Media:Darren OplandDirector, Corporate CommunicationsAxsome Therapeutics, Inc.One World Trade Center, 22nd FloorNew York, NY 10007Tel: 929-837-1065Email: dopland@axsome.com www.axsome.com

AXS-12 statistically significantly reduced cataplexy attacks compared to placebo (p=0.018, primary endpoint) AXS-12 achieved statistically significant remission of cataplexy compared to placebo (p=0.008) AXS-12 statistically significantly reduced excessive daytime sleepiness (EDS) severity compared to placebo (p=0.027, CGI-S for EDS) AXS-12 statistically significantly improved concentration and memory compared to placebo (p=0.004, Cognitive Function items of FOSQ-10) AXS-12 statistically significantly reduced overall severity of narcolepsy compared to placebo (p=0.007, CGI-S for narcolepsy) AXS-12 statistically significantly improved overall function and quality of life compared to placebo (p=0.005, FOSQ-10 total score) Company to host conference call and webcast today at 8:00 AM ET NEW YORK, March 25, 2024 (GLOBE NEWSWIRE) -- Axsome Therapeutics, Inc. (NASDAQ: AXSM), a biopharmaceutical company developing and delivering novel therapies for the management of central nervous system (CNS) disorders, today announced that AXS-12 (reboxetine), a highly selective and potent norepinephrine reuptake inhibitor and cortical dopamine modulator, achieved the primary endpoint and significantly reduced the frequency of cataplexy attacks as compared to placebo in patients with narcolepsy in the SYMPHONY Phase 3 trial. AXS-12 also reduced excessive daytime sleepiness (EDS) severity, improved cognitive function, and reduced overall narcolepsy severity as compared to placebo. SYMPHONY was a Phase 3 multicenter, randomized, double-blind, placebo-controlled trial in which 90 patients with a diagnosis of narcolepsy with cataplexy were randomized to treatment with AXS-12 or placebo for 5 weeks. “AXS-12 is a novel therapeutic approach to the treatment of narcolepsy as evidenced by the strong clinical results generated from the Phase 3 SYMPHONY trial, including a rapid and significant reduction in cataplexy events compared to placebo,” commented Dr. Michael Thorpy, Director of the Sleep-Wake Disorders Center at the Montefiore Medical Center and Professor of Neurology at Albert Einstein College of Medicine. “Despite the existence of multiple approved narcolepsy treatments, significant unmet need still exists given the high rates of persistent symptoms reported by patients. Based on the concurrent improvements observed on cataplexy, severity of excessive daytime sleepiness, cognition and overall function, I believe AXS-12 represents a meaningful enhancement to the treatment armamentarium for narcolepsy patients and clinicians and will be a welcome treatment option in our fight against the devastating impact of narcolepsy on patients and their loved ones.” AXS-12 met the primary endpoint by demonstrating a substantial and statistically significant reduction from baseline in weekly cataplexy attacks compared to placebo at Week 5, with reductions of 83% for AXS-12 and 66% for placebo (p=0.018). AXS-12 rapidly reduced weekly cataplexy attacks, demonstrating at Week 1 a reduction of 56% compared to a reduction of 31% for placebo (p=0.007). AXS-12 induced remission of cataplexy and increased cataplexy-free days compared to placebo. Remission of cataplexy, defined as a 100% reduction from baseline, was achieved at Week 5 by 33% of AXS-12 treated patients compared to 9.5% of placebo patients (p=0.008). Achievement of remission was rapid, being experienced at Week 2 by 24% of AXS-12 treated patients compared to 4.5% of placebo patients (p=0.008). AXS-12 increased the percentage of cataplexy-free days per week, defined as days with zero cataplexy attacks, to 84.5% at Week 5 compared to 22.6% for placebo (p=0.014). AXS-12 significantly reduced excessive daytime sleepiness (EDS) severity, assessed by the Clinician Global Impression of Severity (CGI-S) scale for EDS, compared to placebo at Week 5 with mean reductions of 1.8 points for AXS-12 compared to 0.9 points for placebo (p=0.027). Rapid improvement on the CGI-S for EDS was seen as early as Week 1 compared to placebo (p=0.006). AXS-12 concurrently improved EDS and cataplexy as compared to placebo. Concurrent EDS and cataplexy response was achieved at Week 5 by 57% of patients treated with AXS-12 compared to 33% of placebo patients (p=0.029). Concurrent EDS and cataplexy response was defined as a ≥30% reduction in inadvertent naps (EDS response), and a ≥50% reduction in cataplexy attacks (cataplexy response). A decrease in the number of inadvertent naps was experienced by 54% of AXS-12 patients at Week 5 compared to 28% of placebo patients (p=0.016), assessed by the Narcolepsy Symptom Assessment Questionnaire (NSAQ). Improvement on the Epworth Sleepiness Scale (ESS) was numerically greater for AXS-12 than for placebo, with mean reductions from baseline of 4.7 points for AXS-12 compared to 3.4 points for placebo. A ≥3-point improvement from baseline on the ESS was achieved by 60% of AXS-12 patients who had a cataplexy response. AXS-12 significantly improved concentration and memory as measured by the Cognitive Function Items of the Functional Outcomes of Sleep Questionnaire (FOSQ-10) at Week 5 (p=0.004). AXS-12 concurrently improved cognition and cataplexy as compared to placebo. Concurrent cognitive and cataplexy response was achieved at Week 5 by 41% of patients treated with AXS-12 compared to 17% of placebo patients (p=0.016). Response was defined by an increase in days patients rated their Ability to Concentrate as very good or good (cognitive response), and a ≥50% reduction in cataplexy attacks (cataplexy response). AXS-12 improved narcolepsy overall disease condition, and patient function and quality of life. Clinicians reported a rapid and significant reduction in overall narcolepsy severity (CGI-S for narcolepsy overall) for patients treated with AXS-12 compared to placebo at Week 5 (p=0.007), with improvements observed as early as Week 1 (p<0.001). AXS-12 demonstrated significant improvement in overall patient function and quality of life as measured by the FOSQ-10 total score as compared to placebo at Week 5 (p=0.005). Anxiety and depression, known common narcolepsy co-morbidities, was reported by 45% of study participants at baseline, as assessed by the EuroQol (EQ-5D-5L). Improvement from baseline in the Anxiety/Depression domain of the EQ-5D-5L was achieved by 55% of patients treated with AXS-12 compared to 32% of placebo patients (p=0.146). “The SYMPHONY Phase 3 trial results confirm the promise and potential of AXS-12 for the treatment of narcolepsy,” said Dr. Herriot Tabuteau, CEO of Axsome Therapeutics. “Treatment with AXS-12 resulted in rapid and substantial reduction of cataplexy events, the primary endpoint of the SYMPHONY trial, while evidencing improvement across a range of validated global clinical, patient-reported, quality of life, and functional outcome measures. Collectively, the data generated in SYMPHONY highlight AXS-12’s positive therapeutic impact and are consistent with the results from the previously completed positive CONCERT trial. As a next step, we look forward to completing the ongoing open label safety extension trial of AXS-12 as we work to bring this treatment to individuals living with narcolepsy.” AXS-12 was well tolerated in the trial. The most commonly reported adverse events in the AXS-12 arm were dry mouth (n=6), nausea (n=6), and constipation (n=4), which were overall mild to moderate. The rates of discontinuation due to adverse events was low (n=1 in each of AXS-12 and placebo arms). There were no serious adverse events in the trial. AXS-12 was granted Orphan Drug Designation for the treatment of narcolepsy in October 2018. Orphan Drug Designation is granted to promising drugs intended for the safe and effective treatment of rare diseases, defined as those affecting fewer than 200,000 people in the U.S. This designation may entitle Axsome to a period of seven years of marketing exclusivity in the U.S. upon FDA approval and a waiver of the Company’s obligation to pay the FDA application user fees for the product as required by the Prescription Drug User Fee Act. AXS-12 is covered by issued patents providing protection to at least 2039. Axsome plans to present the detailed results of the SYMPHONY trial at upcoming scientific meetings. Summary of Topline Results of the SYMPHONY Trial Effect on Cataplexy AXS-12 demonstrated a substantial and statistically significant reduction from baseline in weekly cataplexy attacks compared to placebo at Week 5, with reductions of 83% for AXS-12 and 66% for placebo (p=0.018). AXS-12 demonstrated a statistically significant reduction from baseline in weekly cataplexy attacks compared to placebo at Week 1, with reductions of 56% for AXS-12 and 31% for placebo (p=0.007). AXS-12 achieved remission of cataplexy (100% reduction from baseline) at Week 5 in 33% of patients compared to 9.5% of placebo patients (p=0.008). Remission at Week 2 was achieved by 24% of AXS-12 treated patients compared to 4.5% of placebo patients (p=0.008). AXS-12 increased the percentage of cataplexy free days (days with zero cataplexy attacks) to 84% at Week 5 compared to 22% for placebo (p=0.014). Effect on Excessive Daytime Sleepiness (EDS) AXS-12 significantly reduced EDS severity compared to placebo at Week 5 with mean reductions on the CGI-S for EDS of 1.8 points for AXS-12 compared to 0.9 points for placebo (p=0.027). Improvement on the CGI-S for EDS was seen as early as Week 1 compared to placebo (p=0.006). Concurrent EDS and cataplexy response was achieved at Week 5 by 57% of patients treated with AXS-12 compared to 33% of placebo patients (p=0.029). A reduction in the number of inadvertent naps was experienced by 54% of AXS-12 patients at Week 5 compared to 28% of placebo patients (p=0.016), assessed by the NSAQ. Mean reductions from baseline on the ESS were 4.8 points for AXS-12 and 3.4 points for placebo. A ≥3-point improvement from baseline on the ESS was achieved by 60% of AXS-12 patients who had a cataplexy response. Effect on Cognitive Function AXS-12 significantly improved concentration and memory as measured by the Cognitive Function Items of the FOSQ-10 at Week 5 (p=0.004). Concurrent cognitive response (increase in days with very good or good Ability to Concentrate) and cataplexy response was achieved at Week 5 by 41% of patients treated with AXS-12 compared to 17% of placebo patients (p=0.016). Effect on Narcolepsy Overall, Function and Quality of Life AXS-12 treatment resulted in significant reduction in overall narcolepsy severity (CGI-S for narcolepsy overall) compared to placebo at Week 5 (p=0.007). Improvement in the CGI-S for narcolepsy overall for AXS-12 compared to placebo was observed as early as Week 1 (p<0.001). AXS-12 demonstrated significant improvement in overall patient function and quality of life as measured by the FOSQ-10 total score as compared to placebo at Week 5 (p=0.005). Anxiety/Depression Comorbidity Anxiety and depression was reported by 45% of study participants at baseline, as assessed by the EQ-5D-5L. Improvement from baseline in the Anxiety/Depression domain of the EQ-5D-5L was achieved by 55% of patients treated with AXS-12 compared to 32% of placebo patients (p=0.146). Safety and Tolerability AXS-12 was well tolerated in the trial. The most commonly reported adverse events in the AXS-12 arm were dry mouth (n=6), nausea (n=6), and constipation (n=4), which were overall mild to moderate. Conference Call Information Axsome will host a conference call and webcast today at 8:00 AM Eastern to discuss the topline SYMPHONY study results in narcolepsy. To participate in the live conference call, please dial (877) 405-1239 (toll-free domestic). The live webcast can be accessed on the “Webcasts & Presentations” page of the “Investors” section of the Company’s website at axsome.com. A replay of the webcast will be available for approximately 30 days following the live event. About the SYMPHONY Trial SYMPHONY (Study Evaluating a Mechanistic Approach to Treating Narcolepsy) was a Phase 3, randomized, double-blind, multicenter, placebo-controlled trial to assess the efficacy and safety of AXS-12 in patients with narcolepsy. In all, a total of 90 patients were randomized in a 1:1 ratio to treatment with AXS-12 or placebo for 5 weeks. Participants took either AXS-12 (5 mg) or placebo once daily during Week 1 followed by twice daily dosing during Weeks 2-5. The median number of cataplexy attacks at baseline was 20 and Epworth Sleep Scores were 17.8 at baseline. The prespecified primary endpoint was the change in frequency of weekly cataplexy attacks. Other symptoms of narcolepsy as well as safety and tolerability were assessed throughout the study. About Narcolepsy Narcolepsy is a serious and debilitating orphan neurological condition that causes dysregulation of the sleep-wake cycle and is characterized clinically by excessive daytime sleepiness, cataplexy, hypnagogic hallucinations, sleep paralysis, and disrupted nocturnal sleep. Cataplexy is seen in an estimated 70% of narcolepsy patients and is a sudden reduction or loss of muscle tone while a patient is awake, typically triggered by strong emotions such as laughter, fear, anger, stress, or excitement. Narcolepsy interferes with cognitive, psychological, and social functioning, increases the risk of work- and driving-related accidents, and is associated with a 1.5-fold higher mortality rate. About AXS-12 AXS-12 (reboxetine) is a highly selective and potent norepinephrine reuptake inhibitor and cortical dopamine modulator under development for the treatment of narcolepsy. AXS-12 is thought to modulate noradrenergic activity to promote maintain tone during wakefulness, and noradrenergic and cortical dopamine signaling to promote wakefulness and enhance cognition. AXS-12 has been granted U.S. Food and Drug Administration (FDA) Orphan Drug Designation for the treatment of narcolepsy. AXS-12 is covered by issued patents providing protection to at least 2039. AXS-12 is an investigational drug product not approved by the FDA. About Axsome Therapeutics, Inc. Axsome Therapeutics, Inc. is a biopharmaceutical company developing and delivering novel therapies for central nervous system (CNS) conditions that have limited treatment options. Through development of therapeutic options with novel mechanisms of action, we are transforming the approach to treating CNS conditions. At Axsome, we are committed to developing products that meaningfully improve the lives of patients and provide new therapeutic options for physicians. For more information, please visit the Company’s website at axsome.com. The Company may occasionally disseminate material, nonpublic information on the company website. Forward Looking Statements Certain matters discussed in this press release are “forward-looking statements”. We may, in some cases, use terms such as “predicts,” “believes,” “potential,” “continue,” “estimates,” “anticipates,” “expects,” “plans,” “intends,” “may,” “could,” “might,” “will,” “should” or other words that convey uncertainty of future events or outcomes to identify these forward-looking statements. In particular, the Company’s statements regarding trends and potential future results are examples of such forward-looking statements. The forward-looking statements include risks and uncertainties, including, but not limited to, the continued commercial success of our Sunosi® and Auvelity® products and the success of our efforts to obtain any additional indication(s) with respect to solriamfetol and/or AXS-05; the success, timing and cost of our ongoing clinical trials and anticipated clinical trials for our current product candidates, including statements regarding the timing of initiation, pace of enrollment and completion of the trials (including our ability to fully fund our disclosed clinical trials, which assumes no material changes to our currently projected revenues or expenses), futility analyses and receipt of interim results, which are not necessarily indicative of the final results of our ongoing clinical trials, and/or data readouts, and the number or type of studies or nature of results necessary to support the filing of a new drug application (“NDA”) for any of our current product candidates; our ability to fund additional clinical trials to continue the advancement of our product candidates; the timing of and our ability to obtain and maintain U.S. Food and Drug Administration (“FDA”) or other regulatory authority approval of, or other action with respect to, our product candidates, including statements regarding the timing of any NDA submission; whether issues identified by FDA in the complete response letter may impact the potential approvability of the Company’s NDA for AXS-07 for the acute treatment of migraine in adults with or without aura, pursuant to our special protocol assessment for the MOMENTUM clinical trial; the Company’s ability to successfully defend its intellectual property or obtain the necessary licenses at a cost acceptable to the Company, if at all; the successful implementation of the Company’s research and development programs and collaborations; the success of the Company’s license agreements; the acceptance by the market of the Company’s products and product candidates, if approved; the Company’s anticipated capital requirements, including the amount of capital required for the continued commercialization of Sunosi and Auvelity and for the Company’s commercial launch of its other product candidates, if approved, and the potential impact on the Company’s anticipated cash runway; unforeseen circumstances or other disruptions to normal business operations arising from or related to geo-political conflicts or a global pandemic and other factors, including general economic conditions and regulatory developments, not within the Company’s control. The factors discussed herein could cause actual results and developments to be materially different from those expressed in or implied by such statements. The forward-looking statements are made only as of the date of this press release and the Company undertakes no obligation to publicly update such forward-looking statements to reflect subsequent events or circumstance. Axsome Contacts: Investors: Mark Jacobson Chief Operating Officer Axsome Therapeutics, Inc. One World Trade Center, 22nd Floor New York, NY 10007 Tel: 212-332-3243 Email: mjacobson@axsome.com Media: Darren Opland Director, Corporate Communications Axsome Therapeutics, Inc. One World Trade Center, 22nd Floor New York, NY 10007 Tel: 929-837-1065 Email: dopland@axsome.com

WAKIX® (pitolisant) Net Revenue of $168.4 Million for Fourth Quarter and $582.0 Million for Full Year 2023; Representing Growth of ~31% and ~33%, Respectively U.S. Food and Drug Administration (FDA) Granted Priority Review for WAKIX in Pediatric Narcolepsy; PDUFA Date of June 21, 2024 Meeting with FDA to Discuss Idiopathic Hypersomnia Development Program Scheduled for March 2024 FDA Granted Orphan Drug Designation to Pitolisant for the Treatment of Prader-Willi Syndrome; On Track to Initiate Phase 3 TEMPO Study in First Quarter 2024 2024 Net Product Revenue Projected Between $700 -$720 Million Conference Call and Webcast to be Held Today at 8:30 a.m. ET PLYMOUTH MEETING, Pa., Feb. 22, 2024 (GLOBE NEWSWIRE) -- Harmony Biosciences Holdings, Inc. (Nasdaq: HRMY), today reported net revenue growth of more than 30% for the fourth quarter and full year ended December 31, 2023. “Harmony delivered another year of outstanding performance in 2023, with continued strong growth for WAKIX, demonstrating its durability going into year five on the market,” stated Jeffrey M. Dayno, M.D., President and Chief Executive Officer of Harmony. “In addition to our strong commercial execution, we advanced all our clinical development programs for pitolisant, moved the Next-Generation formulations of pitolisant into the clinic, expanded our pipeline and diversified our portfolio with the acquisition of Zynerba and the ongoing Phase 3 trial in Fragile X syndrome. Harmony continues to be a growth story and we look forward to continued strong execution in 2024.” Key Business Updates FDA granted priority review of supplemental new drug application (sNDA) for WAKIX in pediatric narcolepsy; PDUFA date of June 21, 2024Meeting with the FDA to discuss Idiopathic Hypersomnia (IH) development program scheduled for March 2024FDA granted Orphan Drug designation to pitolisant for the treatment of Prader-Willi syndrome (PWS); on track to initiate the Phase 3 TEMPO study in patients with PWS in the first quarter of 2024Reported positive Phase 2 proof-of-concept (POC) data in EDS and fatigue in Myotonic Dystrophy Type 1 (DM1) in the fourth quarter of 2023On track to report pharmacokinetic (PK) data on next-gen pitolisant-based formulations in the first half of 2024Expect to complete patient enrollment in the Phase 3 pivotal RECONNECT trial for Fragile X syndrome (FXS) in the first quarter of 2025 with topline data expected in mid-2025On track to report pre-clinical POC data for HBS-102 in PWS in the first half of 2024Repurchased approximately 3.2 million shares of common stock for $100 million in full-year 2023 and expect to continue the opportunistic repurchase of shares under the remaining share repurchase program authorization of $150 million. Fourth Quarter 2023 Financial Results Net product revenue for the quarter ended December 31, 2023 was $168.4 million, compared to $128.3 million for the same period in 2022. The 31% growth versus the same period in 2022 is primarily attributed to strong commercial sales of WAKIX driven by continued organic demand tapping into a large market opportunity (approximately 80,000 patients diagnosed with narcolepsy in the US). The average number of patients on WAKIX increased by approximately 350 sequentially to approximately 6,150 for the quarter ended December 31, 2023. GAAP net income for the quarter ended December 31, 2023, was $26.6 million, or $0.45 per diluted share, compared to GAAP net income of $48.5 million, or $0.79 per diluted share, for the same period in 2022. Non-GAAP adjusted net income was $42.8 million, or $0.73 per diluted share, for the quarter ended December 31, 2023, compared to Non-GAAP adjusted net income of $61.9 million, or $1.01 per diluted share, for the same period in 2022. Reconciliations of applicable GAAP financial measures to Non-GAAP financial measures are included at the end of this press release. Harmony’s operating expenses include the following: Research and Development expenses were $30.3 million in the fourth quarter of 2023, as compared to $10.1 million for the same quarter in 2022, representing a 200% increase. Expenses in the fourth quarter of 2023 included one-time Zynerba transaction related costs of $6.0 million;Sales and Marketing expenses were $26.9 million in the fourth quarter of 2023, as compared to $21.1 million for the same quarter in 2022, representing a 28% increase;General and Administrative expenses were $27.9 million in the fourth quarter of 2023, as compared to $22.6 million for the same quarter in 2022, representing a 23% increase. Expenses in the fourth quarter of 2023 included one-time Zynerba transaction related costs of $3.8 million; andTotal Operating Expenses were $85.1 million in the fourth quarter of 2023, as compared to $53.8 million for the same quarter in 2022, representing a 58% increase. Total Operating Expenses in the fourth quarter of 2023 included one-time Zynerba transaction related costs of $9.8 million. Full Year 2023 Financial Results Net product revenue for the year ended December 31, 2023 was $582.0 million, compared to $437.9 million for 2022. The 33% growth versus the same period in 2022 is primarily attributed to strong commercial sales of WAKIX driven by continued organic demand tapping into a large market opportunity. GAAP net income for the year ended December 31, 2023, was $128.9 million, or $2.13 per diluted share, compared to GAAP net income of $181.5 million, or $2.97 per diluted share, for 2022. The decrease in GAAP net income was primarily driven by the release of the valuation allowance on our deferred tax assets, which resulted in a $74.5 million income tax benefit for the year ended December 31, 2022. Non-GAAP adjusted net income was $188.4 million, or $3.12 per diluted share, for the year ended December 31, 2023, compared to Non-GAAP adjusted net income of $183.5 million, or $3.00 per diluted share, for 2022. Reconciliations of applicable GAAP financial measures to Non-GAAP financial measures are included at the end of this press release. Harmony’s operating expenses include the following: Research and Development expenses were $76.1 million for the year ended December 31, 2023, as compared to $70.9 million for the prior year, representing a 7% increase. Expenses in 2023 included one-time Zynerba transaction related costs of $6.0 million;Sales and Marketing expenses were $97.4 million for the year ended December 31, 2023, as compared to $79.3 million for the prior year, representing a 23% increase;General and Administrative expenses were $95.3 million for the year ended December 31, 2023, as compared to $84.0 million for the prior year, representing a 13% increase. Expenses in 2023 included one-time Zynerba transaction related costs of $3.8 million; andTotal Operating Expenses were $268.8 million for the year ended December 31, 2023, as compared to $234.2 million for the prior year, representing a 15% increase. Total Operating Expenses in 2023 included one-time Zynerba transaction related costs of $9.8 million. As of December 31, 2023, Harmony had cash, cash equivalents and investment securities of $425.6 million, compared to $345.7 million on December 31, 2022. 2024 Net Product Revenue Guidance Expect full year 2024 net product revenue of $700 million to $720 million. Conference Call Today at 8:30 a.m. ET We are hosting our fourth quarter and full year 2023 financial results conference call and webcast today at 8:30 a.m. Eastern Time. The live and replay webcast of the call will be available on the investor relations page of our website at https://ir.harmonybiosciences.com/. To participate in the live call by phone, dial (800) 579-2543 (domestic) or +1 (785) 424-1789 (international), and reference passcode HRMYQ423. Non-GAAP Financial MeasuresIn addition to our GAAP results, we present certain Non-GAAP metrics including Non-GAAP adjusted net income and Non-GAAP adjusted net income per share, which we believe provides important supplemental information to management and investors regarding our performance. These measurements are not a substitute for GAAP measurements, and the manner in which we calculate Non-GAAP adjusted net income and Non-GAAP adjusted net income per share may not be identical to the manner in which other companies calculate adjusted net income and adjusted net income per share. We use these Non-GAAP measurements as an aid in monitoring our financial performance from quarter-to-quarter and year-to-year and for benchmarking against comparable companies. Non-GAAP financial measures should not be considered in isolation or as a substitute for comparable GAAP measures; should be read in conjunction with our 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 addition, from time to time in the future there may be other items that we may exclude for purposes of our Non-GAAP financial measures; and we may in the future cease to exclude items that we have historically excluded for purposes of our Non-GAAP financial measures. About WAKIX® (pitolisant) TabletsWAKIX, a first-in-class medication, is approved by the U.S. Food and Drug Administration for the treatment of excessive daytime sleepiness or cataplexy in adult patients with narcolepsy and has been commercially available in the U.S. since Q4 2019. It was granted orphan drug designation for the treatment of narcolepsy in 2010, and breakthrough therapy designation for the treatment of cataplexy in 2018. WAKIX is a selective histamine 3 (H₃) receptor antagonist/inverse agonist. The mechanism of action of WAKIX is unclear; however, its efficacy could be mediated through its activity at H₃ receptors, thereby increasing the synthesis and release of histamine, a wake promoting neurotransmitter. WAKIX was designed and developed by Bioprojet (France). Harmony has an exclusive license from Bioprojet to develop, manufacture and commercialize pitolisant in the United States. Indications and UsageWAKIX is indicated for the treatment of excessive daytime sleepiness or cataplexy in adult patients with narcolepsy. Important Safety Information ContraindicationsWAKIX is contraindicated in patients with known hypersensitivity to pitolisant or any component of the formulation. Anaphylaxis has been reported. WAKIX is also contraindicated in patients with severe hepatic impairment. Warnings and PrecautionsWAKIX prolongs the QT interval; avoid use of WAKIX in patients with known QT prolongation or in combination with other drugs known to prolong the QT interval. Avoid use in patients with a history of cardiac arrhythmias, as well as other circumstances that may increase the risk of the occurrence of torsade de pointes or sudden death, including symptomatic bradycardia, hypokalemia or hypomagnesemia, and the presence of congenital prolongation of the QT interval. The risk of QT prolongation may be greater in patients with hepatic or renal impairment due to higher concentrations of pitolisant; monitor these patients for increased QTc. Dosage modification is recommended in patients with moderate hepatic impairment and moderate or severe renal impairment (see full prescribing information). WAKIX is not recommended in patients with end-stage renal disease (ESRD). Adverse ReactionsIn the placebo-controlled clinical trials conducted in patients with narcolepsy with or without cataplexy, the most common adverse reactions (≥5% and twice placebo) for WAKIX were insomnia (6%), nausea (6%), and anxiety (5%). Other adverse reactions that occurred at ≥2% and more frequently than in patients treated with placebo included headache, upper respiratory infection, musculoskeletal pain, heart rate increased, hallucinations, irritability, abdominal pain, sleep disturbance, decreased appetite, cataplexy, dry mouth, and rash. Drug InteractionsConcomitant administration of WAKIX with strong CYP2D6 inhibitors increases pitolisant exposure by 2.2-fold. Reduce the dose of WAKIX by half. Concomitant use of WAKIX with strong CYP3A4 inducers decreases exposure of pitolisant by 50%. Dosage adjustments may be required (see full prescribing information). H1 receptor antagonists that cross the blood-brain barrier may reduce the effectiveness of WAKIX. Patients should avoid centrally acting H1 receptor antagonists. WAKIX is a borderline/weak inducer of CYP3A4. Therefore, reduced effectiveness of sensitive CYP3A4 substrates may occur when used concomitantly with WAKIX. The effectiveness of hormonal contraceptives may be reduced when used with WAKIX and effectiveness may be reduced for 21 days after discontinuation of therapy. Use in Specific PopulationsWAKIX may reduce the effectiveness of hormonal contraceptives. Patients using hormonal contraception should be advised to use an alternative non-hormonal contraceptive method during treatment with WAKIX and for at least 21 days after discontinuing treatment. There is a pregnancy exposure registry that monitors pregnancy outcomes in women who are exposed to WAKIX during pregnancy. Patients should be encouraged to enroll in the WAKIX pregnancy registry if they become pregnant. To enroll or obtain information from the registry, patients can call 1-800-833-7460. The safety and effectiveness of WAKIX have not been established in patients less than 18 years of age. WAKIX is extensively metabolized by the liver. WAKIX is contraindicated in patients with severe hepatic impairment. Dosage adjustment is required in patients with moderate hepatic impairment. WAKIX is not recommended in patients with end-stage renal disease. Dosage adjustment of WAKIX is recommended in patients with moderate or severe renal impairment. Dosage reduction is recommended in patients known to be poor CYP2D6 metabolizers; these patients have higher concentrations of WAKIX than normal CYP2D6 metabolizers. Please see the Full Prescribing Information for WAKIX for more information. To report suspected adverse reactions, contact Harmony Biosciences at 1-800-833-7460 or the FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. About NarcolepsyNarcolepsy is a rare, chronic, debilitating neurological disease of sleep-wake state instability that impacts approximately 170,000 Americans and is primarily characterized by excessive daytime sleepiness (EDS) and cataplexy – its two cardinal symptoms – along with other manifestations of REM sleep dysregulation (hallucinations and sleep paralysis), which intrude into wakefulness. EDS is the inability to stay awake and alert during the day and is the symptom that is present in all people living with narcolepsy. In most patients, narcolepsy is caused by the loss of hypocretin/orexin, a neuropeptide in the brain that supports sleep-wake state stability. This disease affects men and women equally, with typical symptom onset in adolescence or young adulthood; however, it can take up to a decade to be properly diagnosed. About Idiopathic HypersomniaIdiopathic Hypersomnia (IH) is a rare and chronic neurological disease that is characterized by excessive daytime sleepiness (EDS) despite sufficient or even long sleep time. EDS in IH cannot be alleviated by naps, longer sleep or more efficient sleep. People living with IH experience significant EDS along with the symptoms of sleep inertia (prolonged difficulty waking up from sleep) and 'brain fog' (impaired cognition, attention, and alertness). The cause of IH is unknown, but it is likely due to alterations in areas of the brain that stabilize states of sleep and wakefulness. IH is one of the central disorders of hypersomnolence and, like narcolepsy, is a debilitating sleep disorder that can result in significant disruption in daily functioning. About Prader-Willi SyndromePWS is an orphan/rare, genetic neurological disorder with many of the symptoms resulting from hypothalamic dysfunction. The hypothalamus is the part of the brain that controls both sleep-wake state stability and signals that mediate the balance between hunger and satiety, resulting in two of the main symptoms in patients with PWS; EDS and hyperphagia (an intense persistent sensation of hunger accompanied by food preoccupations, an extreme drive to consume food, food-related behavior problems, and a lack of normal satiety). Other features include low muscle tone, short stature, behavioral problems, and cognitive impairment. Approximately 15,000 to 20,000 people in the U.S. live with PWS, and over half of them experience EDS and the majority of them have behavioral disturbances. About Myotonic Dystrophy Type 1 Myotonic dystrophy Type 1 (DM1) is the most common form of adult-onset muscular dystrophy. It is a genetic disorder inherited in an autosomal-dominant pattern. Latest estimates suggest a prevalence of about one per 2,100 people with the genetic defect for DM1. This equates to about 150,000 people in the U.S. with the genetic defect for DM1. Estimates suggest there are 40,000 people currently diagnosed with DM1 in the U.S., with up to 90% of them reporting EDS and fatigue and over 60% of them experiencing cognitive dysfunction. About Fragile X SyndromeFragile X syndrome (FXS) is a rare genetic disorder that is the leading known cause of both inherited intellectual disability and autism spectrum disorder. The disorder negatively affects synaptic function, plasticity and neuronal connections, and results in a spectrum of intellectual disabilities and behavioral symptoms, such as social avoidance and irritability. While the exact prevalence is unknown, upwards of 80,000 patients in the U.S. and 121,000 patients in the European Union and the UK are believed to have FXS, based on FXS prevalence estimates of approximately 1 in 4,000 to 7,000 in males and approximately 1 in 8,000 to 11,000 in females. There is a significant unmet medical need in patients living with FXS as there are currently no FDA approved treatments for this disorder. FXS is caused by a mutation in FMR1, a gene which modulates a number of systems, including the endocannabinoid system, and most critically, codes for a protein called FMRP. The FMR1 mutation manifests as multiple repeats of a DNA segment, known as the CGG triplet repeat, resulting in deficiency or lack of FMRP. FMRP helps regulate the production of other proteins and plays a role in the development of synapses, which are critical for relaying nerve impulses, and in regulating synaptic plasticity. In people with full mutation of the FMR1 gene, the CGG segment is repeated more than 200 times, and in most cases causes the gene to not function. Methylation of the FMR1 gene also plays a role in determining functionality of the gene. In approximately 60% of patients with FXS, who have complete methylation of the FMR1 gene, no FMRP is produced, resulting in dysregulation of the systems modulated by FMRP. About ZYN002ZYN002 is the first-and-only pharmaceutically manufactured synthetic cannabidiol devoid of THC and formulated as a patent-protected permeation-enhanced gel for transdermal delivery through the skin and into the circulatory system. The product is manufactured through a synthetic process in a cGMP facility and is not extracted from the cannabis plant. ZYN002 does not contain THC, the compound that causes the euphoric effect of cannabis, and has the potential to be a nonscheduled product if approved. Cannabidiol, the active ingredient in ZYN002, has been granted orphan drug designation by the United States Food and Drug Administration (FDA) and the European Medicines Agency (EMA) for the treatment of FXS and for the treatment of 22q. Additionally, ZYN002 has received FDA Fast Track designation for the treatment of behavioral symptoms in patients with FXS. About HBS-102HBS-102, an investigational compound, is a melanin-concentrating hormone (MCH) receptor 1 (MCHR1) antagonist that targets MCH neurons in the brain. It has the potential to be a first-in-class molecule with a novel mechanism of action that could offer a new approach to the treatment of a variety of rare neurological diseases. About Harmony BiosciencesAt Harmony Biosciences, we specialize in developing and delivering treatments for rare neurological diseases that others often overlook. We believe that where empathy and innovation meet, a better life can begin for people living with neurological diseases. Established by Paragon Biosciences, LLC, in 2017 and headquartered in Plymouth Meeting, PA, our team of experts from a wide variety of disciplines and experiences is driven by our shared conviction that innovative science translates into therapeutic possibilities for our patients, who are at the heart of everything we do. For more information, please visit www.harmonybiosciences.com. Forward-Looking StatementsThis press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements contained in this press release that do not relate to matters of historical fact should be considered forward-looking statements, including statements regarding our product WAKIX and our future capabilities following the acquisition of Zynerba. These statements are neither promises nor guarantees, but involve known and unknown risks, uncertainties and other important factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements, including, but not limited to, the following: our commercialization efforts and strategy for WAKIX; the rate and degree of market acceptance and clinical utility of WAKIX, pitolisant in additional indications, if approved, and any other product candidates we may develop or acquire, if approved; our research and development plans, including our development activities with Bioprojet, and plans to explore the therapeutic potential of pitolisant in additional indications; our ongoing and planned clinical trials; the availability of favorable insurance coverage and reimbursement for WAKIX; the timing of and our ability to obtain regulatory approvals for pitolisant for other indications as well as any of our product candidates, including those we are developing with Bioprojet; our failure to achieve the potential benefits of the 2022 LCA with Bioprojet; our ability to recognize the intended benefits of our acquisition of Zynerba Pharmaceuticals; our estimates regarding expenses, future revenue, capital requirements and needs for additional financing; our ability to identify additional products or product candidates with significant commercial potential that are consistent with our commercial objectives; our commercialization, marketing and manufacturing capabilities and strategy; significant competition in our industry; our intellectual property position; loss or retirement of key members of management; failure to successfully execute our growth strategy, including any delays in our planned future growth; our failure to maintain effective internal controls; the impact of government laws and regulations; volatility and fluctuations in the price of our common stock; the significant costs and required management time as a result of operating as a public company; the fact that the price of Harmony's common stock may be volatile and fluctuate substantially; statements related to our intended share repurchases and repurchase timeframe and the significant costs and required management time as a result of operating as a public company. These and other important factors discussed under the caption "Risk Factors" in our Annual Report on Form 10-K filed with the Securities and Exchange Commission (the "SEC") on February 22, 2024, and our other filings with the SEC could cause actual results to differ materially from those indicated by the forward-looking statements made in this press release. Any such forward-looking statements represent management's estimates as of the date of this press release. While we may elect to update such forward-looking statements at some point in the future, we disclaim any obligation to do so, even if subsequent events cause our views to change. HARMONY BIOSCIENCES HOLDINGS, INC. AND SUBSIDIARY CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (In thousands, except share and per share data) Three Months Ended Year Ended December 31, December 31, December 31, December 31, 2023 2022 2023 2022 Net product revenue$168,412 $128,308 $582,022 $437,855 Cost of product sold 43,152 26,885 121,236 83,481 Gross profit 125,260 101,423 460,786 354,374 Operating expenses: Research and development 30,306 10,092 76,063 70,886 Sales and marketing 26,886 21,075 97,404 79,285 General and administrative 27,872 22,643 95,289 84,017 Total operating expenses 85,064 53,810 268,756 234,188 Operating income 40,196 47,613 192,030 120,186 Loss on debt extinguishment — — (9,766) — Other expense (income), net 193 73 159 169 Interest expense (4,796) (5,444) (23,757) (18,795)Interest income 4,096 1,861 14,730 3,126 Income before income taxes 39,689 44,103 173,396 104,686 Income tax benefit (expense) (13,082) 4,406 (44,543) 76,782 Net income$26,607 $48,509 $128,853 $181,468 EARNINGS PER SHARE: Basic$0.46 $0.82 $2.17 $3.07 Diluted$0.45 $0.79 $2.13 $2.97 Weighted average number of shares of common stock - basic 58,320,400 59,478,933 59,469,648 59,173,121 Weighted average number of shares of common stock - diluted 58,853,292 61,620,712 60,372,397 61,097,045 HARMONY BIOSCIENCES HOLDINGS, INC. AND SUBSIDIARYCONSOLIDATED BALANCE SHEETS(In thousands, except share and per share data) December 31, December 31, 2023 2022 ASSETS CURRENT ASSETS: Cash and cash equivalents$311,660 $243,784 Investments, short-term 41,800 79,331 Trade receivables, net 74,140 54,740 Inventory, net 5,363 4,297 Prepaid expenses 12,570 9,347 Other current assets 5,537 8,786 Total current assets 451,070 400,285 NONCURRENT ASSETS: Property and equipment, net 371 573 Restricted cash 270 750 Investments, long-term 72,169 22,568 Intangible assets, net 137,108 160,953 Deferred tax asset 144,162 85,943 Other noncurrent assets 6,298 2,798 Total noncurrent assets 360,378 273,585 TOTAL ASSETS$811,448 $673,870 LIABILITIES AND STOCKHOLDERS’ EQUITY CURRENT LIABILITIES: Trade payables$17,730 $3,786 Accrued compensation 23,747 11,532 Accrued expenses 99,494 59,942 Current portion of long-term debt 15,000 2,000 Other current liabilities 7,810 1,624 Total current liabilities 163,781 78,884 NONCURRENT LIABILITIES: Long-term debt, net 178,566 189,647 Other noncurrent liabilities 2,109 2,501 Total noncurrent liabilities 180,675 192,148 TOTAL LIABILITIES 344,456 271,032 COMMITMENTS AND CONTINGENCIES (Note 13) STOCKHOLDERS’ EQUITY: Common stock—$0.00001 par value; 500,000,000 shares authorized at December 31, 2023 and December 31, 2022, respectively; - shares 56,769,081 and 59,615,731 issued and outstanding at December 31, 2023 and December 31, 2022, respectively 1 1 Additional paid in capital 610,266 675,118 Accumulated other comprehensive (loss) income 2 (151)Accumulated deficit (143,277) (272,130)TOTAL STOCKHOLDERS’ EQUITY 466,992 402,838 TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY$811,448 $673,870 HARMONY BIOSCIENCES HOLDINGS, INC.RECONCILIATION OF GAAP TO NON-GAAP FINANCIAL RESULTS(In thousands except share and per share data) Three Months Ended Year Ended December 31, December 31, December 31, December 31, 2023 2022 2023 2022 GAAP net income$26,607 $48,509 $128,853 $181,468 Non-GAAP Adjustments: Non-cash interest expense (1) 185 422 3,246 1,663 Depreciation 164 107 514 419 Amortization (2) 5,961 5,961 23,845 22,966 Stock-based compensation expense 8,894 7,671 31,205 26,905 Transaction related costs (3) 9,804 - 9,804 - Loss on debt extinguishment - - 9,766 - Licensing fees and milestone payments (4) - - 750 30,000 Valuation allowance release - - - (74,474)Income tax effect related to non-GAAP adjustments (5) (8,789) (731) (19,624) (5,409)Non-GAAP adjusted net income$42,826 $61,939 $188,359 $183,538 GAAP reported net income per diluted share$0.45 $ 0.79 $2.13 $ 2.97 Non-GAAP adjusted net income per diluted share$0.73 $1.01 $3.12 $3.00 Weighted average number of shares of common stock used in non-GAAP diluted per share 58,853,292 61,620,712 60,372,397 61,097,045 (1) Includes amortization of deferred finance charges.(2) Includes amortization of intangible asset related to WAKIX.(3) Includes costs associated with the acquisition of Zynerba in October 2023. There were $2.3M of IPR&D charges and $3.7M of severance recorded in research and development expenses and $3.8M of severance recorded in general and administrative expenses. (4) Includes a $0.8M milestone payment related to HBS-102 preclinical milestone in March 2023 and $30M licensing fee incurred upon closing the 2022 Licensing and Commercialization Agreement with Bioprojet in August 2022. (5) Calculated using the reported effective tax rate for the periods presented less impact of valuation allowance release and discrete items. Harmony Biosciences Investor Contact:Luis Sanay, CFA445-235-8386lsanay@harmonybiosciences.com Harmony Biosciences Media Contact:Cate McCanless202-641-6086cmccanless@harmonybiosciences.com