Core Points - AB Science has announced the issuance of a Canadian patent for AB8939, which protects its composition and use in treating acute myeloid leukemia (AML) until 2036 [1] - The patent completes the intellectual property coverage for AB8939 across all key geographic areas, including Europe, USA, China, Japan, South Korea, India, Israel, Latin America, and Australia [2] - AB8939 is a novel microtubule destabilizer currently in early phase clinical trials for AML, with the first phase focusing on determining the maximum tolerated dose [3] - The drug is also eligible for regulatory data protection in Canada, preventing generic competition for 8 years post-approval, and has received orphan drug designation from EMA and FDA, providing additional market exclusivity [4] - A separate patent application has been filed to protect AB8939 for treating AML with specific chromosomal abnormalities, potentially extending protection until 2044 [5] - AB8939 targets cancer cells by destabilizing microtubules and inhibiting enzymes essential for cancer stem cell survival [6] - AB Science specializes in developing protein kinase inhibitors for diseases with high unmet medical needs and has a portfolio of molecules including masitinib [7][8]

Core Insights - AllianceBernstein L.P. and AllianceBernstein Holding L.P. reported a preliminary increase in assets under management (AUM) to $803 billion in May 2025, up from $781 billion at the end of April, representing a 2.8% month-over-month growth driven by market appreciation, despite net outflows [1][4] Summary by Category Assets Under Management - AUM increased to $803 billion as of May 31, 2025, from $781 billion at April 30, 2025 [1][4] - The increase was attributed to market appreciation, which was partially offset by net outflows [1] Breakdown by Channel - Private wealth saw slight inflows, while institutional and retail channels experienced outflows [1] - The total AUM breakdown includes: - Total Equity: $332 billion, up from $315 billion - Total Fixed Income: $296 billion, up from $295 billion - Alternatives/Multi-Asset: $175 billion, up from $171 billion [3][4] Detailed AUM Composition - Actively Managed Equity: $263 billion - Passive Equity: $69 billion - Total Fixed Income: $296 billion, with Taxable Fixed Income at $207 billion and Tax-Exempt at $79 billion - Alternatives/Multi-Asset: $175 billion [3][4]

PRESS RELEASE AB SCIENCE ANNOUNCES EMA APPROVAL OF MASIVET® SHELF-LIFE EXTENSION TO 4 YEARS Paris, June 9, 2025, 8am CET AB Science SA (Euronext - FR0010557264 - AB) today announced that the European Medicine Agency (EMA) has approved the extension of the shelf-life of its veterinary medicine MASIVET® from 36 months to 48 months. This shelf-life extension applies to the 50mg tablet strength of MASIVET® currently available in the EU. MASIVET® is currently approved for the treatment of non-resectable dog mast ...

Company Overview - AB Science S.A. is a pharmaceutical company founded in 2001, specializing in the research, development, and commercialization of protein kinase inhibitors (PKIs) [5] - The company is headquartered in Paris, France, and is listed on Euronext Paris under the ticker AB [5] - AB Science focuses on diseases with high unmet medical needs, including oncology, neurological diseases, inflammatory diseases, and viral diseases [5] Recent Capital Increase - AB Science announced a capital increase of €1.8 million, which was settled and delivered on May 23, 2025 [1] - This capital increase was subscribed by a limited number of investors and is expected to strengthen the company's cash position [2] Product Development - Masitinib is a novel oral tyrosine kinase inhibitor being developed to target mast cells and macrophages, with potential applications in oncology, inflammatory diseases, and central nervous system diseases [3] - AB8939 is a new synthetic microtubule-destabilizing drug candidate that shows broad anticancer activity and may overcome drug resistance associated with standard chemotherapies [4]

Core Viewpoint - AB Science S.A. successfully completed a private placement raising EUR 1.8 million to finance ongoing activities, particularly focusing on the clinical development of the AB8939 program [1][3]. Group 1: Private Placement Details - The private placement involved the issuance of 1,538,463 new ordinary shares, each with one share warrant attached, without preferential subscription rights [4]. - The issue price of one ABSA was set at EUR 1.17, reflecting a 24.8% discount to the volume-weighted average price over the three trading days prior [6][7]. - The total share capital post-placement will be EUR 661,764.30, comprising 59,368,757 ordinary shares, with potential increases if all BSAs are exercised [11]. Group 2: Use of Proceeds - The net proceeds from the private placement will primarily be allocated to the clinical development of the AB8939 program [3]. Group 3: Shareholder Impact - The issuance of ABSAs will result in a dilution of existing shareholders' stakes, with specific percentages outlined for major shareholders before and after the placement [12][14]. - The theoretical value of each BSA is estimated at EUR 0.4053, based on a volatility of 34.355% [9]. Group 4: Trading and Listing - The new shares are expected to be admitted to trading on Euronext Paris on May 22, 2025, and will be assimilated to existing shares [16]. - The BSAs are anticipated to be listed on Euronext Growth Paris by May 26, 2025 [10]. Group 5: Company Overview - AB Science specializes in the research, development, and commercialization of protein kinase inhibitors, targeting diseases with high unmet medical needs [25]. - The lead compound, masitinib, is being developed for various medical applications, including oncology and inflammatory diseases [25][23].

Core Viewpoint - AB Science has received a Chinese patent for the use of its lead compound masitinib in treating COVID-19, providing intellectual property protection until April 2041 [1][3]. Group 1: Patent and Intellectual Property - The Chinese Patent Office issued a patent for methods of treating SARS-CoV-2 infection with masitinib, ensuring protection until April 2041 [1]. - This patent is based on preclinical data published in the journal Science, demonstrating masitinib's efficacy against SARS-CoV-2 variants [3]. Group 2: Research and Collaboration - AB Science has entered into a collaborative research agreement with the University of Chicago to explore the prevention and treatment of COVID-19 using masitinib and other proprietary drugs [2]. - The agreement includes a royalty-bearing license for any discoveries made, with AB Science paying 1% of net sales on the first registered product and 0.3% on further registered products to the University of Chicago [2]. Group 3: Clinical Results - Positive results from a phase 2 study of masitinib in COVID-19 were recently communicated, confirming its anti-inflammatory activity and potential as a broad antiviral agent [4]. - Professor Olivier Hermine highlighted masitinib's capacity to control activated macrophages and mast cells involved in COVID-19, suggesting its evaluation in future pandemics [4]. Group 4: Company Overview - AB Science, founded in 2001, specializes in the research, development, and commercialization of protein kinase inhibitors targeting diseases with high unmet medical needs [6]. - The company is headquartered in Paris, France, and is listed on Euronext Paris under the ticker AB [7].

Core Insights - Masitinib demonstrates neuroprotective effects by lowering serum neurofilament light chain (NfL), a key biomarker for neurodegenerative disorders such as multiple sclerosis, amyotrophic lateral sclerosis, and Alzheimer's disease [1][4][6] Group 1: Research Findings - The study published in PLOS One shows that masitinib can significantly reduce serum NfL levels, indicating its potential neuroprotective effects [1][3] - At Day 8, masitinib treatment reduced NfL levels by 43% at a dosage of 50 mg/kg/day and by 60% at 100 mg/kg/day, demonstrating a dose-dependent response [5][11] - Absolute serum NfL concentrations were approximately 25% lower in both masitinib treatment groups compared to the EAE control group at Day 8, with further reductions observed at Day 15 [5][6] Group 2: Mechanism of Action - Masitinib targets the innate neuroimmune system, specifically mast cells and microglia, which are implicated in the pathophysiology of neurodegenerative diseases [4][7] - The drug has shown clinical benefits in previous trials for progressive multiple sclerosis, ALS, and mild-to-moderate Alzheimer's disease, reinforcing its therapeutic promise [4][6] Group 3: Functional Performance - Masitinib treatment improved grip strength in EAE mouse models, with treated mice recovering to baseline levels by Day 15, indicating a protective effect on motor function [11] - Both treatment groups exhibited significantly less relative deterioration in grip strength compared to the EAE control group (p < 0.001) [11]

Financial and Corporate Situation - AB Science reported an operating deficit of €6.1 million as of December 31, 2024, a decrease of 55% compared to €13.4 million in 2023 [6][26] - The cash position stood at €8.0 million as of December 31, 2024 [6] - Operating income increased by 10% to €1.072 million in 2024 from €0.970 million in 2023 [27] - Operating expenses decreased by 50%, amounting to €7.244 million less than in 2023 [27][28] Clinical Development - AB Science provided updates on the AB8939 microtubule program, which targets relapsed/refractory acute myeloid leukaemia (AML) [3][4] - The Phase 1 study of AB8939 included 28 patients, assessing the maximum tolerated dose after 3 consecutive days of treatment, with a second stage nearing completion for 14 consecutive days [4][5] - AB8939 showed a 50% response rate against the MECOM gene rearrangement, which is associated with poor prognosis in AML [7][8] Masitinib Platform - Positive results were reported from the Phase 2 study of masitinib in COVID-19, with an odds ratio of 2.4 in favor of the treatment arm after 15 days [16][18] - The European Medicines Agency (EMA) issued a negative opinion for the conditional marketing authorization of masitinib in ALS [19] - A new confirmatory study for masitinib in ALS will be launched, targeting the best responders [21] Intellectual Property Developments - AB Science secured intellectual property rights for AB8939 in AML until 2036 and potentially until 2044 for specific chromosomal abnormalities [8] - New patents were granted for masitinib in the treatment of severe systemic mastocytosis, sickle cell disease, and other indications, extending protection until 2041 or 2042 [23][25][24] Capital Increase and Financial Strategy - A capital increase of €5 million was announced through the issuance of 5,368,725 new ordinary shares [31][34] - The proceeds from the capital increase will support AB Science's activities over the next twelve months [36] - The company has engaged in a Term Capital Increase Program (PACT) with Alpha Blue Ocean, which has provided additional funding [37] Market Position and Analyst Coverage - AB Science has received coverage initiation from DNA Finance and In Extenso Finance, with strong buy opinions indicating a compelling investment opportunity in the biotech sector [41][42]

Core Insights - AB Science announced new data from its phase 3 trial of masitinib in amyotrophic lateral sclerosis (ALS), which will be presented at the ENCALS annual meeting in June 2025, indicating masitinib's potential as a disease modifier [1][2] - The clinical benefit of masitinib is particularly pronounced in a subgroup of ALS patients prior to complete loss of function, supporting the rationale for a phase 3 confirmatory study [2] Company Overview - AB Science, founded in 2001, specializes in the research, development, and commercialization of protein kinase inhibitors (PKIs) targeting diseases with high unmet medical needs [3][4] - The company's lead compound, masitinib, is already registered for veterinary use and is being developed for human medicine across various fields including oncology and neurological diseases [4] Clinical Findings - New analyses show that masitinib reduces serum neurofilament light chain (NfL) levels, suggesting a decrease in neuronal damage and supporting its disease-modifying potential in ALS [1][2] - Subgroup analyses indicate significant treatment effects in ALS patients before complete loss of function, with notable improvements in clinical endpoints and a +12-month survival benefit [2]

Company Announcement - AB Science SA has postponed the publication of its 2024 annual financial report from April 30, 2025, to May 9, 2025, to allow auditors to complete their work [1][2] Company Overview - AB Science, founded in 2001, is a pharmaceutical company focused on the research, development, and commercialization of protein kinase inhibitors (PKIs) targeting diseases with high unmet medical needs [3] - The company's lead compound, masitinib, is registered for veterinary medicine and is being developed for human medicine in areas such as oncology, neurological diseases, inflammatory diseases, and viral diseases [4] Additional Information - AB Science is headquartered in Paris, France, and is listed on Euronext Paris under the ticker AB [4] - Further information can be found on the company's website [5]