Core Viewpoint - Suzhou Ribo BioTechnology Co., Ltd. (Ribo Bio) officially listed on the Hong Kong Stock Exchange, attracting significant investor interest due to its solid technology and clear pipeline in the biotech sector [1] Company Overview - Ribo Bio's global offering consisted of 31.61 million shares at an issue price of HKD 57.97 per share, with the first-day opening price at HKD 75, reflecting a 29.38% increase from the issue price [1] - The public offering was oversubscribed over 100 times, and the international offering was 16.7 times oversubscribed, raising over HKD 1.8 billion [1] - The company is recognized as a key player in the small nucleic acid technology and pharmaceutical field in China, attracting participation from notable domestic and international investment institutions [1] Technology and Product Pipeline - Ribo Bio possesses a clinically validated liver-targeting GalNAc delivery technology, RiboGalSTAR™, which enables efficient and specific delivery of siRNA to liver cells [2] - The company has established a robust product pipeline with seven self-developed siRNA candidates in clinical stages, including RBD4059, the first siRNA drug targeting FXI for thrombotic diseases [2][3] - RBD4059 shows potential advantages in reducing bleeding risk while effectively combating thrombosis, with a long-acting profile that may extend dosing intervals to several months [2] Market Potential - The global small nucleic acid drug market is experiencing rapid growth, projected to increase from USD 2.7 billion in 2019 to USD 5.7 billion in 2024, and expected to reach USD 20.6 billion and USD 54.9 billion by 2029 and 2034, respectively [3] - Ribo Bio's pipeline aligns with significant unmet clinical needs, particularly in thrombotic diseases and hypertriglyceridemia, which are prevalent and have substantial patient populations [4] - RBD4059 and RBD5044 are positioned to address limitations of current therapies, with RBD5044 targeting high triglyceride levels showing potential to become a best-in-class therapy [4] Future Outlook - The successful listing on the Hong Kong Stock Exchange marks a new chapter for Ribo Bio, providing capital to support its development [5] - With a solid research foundation, differentiated product pipeline, and clear commercial strategy, Ribo Bio is poised to become an influential player in the global small nucleic acid therapy landscape, offering new treatment hopes for millions of patients worldwide [5]

Core Viewpoint - The launch of Rebio Biotech on the Hong Kong Stock Exchange marks a significant entry into the Chinese innovative drug industry, particularly in the small RNA field, with a share price set at HKD 57.97 and a listing date of January 9, 2026. The company has attracted notable institutional investors, indicating strong market interest [1][2]. Group 1: Industry Context - The global pharmaceutical innovation is transitioning into the "nucleic acid era," with small RNA drugs emerging as a disruptive treatment paradigm, following small molecules and antibody drugs [1]. - The industry is at a critical turning point, moving from "scientific breakthroughs" to "commercial realization," particularly in the siRNA sector [3]. Group 2: Company Positioning - Rebio Biotech is one of the few companies globally with comprehensive self-research capabilities in small RNA drugs, covering the entire process from target discovery to clinical development [1]. - The company has established a fully autonomous research and production platform, positioning itself to compete internationally and define new treatment standards [1][6]. Group 3: Product Pipeline and Validation - The company’s core products, RBD4059 and RBD5044, are strategically positioned in validated therapeutic areas, reducing development risks and enhancing commercial prospects [10][11]. - RBD4059 targets coagulation factor XI (FXI) and aims to transform anticoagulation therapy, while RBD5044 targets APOC3 for treating hypertriglyceridemia, benefiting from established regulatory pathways [10][11]. Group 4: Technological and Operational Strengths - Rebio's proprietary delivery systems, such as RiboGalSTAR™, have been clinically validated, providing a competitive edge and expanding the application of siRNA therapies beyond liver diseases [9]. - The company has established a clinical trial base in Sweden, ensuring compliance with international standards and facilitating entry into major markets [13]. Group 5: Financial Performance and Growth Potential - The company reported a revenue of CNY 104 million in the first half of 2025, a year-on-year increase of 56.57%, with a reduction in losses by 30.94%, indicating accelerating commercialization capabilities [6]. - The upcoming IPO funding will primarily support global clinical research for core products and enhance technology platform development, facilitating the transition from clinical to commercial stages [18][20]. Group 6: Strategic Collaborations - Rebio has secured strategic partnerships with leading pharmaceutical companies, which not only provide funding but also validate its technological capabilities [14]. - The company retains rights to overseas markets in its licensing agreements, highlighting its focus on global value realization [14]. Group 7: Future Outlook - The dual strategy of advancing proprietary products and engaging in platform licensing is expected to create a sustainable revenue model, enhancing financial stability and supporting ongoing research [17][18]. - Rebio Biotech is positioned for a systematic value reassessment as it combines technology, product pipeline, and international operational capabilities, making it a unique player in the biotechnology sector [20].

RBD4059为全球首款且临床开发进展最快的抗血栓siRNA药物。 本文为IPO早知道原创 作者｜罗宾 瑞博生物目前拥有 6 款自研管线处于临床试验阶段，涉及 7 种适应症，其中 4 款处于 2 期临床试验 中，一款已进入 III 期临床试验。公司还有 20 个计划推进到临床开发阶段的临床前项目。 来源：公司招股书 核心产品 RBD4059 （靶向 FXI 的 siRNA ）为全球首款、也是临床开发进展最快的用于治疗血栓性 疾病的 siRNA 药物 ，通过选择性抑制 FXI ， RBD4059 可在不显著增加出血风险（传统抗凝剂的常 见局限性）的情况下降低血栓形成的风险，同时以低频率的给药产生持久的疗效，提高患者的依从 性。 同时，公司还在推进两款关键产品 RBD5044 及 RBD1016 。 RBD5044 是全球第二个进入临床开发 的靶向 APOC3 的 siRNA 。 APOC3 是一种在脂质代谢中起关键作用的蛋白质。而 RBD1016 凭借 其对 HBsAg 的强效和持久作用，是未来实现 CHB 功能性治愈的联合方法的重要支柱疗法，及治疗 CHD 的领先 siRNA 候选药物。 公司经过近二十年的专 ...

Core Viewpoint - Suzhou Ribo BioTechnology Co., Ltd. has submitted its A1 listing application to the Hong Kong Stock Exchange, marking a significant step in its development as a pioneer in RNA interference (RNAi) technology and small nucleic acid drug commercialization [1] Group 1: Company Overview - Ribo Bio was established in 2007 and is one of the earliest pioneers in the field of RNAi technology [1] - The company has received strategic investments from several well-known institutions, including Junlian Capital and Guotou Innovation [1] Group 2: Market Potential - The global small nucleic acid drug market has grown from $2.7 billion in 2019 to $4.6 billion in 2023, with a compound annual growth rate (CAGR) of 14.3%, and is expected to reach $46.7 billion by 2033 [2] - siRNA drugs are seen as a disruptive innovation in the pharmaceutical industry, with clinical success rates improving from below 10% for traditional drugs to over 60% for siRNA [2] Group 3: Product Pipeline - Ribo Bio currently has six self-developed siRNA drugs in clinical trials, with four in Phase II trials and over 20 preclinical assets in development [4] - The key product RBD4059 is the first siRNA drug for thrombotic diseases and is progressing rapidly in clinical trials [6] - RBD5044 targets high triglycerides and is the second siRNA drug targeting APOC3 to enter clinical development [7] - RBD7022 is a promising candidate for treating high cholesterol, showing comparable LDL-C reduction to the approved drug Inclisiran [8] - RBD1016 is a key candidate for chronic hepatitis B treatment, showing good safety and efficacy in early trials [9] Group 4: Technological Advancements - Ribo Bio has developed the RiboGalSTAR™ liver-targeting delivery platform, which has shown strong efficacy and safety in clinical studies [12] - The company has established a comprehensive R&D network with nearly 300 researchers and has a production line compliant with EU GMP standards [11] Group 5: Strategic Collaborations - Ribo Bio has entered a significant collaboration with Boehringer Ingelheim, valued at over $2 billion, marking a notable recognition of its RNAi technology platform [13] - The company aims to leverage its innovative capabilities and global partnerships to enhance its position in the small nucleic acid drug market [13]