Ribomic Inc. (4591.T), founded in 2003 and headquartered in Tokyo, Japan, engages in the discovery and development of pharmaceutical compounds using proprietary RNA aptamer therapeutics via its Ribomic Aptamer Refined Therapeutics (RiboART) platform, which enables shape-capturing binding to target proteins for applications across various disease areas including ophthalmologic disorders, bone diseases, and wet age-related macular degeneration (wet AMD); core products in clinical development include RBM-007 (umędaptanib pegol), an anti-FGF2 aptamer for achondroplasia (early Phase II in Japan with dosing initiated in Cohort 2 and orphan drug designation granted in April 2025) and wet AMD (Phase II trials such as SUSHI, TOFU, RAMEN, and TEMPURA completed), alongside self-discovery and co-discovery pipelines targeting unmet needs through collaborations. The company operates primarily in Japan with a U.S. subsidiary (RIBOMIC USA Inc.) and serves pharmaceutical partners and academic institutions globally. Recent developments encompass a January 2024 joint research agreement with Ajinomoto Co., Inc. for aptamer technologies in eye and bone diseases (with successful pharmacokinetic extension results announced May 2025), a July 2024 cooperative research agreement with The University of Tokyo on ophthalmologic diseases, completion of patient enrollment in RBM-007's early Phase II achondroplasia study in August 2024, and funding of approximately ¥4.19 million from SMBC Nikko Securities Inc. in March 2024; ongoing alliances include Otsuka Pharmaceutical, AJU Pharma, and others for licensing and commercialization.