Pharmaceutical stock Renascience from Japan is up 670% in 2025
Despite Falling Revenues and No News, Renascience Soars — A Case of Momentum-Driven Mania in Tokyo
Japan’s Renascience Inc (TSE:4889) surged another 17% today, closing at a record high of 2,291 yen. This brings its 2025 year-to-date gain to an extraordinary 671%, making it the top-performing pharmaceutical stock in Tokyo.
Key Points
Renascience Inc (TSE:4889) is up 671% in 2025, hitting a record high of 2,291 yen.
Revenue fell 32% in FY2025, with another 14.1% drop forecasted.
No news behind the surge; momentum buying likely driving the rally.
Renascience Inc develops and sells pharmaceuticals and medical devices, focusing on innovative solutions—including AI—for medical challenges. It targets aging-related diseases like cancer, diabetes, respiratory, and cardiovascular conditions, as well as issues affecting women, children, and COVID-19.
The market value of Renascience, which only went public in 2021, now stands at nearly 25 billion yen — roughly €171 million. So far, the company has reported mixed results, with revenue for fiscal year 2025 (ending March) falling to 132.7 million yen from 194.2 million yen in 2024 — a drop of nearly 32%. Moreover, on May 14, when publishing its annual results, Renascience forecasted an additional revenue decline of 14.1% for the current fiscal year 2025.
There has also been no recent news to explain the stock’s surge. We believe this is mostly a case of the “Japanese” way of investing — everyone piling into whatever’s rising fast — something we’ve seen before with names like Liberta (TSE:4935).
The largest shareholder is Toshio Miyata, holding 21.5% of outstanding shares. Interestingly, he recently sold part of his stake, which is now worth over $5 million.
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