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Ribomic, Inc. (4591) AI Stock Analysis

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JP:4591

Ribomic, Inc.

(TSE/TYO:4591)

Select Model
Rating:46Neutral
Price Target:JPY 62.00â–²(3.33% Upside)
Action:reiterated
Date:10/09/26

The score is primarily held back by weak financial performance driven by ongoing losses and cash burn, only partly mitigated by a debt-free, net-cash balance sheet. Technical conditions are also soft with the stock trading below key moving averages and negative MACD. Valuation provides limited support due to the negative P/E and no dividend yield data.

Positive Factors
Debt-free balance sheetA net-cash balance sheet with no debt reduces financial risk and avoids interest or refinancing pressure. This gives Ribomic more flexibility to continue funding its development activities and withstand operating volatility than a similarly loss-making biotech with leverage.
Negative Factors
Persistent unprofitabilityRibomic remains deeply unprofitable, with revenue still too small to support its expense base. Persistent operating and net losses weaken the probability of near-term self-sustaining earnings and leave the company dependent on continued balance-sheet resources as development progresses.

Ribomic, Inc. (4591) vs. iShares MSCI Japan ETF (EWJ)

-40%-30%-20%-10%0%10%20%30%JP:4591-32.58%EWJ+10.53%Dec '25Jan '26Feb '26Mar '26Apr '26May '26Jun '26Jul '26Aug '26Sep '26Oct '26Nov '26
Market Cap
JPY 3.45B
Dividend Yield
―
Average Volume (3M)
620.70K
Price to Earnings (P/E)
-2.5
Beta (1Y)
0.44
Revenue Growth
1135.58%
EPS Growth
2.37%
Country
Japan
Employees
25
Sector
General
Sector Strength
55
Industry
Biotechnology

Ribomic, Inc. Business Overview & Revenue Model

Company Description

Ribomic Inc. is a Japanese biopharmaceutical company dedicated to identifying and advancing medicinal compounds. The firm employs RNA aptamers in its drug development efforts, targeting various significant health issues such as wet age-related macula...

Ribomic, Inc. Financial Statement Overview

Summary

Financials reflect an early-stage biotech profile: persistent large operating/net losses and minimal revenue relative to expenses (weak income statement), alongside ongoing negative operating and free cash flow (continued cash burn). The main offset is a net-cash, zero-debt balance sheet, but equity has been trending down, indicating losses are eroding the capital base.

Income Statement

14Very Negative

Balance Sheet

62Positive

Cash Flow

18Very Negative
Financial statement breakdown
BreakdownTTMMar 2026Mar 2025Mar 2024Mar 2023Mar 2022
Income Statement
Total Revenue7.50M3.00M2.11M065.97M80.91M
Gross Profit3.85M-995.00K1.19M-10.50M00
EBITDA-1.23B-1.20B-1.05B-1.11B-1.79B-1.73B
Net Income-1.19B-1.15B-1.02B-1.02B-1.65B-1.68B
Balance Sheet
Total Assets2.89B2.98B3.19B3.55B4.58B4.95B
Cash, Cash Equivalents and Short-Term Investments2.78B2.83B3.04B3.40B4.33B4.70B
Total Debt000000
Total Liabilities150.03M135.09M142.21M155.81M199.30M260.53M
Stockholders Equity2.74B2.84B3.04B3.39B4.38B4.69B
Cash Flow
Free Cash Flow-255.11M-1.12B-1.03B-955.48M-1.73B-1.51B
Operating Cash Flow-250.76M-1.11B-996.97M-932.76M-1.71B-1.50B
Investing Cash Flow-54.35M289.83M67.18M177.27M276.35M689.56M
Financing Cash Flow347.70M911.05M667.26M27.65M1.33B354.72M

Ribomic, Inc. Technical Analysis

Technical Analysis SentimentNegative
Last Price60.00

Price Trends

50DMA76.32Negative
100DMA73.19Negative
200DMA78.86Negative

Market Momentum

MACD-3.49Negative
RSI31.24Neutral
STOCH27.62Neutral

Evaluating momentum and price trends is crucial in stock analysis to make informed investment decisions. For JP:4591, the sentiment is Negative. The current price of 60.00 is below the 20-day moving average (MA) of 67.35, below the 50-day MA of 76.32, and below the 200-day MA of 78.86, indicating a bearish trend. The MACD of -3.49 indicates Negative momentum. The RSI at 31.24 is Neutral, neither overbought nor oversold. The STOCH value of 27.62 is Neutral, not indicating any strong overbought or oversold conditions. Overall, these indicators collectively point to a Negative sentiment for JP:4591.

Ribomic, Inc. Peers Comparison

Overall Rating

UnderperformOutperform
Sector (55)

Financial Indicators

JP:4591 against its peers
NameOverall RatingMarket CapP/E RatioROEDividend YieldRevenue GrowthEPS Growth
Sector *55Neutral$6.65B3.83-15.92%6.20%10.91%7.18%
JP:2183JP:218350NeutralJPY 4.49B-1.17―4.06%-21.55%-497.97%
JP:4591JP:459146NeutralJPY 3.60B-2.45――1135.58%2.37%
JP:4571JP:457142NeutralJPY 7.10B-5.05-33.61%―74.24%-7.78%
JP:4587JP:458742NeutralJPY 143.59B-37.57-7.17%―0.62%27.66%
JP:4575JP:457539UnderperformJPY 14.00B-10.04―――-8.52%

* General Sector Average

Performance Comparison

-40%-20%0%20%JP:4591JP:4587JP:4571JP:2183JP:4575Dec '25Jan '26Feb '26Mar '26Apr '26May '26Jun '26Jul '26Aug '26Sep '26Oct '26Nov '26
JP:4591 and its peers over the selected period
Show on chartTickerCompany NamePriceChange% Change
JP:4591Ribomic, Inc.60.00-30.00-33.33%
JP:4587Peptidream 1143.00-382.50-25.07%
JP:4571NanoCarrier Co., Ltd.74.00-84.00-53.16%
JP:2183Linical Co., Ltd.197.00-143.48-42.14%
JP:4575CanBas Co., Ltd.668.00-132.00-16.50%

Ribomic, Inc. Corporate Events

Ribomic Signs Foreign DDS Aptamer Evaluation Deal, Updates FY 2027 Outlook

Oct 20, 2026

Ribomic, Inc. has entered a technology evaluation agreement with an undisclosed foreign biotechnology company to test its proprietary DDS aptamer platform, marking the sixth such deal under its drug discovery support business. Under the arrangement,...

Ribomic Reports Sustained Growth Benefits in Interim Phase 2 Data for Achondroplasia Drug

Oct 6, 2026

Ribomic reported interim results from a phase 2 long-term trial of umedaptanib pegol in pediatric patients with achondroplasia, covering 11 participants who entered extended dosing and seven who remain on treatment. The company said sustained growth...

RIBOMIC Reports Early Safety Data for Umedaptanib Pegol in Achondroplasia Study

Sep 29, 2026

RIBOMIC reported that no safety concerns have emerged after three months of weekly 1 mg/kg subcutaneous treatment with umedaptanib pegol in a pediatric achondroplasia Phase 2 long-term extension study. The update covers the first participant who tran...

Ribomic Completes Site Network for Phase 3 Achondroplasia Trial in Japan

Aug 24, 2026

Ribomic has completed the establishment of all planned clinical trial sites for its Phase 3 study of umedaptanib pegol in paediatric achondroplasia patients in Japan, securing Institutional Review Board approval at six additional locations to reach a...

Ribomic Posts Quarterly Loss but Maintains Strong Equity Base and Full-Year Outlook

Aug 13, 2026

Ribomic reported non-consolidated results for the quarter ended June 30, 2026, posting modest operating revenue of ¥4 million and a net loss of ¥270 million, slightly narrower in per-share terms than the prior-year period. Total assets decl...

Glossary
BuyA stock rated as a "Buy" is expected to perform better than the overall market or a specific benchmark over the near-to-medium term. This rating suggests the stock is likely to deliver higher returns compared to other stocks in the same sector or market index. Note: This is not investment advice; please consult a financial advisor before making investment decisions.
HoldA stock rated as a "Hold" is expected to perform in line with the overall market or a specific benchmark. This rating indicates that the stock is neither particularly compelling nor unfavorable for investment. Note: This is not investment advice; please consult a financial advisor before making investment decisions.
SellA stock rated as a "Sell" is expected to perform worse than the overall market or a specific benchmark over the near-to-medium term. This rating suggests the stock may deliver lower returns compared to other stocks in the same sector or market index. Note: This is not investment advice; please consult a financial advisor before making investment decisions.

Disclaimer

This AI Analyst Stock Report is automatically generated by our AI systems using advanced algorithms and publicly available financial, technical, and market data. While the information provided aims to be accurate and insightful, it is intended for informational purposes only and should not be considered financial advice. Any content created by an AI (Artificial Intelligence) system may contain inaccuracies and/or contain errors. Investing in stocks carries inherent risks, and past performance is not indicative of future results. This report does not account for your personal financial circumstances, objectives, or risk tolerance. Always conduct your own research or consult with a qualified financial advisor before making investment decisions. The analysis and recommendations provided are based on historical and current data and may not fully reflect future market conditions or unexpected developments. Neither the creators of this report nor its affiliated entities guarantee the accuracy, completeness, or reliability of the information presented. Use this report at your own discretion and risk.

Date of analysis: Oct 09, 2026