NASDAQ:KRRO Korro Bio (KRRO) Stock Price, News & Analysis $13.41 +0.01 (+0.07%) Closing price 05/29/2026 04:00 PM EasternExtended Trading$13.30 -0.12 (-0.86%) As of 05/29/2026 05:41 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more. Add Compare Share Share Stock Analysis Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock About Korro Bio Stock (NASDAQ:KRRO) View Price History Chart DataSkip Price History Chart 1 Day 5 Days 30 Days 90 Days 1 Year Advanced 1 Day 1 Day 5 Days 30 Days 90 Days 1 Year Advanced Show volume Show extended hours Get Korro Bio alerts:Sign Up Key Stats Today's Range$12.59▼$13.5250-Day Range$9.15▼$14.3952-Week Range$5.20▼$55.89Volume118,184 shsAverage Volume128,034 shsMarket Capitalization$193.37 millionP/E RatioN/ADividend YieldN/APrice Target$16.71Consensus RatingModerate Buy Company Overview Korro Bio, Inc. is a clinical-stage biotechnology company focused on harnessing advanced protein engineering and synthetic biology to develop novel enzyme therapies and live microbial therapeutics. The company’s proprietary platform integrates directed evolution, high-throughput screening and computational design to optimize biological catalysts for a wide range of applications. By combining machine learning with experimental biology, Korro Bio seeks to accelerate the discovery and development of next-generation treatments for rare genetic disorders and complex metabolic diseases. The company’s pipeline features both engineered enzyme therapeutics and live biotherapeutics. Lead candidate KB103 is an investigational enzyme replacement therapy designed to address congenital hyperbilirubinemia by restoring deficient UGT1A1 activity. In parallel, Korro Bio is advancing a portfolio of live microbial drug candidates aimed at modulating the human microbiome to treat unmet medical needs in gastroenterology and oncology. These programs reflect the company’s dual focus on systemic enzyme therapies and targeted microbial approaches. Founded in 2019 and headquartered in Boston, Massachusetts, Korro Bio completed its initial public offering on the Nasdaq under the ticker KRRO in late 2021. The company collaborates with leading academic and industry partners to expand its enzyme discovery platform and accelerate translational research. Led by an experienced management team with backgrounds in biotherapeutics, protein science and drug development, Korro Bio serves a global pharmaceutical customer base and is committed to advancing innovative treatments from bench to bedside.AI Generated. May Contain Errors. Read More Korro Bio Stock Analysis - MarketRank™See Top-Rated MarketRank™ Stocks61st Percentile Overall ScoreKRRO MarketRank™: Korro Bio scored higher than 61% of companies evaluated by MarketBeat, and ranked 397th out of 870 stocks in the medical sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation. Analyst's Opinion4.4 / 5Analyst RatingModerate Buy Consensus RatingKorro Bio has received a consensus rating of Moderate Buy. The company's average rating score is 2.92, and is based on 3 strong buy ratings, 6 buy ratings, 2 hold ratings, and 1 sell rating.Upside PotentialKorro Bio has a consensus price target of $16.71, representing about 24.6% upside from its current price of $13.41.Amount of Analyst CoverageKorro Bio has been the subject of 7 research reports in the past 90 days, demonstrating strong analyst interest in this stock.Read more about Korro Bio's stock forecast and price target. Earnings and Valuation0.0 / 5Proj. Earnings GrowthDecreasing Earnings GrowthEarnings for Korro Bio are expected to decrease in the coming year, from ($5.38) to ($6.05) per share.Price to Earnings Ratio vs. the MarketThe P/E ratio of Korro Bio is -1.15, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.Price to Earnings Ratio vs. SectorThe P/E ratio of Korro Bio is -1.15, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.Price to Book Value per Share RatioKorro Bio has a P/B Ratio of 1.62. P/B Ratios below 3 indicates that a company is reasonably valued with respect to its assets and liabilities.Read more about Korro Bio's valuation and earnings. Short Interest0.0 / 5Short Interest LevelBearish Percentage of Shares Shorted8.70% of the float of Korro Bio has been sold short.Short Interest Ratio / Days to CoverKorro Bio has a short interest ratio ("days to cover") of 11.45, which indicates bearish sentiment.Change versus previous monthShort interest in Korro Bio has recently increased by 6.90%, indicating that investor sentiment is decreasing significantly. Dividend0.0 / 5Dividend StrengthN/A Dividend YieldKorro Bio does not currently pay a dividend.Dividend GrowthKorro Bio does not have a long track record of dividend growth. News and Social Media2.4 / 5News Sentiment0.85 News SentimentKorro Bio has a news sentiment score of 0.85. This score is calculated as an average of sentiment of articles about the company over the last seven days and ranges from 2 (good news) to -2 (bad news). This news sentiment score is similar to the average news sentiment of Medical companies.News Coverage This WeekMarketBeat has tracked 5 news articles for Korro Bio this week, compared to 3 articles on an average week.Search InterestOnly 2 people have searched for KRRO on MarketBeat in the last 30 days. This is a decrease of -78% compared to the previous 30 days. Company Ownership3.9 / 5Insider TradingAcquiring Shares Cluster Insider Buying9 insiders have purchased shares of Korro Bio in the last three months. Multiple insiders buying is a strong bullish signal.Net Insider BuyingOver the last three months, insiders have purchased a net $18,412,560.00 in company stock, which represents 9.5218% of the company's market cap.Insider Buying vs. Insider SellingIn the past three months, Korro Bio insiders have bought more of their company's stock than they have sold. Specifically, they have bought $18,412,560.00 in company stock and sold $0.00 in company stock.Percentage Held by Insiders4.80% of the stock of Korro Bio is held by insiders.Percentage Held by Institutions13.18% of the stock of Korro Bio is held by institutions.Read more about Korro Bio's insider trading history. Receive KRRO Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Korro Bio and its competitors with MarketBeat's FREE daily newsletter. Submit View SMS TermsSMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy. KRRO Stock News HeadlinesAnalysts Are Bullish on Top Healthcare Stocks: Korro Bio (KRRO), Veeva Systems (VEEV)May 30 at 9:34 AM | theglobeandmail.comKorro Bio (KRRO) Receives a Buy from H.C. WainwrightMay 29 at 1:24 PM | theglobeandmail.comTicker Revealed: Pre-IPO Access to "Next Elon Musk" CompanyWe’ve found The Next Elon Musk… and what we believe to be the next Tesla. It’s already racked up $26 billion in government contracts. Peter Thiel just bet $1 Billion on it.May 31 at 1:00 AM | Banyan Hill Publishing (Ad)Korro to Present at the 2026 Jefferies Global Healthcare ConferenceMay 27, 2026 | globenewswire.comAnalysts Are Bullish on These Healthcare Stocks: Regeneron (REGN), Korro Bio (KRRO)May 20, 2026 | theglobeandmail.comCitigroup initiates coverage of Korro Bio (KRRO) with buy recommendationMay 20, 2026 | msn.comKorro Selects KRRO-111 as Development Candidate for the Potential Treatment of Alpha-1 Antitrypsin Deficiency (AATD)May 19, 2026 | globenewswire.comKorro Bio Reports Inducement Grant Under Nasdaq Listing Rule 5635(c)(4)May 15, 2026 | globenewswire.comSee More Headlines KRRO Stock Analysis - Frequently Asked Questions How have KRRO shares performed this year? Korro Bio's stock was trading at $8.01 at the beginning of the year. Since then, KRRO stock has increased by 67.4% and is now trading at $13.41. How were Korro Bio's earnings last quarter? Korro Bio, Inc. (NASDAQ:KRRO) announced its quarterly earnings data on Thursday, May, 7th. The company reported ($1.69) earnings per share (EPS) for the quarter, missing analysts' consensus estimates of ($1.60) by $0.09. Korro Bio had a negative net margin of 1,834.48% and a negative trailing twelve-month return on equity of 117.86%. When did Korro Bio IPO? Korro Bio (KRRO) raised $90 million in an IPO on Thursday, October 3rd 2019. The company issued 6,000,000 shares at a price of $14.00-$16.00 per share. Who are Korro Bio's major shareholders? Top institutional shareholders of Korro Bio include Affinity Asset Advisors LLC (4.90%), ADAR1 Capital Management LLC (3.75%), Renaissance Technologies LLC (0.94%) and Kalehua Capital Management LLC (0.76%). Insiders that own company stock include Lynx1 Capital Management Lp, Rick Yang, Paul Edward Walker, Mohamad Makhzoumi, Enterprise Associates 17 New, Anthony A Jr Florence, Venture Opportunity Fund Atlas, David L Lucchino and Vineet Agarwal. View institutional ownership trends. How do I buy shares of Korro Bio? Shares of KRRO stock can be purchased through any online brokerage account. Popular online brokerages with access to the U.S. stock market include Charles Schwab, E*TRADE, Fidelity, and Vanguard Brokerage Services. What other stocks do shareholders of Korro Bio own? Based on aggregate information from My MarketBeat watchlists, some other companies that Korro Bio investors own include Tesla (TSLA), NVIDIA (NVDA), Advanced Micro Devices (AMD), Meta Platforms (META), JPMorgan Chase & Co. (JPM), Netflix (NFLX) and Home Depot (HD). Company Calendar Last Earnings5/07/2026Today5/31/2026Next Earnings (Estimated)8/11/2026Fiscal Year End12/31/2026Get Stock Alerts Health Indicator TradeSmith's Health IndicatorA long-term volatility-based measure designed for securities held 12 months or longer.Green: Strong and healthy uptrend with normal pullbacks.Yellow: Significant pullback but still within expected volatility.Red: Dropped beyond expected volatility; considered unhealthy. Green Zone (4m+) 1-Year History May 25 Aug 25 Nov 25 Feb 26 May 26 KRRO's financial health is in the Green zone, according to TradeSmith. KRRO has been in this zone for over 4 months. Industry, Sector and Symbol Stock ExchangeNASDAQ SectorMedical Industry MED - DRUGS Sub-IndustryPharmaceutical Products Current SymbolNASDAQ:KRRO Previous SymbolNASDAQ:KRRO CIK1703647 Webwww.frequencytx.com Phone781-315-4600FaxN/AEmployees70Year Founded2018Price Target and Rating Average Price Target for Korro Bio$16.71 High Price Target$23.00 Low Price Target$10.00 Potential Upside/Downside+24.6%Consensus RatingModerate Buy Rating Score (0-4)2.92 Research Coverage12 Analysts Profitability EPS (Trailing Twelve Months)($11.67) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income-$117.26 million Net Margins-1,834.48% Pretax Margin-2,935.09% Return on Equity-117.86% Return on Assets-71.04% Debt Debt-to-Equity RatioN/A Current Ratio8.13 Quick Ratio8.13 Sales & Book Value Annual Sales$6.39 million Price / Sales30.26 Cash FlowN/A Price / Cash FlowN/A Book Value$8.29 per share Price / Book1.62Miscellaneous Outstanding Shares14,420,000Free Float13,731,000Market Cap$193.37 million OptionableNo Data Beta3.07 Social Links Reduce the RiskMarket downturns give many investors pause, and for good reason. 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