Positive News SentimentPositive NewsNASDAQ:KRRO Korro Bio (KRRO) Stock Price, News & Analysis $12.24 +0.62 (+5.34%) As of 09/4/2026 04:00 PM Eastern Add Compare Share Share Stock Analysis Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsInsider TradesNews and TrendsOwnershipSEC FilingsShort Interest 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$11.53▼$12.3050-Day Range$10.07▼$14.7252-Week Range$5.20▼$55.89Volume78,429 shsAverage Volume77,060 shsMarket Capitalization$180.30 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™ Stocks51st Percentile Overall ScoreKRRO MarketRank™: Korro Bio scored higher than 51% of companies evaluated by MarketBeat, and ranked 468th out of 910 stocks in the healthcare sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation. Analyst's Opinion3.9 / 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 36.6% upside from its current price of $12.24.Amount of Analyst CoverageKorro Bio has only been the subject of 2 research reports in the past 90 days.Read more about Korro Bio's stock forecast and price target. Earnings and Valuation0.6 / 5Proj. Earnings GrowthGrowing Earnings GrowthEarnings for Korro Bio are expected to grow in the coming year, from ($4.97) to ($4.52) per share.Price to Earnings Ratio vs. the MarketThe P/E ratio of Korro Bio is -1.22, 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 -1.22, 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 2.24. 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 Shorted10.78% 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 14.28, which indicates bearish sentiment.Change versus previous monthShort interest in Korro Bio has recently increased by 5.09%, 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 Media3.6 / 5News Sentiment1.73 News SentimentKorro Bio has a news sentiment score of 1.73. 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 is a higher news sentiment than the 0.78 average news sentiment score of Healthcare companies.News Coverage This WeekMarketBeat has tracked 2 news articles for Korro Bio this week, compared to 4 articles on an average week.Search Interest2 people have searched for KRRO on MarketBeat in the last 30 days. Company Ownership1.8 / 5Insider TradingSelling Shares Insider Buying vs. Insider SellingIn the past three months, Korro Bio insiders have sold 5,616.83% more of their company's stock than they have bought. Specifically, they have bought $78,815.00 in company stock and sold $4,505,723.00 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. 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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 HeadlinesKorro to Participate in Upcoming Investor ConferencesAugust 27, 2026 | globenewswire.comKorro Bio, Inc. (NASDAQ:KRRO) Given Average Recommendation of "Moderate Buy" by AnalystsAugust 27, 2026 | americanbankingnews.comThis sub-5 dollar stock operates next to SpaceX and Blue OriginA small public company trading under $5 a share operates inside the secure perimeter of Kennedy Space Center, right alongside SpaceX and Blue Origin. It holds a special agreement to use a multi-billion dollar federal launch facility for just $500, and its customer list already includes the Pentagon, Lockheed Martin, and GE Aerospace. Most Wall Street analysts have not caught on yet, but a major milestone could change that soon.September 6 at 1:00 AM | Freedom Financial (Ad)Insider Selling: Korro Bio (NASDAQ:KRRO) Director Sells $398,552.00 in StockAugust 22, 2026 | insidertrades.comKorro Bio Moves KRRO-121 Into First Human Trials, Raising the Stakes in Rare Disease RNA EditingAugust 20, 2026 | tipranks.comKorro Bio Advances KRRO-121 Into First Human TrialAugust 19, 2026 | tipranks.comKorro Bio Reports Inducement Grant Under Nasdaq Listing Rule 5635(c)(4)August 14, 2026 | globenewswire.comKorro Bio (NASDAQ:KRRO) Major Shareholder Acquires $19,283.78 in StockAugust 14, 2026 | insidertrades.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 2026. Since then, KRRO shares have increased by 52.8% and is now trading at $12.24. How were Korro Bio's earnings last quarter? Korro Bio, Inc. (NASDAQ:KRRO) released its quarterly earnings results on Thursday, August, 6th. The company reported ($1.07) earnings per share for the quarter, topping the consensus estimate of ($1.34) by $0.27. Korro Bio had a negative net margin of 1,834.48% and a negative trailing twelve-month return on equity of 114.26%. 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 $14.00-$16.00 per share. Who are Korro Bio's major shareholders? Top institutional shareholders of Korro Bio include Atlas Venture Life Science Advisors LLC (6.54%), BlackRock Inc. (5.67%), Nantahala Capital Management LLC (4.48%) and ADAR1 Capital Management LLC (3.67%). Insiders that own company stock include Lynx1 Capital Management Lp, Paul Edward Walker, Mohamad Makhzoumi, Enterprise Associates 17 New, Anthony A Jr Florence, Rick Yang, Venture Opportunity Fund Atlas, Jean Francois Formela, Ram Aiyar, David L Lucchino, Loic A Vincent, Todd Chappell 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 Earnings8/06/2026Today9/06/2026Next Earnings (Estimated)11/11/2026Fiscal 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 (7m+) 1-Year History Sep 25 Dec 25 Mar 26 Jun 26 Sep 26 KRRO's financial health is in the Green zone, according to TradeSmith. KRRO has been in this zone for over 7 months. Industry, Sector and Symbol Stock ExchangeNASDAQ SectorHealthcare Industry Biotechnology Sub-IndustryBiotechnology 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+36.6%Consensus RatingModerate Buy Rating Score (0-4)2.92 Research Coverage12 Analysts Profitability EPS (Trailing Twelve Months)($10.00) 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-4,441.85% Return on Equity-114.26% Return on Assets-68.57% Debt Debt-to-Equity RatioN/A Current Ratio9.55 Quick Ratio9.55 Sales & Book Value Annual Sales$6.39 million Price / Sales28.22 Cash FlowN/A Price / Cash FlowN/A Book Value$5.46 per share Price / Book2.24Miscellaneous Outstanding Shares14,730,000Free Float14,019,000Market Cap$180.30 million OptionableNo Data Beta3.09 Social Links 7 Best Space Stocks to Own in 2026The space race is growing fast, and you don’t have to have gotten in early on SpaceX to profit. This report shows seven space stocks you can buy today that may grow as rockets, satellites, defense, space internet, and new space technology become more important.Get This Free Report This page (NASDAQ:KRRO) was last updated on 9/6/2026 by MarketBeat.com Staff. From Our PartnersThis looks like plywood. It's not.AI data centers have a power problem nobody likes to talk about. 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