NASDAQ:ASMB Assembly Biosciences (ASMB) Stock Price, News & Analysis $18.55 +0.10 (+0.54%) Closing price 07/25/2025 04:00 PM EasternExtended Trading$18.52 -0.03 (-0.13%) As of 07/25/2025 04:10 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 Polygon.io. Learn more. Add Compare Share Share Stock Analysis Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock About Assembly Biosciences Stock (NASDAQ:ASMB) 30 days 90 days 365 days Advanced Chart View Price History Chart DataSkip Price History Chart Get Assembly Biosciences alerts:Sign Up Key Stats Today's Range$18.30▼$18.9750-Day Range$13.52▼$19.3052-Week Range$7.75▼$19.93Volume16,498 shsAverage Volume35,018 shsMarket Capitalization$141.72 millionP/E RatioN/ADividend YieldN/APrice Target$33.00Consensus RatingModerate Buy Company Overview Assembly Biosciences, Inc., a biotechnology company, develops therapeutic candidates for the treatment of viral diseases. It develops ABI-5366, a long-acting herpes simplex virus (HSV) helicase-primase inhibitor that is in Phase 1a/1b clinical trial to treat recurrent genital herpes; ABI-1179, which is in Phase 1a/1b clinical trial for the treatment of recurrent genital herpes; and ABI-6250, a small molecule orally bioavailable hepatitis delta virus entry inhibitor that is in Phase 1a clinical trial. The company also develops ABI-4334, a next-generation capsid assembly modulator, which is in Phase 1b clinical trial for the treatment of hepatitis B virus (HBV). In addition, it develops an oral non-nucleoside polymerase inhibitor targeting transplant-related herpesviruses; and a small molecule interferon-a receptor agonist targeting HBV and HDV. The company has collaboration agreements with Gilead Sciences, Inc. and BeiGene, Ltd. The company was formerly known as Ventrus Biosciences, Inc. and changed its name to Assembly Biosciences, Inc. in June 2014. Assembly Biosciences, Inc. was incorporated in 2005 and is headquartered in South San Francisco, California. Read More Assembly Biosciences Stock Analysis - MarketRank™See Top-Rated MarketRank™ Stocks76th Percentile Overall ScoreASMB MarketRank™: Assembly Biosciences scored higher than 76% of companies evaluated by MarketBeat, and ranked 269th out of 939 stocks in the medical sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation. Analyst's Opinion3.3 / 5Analyst RatingModerate Buy Consensus RatingAssembly Biosciences has received a consensus rating of Moderate Buy. The company's average rating score is 2.67, and is based on 2 buy ratings, 1 hold rating, and no sell ratings.Amount of Analyst CoverageAssembly Biosciences has received no research coverage in the past 90 days.Read more about Assembly Biosciences' stock forecast and price target. Earnings and Valuation0.0 / 5Proj. Earnings GrowthDecreasing Earnings GrowthEarnings for Assembly Biosciences are expected to decrease in the coming year, from ($6.87) to ($7.64) per share.Price to Earnings Ratio vs. the MarketThe P/E ratio of Assembly Biosciences is -2.98, 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 Assembly Biosciences is -2.98, 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 RatioAssembly Biosciences has a P/B Ratio of 3.53. P/B Ratios above 3 indicate that a company could be overvalued with respect to its assets and liabilities.Read more about Assembly Biosciences' valuation and earnings. Short Interest3.0 / 5Short Interest LevelHealthy Percentage of Shares Shorted0.76% of the float of Assembly Biosciences has been sold short.Short Interest Ratio / Days to CoverAssembly Biosciences has a short interest ratio ("days to cover") of 1.1, which is generally considered an acceptable ratio of short interest to trading volume.Change versus previous monthShort interest in Assembly Biosciences has recently increased by 84.34%, indicating that investor sentiment is decreasing significantly. Dividend0.0 / 5Dividend StrengthN/A Dividend YieldAssembly Biosciences does not currently pay a dividend.Dividend GrowthAssembly Biosciences does not have a long track record of dividend growth. Sustainability and ESG4.7 / 5Environmental Score-0.71 Percentage of Shares Shorted0.76% of the float of Assembly Biosciences has been sold short.Short Interest Ratio / Days to CoverAssembly Biosciences has a short interest ratio ("days to cover") of 1.1, which is generally considered an acceptable ratio of short interest to trading volume.Change versus previous monthShort interest in Assembly Biosciences has recently increased by 84.34%, indicating that investor sentiment is decreasing significantly. News and Social Media2.8 / 5News Sentiment0.11 News SentimentAssembly Biosciences has a news sentiment score of 0.11. 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 lower news sentiment than the 1.07 average news sentiment score of Medical companies.News Coverage This WeekMarketBeat has tracked 8 news articles for Assembly Biosciences this week, compared to 6 articles on an average week.Search Interest1 people have searched for ASMB on MarketBeat in the last 30 days. MarketBeat Follows1 people have added Assembly Biosciences to their MarketBeat watchlist in the last 30 days. Company Ownership0.0 / 5Insider TradingN/A Insider Buying vs. Insider SellingIn the past three months, Assembly Biosciences insiders have not sold or bought any company stock.Percentage Held by InsidersOnly 5.30% of the stock of Assembly Biosciences is held by insiders.Percentage Held by InstitutionsOnly 19.92% of the stock of Assembly Biosciences is held by institutions.Read more about Assembly Biosciences' insider trading history. Receive ASMB Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Assembly Biosciences and its competitors with MarketBeat's FREE daily newsletter. Email Address ASMB Stock News HeadlinesAssembly Biosciences Presents Data Highlighting Recurrent Genital Herpes Program at STI & HIV 2025 World Congress and International Herpesvirus WorkshopJuly 26 at 3:00 AM | globenewswire.comAssembly Bio’s (ASMB) HBV Drug Shows Strong Efficacy in Phase 1b TrialJuly 25 at 6:18 AM | msn.comTrump’s #1 America First StockAmerica’s industrial comeback is underway — and it’s bigger than anyone expected. Over $5 trillion has already been pledged to restore U.S. manufacturing. Trump’s tariffs and trade pressure have set off a massive reshoring push, and the flood of investment is still gaining steam. But while everyone’s watching the big names, one under-the-radar company holds the key tech that could make it all work — and potentially benefit the most.July 26 at 2:00 AM | Weiss Ratings (Ad)NCP-SP Leader Rohit Pawar Alleges Maharashtra Minister Was Playing Rummy In Assembly | WATCH VideoJuly 20, 2025 | msn.comHow to Watch Assembly Ball vs. Fail Harder in The Basketball TournamentJuly 19, 2025 | msn.comGeneral Assembly wraps session with major laws on safety, rights, and public orderJuly 19, 2025 | yahoo.comPostgame Q&A: Al Durham, Race Thompson talk Assembly Ball’s loss in Round 1 of TBTJuly 19, 2025 | msn.comUttar Pradesh Assembly Becomes First In India To Launch AI Training For LegislatorsJuly 17, 2025 | msn.comSee More Headlines ASMB Stock Analysis - Frequently Asked Questions How have ASMB shares performed this year? Assembly Biosciences' stock was trading at $15.78 on January 1st, 2025. Since then, ASMB shares have increased by 17.6% and is now trading at $18.55. How were Assembly Biosciences' earnings last quarter? Assembly Biosciences, Inc. (NASDAQ:ASMB) posted its earnings results on Thursday, May, 8th. The biopharmaceutical company reported ($1.17) EPS for the quarter, topping analysts' consensus estimates of ($2.01) by $0.84. The biopharmaceutical company had revenue of $9.42 million for the quarter, compared to analysts' expectations of $7.41 million. Assembly Biosciences had a negative net margin of 124.15% and a negative trailing twelve-month return on equity of 131.77%. When did Assembly Biosciences' stock split? Shares of Assembly Biosciences reverse split on Monday, February 12th 2024.The 1-12 reverse split was announced on Monday, February 12th 2024. The number of shares owned by shareholders was adjusted after the market closes on Monday, February 12th 2024. An investor that had 100 shares of stock prior to the reverse split would have 8 shares after the split. Who are Assembly Biosciences' major shareholders? Assembly Biosciences' top institutional investors include Palumbo Wealth Management LLC (0.24%). Insiders that own company stock include Alexander Schornstein, John G Mchutchison, Jason A Okazaki, Nicole S White, Jeanette M Bjorkquist and Michael Houghton. View institutional ownership trends. How do I buy shares of Assembly Biosciences? Shares of ASMB 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 Assembly Biosciences own? Based on aggregate information from My MarketBeat watchlists, some other companies that Assembly Biosciences investors own include Waste Connections (WCN), Voyager Therapeutics (VYGR), DiamondRock Hospitality (DRH), AU Optronics (AUOTY), American Water Works (AWK), The RMR Group (RMR) and iShares Micro-Cap ETF (IWC). Company Calendar Last Earnings5/08/2025Today7/25/2025Next Earnings (Estimated)8/06/2025Fiscal Year End12/31/2025Get Stock AlertsIndustry, Sector and Symbol Stock ExchangeNASDAQ SectorMedical Industry MED - GENERIC DRG Sub-IndustryPharmaceuticals Current SymbolNASDAQ:ASMB CIK1426800 Webwww.assemblybio.com Phone(833) 509-4583Fax646-706-5101Employees100Year Founded2005Price Target and Rating Average Price Target for Assembly Biosciences$33.00 High Price Target$35.00 Low Price Target$31.00 Potential Upside/Downside+77.9%Consensus RatingModerate Buy Rating Score (0-4)2.67 Research Coverage3 Analysts Profitability EPS (Trailing Twelve Months)($6.23) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income-$40.18 million Net Margins-124.15% Pretax Margin-123.12% Return on Equity-131.77% Return on Assets-36.81% Debt Debt-to-Equity RatioN/A Current Ratio2.05 Quick Ratio2.05 Sales & Book Value Annual Sales$28.52 million Price / Sales4.97 Cash FlowN/A Price / Cash FlowN/A Book Value$5.25 per share Price / Book3.53Miscellaneous Outstanding Shares7,640,000Free Float7,233,000Market Cap$141.72 million OptionableOptionable Beta0.62 Social Links Options Trading Made Easy - Download NowLearn the basics of options trading and how to use them to boost returns and manage risk with this free report from MarketBeat. Click the link below to get your free copy.Get This Free Report This page (NASDAQ:ASMB) was last updated on 7/26/2025 by MarketBeat.com Staff From Our PartnersMarket Panic: Trump Just Dropped a Bomb on Your Stockstock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tarif...American Alternative | Sponsored[Shocking New Report] U.S. Dollar To Crash?The "Death Spiral" Threatening Your Savings But this time, it's not just Dalio ringing the alarm bells…GoldCo Precious Metals | SponsoredTrump's 2025 Economic Revolution Is Here Are Your Retirement Savings Ready?Time is short. Trump's reforms may be coming fast—and the financial system roller coaster may be a ride that y...Create New Advertiser | SponsoredCritical AI announcement set to ignite AI 2.0 I just put together an urgent new presentation that you need to see right away. In short: I believe we are...Timothy Sykes | SponsoredTrump’s betrayal exposed Trump’s Final Reset Inside the shocking plot to re-engineer America’s financial system…and why you need to ...Porter & Company | SponsoredHIDDEN IN THE BOOK OF GENESIS…“This land I will give to you…” — a 4,000-year-old line from Genesis may hold the key to unlocking a $150 tril...Paradigm Press | SponsoredBuffett to put 90% of his money in this one stock?CPA and CFA says you have WAY too many stocks - just buy these 3 After years working at the biggest accoun...Altimetry | SponsoredGoogle did what!?!?A new technology has sparked a modern-day gold rush in Silicon Valley. OpenAI’s Sam Altman invested $375M. Bil...Stansberry Research | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added ten stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding Assembly Biosciences, Inc. Please log in to your account or sign up in order to add this asset to your watchlist. Share Assembly Biosciences With A Colleague Link copied to clipboard. Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.