This company has been marked as potentially delisted and may not be actively trading. NASDAQ:APTO Aptose Biosciences (APTO) Stock Price, News & Analysis Add Compare Share Share Stock Analysis Stock AnalysisHeadlinesInsider TradesTrendsBuy This Stock About Aptose Biosciences Stock (NASDAQ:APTO) Get Aptose Biosciences alerts:Sign Up Key Stats Today's Range$1.71▼$1.7150-Day Range$1.71▼$6.8652-Week Range$1.35▼$50.10VolumeN/AAverage Volume227,964 shsMarket Capitalization$3.66 millionP/E RatioN/ADividend YieldN/APrice TargetN/AConsensus RatingN/A Company Overview Aptose Biosciences Inc., a clinical-stage biotechnology company, discovers and develops personalized therapies addressing unmet medical needs in oncology in Canada. Its lead clinical program is APTO-253, which is a Phase I clinical trial for the treatment of patients with relapsed or refractory hematologic malignancies. The company has an agreement with CrystalGenomics, Inc. to research, develop, and commercialize CG026806, a non-covalent small molecule therapeutic agent, which is in preclinical stage for the treatment of acute myeloid leukemia and chronic lymphocytic leukemia/mantle cell lymphoma. The company was formerly known as Lorus Therapeutics Inc. and changed its name to Aptose Biosciences Inc. in August 2014. Aptose Biosciences Inc. was founded in 1986 and is headquartered in Mississauga, Canada. Read More Receive APTO Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Aptose Biosciences 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. 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APTO Stock News HeadlinesAptose Biosciences Announces Completion of Acquisition by Hanmi PharmaceuticalJune 30, 2026 | financialpost.comFAptose Presents Safety, Response, and MRD Clinical Data from TUSCANY Phase 1/2 Clinical Trial of Tuspetinib Triplet Therapy in Newly Diagnosed AML at the 2026 EHA Congress in Oral PresentationJune 15, 2026 | globenewswire.comYour $29.97 book is free todayWhy Some Traders Skip Stocks Entirely You don't need a big account to trade options. In fact, options can give you up to 12 times the leverage of stocks — with a fraction of the capital tied up. This free guide lays it all out in plain English — from A to Z, with step-by-step examples you can follow in your own account.August 15 at 1:00 AM | Profits Run (Ad)Aptose Biosciences Announces Update on Anticipated Timing of Closing of the Plan of Arrangement with Hanmi PharmaceuticalMay 29, 2026 | financialpost.comFAptose Reports First Quarter 2026 ResultsMay 13, 2026 | financialpost.comFAptose Reports First Quarter 2026 ResultsMay 13, 2026 | globenewswire.comAptose Biosciences Announces Update on Anticipated Timing of Closing of the Plan of Arrangement with Hanmi PharmaceuticalApril 30, 2026 | markets.businessinsider.comAptose Hanmi Acquisition Closing Delayed Pending Korean ApprovalsApril 30, 2026 | tipranks.comSee More Headlines APTO Stock Analysis - Frequently Asked Questions How were Aptose Biosciences' earnings last quarter? Aptose Biosciences Inc. (NASDAQ:APTO) announced its quarterly earnings results on Thursday, August, 8th. The biotechnology company reported ($12.90) earnings per share for the quarter, beating the consensus estimate of ($17.40) by $4.50. When did Aptose Biosciences' stock split? Aptose Biosciences shares reverse split on the morning of Wednesday, February 26th 2025.The 1-30 reverse split was announced on Tuesday, February 18th 2025. The number of shares owned by shareholders was adjusted after the closing bell on Tuesday, February 25th 2025. An investor that had 100 shares of stock prior to the reverse split would have 3 shares after the split. What other stocks do shareholders of Aptose Biosciences own? Based on aggregate information from My MarketBeat watchlists, some other companies that Aptose Biosciences investors own include Digital Turbine (APPS), Okta (OKTA), Canoo (GOEV), CrowdStrike (CRWD) and NVIDIA (NVDA). Company Calendar Last Earnings8/08/2024Today8/15/2026Fiscal Year End12/31/2026Get Stock AlertsIndustry, Sector and Symbol Stock ExchangeNASDAQ SectorHealthcare Industry Biotechnology Sub-IndustryBiotechnology Current SymbolNASDAQ:APTO CIK882361 Webwww.aptose.com Phone858-926-2730Fax905-234-2120Employees31Year Founded2014Profitability EPS (Trailing Twelve Months)($89.19) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income-$51.21 million Net MarginsN/A Pretax MarginN/A Return on Equity-5,683.22% Return on Assets-300.44% Debt Debt-to-Equity RatioN/A Current Ratio1.05 Quick Ratio1.05 Sales & Book Value Annual SalesN/A Price / SalesN/A Cash FlowN/A Price / Cash FlowN/A Book Value($0.19) per share Price / Book-9.00Miscellaneous Outstanding Shares2,141,000Free Float63,446,000Market Cap$3.66 million OptionableNo Data Beta1.04 Social Links 7 Energy Stocks to Buy and Hold ForeverWith the proliferation of data centers and electric vehicles, the electric grid will only get more strained. Download this report to learn how energy stocks can play a role in your portfolio as the global demand for energy continues to grow.Get This Free Report This page (NASDAQ:APTO) was last updated on 8/15/2026 by MarketBeat.com Staff. From Our PartnersALERT: Drop these 5 stocks before the market opens tomorrow!The Wall Street Journal is already raising the alarm about a potential market crash, and Weiss Ratings researc...Weiss Ratings | SponsoredLouis Navellier: My #1 AI stock for 2026 (name & ticker inside)Louis Navellier's Stock Grader system helped him flag Nvidia before its 82,000% run and has identified the top...InvestorPlace | SponsoredReady to give options a try? Your first trade (Ticker included) -INSIDETired of trying tactic after tactic when it comes to options trades... only to be met with market noise and st...Base Camp Trading | SponsoredThey didn't warn anyone in 1971. 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