Aptose Biosciences Inc. (TSX:APS)

Canada flag Canada · Delayed Price · Currency is CAD
2.190
-0.140 (-6.01%)
Jun 10, 2026, 11:15 AM EST
Market Cap5.59M -21.8%
Revenue (ttm)n/a
Net Income-38.47M
EPS-15.06
Shares Out 2.55M
PE Ration/a
Forward PEn/a
Dividendn/a
Ex-Dividend Daten/a
Volume1,000
Open2.200
Previous Close2.330
Day's Range2.190 - 2.200
52-Week Range1.020 - 2.590
Beta0.30
Analystsn/a
Price Targetn/a
Earnings DateAug 12, 2026

About Aptose Biosciences

Aptose Biosciences Inc., a clinical-stage biotechnology company, discovers and develops precision medicines addressing unmet medical needs in oncology primarily in the United States. The company’s clinical-stage oral kinase inhibitors include tuspetinib (HM43239), a once-daily oral kinase inhibitor that has completed Phase 1/2 clinical trial targeting a select group of kinases operative in myeloid malignancies, such as acute myeloid leukemia and the higher risk myelodysplastic syndromes. It has license agreements with National Cancer Institute ... [Read more]

Industry Biotechnology
Sector Healthcare
Founded 1986
Employees 14
Stock Exchange Toronto Stock Exchange
Ticker Symbol APS
Full Company Profile

Financial Performance

Financial numbers in USD Financial Statements

News

Aptose Biosciences Announces Update on Anticipated Timing of Closing of the Plan of Arrangement with Hanmi Pharmaceutical

SAN DIEGO and TORONTO, May 29, 2026 (GLOBE NEWSWIRE) -- Aptose Biosciences Inc. (“Aptose” or the “Company”) (TSX: APS; OTC: APTOF) announced today that closing of the previously announced arrangement ...

12 days ago - GlobeNewsWire

Aptose Biosciences Earnings release: Q1 2026

Aptose Biosciences released its Q1 2026 earnings on May 13, 2026, summarizing the period's financial results.

4 weeks ago - Filings

Aptose Biosciences Quarterly report: Q1 2026

Aptose Biosciences has published its Q1 2026 quarterly earnings report on May 13, 2026.

4 weeks ago - Filings

Aptose Biosciences Announces Results of Special Shareholders Meeting; Announces Receipt of Final Court Approval of Plan of Arrangement; Reports Year End 2025 Results and Corporate Highlights

Aptose Biosciences Announces Results of Special Shareholders Meeting; Announces Receipt of Final Court Approval of Plan of Arrangement; Reports Year End 20

2 months ago - GlobeNewsWire

Aptose Biosciences Annual report: Q4 2025

Aptose Biosciences has published its Q4 2025 annual report on March 31, 2026.

2 months ago - Filings

Leading Independent Proxy Advisory Firm Glass Lewis Endorses Aptose Plan of Arrangement

Shareholders are Recommended to Vote “FOR” the Aptose BiosciencesProposed Plan of Arrangement with Hanmi Pharmaceutical Shareholders are Reminded of Voting Deadline for Upcoming Special Meeting SAN DI...

2 months ago - GlobeNewsWire

Aptose Biosciences says ISS recommends shareholders vote for Hanmi arrangement

Aptose Biosciences (APTOF) announced that Institutional Shareholder Services has recommended that Aptose shareholders vote “FOR” a special resolution to approve the previously announced arrangement pu...

2 months ago - TheFly

Leading Independent Proxy Advisory Firm ISS Recommends Aptose Biosciences Shareholders Vote “FOR” Proposed Plan of Arrangement with Hanmi Pharmaceutical

Leading Independent Proxy Advisory Firm ISS Recommends Aptose Biosciences Shareholders Vote “FOR” Proposed Plan of Arrangement with Hanmi Pharmaceutical

2 months ago - GlobeNewsWire

Aptose Biosciences announces amendment to arrangement agreement

Aptose Biosciences (APTOF) entered into an amended and restated arrangement agreement dated February 23, 2026 amending and restating the arrangement agreement dated November 18, 2025, pursuant to whic...

3 months ago - TheFly

Aptose Biosciences Proxy statement: Proxy Filing

Aptose Biosciences filed a proxy statement on February 24, 2026, providing details for shareholder voting and corporate governance matters.

3 months ago - Filings

Aptose Biosciences Proxy statement: Proxy Filing

Aptose Biosciences filed a proxy statement on February 17, 2026, providing details for shareholder voting and corporate governance matters.

4 months ago - Filings

Aptose Biosciences Proxy statement: Proxy Filing

Aptose Biosciences filed a proxy statement on February 9, 2026, providing details for shareholder voting and corporate governance matters.

4 months ago - Filings

Aptose Biosciences Proxy statement: Proxy Filing

Aptose Biosciences filed a proxy statement on January 15, 2026, providing details for shareholder voting and corporate governance matters.

5 months ago - Filings

Aptose Biosciences Announces Rescheduling of Special Meeting of Shareholders to Approve the Acquisition by Hanmi Pending Final Clearance from SEC

SAN DIEGO and TORONTO, Dec. 19, 2025 (GLOBE NEWSWIRE) -- Aptose Biosciences Inc. (“Aptose” or the “Company”) (TSX: APS; OTC: APTOF) announced today that it will be rescheduling its upcoming special me...

6 months ago - GlobeNewsWire

Aptose's Tuspetinib Triple Drug Therapy Featured at the 2025 ASH Annual Meeting; High Rate of Frontline Clinical Responses Continues Across AML Populations

Aptose's Tuspetinib Triple Drug Therapy Featured at 2025 ASH Annual Meeting; High Rate of Frontline Clinical Responses Continues Across AML Population

6 months ago - GlobeNewsWire

Aptose Biosciences Proxy statement: Proxy Filing

Aptose Biosciences filed a proxy statement on December 5, 2025, providing details for shareholder voting and corporate governance matters.

6 months ago - Filings

Aptose Biosciences downgraded to Neutral from Buy at Alliance Global

Alliance Global downgraded Aptose Biosciences (APTOF) to Neutral from Buy with a C$2.41 price target The firm does not expect better offer than the Hanmi tender.

7 months ago - TheFly

Aptose Biosciences Announces Arrangement Agreement for Acquisition by Hanmi Pharmaceutical

SAN DIEGO and TORONTO, Nov. 19, 2025 (GLOBE NEWSWIRE) -- Aptose Biosciences Inc. (“Aptose” or the “Company”) (TSX: APS; OTC: APTOF) and Hanmi Pharmaceutical Co. Ltd. (“Hanmi”) today announced that Apt...

7 months ago - GlobeNewsWire

Aptose Reports Third Quarter 2025 Results

Tuspetinib Continues to Demonstrate Excellent Safety and Complete Responses in the TUSCANY Clinical Trial of Tuspetinib in AML Triple Drug Frontline Therapy at Increased Dose Levels Patients are Now B...

7 months ago - GlobeNewsWire

Aptose Biosciences Earnings release: Q3 2025

Aptose Biosciences released its Q3 2025 earnings on November 13, 2025, summarizing the period's financial results.

7 months ago - Filings

Aptose Biosciences Quarterly report: Q3 2025

Aptose Biosciences has published its Q3 2025 quarterly earnings report on November 13, 2025.

7 months ago - Filings

Aptose's Tuspetinib Exceeds Expectations When Combined with Standard of Care Treatment Across Diverse Populations of Newly Diagnosed AML

Addition of TUS to VEN+AZA achieves CR/CRh responses in all (6/6, 100%) patients treated at the higher dose levels of 80 mg and 120 mg TUS, exceeding the 66% rate expected from VEN+AZA alone CR/CRh re...

8 months ago - GlobeNewsWire

Aptose Biosciences Announces Results of Reconvened Annual and Special Shareholders Meeting and Appointment of Ernst & Young LLP as New Auditor

SAN DIEGO and TORONTO, Aug. 22, 2025 (GLOBE NEWSWIRE) -- Aptose Biosciences Inc. (“Aptose” or the “Company”) (TSX: APS; OTC: APTOF), a clinical-stage precision oncology company developing a tuspetinib...

10 months ago - GlobeNewsWire

Aptose Reports Early Data Demonstrating Tuspetinib Improves Standard of Care Treatment Across Diverse Populations of Newly Diagnosed AML in Phase 1/2 TUSCANY Trial

Addition of Tuspetinib (TUS) to Venetoclax (VEN) and Azacitidine (AZA) is being developed as safe and mutation agnostic frontline therapy for AML Addition of TUS to VEN+AZA improves response rates; 10...

10 months ago - GlobeNewsWire

Aptose Reports Second Quarter 2025 Results

Tuspetinib Continues to Demonstrate Excellent Safety and Complete Responses in the TUSCANY Clinical Trial of Tuspetinib in AML Triple Drug Frontline Therapy at 120 mg Dose Cohort Safety Review Committ...

10 months ago - GlobeNewsWire