Stock report · Delisted · Nasdaq
Aptose Biosciences Inc (APTO)
2.01USD Delisted Final close · Apr 2, 2025

APTO no longer trades. Aptose Biosciences was delisted from the Nasdaq in April 2025.
All prices on this page are historical. The last trade was on April 2, 2025, at $2.01.
APTO stock price history
Final trading statistics
- Final close
- $2.01
- Final trading day
- Apr 2, 2025
- Market cap at delisting
- $5.13M
- Shares outstanding
- 2.55M
- Final 52-week range
- $0.11 – $3.98
- Avg. volume (final 3 mo.)
- 5,929,806
- All-time high
- $880875.00 · Mar 2000
- All-time low
- $1.71 · Apr 2025
- Return since IPO
- -100.0%
- Beta
- 1.13
- Book value / share
- −$14.04
- Price / book
- -0.14
About Aptose Biosciences Inc
Aptose Biosciences was a clinical-stage biotechnology company developing personalized cancer therapies, mainly in the U.S. Its tuspetinib (HM43239) was a once-daily oral kinase inhibitor that had finished a Phase 1/2 trial in myeloid cancers such as acute myeloid leukemia and higher-risk myelodysplastic syndromes.
Luxeptinib (CG-806), an oral small molecule, was in a Phase 1a/b trial in relapsed or refractory B-cell cancers, including chronic lymphocytic leukemia, small lymphocytic lymphoma and some non-Hodgkin's lymphomas, and in relapsed or refractory AML. It held licenses with CrystalGenomics for luxeptinib, and with the National Cancer Institute and Hanmi Pharmaceutical for tuspetinib.
Formerly Lorus Therapeutics, it became Aptose Biosciences in August 2014. It was incorporated in 1986 and based in Toronto, Canada. Its stock was delisted from the Nasdaq in April 2025, with the final trade on April 2, 2025 at $2.01.
- Exchange (former)
- Nasdaq
- Sector
- Healthcare
- Industry
- Biotechnology
- Headquarters
- Toronto, ON
- Employees
- 35
- IPO date
- October 23, 2014
- Delisted
- April 2, 2025
- SEC CIK
- 882361
Aptose Biosciences financials before the delisting
The last 5 fiscal years Aptose Biosciences reported as a public company, fiscal year ending December.
APTO revenue and net income
APTO earnings per share
APTO annual financials
| Fiscal year | Revenue | Net income | EPS |
|---|---|---|---|
| FY2024 | $0.00 | −$25.4M | −$36.43 |
| FY2023 | $0.00 | −$51.2M | −$5.62 |
| FY2022 | $0.00 | −$41.8M | −$0.45 |
| FY2021 | $0.00 | −$65.4M | −$0.73 |
| FY2020 | $0.00 | −$55.2M | −$0.67 |
Net income is GAAP. EPS is adjusted (non-GAAP) EPS, as reported.
Aptose Biosciences stock FAQ
What happened to Aptose Biosciences stock?
Aptose Biosciences was delisted from the Nasdaq in April 2025. The final close was $2.01 on April 2, 2025.
Can I still buy APTO stock?
No. APTO is no longer listed on the Nasdaq or any other U.S. exchange; it was removed on April 2, 2025.
What was the last price of APTO?
APTO last closed at $2.01 on April 2, 2025, which valued the company at about $5.13M.
How did Aptose Biosciences do in its last full fiscal year?
In fiscal 2024, its last full year as a public company, Aptose Biosciences reported revenue of $0.00 and net income of −$25.4M.
When did Aptose Biosciences go public?
Aptose Biosciences shares started trading on October 23, 2014.
APTO no longer trades, so there is no live quote. The information on this page is for reference only and is not investment advice; see our disclaimer.