Is Aptose Biosciences Inc. (APTO) a Buy, Sell, or Hold?
NASDAQ : APTO
Aptose Biosciences Inc. — Institutional Ownership
$1.71 USD
$1.71 (0%)
- Volume
- 648.21K
- Average Volume
- 223.28K
- Market Capitalization
- $4.36M
- P/E Ratio
- -0.65
- Dividend Yield
- 0.00%
- Price Target
- Year High
- $43.19
- Year Low
- $1.10
- Day High
- —
- Day Low
- —
- Payout Ratio
- $0.00
- Current Ratio
- $0.55
Institutional Ownership Summary
Institutional Ownership %
%
Investors Holding
change: 0.0 | last:
Increased Positions
change: 0.0 | last:
Reduced Positions
change: 0.0 | last:
New Positions
change: 0.0 | last:
Sold Positions
change: 0.0 | last:
Total Calls
-
Total Puts
-
Put-Call Ratio
change: 0.0 | last:
Total Invested
-
Beneficial Ownership Filings
| Filing Date | Reporting Person | Amount Beneficially Owned | % of Class |
|---|---|---|---|
| 2025-08-14 | Bleichroeder LP | 41666.0 | 1.61% |
| 2025-05-13 | Bleichroeder LP | 163.03K | 6.30% |
| 2025-03-24 | Bleichroeder LP | 163.03K | 7.50% |
| 2025-03-21 | Bleichroeder LP | 3.75M | 6.20% |
| 2025-03-20 | Hanmi Pharmaceutical Co., Ltd. | 508.71K | 19.90% |
| 2025-02-14 | Armistice Capital, LLC | 1.03M | 4.99% |
| 2025-02-13 | Bleichroeder LP | 3.75M | 6.20% |
| 2024-11-14 | Steven Boyd | 1.96M | 9.99% |
| 2024-11-14 | Armistice Capital, LLC | 1.96M | 9.99% |
| 2023-09-12 | Pharmaceutical Co., Ltd. | 884.15K | 12.07% |
| 2023-01-17 | Vanman Charitable Foundation | 200K | 0.20% |
| 2023-01-17 | Bios Capital Management, LP | 5.11M | 5.50% |
| 2023-01-17 | LLC | 250K | 0.30% |
| 2023-01-17 | Joseph O’Donnell | 100000.0 | 0.11% |
| 2023-01-17 | the Arts and Education | 124.1K | 0.10% |
| 2023-01-17 | Robert Vernon Vanman | 200K | 0.20% |
| 2023-01-17 | Bios Equity Partners SOF I, LP | 4.24M | 4.60% |
| 2023-01-17 | LP | 925.04K | 0.11% |
| 2023-01-17 | Bios Special Opportunity Fund, LP | 3.31M | 3.60% |
| 2023-01-17 | Bios Advisors GP, LLC | 5.11M | 5.50% |
| 2023-01-17 | Aaron G.L. Fletcher | 6.25M | 6.77% |
| 2022-02-14 | Wilmot B. Harkey | 7.6M | 8.50% |
| 2022-02-14 | Daniel Mack | 7.6M | 8.50% |
| 2022-02-14 | Nantahala Capital Management, LLC | 7.6M | 8.50% |
| 2022-02-11 | OrbiMed Capital LLC | - | 0.00% |
| 2021-08-10 | DRW Investments, LLC | 8.89M | 9.99% |
| 2021-02-17 | Consonance Capman GP LLC | - | 0.00% |
| 2021-02-17 | Mitchell Blutt | - | 0.00% |
| 2021-02-17 | Consonance Capital Opportunity Fund Management LP | - | 0.00% |
| 2021-02-17 | Consonance Capital Management LP | - | 0.00% |
| 2021-02-16 | Consonance Capman GP LLC | 6.06M | 9.99% |
| 2021-02-16 | Mitchell Blutt | - | 0.00% |
| 2021-02-16 | Consonance Capital Opportunity Fund Management LP | - | 0.00% |
| 2021-02-16 | Consonance Capital Opportunity Fund Management LP | 1.19M | 2.04% |
| 2021-02-16 | Mitchell Blutt | 6.06M | 9.99% |
| 2021-02-16 | Consonance Capman GP LLC | - | 0.00% |
| 2021-02-16 | Consonance Capital Management LP | - | 0.00% |
| 2021-02-16 | Consonance Capital Management LP | - | 0.00% |
| 2021-02-12 | Nantahala Capital Management, LLC | 7.27M | 8.20% |
| 2021-02-12 | OrbiMed Capital LLC | 8.03M | 9.04% |
| 2021-02-12 | Daniel Mack | 7.27M | 8.20% |
| 2021-02-12 | Wilmot B. Harkey | 7.27M | 8.20% |
| 2021-02-01 | DRW Investments, LLC | 7.97M | 8.97% |
| 2021-01-15 | Herbert Abramson | 3.69M | 4.10% |
| 2020-02-14 | Daniel Mack | 6.05M | 8.00% |
| 2020-02-14 | Consonance Capital Opportunity Fund Management LP | 687.13K | 0.90% |
| 2020-02-14 | Consonance Capital Management LP | 4.09M | 5.37% |
| 2020-02-14 | Mitchell Blutt | 4.77M | 6.27% |
| 2020-02-14 | Consonance Capman GP LLC | 4.77M | 6.27% |
| 2020-02-14 | Wilmot B. Harkey | 6.05M | 8.00% |
| 2020-02-14 | Nantahala Capital Management, LLC | 6.05M | 8.00% |
| 2020-02-04 | Herbert Abramson | 4.11M | 5.60% |
| 2019-12-27 | Opaleye Management Inc. | 9.0 | 5.52% |
| 2019-02-12 | Donald R. Wilson, Jr. | 2.47M | 6.55% |
| 2019-02-12 | DRW Securities, LLC | 2.47M | 6.55% |
| 2019-01-16 | Herbert Abramson | 3.72M | 9.80% |
| 2018-02-14 | Bihua Chen | - | 0.00% |
| 2018-02-14 | Cormorant Asset Management, LLC | - | 0.00% |
| 2018-02-14 | Cormorant Global Healthcare GP, LLC | - | 0.00% |
| 2018-02-14 | Cormorant Global Healthcare Master Fund, LP | - | 0.00% |
| 2018-02-14 | Laurence W.Lytton | 1.78M | 6.20% |
| 2018-01-19 | Herbert Abramson | 2.6M | 9.60% |
| 2017-06-09 | Laurence W.Lytton | 1.19M | 5.50% |
| 2017-01-17 | Herbert Abramson | 1.45M | 9.20% |
| 2016-03-29 | Herbert Abramson | 805.83K | 6.70% |
| 2016-02-16 | Cormorant Asset Management, LLC | 1.08M | 9.30% |
| 2016-02-16 | Cormorant Global Healthcare GP, LLC | 1.08M | 9.30% |
| 2016-02-16 | Cormorant Global Healthcare Master Fund, LP | 1.08M | 9.30% |
| 2016-02-16 | Bihua Chen | 1.08M | 9.30% |
| 2015-03-02 | Sheldon Inwentash | 614.47K | 5.30% |
| 2015-02-13 | Pinetree Income Partnership | 874.3K | 7.50% |
| 2015-02-13 | Pinetree Capital Ltd. | 874.3K | 7.50% |
| 2015-02-13 | Pinetree Capital Investment Corp. | 874.3K | 7.50% |
| 2015-02-13 | Emerald Capital Corp. | 874.3K | 7.50% |
| 2015-02-09 | Charles B. Johnson | 1.42M | 12.10% |
| 2014-11-26 | Pinetree Capital Ltd. | 869.3K | 7.50% |
| 2014-11-26 | Sheldon Inwentash | 1.49M | 12.80% |
| 2014-11-26 | Emerald Capital Corp. | 869.3K | 7.50% |
| 2014-11-26 | Pinetree Capital Investment Corp. | 869.3K | 7.50% |
| 2014-11-26 | Pinetree Income Partnership | 869.3K | 7.50% |
| 2014-04-14 | Cormorant Global Healthcare GP, LLC | 13M | 11.50% |
| 2014-04-14 | Cormorant Asset Management, LLC | 13M | 11.50% |
| 2014-04-14 | Cormorant Global Healthcare Master Fund, LP | 13M | 11.50% |
| 2014-04-14 | Bihua Chen | 13M | 11.50% |
| 2013-02-05 | (. | 1.37M | 3.20% |
| 2012-02-14 | (. | 1.08M | 5.00% |
| 2011-02-07 | 2187792 Ontario Inc. | 528.26K | 3.40% |
| 2011-02-07 | 1346049 Ontario Limited | 528.26K | 3.40% |
| 2011-02-07 | Trapeze Asset Management Inc. | 528.26K | 3.40% |
| 2011-02-07 | Trapeze Capital Corp. | 528.26K | 3.40% |
| 2011-02-07 | Randall Abramson | 528.26K | 3.40% |
| 2011-02-07 | William Richard Hermon | 1.39M | 8.60% |
| 2010-11-16 | William Richard Hermon | 1.28M | 8.70% |
| 2010-04-22 | Trapeze Asset Management Inc. | 15.44M | 5.10% |
| 2010-04-22 | 2187792 Ontario Inc. | 15.44M | 5.10% |
| 2010-04-22 | Randall Abramson | 15.44M | 5.10% |
| 2010-04-22 | Trapeze Capital Corp. | 15.44M | 5.10% |
| 2010-04-22 | 1346049 Ontario Limited | 15.44M | 5.10% |
| 2007-05-04 | High Tech Private Equity GmbH | 29.09M | 13.70% |
| 2007-05-04 | High Tech Beteiligungen GmbH & Co. KG | 29.09M | 13.70% |
| 2007-05-04 | Conpharm Anstalt | 29.09M | 13.70% |
| 2007-05-04 | Georg Ludwig | 29.09M | 13.70% |
| 2006-02-27 | Technifund Inc. | 9.52M | 5.50% |
| 2006-02-27 | Herbert Abramson | 9.6M | 5.50% |
| 1998-03-24 | Connor Clark & Company Ltd. | 4.07M | 11.00% |
| 1998-03-24 | Connor Clark & Company Ltd. | 4.07M | 11.00% |
| 1997-02-14 | Connor, Clark & Company Ltd. | 4.99M | 11.00% |
APTO Enterprise Value History
Annual
| Date | Stock Price | Shares Outstanding | Market Cap | Cash & Equivalents | Total Debt | Enterprise Value |
|---|---|---|---|---|---|---|
| 2025-12-31 | $1.71 | 2.45M | $4.18M | $935K | $193K | $3.44M |
| 2024-12-31 | $6.76 | 4.44M | $30.02M | $6.15M | $10.64M | $34.51M |
| 2023-12-31 | $76.20 | 6.76M | $514.73M | $9.25M | $1.02M | $506.49M |
| 2022-12-31 | $130.50 | 6.15M | $802.72M | $36.97M | $1.3M | $767.06M |
| 2021-12-31 | $303.75 | 5.94M | $1.8B | $39.11M | $574K | $1.76B |
| 2020-12-31 | $985.50 | 5.94M | $5.85B | $117.39M | $1.07M | $5.73B |
| 2019-12-31 | $1275.75 | 3.34M | $4.27B | $79.84M | $1.53M | $4.19B |
| 2018-12-31 | $429.75 | 2.23M | $956.65M | $15.3M | -$ | $941.35M |
| 2017-12-31 | $504.00 | 1.49M | $749.72M | $10.63M | -$ | $739.09M |
| 2016-12-31 | $312.75 | 849.53K | $265.69M | $7.94M | -$ | $257.75M |
Quarterly
| Date | Stock Price | Shares Outstanding | Market Cap | Cash & Equivalents | Total Debt | Enterprise Value |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1.71 | 2.55M | $4.36M | $1.02M | $80000 | $3.42M |
| 2025-12-31 | $1.71 | 2.45M | $4.18M | $935K | $193K | $3.44M |
| 2025-09-30 | $1.71 | 2.55M | $4.36M | $613K | $305K | $4.06M |
| 2025-06-30 | $2.20 | 2.55M | $5.62M | $553K | $413K | $5.48M |
| 2025-03-31 | $3.15 | 2.13M | $6.7M | $4.7M | $8.98M | $10.98M |
| 2024-12-31 | $6.76 | 5.6M | $37.84M | $6.15M | $10.64M | $42.33M |
| 2024-09-30 | $12.33 | 5.6M | $69.02M | $7.96M | $10.72M | $71.78M |
| 2024-06-30 | $22.35 | 5.6M | $125.11M | $8.33M | $818K | $117.6M |
| 2024-03-31 | $48.00 | 5.6M | $268.7M | $7.35M | $919K | $262.27M |
| 2023-12-31 | $76.20 | 6.62M | $504.82M | $9.25M | $1.02M | $496.59M |
| 2023-09-30 | $84.00 | 6.5M | $545.58M | $15.72M | $1.11M | $530.97M |
| 2023-06-30 | $139.20 | 6.23M | $867.77M | $8.4M | $1.2M | $860.58M |