Aptose Biosciences Inc. Quarterly report [Sections 13 or 15(d)]

Quarterly report [Sections 13 or 15(d)]

Cover
- Document And Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Note 2 - Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Note 14 - Stock-based Compensation (Details Textual)

v3.25.3

Note 14 - Stock-based Compensation (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024	Jun. 01, 2021
Common Stock, No Par Value	$ 0		$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)	3,777
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)	10 years
Employee Stock Purchase Plan, Maximum Payroll Deduction, Percent	15.00%
Employee Stock Purchase Plan, Stock Purchase Price, Percent	85.00%
Common shares issued under the ESPP plan (Shares)	338	922
Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount	$ 200
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)	1 year
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)	0	13,605,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	0	0
New Incentive Plan [Member]
Common Stock, No Par Value				$ 0
New Incentive Plan [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)				23,046

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The percent maximum payroll deduction under an employee stock purchase plan.

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Face amount per share of no-par value common stock.

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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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