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 10 - Stock-based Compensation (Tables)

v3.26.1

Note 10 - Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2026

Notes To Financial Statements [Abstract]

Share-based Payment Arrangement, Option, Activity

Stock option activity for the three months ended March 31, 2026 is as follows:


	Options			Weighted average exercise price		Weighted average remaining contractual life (years)
Outstanding as of December 31, 2025		37,370		$	1,159.30		—
Forfeited/Expired		(287	)		1,234.41		—
Outstanding as of March 31, 2026		37,083		$	1,156.84		5.4
Exercisable as of March 31, 2026		32,212		$	1,299.89		5.1
Vested and expected to vest as of March 31, 2026		35,893		$	1,188.86		5.3

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

In the event stock options are granted, t

Share-based Payment Arrangement, Expensed and Capitalized, Amount

The Company recorded share-based compensation expense related to stock options as follows:


	Three Months Ended March 31,
	2026		2025
Research and development	$	51	$	141
General and administrative		78		185
	$	129	$	326

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