---
schema_version: "secwatch.filing_event.v1"
accession: "0001171843-25-003935"
form_type: "8-K"
ticker: "APTOF"
cik: "0000882361"
company_name: "Aptose Biosciences Inc."
filed_at: "2025-06-17T23:59:59+00:00"
generated_at: "2026-05-19T05:46:11.070263+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Aptose obtains CEO cash advance; warns of possible insolvency without additional funding in coming days

## Summary
- CEO William Rice provides non-interest bearing, unsecured short-term cash advance to support payroll and obligations.
- Company warns it may not have sufficient resources and could enter insolvency proceedings without additional funding in coming days.
- Director Carol Ashe resigned effective June 16, 2025.
- Advance is a related-party transaction exempt from formal valuation and minority approval under MI 61-101.

## SEC filing metadata
- accession: 0001171843-25-003935
- form_type: 8-K
- ticker: APTOF
- cik: 0000882361
- company_name: Aptose Biosciences Inc.
- filed_at: 2025-06-17T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/882361/000117184325003935/0001171843-25-003935-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/882361/000117184325003935/f6k_061725.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001171843-25-003935
- JSON: https://secwatch.observer/filing/0001171843-25-003935.json
- Plain text: https://secwatch.observer/filing/0001171843-25-003935.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.