---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-189841"
form_type: "8-K"
ticker: "APTOF"
cik: "0000882361"
company_name: "Aptose Biosciences Inc."
filed_at: "2025-08-27T23:59:59+00:00"
generated_at: "2026-05-17T09:52:09.378761+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Aptose Biosciences enters retention agreements with CEO, CFO, and CMO totaling ~$698K upon change of control

## Summary
- CEO William Rice receives $331,496 retention grant; CFO Fletcher Payne $167,059; CMO Rafael Bejar $199,947.
- Payments due within 5 days of a change of control closing.
- Grants forfeited if executive is not actively employed at change of control closing.
- Aims to reward, retain, and incentivize leadership team for long-term shareholder value.

## SEC filing metadata
- accession: 0001193125-25-189841
- form_type: 8-K
- ticker: APTOF
- cik: 0000882361
- company_name: Aptose Biosciences Inc.
- filed_at: 2025-08-27T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/882361/000119312525189841/0001193125-25-189841-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/882361/000119312525189841/d50849d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-189841
- JSON: https://secwatch.observer/filing/0001193125-25-189841.json
- Plain text: https://secwatch.observer/filing/0001193125-25-189841.txt

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