---
schema_version: "secwatch.filing_event.v1"
accession: "0001171843-25-008045"
form_type: "8-K"
ticker: "APTOF"
cik: "0000882361"
company_name: "Aptose Biosciences Inc."
filed_at: "2025-12-19T23:59:59+00:00"
generated_at: "2026-05-16T12:41:04.964469+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "medium"
source: SEC EDGAR
---

# Aptose reschedules special meeting for Hanmi acquisition pending SEC clearance

## Summary
- Special meeting moved from Jan 16, 2026 to later date in January 2026.
- Rescheduling due to awaiting final SEC clearance of proxy statement.
- Unanimous board recommendation to vote for the continuance and arrangement.
- Record date remains Dec 12, 2025; no changes to matters to be voted.

## SEC filing metadata
- accession: 0001171843-25-008045
- form_type: 8-K
- ticker: APTOF
- cik: 0000882361
- company_name: Aptose Biosciences Inc.
- filed_at: 2025-12-19T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: medium
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/882361/000117184325008045/0001171843-25-008045-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/882361/000117184325008045/f8k_121925.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001171843-25-008045
- JSON: https://secwatch.observer/filing/0001171843-25-008045.json
- Plain text: https://secwatch.observer/filing/0001171843-25-008045.txt

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