---
schema_version: "secwatch.filing_event.v1"
accession: "0001171843-26-001837"
form_type: "8-K"
ticker: "APTOF"
cik: "0000882361"
company_name: "Aptose Biosciences Inc."
filed_at: "2026-03-23T23:59:59+00:00"
generated_at: "2026-05-15T09:26:20.581785+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.62
calibrated_materiality_score: 0.62
confidence: "high"
source: SEC EDGAR
---

# Glass Lewis backs Aptose's plan for Hanmi acquisition; vote deadline March 27

## Summary
- Glass Lewis recommends shareholders vote FOR the arrangement with Hanmi and the continuance to ABCA.
- Proxy voting deadline is 11:00 a.m. EST on Friday, March 27, 2026.
- Special meeting reconvened for March 31, 2026, after SEC comments on the transaction statement.
- Board and Special Transaction Committee unanimously recommend voting FOR the arrangement.
- Deal is subject to court approval and TSX approval; Sodali & Co assisting with proxy solicitation.

## SEC filing metadata
- accession: 0001171843-26-001837
- form_type: 8-K
- ticker: APTOF
- cik: 0000882361
- company_name: Aptose Biosciences Inc.
- filed_at: 2026-03-23T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.62
- calibrated_materiality_score: 0.62
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/882361/000117184326001837/0001171843-26-001837-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/882361/000117184326001837/f8k_032326.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001171843-26-001837
- JSON: https://secwatch.observer/filing/0001171843-26-001837.json
- Plain text: https://secwatch.observer/filing/0001171843-26-001837.txt

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