---
schema_version: "secwatch.filing_event.v1"
accession: "0001171843-22-004578"
form_type: "8-K"
ticker: "APTOF"
cik: "0000882361"
company_name: "Aptose Biosciences Inc."
filed_at: "2022-06-28T23:59:59+00:00"
generated_at: "2026-06-24T22:47:32.240002+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Aptose Biosciences appoints Fletcher Payne as SVP and CFO with $430k base salary and 1M option grant

## Summary
- Appointment effective June 27, 2022; Payne reports to CEO.
- Base salary of $430,000; eligible for annual discretionary bonus up to 40% of base.
- Subject to board approval, granted options to purchase 1,000,000 common shares.
- Severance: without cause or for good reason – one year salary lump sum, average bonus, COBRA up to 12 months.
- Payne previously CFO at Synapse, Catalyst Bioscience, CytomX, Plexxikon, and others.

## SEC filing metadata
- accession: 0001171843-22-004578
- form_type: 8-K
- ticker: APTOF
- cik: 0000882361
- company_name: Aptose Biosciences Inc.
- filed_at: 2022-06-28T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/882361/000117184322004578/0001171843-22-004578-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/882361/000117184322004578/f8k_062822.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001171843-22-004578
- JSON: https://secwatch.observer/filing/0001171843-22-004578.json
- Plain text: https://secwatch.observer/filing/0001171843-22-004578.txt

## Key facts
- Executive change
  Fletcher Payne was appointed as Senior Vice President and Chief Financial Officer at Aptose Biosciences Inc..
  - Action: appointed
  - Role: Senior Vice President and Chief Financial Officer
  source text: On June 27, 2022, Aptose Biosciences Inc. (“we” or the “Company”) appointed Mr. Fletcher Payne as its Senior Vice President and Chief Financial Officer.
  evidence_url: https://www.sec.gov/Archives/edgar/data/882361/000117184322004578/0001171843-22-004578-index.htm

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