---
schema_version: "secwatch.filing_event.v1"
accession: "0001171843-22-007660"
form_type: "8-K"
ticker: "APTOF"
cik: "0000882361"
company_name: "Aptose Biosciences Inc."
filed_at: "2022-11-25T23:59:59+00:00"
generated_at: "2026-06-21T13:11:01.792428+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "high"
source: SEC EDGAR
---

# Aptose terminates $75M ATM equity distribution agreement with Piper Sandler and Canaccord

## Summary
- Terminated Equity Distribution Agreement dated May 5, 2020, effective Nov 18, 2022.
- No penalties associated with termination; company no longer intends to use facility.
- Prior to termination, only ~$86K in net proceeds raised from the $75M facility.
- Placement agents were Piper Sandler & Co. and Canaccord Genuity LLC.

## SEC filing metadata
- accession: 0001171843-22-007660
- form_type: 8-K
- ticker: APTOF
- cik: 0000882361
- company_name: Aptose Biosciences Inc.
- filed_at: 2022-11-25T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: high
- sec_items: 1.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/882361/000117184322007660/0001171843-22-007660-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/882361/000117184322007660/f8k_112522.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001171843-22-007660
- JSON: https://secwatch.observer/filing/0001171843-22-007660.json
- Plain text: https://secwatch.observer/filing/0001171843-22-007660.txt

## Key facts
- Material Agreements
  Aptose Biosciences Inc. terminated Equity Distribution Agreement with Piper Sandler & Co. and Canaccord Genuity LLC valued at up to an aggregate of $75,000,000 (effective 2022-11-18).
  - Action: termination
  - Agreement: atm program
  - Counterparty: Piper Sandler & Co. and Canaccord Genuity LLC
  - Value: up to an aggregate of $75,000,000
  - Effective: 2022-11-18
  source text: On November 18, 2022, Aptose Biosciences Inc. (the “Company”) delivered written notice to Piper Sandler & Co. and Canaccord Genuity LLC (together, the “Placement Agents”) to terminate that certain Equity Distribution Agreement dated May 5, 2020 by and between the Company and the Placement Agents (the “Equity Distribution Agreement”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/882361/000117184322007660/0001171843-22-007660-index.htm

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