secwatch.observer — SEC 8-K summary
======================================

Issuer:     Aptose Biosciences Inc. (APTOF)
CIK:        0000882361
Form:       8-K
Filed at:   2025-07-01T23:59:59+00:00
Accession:  0001171843-25-004249
Event type: other_material
Sentiment:  neutral
Materiality: 0.30
Item codes: 7.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Aptose Biosciences upgraded to OTCQB market; begins trading under APTOF
-----------------------------------------------------------------------

- Company upgraded to OTCQB Market, effective July 1, 2025.
- New ticker symbol APTOF on OTCQB.
- Continues trading on Toronto Stock Exchange under symbol APS.
- OTCQB requires current reporting and annual management certification.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/882361/000117184325004249/0001171843-25-004249-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/882361/000117184325004249/f8k_070125.htm
  HTML page:      https://secwatch.observer/filing/0001171843-25-004249

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer