secwatch.observer — SEC 8-K summary ====================================== Issuer: Aptose Biosciences Inc. (APTOF) CIK: 0000882361 Form: 8-K Filed at: 2026-06-30T23:43:20+00:00 Accession: 0001171843-26-004406 Event type: m_and_a Sentiment: positive Materiality: 1.00 Item codes: 7.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Aptose Biosciences acquired by Hanmi Pharmaceutical for C$2.41/share; deal closed -------------------------------------------------------------------------------- - Aptose shareholders receive C$2.41 per share, a 28% premium over 30-day VWAP of C$1.88. - Acquisition by Hanmi Pharmaceutical closed; all outstanding shares not owned by Hanmi acquired. - Shareholder and court approvals obtained on March 31, 2026; Korean regulatory approvals received. - Common shares to be delisted from TSX on or about July 3, 2026; company to cease public reporting. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/882361/000117184326004406/0001171843-26-004406-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/882361/000117184326004406/f8k_063026.htm HTML page: https://secwatch.observer/filing/0001171843-26-004406 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer