{"schema_version":"secwatch.filing_event.v1","accession":"0001171843-26-004406","form_type":"8-K","ticker":"APTOF","cik":"0000882361","company_name":"Aptose Biosciences Inc.","filed_at":"2026-06-30T23:43:20+00:00","discovered_at":"2026-07-01T10:05:00.265115+00:00","generated_at":"2026-07-01T10:05:39.653967+00:00","sec_items":["7.01","9.01"],"event_type":"m_and_a","sentiment":"positive","materiality_score":1.0,"calibrated_materiality_score":1.0,"confidence":"high","headline":"Aptose Biosciences acquired by Hanmi Pharmaceutical for C$2.41/share; deal closed","bullets":["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."],"urls":{"canonical":"https://secwatch.observer/filing/0001171843-26-004406","json":"https://secwatch.observer/filing/0001171843-26-004406.json","markdown":"https://secwatch.observer/filing/0001171843-26-004406.md","text":"https://secwatch.observer/filing/0001171843-26-004406.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/882361/000117184326004406/0001171843-26-004406-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/882361/000117184326004406/f8k_063026.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-07-01T10:05:39.653967+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}