{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-26-119951","form_type":"8-K","ticker":"APTOF","cik":"0000882361","company_name":"Aptose Biosciences Inc.","filed_at":"2026-03-23T23:59:59+00:00","discovered_at":"2026-05-14T18:02:37.904360+00:00","generated_at":"2026-05-15T09:26:26.330337+00:00","sec_items":["1.01","5.02","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.2,"calibrated_materiality_score":0.2,"confidence":"high","headline":"Aptose amends CEO Rice's employment agreement; confirms no deferred compensation owed","bullets":["First Amendment to CEO William Rice's employment agreement confirms no deferred compensation plan was ever established.","Rice acknowledges sole responsibility for all individual taxes, penalties, and interest on benefits paid under agreement.","Amendment clarifies that references to 'Deferred Compensation Plan' in prior agreements are disregarded.","No change in Rice's role; continues as Chairman, President, and CEO."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-26-119951","json":"https://secwatch.observer/filing/0001193125-26-119951.json","markdown":"https://secwatch.observer/filing/0001193125-26-119951.md","text":"https://secwatch.observer/filing/0001193125-26-119951.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/882361/000119312526119951/0001193125-26-119951-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/882361/000119312526119951/d113888d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T09:26:26.330337+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"}