secwatch.observer — SEC 8-K summary ====================================== Issuer: Aptose Biosciences Inc. (APTOF) CIK: 0000882361 Form: 8-K Filed at: 2026-03-31T23:59:59+00:00 Accession: 0001171843-26-002103 Event type: m_and_a Sentiment: neutral Materiality: 0.80 Item codes: 7.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Aptose shareholders approve Hanmi go-private at C$2.41/share; FY net loss $25.5M -------------------------------------------------------------------------------- - Shareholders approved acquisition by Hanmi at C$2.41/share (28% premium over 30-day VWAP of C$1.88). - 84.87% of non-Hanmi shares voted for the arrangement; Alberta court issued final order; closing expected by end of April 2026. - FY2025 net loss $25.5M (flat vs $25.4M); cash $4.1M as of Dec 31, 2025; company notes insufficient cash to fund operations; relies on Hanmi advances. - TUS+VEN+AZA triplet in newly diagnosed AML showed 90% CR/CRh, 78% MRD negativity by central flow; no dose-limiting toxicities. - Hanmi provided over US$41M in debt facilities over past 18 months to support Aptose. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/882361/000117184326002103/0001171843-26-002103-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/882361/000117184326002103/f8k_033126.htm HTML page: https://secwatch.observer/filing/0001171843-26-002103 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer