Aptose Biosciences(APTO) - 2025 Q1 - Quarterly Results

EXHIBIT 99.1 Aptose Reports First Quarter 2025 Results Highlights Progress in TUSCANY Clinical Trial of Tuspetinib in AML Triple Frontline Therapy OTC Exchange - Aptose common shares ("the Common Shares") are now listed for trading on the OTC Markets (OTC) under the ticker "APTOF," in addition to the Company's continued listing on the Toronto Stock Exchange (TSX) under the symbol "APS". This significantly expands Aptose accessibility for U.S.-based investors and enhances overall share liquidity by enabling ...