On April 30, 2026 Aptose Biosciences Inc. ("Aptose" or the "Company") (TSX: APS; OTC: APTOF) reported that closing of the previously announced arrangement (the "Arrangement") with Hanmi Pharmaceutical Co. Ltd. ("Hanmi") and HS North America Ltd., a wholly owned subsidiary of Hanmi ("Hanmi Purchaser" and together with Hanmi, the "Hanmi Purchasers"), has been delayed as certain Korean regulatory approvals pertaining to the Arrangement remain in progress. The parties do not anticipate that the review will prevent closing and continue to work toward completing the Arrangement that they now target for the month of May. The Company will provide a further update when available.

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Transaction Details

As previously disclosed in the Company’s news release dated November 19, 2025 (here), upon the completion of the Arrangement, Hanmi will acquire all of the issued and outstanding common shares of Aptose ("Common Shares") that are not currently owned or controlled by the Hanmi Purchasers or their respective affiliates and shareholders of Aptose, other than the Hanmi Purchasers and their respective affiliates that hold any Common Shares, will receive C$2.41 in cash per Common Share, which represents a premium of 28% over Aptose’s 30-day VWAP of C$1.88 on the Toronto Stock Exchange for the period immediately preceding entering into the Arrangement Agreement.

(Press release, Hanmi, APR 30, 2026, View Source [SID1234664967])