On June 3, 2024 Aptose Biosciences Inc. ("Aptose" or the "Company") (NASDAQ: APTO, TSX: APS), a clinical-stage precision oncology company developing highly differentiated oral targeted agents to treat hematologic malignancies, reported the closing of its previously announced registered direct offering priced at-the-market under Nasdaq rules of 3,855,000 of its common shares (or common share equivalents in lieu thereof) at a purchase price of $1.15 per share (or per common share equivalent in lieu thereof) (Press release, Aptose Biosciences, JUN 3, 2024, View Source [SID1234643994]). Additionally, in a concurrent private placement, Aptose has issued unregistered series A warrants to purchase up to 3,855,000 common shares and series B warrants to purchase up to 3,855,000 common shares, each at an exercise price of $1.15 per share. The unregistered warrants will be exercisable beginning on the effective date of shareholder approval of the issuance of the shares issuable upon exercise of the warrants. The series A warrants will expire five years from the date of shareholder approval and the series B warrants will expire eighteen months from the date of shareholder approval.

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H.C. Wainwright & Co. acted as the exclusive placement agent for the offering.

The gross proceeds to the Company from the offering were approximately $4.43 million, before deducting the placement agent’s fees and other offering expenses. The Company currently intends to use the net proceeds from the offering for working capital and general corporate purposes.

The common shares (or common share equivalents in lieu thereof) offered in the registered direct offering (but excluding the unregistered warrants or the common shares underlying such unregistered warrants) described above were offered pursuant to a "shelf" registration statement on Form S-3 (Registration No. 333-267801), including a base prospectus, initially filed with the Securities and Exchange Commission ("SEC") on October 11, 2022, and declared effective by the SEC on October 21, 2022. The offering of the common shares (or common share equivalents in lieu thereof) was made only by means of a prospectus, including a prospectus supplement, forming a part of the effective registration statement. A final prospectus supplement and an accompanying base prospectus relating to, and describing the terms of, the registered direct offering was filed with the SEC and is available on the SEC’s website located at View Source Electronic copies of the prospectus supplement and accompanying base prospectus relating to the registered direct offering may also be obtained from H.C. Wainwright & Co., LLC at 430 Park Ave., New York, New York 10022, by telephone at (212) 856-5711, or by email at [email protected].

The unregistered warrants have not been registered under the Securities Act of 1933 and may not be offered or sold in the United States absent registration or an applicable exemption from registration requirements.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy these securities, nor shall there be any sale of these securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any such jurisdiction.