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Stockholders' Equity | 12 Months Ended
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Dec. 31, 2023
Stockholders' Equity Note [Abstract] |
Stockholders' Equity | Stockholders’ Equity On March 7, 2023, in connection with the closing of the Mer ger, the following is reflected on the consolidated statements of convertible preferred stock and stockholders’ equity (deficit) for the year ended December 31, 2023: (i) the sale of 3,730,608 shares of common stock in a pre-closing funding at $8.21 per share for total proceeds of $30.6 million, (ii) the issuance of 5,059,338 shares of common stock upon the settlement of the Company’s $35.0 million convertible promissory note, accrued interest and related derivative liability, (iii) the conversion of convertible preferred stock and exchangeable shares previously presented as noncontrolling interests into 18,872,711 shares of common stock, (iv) the issuance of 10,374,272 shares of common stock to Sesen Bio stockholders as consideration for the Merger. On April 17, 2023, the Company filed a universal shelf registration statement on Form S-3, which was declared effective on May 2, 2023 (Registration Statement). Under the Registration Statement, the Company may offer and sell up to $300.0 million of a variety of securities, including debt securities, common stock, preferred stock, depositary shares, subscription rights, warrants and units from time to time in one or more offerings at prices and on terms to be determined at the time of the offering. On May 12, 2023, the Company entered into an Amended and Restated Open Market Sale Agreement SM (Sale Agreement) with Jefferies LLC, as sales agent, pursuant to which the Company may offer and sell shares of common stock with an aggregate offering price of up to $100.0 million under an “at-the-market" offering program. Through December 31, 2023, the Company sold 226,533 shares for gross proceeds of $0.6 million. From January through March 2024, the Company sold an additional 931,250 shares for gross proceeds of $2.4 million. On June 6, 2023, the Company's stockholders approved an amendment to the Company's Restated Certificate of Incorporation to increase the number of authorized shares of the Company's common stock, $0.001 par value, from 100,000,000 shares to 350,000,000 shares and authorized 5,000,000 shares of preferred stock, $0.001 par value.

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